Mevlüt Karaoğlu - Academia.edu (original) (raw)

Papers by Mevlüt Karaoğlu

Research paper thumbnail of Effect of supplemental ram horn hydrolysate (RHH) at different levels on growth performance and slaughter traits of broilers

Journal of the Science of Food and Agriculture, 2005

This study was carried out to determine the influence of ram horn hydrolysate (RHH) supplementati... more This study was carried out to determine the influence of ram horn hydrolysate (RHH) supplementation on the growth performance and slaughter traits of broilers. A total of 240 male broiler chicks (Ross 308), received from a commercial hatchery at 1 day of age, were allocated to four dietary treatments (H0, H1, H2 and H3 groups) in a completely randomized experimental design. Feed and water were offered ad libitum and lighting was continuous throughout the experimental period. The H0 group was fed with basal diet plus normal drinking water. The H1, H2 and H3 groups were fed with basal diet plus 1%, 2% and 3% RHH‐added water, respectively, in place of normal drinking water to meet the daily water requirements of broiler chicks from 1 to 28 days of age. All birds were housed in batteries from 1 to 21 days, and in grower broiler pens to 49 days. Feed intake and body weight gain were recorded weekly per pen. The average final body weights were 2524.9, 2601.2, 2441.7 and 2424.9 g for the H...

Research paper thumbnail of Growth Performance and Carcass Characteristics of Awassi, Tushin and Awassi x Tushin (F1) Lambs Under Grazing with Concentrate Supplementation

Http Dx Doi Org 10 1080 09712119 2002 9706357, Nov 11, 2011

Research paper thumbnail of Growth performance of purebred Awassi, Morkaraman and Tushin lambs and their crosses under semi-intensive management in Turkey

Small Ruminant Research, 2001

Growth performance of 168 Awassi (A), Morkaraman (M), Tushin (T) purebred lambs and their crosses... more Growth performance of 168 Awassi (A), Morkaraman (M), Tushin (T) purebred lambs and their crosses A Â M, M Â T, A Â M and T Â M reared under semi-intensive management in Turkey were evaluated. The lambs grazed on pasture for 84 days and were provided with a concentrate diet (1.5±2.0% of their live weight). Birth weight and average daily weight gain during the pre-grazing period for M,

Research paper thumbnail of Influence of Dietary Sorghum (Sorghum vulgare) and Corn Supplemented with Methionine on Cut-Up Pieces Weights of Broiler Carcass and Quality Properties of Breast and Drumsticks Meat

Food Science and Technology International, 2007

This research was carried out to determine the effects of sorghum (BS = basal diets containing 30... more This research was carried out to determine the effects of sorghum (BS = basal diets containing 30% sorghum), corn (BC = basal diets containing corn) and supplemental methionine (BSM = diet BS plus 0.69% methionine, BCM = diet BC plus 0.69% methionine) in broiler diets on the cold carcass weight and cut-up pieces weight of broilers and some chemical, physical and microbiological properties of breast and drumstick meats. A total 240 male (120) or female (120) broiler chicks (Ross-308) were allocated to four dietary treatments (BS, BSM, BC, and BCM groups) in a completely randomized experimental design. At the end of the trial all chicks were slaughtered, and then were stored at 3°C for 24 h. After standard dissection of carcasses, cut-up pieces are weighed. The breasts and drumstick muscles were analyzed for moisture, pH, ash, fat, thiobarbituric acid reactive substances (TBARS), color (L*, a*, and b*), total psychrotrophic, lactic acid, Micrococcus/Staphylococcus, S. aureus, and Ente...

Research paper thumbnail of Growth performance and carcass characteristics of Awassi lambs and Shami goat kids fed yeast culture in their finishing diet

Animal Feed Science and Technology, 2008

Two experiments were completed to examine effects of inclusion of a yeast culture (YC) to a diet ... more Two experiments were completed to examine effects of inclusion of a yeast culture (YC) to a diet based on barley grain and wheat straw on digestibility, growth and meat traits of Awassi lambs and Shami goat kids. Experiment 1 studied effects of YC on apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and N balance in sheep, while experiment 2 studied effects on growth performance and carcass composition of lambs and kids. The same diet was used in both experiments and the YC was added to the diet of treated groups at the level of 12.6 kg YC/tonne of diet. Addition of YC had no effect on apparent digestibility of DM, CP and NDF, but it increased (P<0.05) digestibility of OM and ADF. No differences occurred in N intake, output or retention. Addition of YC did not affect growth rate, or DM intake, in both lambs and kids. YC supplementation to lambs reduced hot carcass weight, cold dressing proportion and total muscle/bone ratio, but increased empty digestive tract weight. There were no changes in back fat thickness, intermuscular fat of the leg muscle, and weights and proportions of carcass cuts. Measures of kids' carcass characteristics and quality also did not differ. Only cuts of leg and shoulder differed (P<0.05) when calculated as a proportion of the whole carcass cut. Results show that YC supplementation increased digestibility with no effect on growth, feed intake or feed

Research paper thumbnail of Growth curves in Awassi, Red-karaman and Tushin lambs

Research paper thumbnail of Carcass and commercial cuts yield in broilers of different ages fed diets supplemented with probiotics

African Journal of Food Science, 2014

In this study, the carcass and commercial cuts weights and yields in broilers of different ages f... more In this study, the carcass and commercial cuts weights and yields in broilers of different ages fed diets supplemented with probiotics were determined. A total of 336 male broiler chicks ( Ross-308 ) were randomly allocated into three treatment groups (P 0, P 1 and P 2). A basal diet (P 0), basal diet plus 0.01% (P 1) and 0.02% (P 2) probiotic ( Saccharomyces cerevisiae , 4x10 8 cfu g -1 ) were offered to experimental groups. At the end of the trial, all chicks were slaughtered and stored at 3 °C for 24 hours. The cold carcass weights were determined, and then the carcasses were dissected into neck, whole wing, wing drumette, winglet, wing tip, whole breast, breast fillet, breast skin, front back, thigh, drumstick, hind back and tail as cuts up. All cuts up were weighed and their yields were calculated. The use of probiotic in broiler diet had significant effects on whole breast (p<0.05), breast fillets (p<0.01) and front back (p<0.01) weights. The weightiest breast fillet ...

Research paper thumbnail of Zootekni̇ Bölümü Ve Doğu Anadolu Bölgesi̇'Nde Yapilan Çalişmalar

Journal of the Faculty of Agriculture, 2000

OZET: Genis bir hayvancilik potansiyeline sahip Dogu Anadolu Bolgesinde Zootekni Bolumu olarak, c... more OZET: Genis bir hayvancilik potansiyeline sahip Dogu Anadolu Bolgesinde Zootekni Bolumu olarak, cesitli bilimsel etkinlik ve calismalarla bolge hayvanciligina ait problemlerin icspll edilmesi ve cozumu ile ilgili hususlar uzerinde yogun calinmalar yapilmistir. Hayvancilik sektorunde ulke ve bolge yetistiricisinin kârliligini ve verimliligini artirmak amaciyla degisik hayvan turleri uzerinde gerceklestirilen cok sayida arastirmalardan ancak bir kismi bu makalede sonuclariyla birlikte ozetlenmistir.

Research paper thumbnail of Effects of supplementation of dietary humate, probiotic, and their combination on performance, egg quality, and yolk fatty acid composition of laying hens

Tropical Animal Health and Production, 2021

This study was carried out to determine the effects of addition of humate, probiotic, and their c... more This study was carried out to determine the effects of addition of humate, probiotic, and their combination into diets on performance, egg quality, and yolk fatty acid composition of hens during the second laying period. Lohmann LSL white layers ( n = 192), 46 weeks of age, were randomly divided into 4 groups and fed with basal diet (control, C), 0.3% humate (H), 0.3% probiotic (P), 0.15% humate + 0.15% probiotic (HP) for 18 weeks. Feed consumption and egg production were determined daily, egg weight was measured biweekly, and body weights were recorded at the beginning and the end of the experiment. Also, 12 egg samples from each group were randomly collected to determine the egg quality every 30 days. Laying performance, yolk color, and fatty acid composition were significantly ( P < 0.05 and P < 0.01) affected by addition of humate, probiotic, and their combination into diets of layers. The HP group had higher cracked egg yield and feed conversion ratio values than control and H and P groups. Except for egg yolk color, the other egg quality parameters such as shape index, shell strength, shell thickness, albumen index, yolk index, and Haught unit were not affected by treatment ( P < 0.05 and P < 0.01). The egg yolks of treatment groups had less stearic acid than those of control group. In conclusion, supplementation of humate and probiotic into the diets of laying hens increased monounsaturated fatty acids in yolk and improved feed conversion ratio and egg yolk color.

Research paper thumbnail of Effect of dietary probiotic on the pH and colour characteristics of carcasses, breast fillets and drumsticks of broilers

Animal Science, 2004

This research was carried out to determine the effects of commercial probiotic (115-Biogallinox) ... more This research was carried out to determine the effects of commercial probiotic (115-Biogallinox) on the colour properties of carcasses and dissected products in broilers. Ross-308 male chicks were given probiotic (P0:0 g/kg, P1:1 g/kg and P2:2 g/kg) containing Saccharomyces cerevisiae for 49 days. At the end of the trial all birds were slaughtered, and pH and skin colour of the carcasses were determined at various times during the first 24 h (1, 3, 7, 12, 17 and 24 h). After dissection, breasts and drumsticks were divided into two groups for vacuum packaging and aerobic packaging. Packaged breasts and drumsticks were stored at 3 ± 0.5°C for 12 days. During the storage period, the colours of breast meat, drumstick meat and drumstick skin were determined.pH values of carcasses decreased (P < 0.01) over the 24-h period post mortem. The pH values of the P1 group were lower than the P0 and P2 groups (P < 0.01). L*, a* and b* values increased during the 24-h period and the P0 group ...

Research paper thumbnail of Ek Konsantre Yemle Beslenen İvesi̇ Ve Morkaraman Irki Kuzularin Erken Yaşta Damizlikta Kullanilma Olanaklari Üzeri̇ne Bi̇r Araştirma / a Research on Possibility of Early Breeding in Awassi and Morkaraman Ewe Lambs Fed with Supplementation Concentrate

Journal of the Faculty of Agriculture, Jan 10, 2011

Research paper thumbnail of Multi-Enzyme Supplementation to Peak Producing Hens Fed Corn-Soybean Meal Based Diets

International Journal of Poultry Science, 2006

This experiment was conducted to evaluate the effects of multi-enzyme supplementation on laying p... more This experiment was conducted to evaluate the effects of multi-enzyme supplementation on laying performance, metabolic profile and egg quality of peak producing hens. Lohman layers (n = 144) were blocked according to the location of cages. After one week of the adaptation period, hens were randomly assigned to receive one of three corn-soybean meal based diets supplemented with multi-enzyme (0, 1, or 2 g/kg) from 30 to 46 weeks of age as 12 replicate cages of 4 hens. The active ingredients of the multienzyme supplement were fungal xylanase, fungal −gluconase,"−amylase,pectinase,-gluconase, "-amylase, pectinase, −gluconase,"−amylase,pectinase,-gluconase, endo-$gluconase, pentosonase, pectinase and hemicellulase. Egg production (EP) and feed intake (FI) were measured daily and egg weight was measured fortnightly. Feed conversion ratio (FCR) was expressed as kilogram of feed consumed per kilogram of egg produced. Two eggs were collected randomly from each cage every 4 weeks to determine egg quality. Body weights (BW) were measured at the beginning and end of the experiment. Blood was also sampled at the end of the experiment to evaluate metabolic profile. The data were analyzed using ANOVA as repeated measures with time being as subplot. The multi-enzyme supplementation did not affect BW, FI and EP; decreased FI; and improved FCR. Except for serum albumin and yolk index, none of metabolic profile and egg quality parameters was affected by the dietary treatments. In conclusion, despite no changes in egg production, decreased feed intake and consequently, improved feed conversion in response to multi-enzyme supplementation could be attributed to enhanced utilization of nutrients.

Research paper thumbnail of Nutrition Practice to Alleviate the Adverse Effects of Stress on Laying Performance, Metabolic Profile, and Egg Quality in Peak Producing Hens: I. The Humate Supplementation

Asian-Australasian Journal of Animal Sciences, 2005

This experiment was conducted to determine the effects of cage density (CD) and humate supplement... more This experiment was conducted to determine the effects of cage density (CD) and humate supplementation (HS) on laying performance, metabolic profile, and egg quality during the peak production period in hens. Lohman layers (n = 180, 46 wks of age) were blocked according to the location of cages and then allocated randomly to two levels of CD (4 or 6 hens per cage or 540 vs. 360 cm 2 /hen) and three levels of HS (0, 0.15, and 0.30%). Egg production (EP) and feed consumption (FC) were measured daily; egg weight was measured biweekly ; and BW was measured before and after the experiment. Blood and additional egg samples were obtained at the end of the experiment for determination of metabolic profile and egg quality. The data were analyzed using two-way ANOVA as repeated measures. Except for FC, CD did not affect laying performance parameters. Hens placed in high-density cages had lower FC than hens placed in normal-density cages. Increasing HS level linearly increased FC, EP, and feed conversion ratio (FCR). There was a CD by HS interaction effect on FC and EP. Hens placed in high-density cages had greater serum glucose, total protein, albumin, globulin, Ca, and P concentrations and tended to have greater serum corticosterone concentration than hens placed in normaldensity cages. Increasing HS level linearly increased serum glucose, total protein, albumin, globulin, creatine, and Ca concentrations and linearly decreased serum triglyceride and very low-density lipoprotein concentrations. There was a CD by HS interaction effect on serum glucose and albumin concentrations. There were no alterations in egg quality parameters in response to increasing CD. Albumen index and Haugh unit decreased linearly and other egg quality parameters did not change as HS level increased. In conclusion, increased caging density adversely affected metabolic profile, despite insignificantly deteriorating laying performance. Moreover, benefits from humate supplementation seem to be more noteworthy for hens housed in stressing conditions than for hens housed in standard conditions.

Research paper thumbnail of Effect of Supplemental Humate at Different Levels on the Growth Performance, Slaughter and Carcass Traits of Broilers

International Journal of Poultry Science, 2004

Research paper thumbnail of A study on possibility of Rosa canina seed use as feed ıngredient in diets of Morkaraman male lambs

Tropical Animal Health and Production, 2011

This experiment was carried out to evaluate the ground Rosa canina seed at various levels (0%, 5%... more This experiment was carried out to evaluate the ground Rosa canina seed at various levels (0%, 5%, and 15%) in barley-soybean-based concentrates offered to Morkaraman male lambs at approximately 8 months of age, on fattening performance, carcass, and meat quality characteristics. The lambs were divided into three treatment groups including R1 (concentrate without R. canina seed; n=12), R2 (concentrate with 5% R. canina seed; n=12), and R3 (concentrate with 15% R. canina seed; n=12) at the beginning of fattening period. The soybean meal was used as main protein source in treatment groups. All of the groups were fed a diet consisting of concentrate offered ad libitum and 300 g of grass hay per lamb per day during 60day fattening period. The effect of diet on daily weight gain was found statistically significant. The control group had higher daily weight gain than R3 groups with 15% of ground R. canina seed. The hot carcass and cold carcass weights and dressing percentage values were affected by diets, and R3 group fed concentrate with 15% R. canina seed had higher carcass weights and dressing percentages than R1 and R2 groups. Differences among the groups in terms of leg, rib, and hindshank weights were found highly significant. While R1 and R2 groups were not significantly different, R3 group was significantly higher to R1 and R2 groups in leg, rib, and hindshank weights. In addition, meat color parameters and pH values were not affected by diets in present study.

Research paper thumbnail of Effects of different raising systems on colour and quality characteristics of Turkish Pekin duck meats

South African Journal of Animal Science, 2008

The current trial was conducted to determine the influence of different raising systems on the me... more The current trial was conducted to determine the influence of different raising systems on the meat quality properties of male Turkish Pekin ducks. Ninety male ducklings were randomly allocated to three experimental groups: an animal-fish integrated farming group (IG), a non-animal-fish integrated farming group (NIG) and a poultry house group (PHG). All ducklings were fed a starter diet from weeks 2 to 6 and a finisher diet from weeks 6 to 10. Feed and water were offered ad libitum. At the end of the trial all ducks were slaughtered and the carcasses were stored at 3 °C for 24 hours, after which L*, a* and b* values of the carcass skins were measured. After standard dissection of carcasses, pectoralis muscles were obtained on which pH, colour (L*, a*, b*, C and H), total aerobic mesophilic, total aerobic psychrotrophic, lactic acid bacteria, Micrococcus/Staphylococcus, yeast-mould and Enterobacteriaceae counts were determined. The different raising systems of the ducks had significant effects on the pH, total aerobic mesophilic, Enterobacteriaceae, and L* and b* values of the pectoralis muscle. The lowest pH, total aerobic mesophilic and Enterobacteriaceae counts were found in the PHG group. The lowest L* values for the pectoralis muscle were found in the IG group while the highest a* value was recorded in the IG group. Significant differences in skin colour were observed between the experimental groups. For all production groups, all microbial counts were found to be within acceptable ranges. However, pH, total aerobic mesophilic and Enterobacteriaceae results were found to be lower in the PHG group than in the other groups. Different raising systems were thus found to affect the meat and skin colour of ducks, which may influence the preference of consumers.

Research paper thumbnail of Growth performance and carcass characteristics of Awassi, Morkaraman and Tushin lambs grazed on pasture and supported with concentrate

Small Ruminant Research, 2002

Growth and slaughter and carcass traits of Awassi (A), Morkaraman (M) and Tushin (T) lambs weaned... more Growth and slaughter and carcass traits of Awassi (A), Morkaraman (M) and Tushin (T) lambs weaned at 2.5 months of age were evaluated. The lambs were fed a concentrate mixture and allowed to graze for 70 days. M lambs showed the highest performance in daily weight gain and the amount of concentrate consumed in addition to grazing on pasture per unit body weight gain. The effects of breed and sex of lamb on daily weight gain on pasture were signi®cant and highly signi®cant, respectively. Male lambs were superior to female lambs with respect to daily weight gain. Hot carcass of M lambs was heavier than those of A and T lambs. M had higher dressing percentage and larger M. longissimus dorsi area than those of A and T lambs. The proportions of wholesale cuts such as loin, sirloin, rib and hindshank were affected by breed. T lambs showed better performance than M lambs in proportion of loin cuts. In addition, the proportion of sirloin and rib cuts for A lambs was found to be higher than that of M lambs. M lambs had signi®cantly higher proportion of hindshank than those of A and T lambs.

Research paper thumbnail of Effects of vitamin E supplementation on performance and meat quality traits of Morkaraman male lambs

Meat Science, 2003

This research was carried out to determine the effects of vitamin E supplementation on meat quali... more This research was carried out to determine the effects of vitamin E supplementation on meat quality traits of approximate 8 months of age Morkaraman male lambs. The lambs were divided into two groups-control (CG, n=7) and experimental (VG, n=6)-at the beginning of fattening period. The diet given to the CG and VG consisted of concentrate and grass hay. In addition, the VG received a supplement of 45 mg vitamin E per lamb in a day during a 75-day fattening period. At the end of the study, average daily weight gain and feed conversion efficiency values as to feed basis were found to be 208 g and 6.3 for CG and 223 g and 6.0 for VG groups, respectively. Vitamin E supplementation resulted in 8.8% improvement in feed conversion efficiency. In the same way, vitamin E supplementation resulted in 6.7% increase in daily weight gain. Slaughter and carcass characteristics of lambs were also determined, but fattening performance, slaughter and carcass characteristics were not significantly different between groups. The effects of vitamin E on meat characteristics, meat colour (L*, a* and b*), thiobarbituric acid reactive substances content (TBARS), drip loss and pH were determined using m. longissimus dorsi (LD) muscles obtained from CG and VG. Though the effect of vitamin E supplementation on most of the meat quality traits was not statistically significant (P> 0.05), L* and a* values in LD muscle from VG were preserved for a period of 12 days of maturation. In addition, a* (redness) tended to increase slightly. TBARS values in samples from CG were found to be higher than those of vitamin E treatment group. In this study, it was also concluded that drip loss was relatively preserved by vitamin E supplementation. In conclusion, vitamin E supplementation of Morkaraman male lambs at an inclusion rate over the amount of nutritional recommendations, significantly reduced lipid oxidation, drip loss and tended to maintain meat redness.

Research paper thumbnail of Effect of breed on fattening performance, slaughter and meat quality characteristics of Awassi and Morkaraman lambs

Livestock Science, 2009

The influence of breed on fattening performance, slaughter and meat quality traits was studied in... more The influence of breed on fattening performance, slaughter and meat quality traits was studied in Awassi and Morkaraman male lambs at approximately 8 months of age. All of the groups were fed a diet consisting of concentrate mixture offered ad libitum, and 300 g of grass hay per lamb per day during 60-day fattening period. Initial live weight, final live weight, daily weight gain and feed conversion efficiency (concentrate and hay consumption for 1 kg of live weight gain) were 39.63 kg, 55.08 kg, 0.258 kg and 6.37 for Awassi; 40.54 kg, 55.58 kg, 0.234 kg and 6.77 for Morkaraman, respectively. The effect of breed on fattening performance and slaughter traits except for LD area was not significant. In addition, meat colour parameters (L⁎ = lightness, a⁎ = redness, b⁎ = yellowness, H = hue angle and C = chroma), pH values, drip loss and sensory attributes were not affected by breed in present study. A significant muscle effect was observed for instrumental measurements of some meat quality characteristics as meat colour parameters (L⁎, a⁎ and C), collagen, drip loss, pH, moisture and protein content, WBS, and for some sensory attributes (tenderness, juiciness, acceptability and number of chewing). Results of this study indicate that fattening performance, slaughter and meat quality traits were similar between Awassi and Morkaraman male lambs.

Research paper thumbnail of The effects of diets containing different levels of common vetch (Vicia sativa) seed on fattening performance, carcass and meat quality characteristics of Awassi male lambs

Journal of the Science of Food and Agriculture, 2005

The livestock sector plays a significant economic role in developing countries such as Turkey and... more The livestock sector plays a significant economic role in developing countries such as Turkey and is essential for the food security of rural populations. However, inadequacy of animal feed resources is most often the limiting factor in the development of livestock production. Feed ...

Research paper thumbnail of Effect of supplemental ram horn hydrolysate (RHH) at different levels on growth performance and slaughter traits of broilers

Journal of the Science of Food and Agriculture, 2005

This study was carried out to determine the influence of ram horn hydrolysate (RHH) supplementati... more This study was carried out to determine the influence of ram horn hydrolysate (RHH) supplementation on the growth performance and slaughter traits of broilers. A total of 240 male broiler chicks (Ross 308), received from a commercial hatchery at 1 day of age, were allocated to four dietary treatments (H0, H1, H2 and H3 groups) in a completely randomized experimental design. Feed and water were offered ad libitum and lighting was continuous throughout the experimental period. The H0 group was fed with basal diet plus normal drinking water. The H1, H2 and H3 groups were fed with basal diet plus 1%, 2% and 3% RHH‐added water, respectively, in place of normal drinking water to meet the daily water requirements of broiler chicks from 1 to 28 days of age. All birds were housed in batteries from 1 to 21 days, and in grower broiler pens to 49 days. Feed intake and body weight gain were recorded weekly per pen. The average final body weights were 2524.9, 2601.2, 2441.7 and 2424.9 g for the H...

Research paper thumbnail of Growth Performance and Carcass Characteristics of Awassi, Tushin and Awassi x Tushin (F1) Lambs Under Grazing with Concentrate Supplementation

Http Dx Doi Org 10 1080 09712119 2002 9706357, Nov 11, 2011

Research paper thumbnail of Growth performance of purebred Awassi, Morkaraman and Tushin lambs and their crosses under semi-intensive management in Turkey

Small Ruminant Research, 2001

Growth performance of 168 Awassi (A), Morkaraman (M), Tushin (T) purebred lambs and their crosses... more Growth performance of 168 Awassi (A), Morkaraman (M), Tushin (T) purebred lambs and their crosses A Â M, M Â T, A Â M and T Â M reared under semi-intensive management in Turkey were evaluated. The lambs grazed on pasture for 84 days and were provided with a concentrate diet (1.5±2.0% of their live weight). Birth weight and average daily weight gain during the pre-grazing period for M,

Research paper thumbnail of Influence of Dietary Sorghum (Sorghum vulgare) and Corn Supplemented with Methionine on Cut-Up Pieces Weights of Broiler Carcass and Quality Properties of Breast and Drumsticks Meat

Food Science and Technology International, 2007

This research was carried out to determine the effects of sorghum (BS = basal diets containing 30... more This research was carried out to determine the effects of sorghum (BS = basal diets containing 30% sorghum), corn (BC = basal diets containing corn) and supplemental methionine (BSM = diet BS plus 0.69% methionine, BCM = diet BC plus 0.69% methionine) in broiler diets on the cold carcass weight and cut-up pieces weight of broilers and some chemical, physical and microbiological properties of breast and drumstick meats. A total 240 male (120) or female (120) broiler chicks (Ross-308) were allocated to four dietary treatments (BS, BSM, BC, and BCM groups) in a completely randomized experimental design. At the end of the trial all chicks were slaughtered, and then were stored at 3°C for 24 h. After standard dissection of carcasses, cut-up pieces are weighed. The breasts and drumstick muscles were analyzed for moisture, pH, ash, fat, thiobarbituric acid reactive substances (TBARS), color (L*, a*, and b*), total psychrotrophic, lactic acid, Micrococcus/Staphylococcus, S. aureus, and Ente...

Research paper thumbnail of Growth performance and carcass characteristics of Awassi lambs and Shami goat kids fed yeast culture in their finishing diet

Animal Feed Science and Technology, 2008

Two experiments were completed to examine effects of inclusion of a yeast culture (YC) to a diet ... more Two experiments were completed to examine effects of inclusion of a yeast culture (YC) to a diet based on barley grain and wheat straw on digestibility, growth and meat traits of Awassi lambs and Shami goat kids. Experiment 1 studied effects of YC on apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and N balance in sheep, while experiment 2 studied effects on growth performance and carcass composition of lambs and kids. The same diet was used in both experiments and the YC was added to the diet of treated groups at the level of 12.6 kg YC/tonne of diet. Addition of YC had no effect on apparent digestibility of DM, CP and NDF, but it increased (P<0.05) digestibility of OM and ADF. No differences occurred in N intake, output or retention. Addition of YC did not affect growth rate, or DM intake, in both lambs and kids. YC supplementation to lambs reduced hot carcass weight, cold dressing proportion and total muscle/bone ratio, but increased empty digestive tract weight. There were no changes in back fat thickness, intermuscular fat of the leg muscle, and weights and proportions of carcass cuts. Measures of kids' carcass characteristics and quality also did not differ. Only cuts of leg and shoulder differed (P<0.05) when calculated as a proportion of the whole carcass cut. Results show that YC supplementation increased digestibility with no effect on growth, feed intake or feed

Research paper thumbnail of Growth curves in Awassi, Red-karaman and Tushin lambs

Research paper thumbnail of Carcass and commercial cuts yield in broilers of different ages fed diets supplemented with probiotics

African Journal of Food Science, 2014

In this study, the carcass and commercial cuts weights and yields in broilers of different ages f... more In this study, the carcass and commercial cuts weights and yields in broilers of different ages fed diets supplemented with probiotics were determined. A total of 336 male broiler chicks ( Ross-308 ) were randomly allocated into three treatment groups (P 0, P 1 and P 2). A basal diet (P 0), basal diet plus 0.01% (P 1) and 0.02% (P 2) probiotic ( Saccharomyces cerevisiae , 4x10 8 cfu g -1 ) were offered to experimental groups. At the end of the trial, all chicks were slaughtered and stored at 3 °C for 24 hours. The cold carcass weights were determined, and then the carcasses were dissected into neck, whole wing, wing drumette, winglet, wing tip, whole breast, breast fillet, breast skin, front back, thigh, drumstick, hind back and tail as cuts up. All cuts up were weighed and their yields were calculated. The use of probiotic in broiler diet had significant effects on whole breast (p<0.05), breast fillets (p<0.01) and front back (p<0.01) weights. The weightiest breast fillet ...

Research paper thumbnail of Zootekni̇ Bölümü Ve Doğu Anadolu Bölgesi̇'Nde Yapilan Çalişmalar

Journal of the Faculty of Agriculture, 2000

OZET: Genis bir hayvancilik potansiyeline sahip Dogu Anadolu Bolgesinde Zootekni Bolumu olarak, c... more OZET: Genis bir hayvancilik potansiyeline sahip Dogu Anadolu Bolgesinde Zootekni Bolumu olarak, cesitli bilimsel etkinlik ve calismalarla bolge hayvanciligina ait problemlerin icspll edilmesi ve cozumu ile ilgili hususlar uzerinde yogun calinmalar yapilmistir. Hayvancilik sektorunde ulke ve bolge yetistiricisinin kârliligini ve verimliligini artirmak amaciyla degisik hayvan turleri uzerinde gerceklestirilen cok sayida arastirmalardan ancak bir kismi bu makalede sonuclariyla birlikte ozetlenmistir.

Research paper thumbnail of Effects of supplementation of dietary humate, probiotic, and their combination on performance, egg quality, and yolk fatty acid composition of laying hens

Tropical Animal Health and Production, 2021

This study was carried out to determine the effects of addition of humate, probiotic, and their c... more This study was carried out to determine the effects of addition of humate, probiotic, and their combination into diets on performance, egg quality, and yolk fatty acid composition of hens during the second laying period. Lohmann LSL white layers ( n = 192), 46 weeks of age, were randomly divided into 4 groups and fed with basal diet (control, C), 0.3% humate (H), 0.3% probiotic (P), 0.15% humate + 0.15% probiotic (HP) for 18 weeks. Feed consumption and egg production were determined daily, egg weight was measured biweekly, and body weights were recorded at the beginning and the end of the experiment. Also, 12 egg samples from each group were randomly collected to determine the egg quality every 30 days. Laying performance, yolk color, and fatty acid composition were significantly ( P < 0.05 and P < 0.01) affected by addition of humate, probiotic, and their combination into diets of layers. The HP group had higher cracked egg yield and feed conversion ratio values than control and H and P groups. Except for egg yolk color, the other egg quality parameters such as shape index, shell strength, shell thickness, albumen index, yolk index, and Haught unit were not affected by treatment ( P < 0.05 and P < 0.01). The egg yolks of treatment groups had less stearic acid than those of control group. In conclusion, supplementation of humate and probiotic into the diets of laying hens increased monounsaturated fatty acids in yolk and improved feed conversion ratio and egg yolk color.

Research paper thumbnail of Effect of dietary probiotic on the pH and colour characteristics of carcasses, breast fillets and drumsticks of broilers

Animal Science, 2004

This research was carried out to determine the effects of commercial probiotic (115-Biogallinox) ... more This research was carried out to determine the effects of commercial probiotic (115-Biogallinox) on the colour properties of carcasses and dissected products in broilers. Ross-308 male chicks were given probiotic (P0:0 g/kg, P1:1 g/kg and P2:2 g/kg) containing Saccharomyces cerevisiae for 49 days. At the end of the trial all birds were slaughtered, and pH and skin colour of the carcasses were determined at various times during the first 24 h (1, 3, 7, 12, 17 and 24 h). After dissection, breasts and drumsticks were divided into two groups for vacuum packaging and aerobic packaging. Packaged breasts and drumsticks were stored at 3 ± 0.5°C for 12 days. During the storage period, the colours of breast meat, drumstick meat and drumstick skin were determined.pH values of carcasses decreased (P < 0.01) over the 24-h period post mortem. The pH values of the P1 group were lower than the P0 and P2 groups (P < 0.01). L*, a* and b* values increased during the 24-h period and the P0 group ...

Research paper thumbnail of Ek Konsantre Yemle Beslenen İvesi̇ Ve Morkaraman Irki Kuzularin Erken Yaşta Damizlikta Kullanilma Olanaklari Üzeri̇ne Bi̇r Araştirma / a Research on Possibility of Early Breeding in Awassi and Morkaraman Ewe Lambs Fed with Supplementation Concentrate

Journal of the Faculty of Agriculture, Jan 10, 2011

Research paper thumbnail of Multi-Enzyme Supplementation to Peak Producing Hens Fed Corn-Soybean Meal Based Diets

International Journal of Poultry Science, 2006

This experiment was conducted to evaluate the effects of multi-enzyme supplementation on laying p... more This experiment was conducted to evaluate the effects of multi-enzyme supplementation on laying performance, metabolic profile and egg quality of peak producing hens. Lohman layers (n = 144) were blocked according to the location of cages. After one week of the adaptation period, hens were randomly assigned to receive one of three corn-soybean meal based diets supplemented with multi-enzyme (0, 1, or 2 g/kg) from 30 to 46 weeks of age as 12 replicate cages of 4 hens. The active ingredients of the multienzyme supplement were fungal xylanase, fungal −gluconase,"−amylase,pectinase,-gluconase, "-amylase, pectinase, −gluconase,"−amylase,pectinase,-gluconase, endo-$gluconase, pentosonase, pectinase and hemicellulase. Egg production (EP) and feed intake (FI) were measured daily and egg weight was measured fortnightly. Feed conversion ratio (FCR) was expressed as kilogram of feed consumed per kilogram of egg produced. Two eggs were collected randomly from each cage every 4 weeks to determine egg quality. Body weights (BW) were measured at the beginning and end of the experiment. Blood was also sampled at the end of the experiment to evaluate metabolic profile. The data were analyzed using ANOVA as repeated measures with time being as subplot. The multi-enzyme supplementation did not affect BW, FI and EP; decreased FI; and improved FCR. Except for serum albumin and yolk index, none of metabolic profile and egg quality parameters was affected by the dietary treatments. In conclusion, despite no changes in egg production, decreased feed intake and consequently, improved feed conversion in response to multi-enzyme supplementation could be attributed to enhanced utilization of nutrients.

Research paper thumbnail of Nutrition Practice to Alleviate the Adverse Effects of Stress on Laying Performance, Metabolic Profile, and Egg Quality in Peak Producing Hens: I. The Humate Supplementation

Asian-Australasian Journal of Animal Sciences, 2005

This experiment was conducted to determine the effects of cage density (CD) and humate supplement... more This experiment was conducted to determine the effects of cage density (CD) and humate supplementation (HS) on laying performance, metabolic profile, and egg quality during the peak production period in hens. Lohman layers (n = 180, 46 wks of age) were blocked according to the location of cages and then allocated randomly to two levels of CD (4 or 6 hens per cage or 540 vs. 360 cm 2 /hen) and three levels of HS (0, 0.15, and 0.30%). Egg production (EP) and feed consumption (FC) were measured daily; egg weight was measured biweekly ; and BW was measured before and after the experiment. Blood and additional egg samples were obtained at the end of the experiment for determination of metabolic profile and egg quality. The data were analyzed using two-way ANOVA as repeated measures. Except for FC, CD did not affect laying performance parameters. Hens placed in high-density cages had lower FC than hens placed in normal-density cages. Increasing HS level linearly increased FC, EP, and feed conversion ratio (FCR). There was a CD by HS interaction effect on FC and EP. Hens placed in high-density cages had greater serum glucose, total protein, albumin, globulin, Ca, and P concentrations and tended to have greater serum corticosterone concentration than hens placed in normaldensity cages. Increasing HS level linearly increased serum glucose, total protein, albumin, globulin, creatine, and Ca concentrations and linearly decreased serum triglyceride and very low-density lipoprotein concentrations. There was a CD by HS interaction effect on serum glucose and albumin concentrations. There were no alterations in egg quality parameters in response to increasing CD. Albumen index and Haugh unit decreased linearly and other egg quality parameters did not change as HS level increased. In conclusion, increased caging density adversely affected metabolic profile, despite insignificantly deteriorating laying performance. Moreover, benefits from humate supplementation seem to be more noteworthy for hens housed in stressing conditions than for hens housed in standard conditions.

Research paper thumbnail of Effect of Supplemental Humate at Different Levels on the Growth Performance, Slaughter and Carcass Traits of Broilers

International Journal of Poultry Science, 2004

Research paper thumbnail of A study on possibility of Rosa canina seed use as feed ıngredient in diets of Morkaraman male lambs

Tropical Animal Health and Production, 2011

This experiment was carried out to evaluate the ground Rosa canina seed at various levels (0%, 5%... more This experiment was carried out to evaluate the ground Rosa canina seed at various levels (0%, 5%, and 15%) in barley-soybean-based concentrates offered to Morkaraman male lambs at approximately 8 months of age, on fattening performance, carcass, and meat quality characteristics. The lambs were divided into three treatment groups including R1 (concentrate without R. canina seed; n=12), R2 (concentrate with 5% R. canina seed; n=12), and R3 (concentrate with 15% R. canina seed; n=12) at the beginning of fattening period. The soybean meal was used as main protein source in treatment groups. All of the groups were fed a diet consisting of concentrate offered ad libitum and 300 g of grass hay per lamb per day during 60day fattening period. The effect of diet on daily weight gain was found statistically significant. The control group had higher daily weight gain than R3 groups with 15% of ground R. canina seed. The hot carcass and cold carcass weights and dressing percentage values were affected by diets, and R3 group fed concentrate with 15% R. canina seed had higher carcass weights and dressing percentages than R1 and R2 groups. Differences among the groups in terms of leg, rib, and hindshank weights were found highly significant. While R1 and R2 groups were not significantly different, R3 group was significantly higher to R1 and R2 groups in leg, rib, and hindshank weights. In addition, meat color parameters and pH values were not affected by diets in present study.

Research paper thumbnail of Effects of different raising systems on colour and quality characteristics of Turkish Pekin duck meats

South African Journal of Animal Science, 2008

The current trial was conducted to determine the influence of different raising systems on the me... more The current trial was conducted to determine the influence of different raising systems on the meat quality properties of male Turkish Pekin ducks. Ninety male ducklings were randomly allocated to three experimental groups: an animal-fish integrated farming group (IG), a non-animal-fish integrated farming group (NIG) and a poultry house group (PHG). All ducklings were fed a starter diet from weeks 2 to 6 and a finisher diet from weeks 6 to 10. Feed and water were offered ad libitum. At the end of the trial all ducks were slaughtered and the carcasses were stored at 3 °C for 24 hours, after which L*, a* and b* values of the carcass skins were measured. After standard dissection of carcasses, pectoralis muscles were obtained on which pH, colour (L*, a*, b*, C and H), total aerobic mesophilic, total aerobic psychrotrophic, lactic acid bacteria, Micrococcus/Staphylococcus, yeast-mould and Enterobacteriaceae counts were determined. The different raising systems of the ducks had significant effects on the pH, total aerobic mesophilic, Enterobacteriaceae, and L* and b* values of the pectoralis muscle. The lowest pH, total aerobic mesophilic and Enterobacteriaceae counts were found in the PHG group. The lowest L* values for the pectoralis muscle were found in the IG group while the highest a* value was recorded in the IG group. Significant differences in skin colour were observed between the experimental groups. For all production groups, all microbial counts were found to be within acceptable ranges. However, pH, total aerobic mesophilic and Enterobacteriaceae results were found to be lower in the PHG group than in the other groups. Different raising systems were thus found to affect the meat and skin colour of ducks, which may influence the preference of consumers.

Research paper thumbnail of Growth performance and carcass characteristics of Awassi, Morkaraman and Tushin lambs grazed on pasture and supported with concentrate

Small Ruminant Research, 2002

Growth and slaughter and carcass traits of Awassi (A), Morkaraman (M) and Tushin (T) lambs weaned... more Growth and slaughter and carcass traits of Awassi (A), Morkaraman (M) and Tushin (T) lambs weaned at 2.5 months of age were evaluated. The lambs were fed a concentrate mixture and allowed to graze for 70 days. M lambs showed the highest performance in daily weight gain and the amount of concentrate consumed in addition to grazing on pasture per unit body weight gain. The effects of breed and sex of lamb on daily weight gain on pasture were signi®cant and highly signi®cant, respectively. Male lambs were superior to female lambs with respect to daily weight gain. Hot carcass of M lambs was heavier than those of A and T lambs. M had higher dressing percentage and larger M. longissimus dorsi area than those of A and T lambs. The proportions of wholesale cuts such as loin, sirloin, rib and hindshank were affected by breed. T lambs showed better performance than M lambs in proportion of loin cuts. In addition, the proportion of sirloin and rib cuts for A lambs was found to be higher than that of M lambs. M lambs had signi®cantly higher proportion of hindshank than those of A and T lambs.

Research paper thumbnail of Effects of vitamin E supplementation on performance and meat quality traits of Morkaraman male lambs

Meat Science, 2003

This research was carried out to determine the effects of vitamin E supplementation on meat quali... more This research was carried out to determine the effects of vitamin E supplementation on meat quality traits of approximate 8 months of age Morkaraman male lambs. The lambs were divided into two groups-control (CG, n=7) and experimental (VG, n=6)-at the beginning of fattening period. The diet given to the CG and VG consisted of concentrate and grass hay. In addition, the VG received a supplement of 45 mg vitamin E per lamb in a day during a 75-day fattening period. At the end of the study, average daily weight gain and feed conversion efficiency values as to feed basis were found to be 208 g and 6.3 for CG and 223 g and 6.0 for VG groups, respectively. Vitamin E supplementation resulted in 8.8% improvement in feed conversion efficiency. In the same way, vitamin E supplementation resulted in 6.7% increase in daily weight gain. Slaughter and carcass characteristics of lambs were also determined, but fattening performance, slaughter and carcass characteristics were not significantly different between groups. The effects of vitamin E on meat characteristics, meat colour (L*, a* and b*), thiobarbituric acid reactive substances content (TBARS), drip loss and pH were determined using m. longissimus dorsi (LD) muscles obtained from CG and VG. Though the effect of vitamin E supplementation on most of the meat quality traits was not statistically significant (P> 0.05), L* and a* values in LD muscle from VG were preserved for a period of 12 days of maturation. In addition, a* (redness) tended to increase slightly. TBARS values in samples from CG were found to be higher than those of vitamin E treatment group. In this study, it was also concluded that drip loss was relatively preserved by vitamin E supplementation. In conclusion, vitamin E supplementation of Morkaraman male lambs at an inclusion rate over the amount of nutritional recommendations, significantly reduced lipid oxidation, drip loss and tended to maintain meat redness.

Research paper thumbnail of Effect of breed on fattening performance, slaughter and meat quality characteristics of Awassi and Morkaraman lambs

Livestock Science, 2009

The influence of breed on fattening performance, slaughter and meat quality traits was studied in... more The influence of breed on fattening performance, slaughter and meat quality traits was studied in Awassi and Morkaraman male lambs at approximately 8 months of age. All of the groups were fed a diet consisting of concentrate mixture offered ad libitum, and 300 g of grass hay per lamb per day during 60-day fattening period. Initial live weight, final live weight, daily weight gain and feed conversion efficiency (concentrate and hay consumption for 1 kg of live weight gain) were 39.63 kg, 55.08 kg, 0.258 kg and 6.37 for Awassi; 40.54 kg, 55.58 kg, 0.234 kg and 6.77 for Morkaraman, respectively. The effect of breed on fattening performance and slaughter traits except for LD area was not significant. In addition, meat colour parameters (L⁎ = lightness, a⁎ = redness, b⁎ = yellowness, H = hue angle and C = chroma), pH values, drip loss and sensory attributes were not affected by breed in present study. A significant muscle effect was observed for instrumental measurements of some meat quality characteristics as meat colour parameters (L⁎, a⁎ and C), collagen, drip loss, pH, moisture and protein content, WBS, and for some sensory attributes (tenderness, juiciness, acceptability and number of chewing). Results of this study indicate that fattening performance, slaughter and meat quality traits were similar between Awassi and Morkaraman male lambs.

Research paper thumbnail of The effects of diets containing different levels of common vetch (Vicia sativa) seed on fattening performance, carcass and meat quality characteristics of Awassi male lambs

Journal of the Science of Food and Agriculture, 2005

The livestock sector plays a significant economic role in developing countries such as Turkey and... more The livestock sector plays a significant economic role in developing countries such as Turkey and is essential for the food security of rural populations. However, inadequacy of animal feed resources is most often the limiting factor in the development of livestock production. Feed ...