Alireza Lotfi - Academia.edu (original) (raw)
Papers by Alireza Lotfi
Czech Journal of Animal Science, Aug 31, 2011
Ghrelin is a regulatory peptide in glucose homeostasis in animal species. Its effect in the avian... more Ghrelin is a regulatory peptide in glucose homeostasis in animal species. Its effect in the avian embryo is unclear. The aim of this study was to investigate the effects of in ovo ghrelin administration on serum glucose and insulin levels of hatched chicks. A total of 250 fertilized eggs were divided into 5 groups; group T1 as control (without injection), group T2 (in ovo injected with 50 ng/egg ghrelin on day 5), group T3 (in ovo injected with 100 ng/egg ghrelin on day 5), group T4 (in ovo injected with 50 ng/egg ghrelin on day 10) and group T5 (in ovo injected with 100 ng/egg ghrelin on day 10). After hatching, serum insulin and glucose concentrations were determined. Group T4 and T5 showed significantly higher serum insulin levels (0.43 and 0.60 ng/ml, respectively) compared with T1, T2 and T3 (0.09, 0.10, and 0.23 ng/ml, respectively) in hatched chicks. Glucose concentrations have not been affected by in ovo administered ghrelin in all injected groups. It seems that embryonic β-cells were stimulated to secrete a considerable level of insulin in response to in ovo ghrelin in the late embryonic life. The observed stability of glucose rate suggests the incidence of insulin resistance at hatching time or in newly hatched chicks from in ovo ghrelin administered eggs on day 10.
International Journal of Biosciences, 2012
The aim of this experiment was to evaluate the effects of supplemented semi-refined vegetable oil... more The aim of this experiment was to evaluate the effects of supplemented semi-refined vegetable oil (with or without vitamin E supplement) on egg characterizes. A factorial experiment (3×2) including 3 levels of semi-refined oil (2, 4 or 6%) and 2 levels of vitamin E (150 or 750 mg/kg diet) based on completely randomized design was performed with 212 laying hens (Hy-line W36) from 62w to 74w of age. Egg physical traits were estimated for eggs produced by layng hens fed experimental diets. Evaluated data during experimental period showed that utilization of semi-refined oil with vitamin E didn't have considerable effect on egg characterizes (egg shell weight, shell thickness and specific weight), with exception of haugh unit (p<0.05). Supplementation of 4 or 6% semi-refined oil caused highest haugh unit in produced eggs. Results obtained by supplemented 4% were more significant (haugh unit: 90.85). Supplementation of Vitamin E didn't has any considerable effect on egg characterizes; egg shell weight, shell thickness, specific weight, haugh unit. In overall, supplementation of semi-refined vegetable oil (with or without vitamin E supplement) didn't have any considerable effect on egg physical traits.
Veterinary Clinical Pathology The Quarterly Scientific Journal, Feb 20, 2010
Microwaves such as those emitted from electromagnetic fields of cell phones can penetrate live ti... more Microwaves such as those emitted from electromagnetic fields of cell phones can penetrate live tissues and results in changes of ion distribution in membranes and may interfere with metabolic reactions. Considering the increasing use of cell phones, in the present study the effects of 900 MHz electromagnetic fields of cell phones on body weight and blood glucose concentration of adult hamsters were investigated. Seventy two female hamsters were randomly allocated into three experimental groups. Group 1 served as the control group without the effect of electromagnetic field. Group 2 was exposed to electromagnetic field emitted by cell phones for 10 days (short term) and group 3 for 50 day (long term). In the latter groups, the exposure was 1 hour per day. At the end of the experimental period, the animals were weighed and blood glucose concentrations were determined by obtaining blood samples from 8 randomly selected hamsters in each group. The blood glucose level was significantly higher in long-term exposed group in comparison with the control and short-term exposed groups (175, 11.6 and 107 mg/dl, respectively) (p<0.01). Also, long-term exposed group had more weight gain compared with the control and short-term exposed groups (114.5, 11.6 and 101 gr, respectively) (p<0.01). In this study, long term (50 day period) exposure to electromagnetic fields emitted by cell phones resulted in significant increase in body weight and blood glucose levels of hamsters. Therefore, in long term, exposure to these fields could increase blood glucose levels and body weight of rodents.
Journal of the Hellenic Veterinary Medical Society, 2020
The aim of present study was to investigate the short-term and long-term effect of the peripheral... more The aim of present study was to investigate the short-term and long-term effect of the peripheral administration of ghrelin on the growth performance (feed intake, weight gain, and feed conversion ratio), carcass quality, and selected serum biochemical (glucose, total cholesterol, triglyceride, and total protein) and hormonal (T3, T4, and corticostrone) indices in broiler chickens. 240 one-day-old broiler chickens were selected, and allocated into three treatment groups (control and two experimental groups). On day-21 of the rearing period, ghrelin was peripherally administrated to three experimental groups. The control group contained birds without any administration of peptide or solution, groups G50 and G100; included birds with Ip-injection of 50 and 100 (ng/100g BW) ghrelin peptide, respectively. The peripheral administration of exogenous ghrelin did not affect feed intake, body weight gain (BWG), feed conversion ratio (FCR) and carcass characteristics in broiler chickens. In s...
Uludağ Üniversitesi, 2012
The aim of present study was to determine the effect of intermitted exposure to 50 Hz, 0.5 mT ele... more The aim of present study was to determine the effect of intermitted exposure to 50 Hz, 0.5 mT electromagnetic fields (EMF) during different periods of incubation on serum biochemical parameters (glucose, total cholesterol, triglyceride, uric acid and iron concentration) in newly-hatched chicks. Experimental groups were: group 1 (control), with normal incubation process and without any exposing to EMF; group 2 included eggs exposed to 50Hz, 0.5 mT EMF, 2 h daily for 0-7 day of incubation; group 3 included eggs exposed for 2 h daily from day-8 to-14 of incubation; group 4; included eggs exposed from day-15 to-21 of incubation, and group 5 included eggs exposed from day-1 to-21 of incubation (whole incubation period). Incubation condition with exception to EMF exposing, was similar for all groups. At EMF exposure time, eggs were transferred to EMF emitter set and after exposure time, eggs were transferred to their rows (setter). Blood samples obtained from newly hatched chicks were analyzed. exposure to EMF: 50 Hz, 0.5 mT during embryonic life didn't has considerable effect on total cholesterol, triglyceride, uric acid and Fe of newly hatched chicks. In present study, the only measure with significant changes was glucose concentration that had difference between group4 or 5 (exposed at 3 rd or whole incubation period) and control group (P<0.05). It was concluded that exposure to EMF: 50 Hz, 0.5 mT during incubation with exception to glucose declining at late embryonic life (exposure at 3 rd week), didn't has any significant effect on plasma total cholesterol, triglyceride, iron or uric acid in hatched chicks.
![Research paper thumbnail of Effects of peripheral administration of ghrelin antagonist [D-Lys<sup>3</sup>]-GHRP-6 on growth performance and blood biochemical indices in broiler chickens](https://attachments.academia-assets.com/109729893/thumbnails/1.jpg)
](Archives Animal Breeding, 2016
In the present study, possible effects of peripheral administration of ghrelin antagonist [D-Lys ... more In the present study, possible effects of peripheral administration of ghrelin antagonist [D-Lys 3 ]-GHRP-6 on chicken performance, thyroid hormones level and serum biochemical parameters were investigated. Broiler chicks divided into five experimental groups were reared up to day 42. On day 21, a treatment was assigned to the five groups: group 1 (control), chickens without any administration of peptide or solution; group 2 (G50), chickens with intraperitoneal (IP) injection of 50 ng per 100 g body weight (BW) of D-Lys 3 peptide on day 21; group 3 (G100), chickens with IP injection of 100 ng per 100 g BW of D-Lys 3 peptide on day 21; group 4 (G150), chickens with IP injection of 150 ng per 100 g BW of D-Lys 3 peptide on day 21; and group 5 (G200), chickens with IP injection of 200 ng per 100 g BW of D-Lys 3 peptide on day 21. On days 21 (post-injection) and 42 (post-rearing), blood samples were obtained from the animals for laboratory analyses. Experimental groups administered the GHS-R antagonist showed less feed intake-i.e., administration of greater doses led to less feed intake (P < 0.01). Daily weight gains within groups G150 and G200 decreased (P < 0.01) in comparison with the control. The feed conversion ratio (FCR) did not differ among the groups. There was a significant difference between control and experimental groups for glucose, total cholesterol and phosphorus levels (P < 0.01) in postinjection samples. In post-injection and post-rearing blood samples, the thyroid hormone (T 3 and T 4) in 6 h increased in treated groups in comparison with the control (P < 0.01). The infusion of ghrelin antagonist [D-Lys 3 ]-GHRP-6 reduces feed intake and body weight. With regard to increase in T 4 level, it can be inferred that [D-Lys 3 ]-GHRP-6 may increase metabolic rate, lipolysis and weight loss, which is similar to results obtained in mammalian species.
Ankara Üniversitesi Veteriner Fakültesi Dergisi, 2018
The aim of present study was to investigate the effects of peripheral administration of ghrelin o... more The aim of present study was to investigate the effects of peripheral administration of ghrelin on performance and some serum parameters of Japanese quail. One hundred twenty 21 day-old male Japanese quails were divided into three groups for a 35 days experimental rearing period. The control group (G0) included no injection as an intact, the second group (treatment 1/G50) received 50 ng ghrelin/kg body weight (BW), and the third group (treatment 2/G100) was given 100 ng ghrelin/kg BW. Ghrelin was administrated (I. P. administration) at the onset of the experimental rearing period on 21-day old birds. Blood samples were taken at two different times: 1) 12 hrs after the injection, and; 2) at the end of the rearing period (on day 35). The effects of ghrelin were evaluated during experimental rearing periods. There were no changes in feed intake and body weight gain (BWG) following ghrelin administration at different dosages (50 or 100 ng/ kg BW), whereas a minor decrease in feed intake was observed in G100 group. Feed conversion ratio (FCR) is significantly decreased in G50 and G100, compared to control (P<0.05). Thyroxin (T4) was increased in ghrelin-administered groups in both samples (short/long-term). In conclusion, ghrelin administration in Japanese quails may improve FCR, and stimulate secretion of thyroid hormones, without severe effects on feed intake. However, it did not have considerable effects on carcass characteristics and serum biochemical measures in short and long-terms in Japanese quails.
Download Forage species availability, preference and grazing behaviour of Muturu and Zebu cattle ... more Download Forage species availability, preference and grazing behaviour of Muturu and Zebu cattle in Asaba, Delta State, Nigeria Muturu Zebu Original Research, C39 pii: S222877011300039-3 Udeh I, Isikwenu JO and Obika GC. Online J. Anim. Feed Res., 3(5): 197-201, 2013. ABSTRACT: The objectives of this study were to identify the forage species available, species preference and to compare the grazing behaviour of Muturu and Zebu cattle under semi intensive system of management in Delta State University, Asaba Campus, Asaba Nigeria. Eleven cattle made up of one bull and ten cows each of Muturu and zebu were used for the study. There were five grazing areas. The total number of plant species, their population density and the most significant forage species preferred by the cattle were noted by the use of the quadrat method. Seventeen forage species were classified comprising twelve grasses, two legumes, two shrubs and one tree, which formed most of their food. Among the forage species id...
Kafkas Universitesi Veteriner Fakultesi Dergisi, 2021
Newcastle Disease (ND) was ranked as a List A and trade limited disease by the World Health Organ... more Newcastle Disease (ND) was ranked as a List A and trade limited disease by the World Health Organization. It is one of the deadly diseases of domestic and zoo birds especially pheasants that are highly susceptible species to Newcastle disease virus (NDV). This study was designed to determine the humoral immune response (HIR) of thermostable NDV vaccine strain I-2 in same age pheasants. For this purpose, forty-five pheasants of the same age were separated and placed in cages. Thermostable NDV I-2 vaccine was mixed with feed and administered through oral route to the same age pheasants. HIR was detected using haemagglutination inhibition test (HI) and enzyme linked immunosorbent assay (ELISA) on 0, 7 th , 14 th , 21 th and 28 th days post-vaccination (DPV). Optimum geometric mean anti-NDV-ELISA (2380) and anti-NDV-HI (Log27.5) antibodies titers were identified on 14 th DPV. It was concluded that the oral administration of NDV I-2 strain is able to elicit a protective immune response in pheasants. Moreover, the use of this novel vaccine technique at the same age of pheasants overwhelms the attempt to catch these birds for single vaccination.
European Journal of Experimental Biology, 2011
The aim of present study was to investigation on influence of supplemented sunflower oil (SFO) in... more The aim of present study was to investigation on influence of supplemented sunflower oil (SFO) in vitro gas production of mixed ration (concentrated feed + forage) for ruminants. The SFO in the levels of 0, 2.5 or 5% of ration was added to experimental mixed ration via spraying to milled ration. Three native bulls were fistulated and fed with experimental ration twice daily for 15 days and ruminal fluid was collected. Gas production was measured as the volume of gas in the calibrated syringes and was recorded before incubation 2, 4, 6, 8, 12, 24, 48, 72 and 96 hours after incubation. Total gas values were corrected for blank incubation which contained only rumen fluid. For determination of metabolizable energy (ME), net energy for lactation (NEL) and digestibility of organic matter (DOM) in in vitro conditions, an equation was applied for gas production volume from a milligram of sample and turned it for 200 mg sample to 24h. With inclusion of 5% SFO, significant decreases (p in vit...
Journal of Biological and Environmental Sciences, Dec 1, 2012
The aim of this experimental work was to evaluation of efficiency of dietary inclusion of SCY as ... more The aim of this experimental work was to evaluation of efficiency of dietary inclusion of SCY as replacement for fish meal or poultry meat byproduct in broiler diet. A completely randomized design with five treatments, each with three replication of twelve chicks each was conducted from 7-49 day of age to investigate the effects of Saccharomyces cerevisiae yeast (SCY) as replacement with fish meal or poultry byproduct protein on broiler performance. Treatments include: 1 control group 2 and 3: yeast in replace with 40 and 60 percent of fish meal protein 4and 5: yeast in replace with 40 and 60 percent of poultry by-product protein. Inclusion of SCY as fish meal replacement in two levels (treatment 2 or 3) didn't have any negative effect on feed intake, weight gain or feed conversion ratio. Also dietary inclusion of SCY as replacement of poultry meat by-product (40% of poultry meat by-product proportion in diet) didn't have any negative effect on performance. Only inclusion of 60% SCY as replacement for poultry meat byproduct had significant negative effect on performance includes feed intake, weight gain and feed conversion ratio (P<0.05).The results of this study indicated the use of SCY with 60 percent replacement of fish meal protein and poultry by-product protein can improve meat quality and broilers performance.
Revista Brasileira de Nutrição Esportiva, 2019
Objective: The present study investigates the effect of intraperitoneally (IP)-administrated obes... more Objective: The present study investigates the effect of intraperitoneally (IP)-administrated obestatin and short-term treadmill exercise on serum malondialdehyde (MDA) and lipid profile in rat model. Materials and Methods: Forty-five rats weighing 100 ± 5g were selected and divided into five experimental groups; Group-1/control was normally kept and did not receive obestatin-included solution or exercise. Group-2 (placebo) was treated with basal solution (50 ml distilled water). Group-3 was referred to as obestatin-group which was subjected to injection during the experiment with obestatin solution (10 μg obestatin/ rat). Group-4 was known as treadmill-group which was subjected to exercise protocol (15 days treadmill training), and group-5, known as obestatin and treadmill group (OT), was subjected to injection with obestatin and exercise protocol. The exercise-groups were trained for 3-weeks. Results: the treadmill-group was decreased total cholesterol (TC) concentration (67.67 mg/...
Research Journal of Applied Sciences, Engineering and Technology, 2013
Due to the high importance of engineering and technical fields from the point view of students at... more Due to the high importance of engineering and technical fields from the point view of students attendance and application, in this study we have tried to analyze the relation between the average of diploma with the total average of associate period in fields of electronics, electro techniques, computer and mechanics, In the present study the averages of diploma and total averages of associate degree were collected through the comprehensive system of I.A.U (SIDA). The grades in every field (the total average of high school and associate degree) were randomly classified under 3 categories. To compare the mean, we wed t-test. The results showed that there is not a significant different between the average of diploma and that of associate degree. As a result, engineering after enter the college when we compare it with high school.
International Journal of Zoological Research, 2008
Asian Journal of Animal and Veterinary Advances, 2012
American Journal of Animal and Veterinary Sciences, 2013
Hydatid disease is a re-emerging disease that infects human and animals worldwide. Cystic Echinoc... more Hydatid disease is a re-emerging disease that infects human and animals worldwide. Cystic Echinococcosis (CE) is the most common form of the disease. In Egypt, CE is an endemic disease and several reports have indicated an increasing prevalence rate of the CE infection in animals and humans in the last few years. The aim of the current study is to determine the prevalence rate and other epidemiological factors in the infecting of ruminants with CE in different locations in Upper Egypt. The data gathered shows that of 4,498 animals examined, 89 (1.97%) had the hydatid cyst. Sheep were the most affected animal species (14.1%), then goats (13%), camels (5%) and cattle (0.068%), while buffaloes were free from infection. A higher percentage were affected in the liver (39.3%) than in the lungs (32.5%) and other viscera (2.2%), while 25.8% were affected in both the liver and the lungs The general fertility rate of cysts examined was 27.71%; cysts of camel origin were the most fertile (66.6%), followed by those of goats (29.41%) and sheep (15.51%); that of cattle was 0%. The current study provides current data about the status of CE infection in ruminants in Upper Egypt that will aid further studies and enable more precise planning for effective control strategies.
Download Effect of climate change on dairy production in Botswana and its suitable mitigation str... more Download Effect of climate change on dairy production in Botswana and its suitable mitigation strategies
Czech Journal of Animal Science, Aug 31, 2011
Ghrelin is a regulatory peptide in glucose homeostasis in animal species. Its effect in the avian... more Ghrelin is a regulatory peptide in glucose homeostasis in animal species. Its effect in the avian embryo is unclear. The aim of this study was to investigate the effects of in ovo ghrelin administration on serum glucose and insulin levels of hatched chicks. A total of 250 fertilized eggs were divided into 5 groups; group T1 as control (without injection), group T2 (in ovo injected with 50 ng/egg ghrelin on day 5), group T3 (in ovo injected with 100 ng/egg ghrelin on day 5), group T4 (in ovo injected with 50 ng/egg ghrelin on day 10) and group T5 (in ovo injected with 100 ng/egg ghrelin on day 10). After hatching, serum insulin and glucose concentrations were determined. Group T4 and T5 showed significantly higher serum insulin levels (0.43 and 0.60 ng/ml, respectively) compared with T1, T2 and T3 (0.09, 0.10, and 0.23 ng/ml, respectively) in hatched chicks. Glucose concentrations have not been affected by in ovo administered ghrelin in all injected groups. It seems that embryonic β-cells were stimulated to secrete a considerable level of insulin in response to in ovo ghrelin in the late embryonic life. The observed stability of glucose rate suggests the incidence of insulin resistance at hatching time or in newly hatched chicks from in ovo ghrelin administered eggs on day 10.
International Journal of Biosciences, 2012
The aim of this experiment was to evaluate the effects of supplemented semi-refined vegetable oil... more The aim of this experiment was to evaluate the effects of supplemented semi-refined vegetable oil (with or without vitamin E supplement) on egg characterizes. A factorial experiment (3×2) including 3 levels of semi-refined oil (2, 4 or 6%) and 2 levels of vitamin E (150 or 750 mg/kg diet) based on completely randomized design was performed with 212 laying hens (Hy-line W36) from 62w to 74w of age. Egg physical traits were estimated for eggs produced by layng hens fed experimental diets. Evaluated data during experimental period showed that utilization of semi-refined oil with vitamin E didn't have considerable effect on egg characterizes (egg shell weight, shell thickness and specific weight), with exception of haugh unit (p<0.05). Supplementation of 4 or 6% semi-refined oil caused highest haugh unit in produced eggs. Results obtained by supplemented 4% were more significant (haugh unit: 90.85). Supplementation of Vitamin E didn't has any considerable effect on egg characterizes; egg shell weight, shell thickness, specific weight, haugh unit. In overall, supplementation of semi-refined vegetable oil (with or without vitamin E supplement) didn't have any considerable effect on egg physical traits.
Veterinary Clinical Pathology The Quarterly Scientific Journal, Feb 20, 2010
Microwaves such as those emitted from electromagnetic fields of cell phones can penetrate live ti... more Microwaves such as those emitted from electromagnetic fields of cell phones can penetrate live tissues and results in changes of ion distribution in membranes and may interfere with metabolic reactions. Considering the increasing use of cell phones, in the present study the effects of 900 MHz electromagnetic fields of cell phones on body weight and blood glucose concentration of adult hamsters were investigated. Seventy two female hamsters were randomly allocated into three experimental groups. Group 1 served as the control group without the effect of electromagnetic field. Group 2 was exposed to electromagnetic field emitted by cell phones for 10 days (short term) and group 3 for 50 day (long term). In the latter groups, the exposure was 1 hour per day. At the end of the experimental period, the animals were weighed and blood glucose concentrations were determined by obtaining blood samples from 8 randomly selected hamsters in each group. The blood glucose level was significantly higher in long-term exposed group in comparison with the control and short-term exposed groups (175, 11.6 and 107 mg/dl, respectively) (p<0.01). Also, long-term exposed group had more weight gain compared with the control and short-term exposed groups (114.5, 11.6 and 101 gr, respectively) (p<0.01). In this study, long term (50 day period) exposure to electromagnetic fields emitted by cell phones resulted in significant increase in body weight and blood glucose levels of hamsters. Therefore, in long term, exposure to these fields could increase blood glucose levels and body weight of rodents.
Journal of the Hellenic Veterinary Medical Society, 2020
The aim of present study was to investigate the short-term and long-term effect of the peripheral... more The aim of present study was to investigate the short-term and long-term effect of the peripheral administration of ghrelin on the growth performance (feed intake, weight gain, and feed conversion ratio), carcass quality, and selected serum biochemical (glucose, total cholesterol, triglyceride, and total protein) and hormonal (T3, T4, and corticostrone) indices in broiler chickens. 240 one-day-old broiler chickens were selected, and allocated into three treatment groups (control and two experimental groups). On day-21 of the rearing period, ghrelin was peripherally administrated to three experimental groups. The control group contained birds without any administration of peptide or solution, groups G50 and G100; included birds with Ip-injection of 50 and 100 (ng/100g BW) ghrelin peptide, respectively. The peripheral administration of exogenous ghrelin did not affect feed intake, body weight gain (BWG), feed conversion ratio (FCR) and carcass characteristics in broiler chickens. In s...
Uludağ Üniversitesi, 2012
The aim of present study was to determine the effect of intermitted exposure to 50 Hz, 0.5 mT ele... more The aim of present study was to determine the effect of intermitted exposure to 50 Hz, 0.5 mT electromagnetic fields (EMF) during different periods of incubation on serum biochemical parameters (glucose, total cholesterol, triglyceride, uric acid and iron concentration) in newly-hatched chicks. Experimental groups were: group 1 (control), with normal incubation process and without any exposing to EMF; group 2 included eggs exposed to 50Hz, 0.5 mT EMF, 2 h daily for 0-7 day of incubation; group 3 included eggs exposed for 2 h daily from day-8 to-14 of incubation; group 4; included eggs exposed from day-15 to-21 of incubation, and group 5 included eggs exposed from day-1 to-21 of incubation (whole incubation period). Incubation condition with exception to EMF exposing, was similar for all groups. At EMF exposure time, eggs were transferred to EMF emitter set and after exposure time, eggs were transferred to their rows (setter). Blood samples obtained from newly hatched chicks were analyzed. exposure to EMF: 50 Hz, 0.5 mT during embryonic life didn't has considerable effect on total cholesterol, triglyceride, uric acid and Fe of newly hatched chicks. In present study, the only measure with significant changes was glucose concentration that had difference between group4 or 5 (exposed at 3 rd or whole incubation period) and control group (P<0.05). It was concluded that exposure to EMF: 50 Hz, 0.5 mT during incubation with exception to glucose declining at late embryonic life (exposure at 3 rd week), didn't has any significant effect on plasma total cholesterol, triglyceride, iron or uric acid in hatched chicks.
Archives Animal Breeding, 2016
In the present study, possible effects of peripheral administration of ghrelin antagonist [D-Lys ... more In the present study, possible effects of peripheral administration of ghrelin antagonist [D-Lys 3 ]-GHRP-6 on chicken performance, thyroid hormones level and serum biochemical parameters were investigated. Broiler chicks divided into five experimental groups were reared up to day 42. On day 21, a treatment was assigned to the five groups: group 1 (control), chickens without any administration of peptide or solution; group 2 (G50), chickens with intraperitoneal (IP) injection of 50 ng per 100 g body weight (BW) of D-Lys 3 peptide on day 21; group 3 (G100), chickens with IP injection of 100 ng per 100 g BW of D-Lys 3 peptide on day 21; group 4 (G150), chickens with IP injection of 150 ng per 100 g BW of D-Lys 3 peptide on day 21; and group 5 (G200), chickens with IP injection of 200 ng per 100 g BW of D-Lys 3 peptide on day 21. On days 21 (post-injection) and 42 (post-rearing), blood samples were obtained from the animals for laboratory analyses. Experimental groups administered the GHS-R antagonist showed less feed intake-i.e., administration of greater doses led to less feed intake (P < 0.01). Daily weight gains within groups G150 and G200 decreased (P < 0.01) in comparison with the control. The feed conversion ratio (FCR) did not differ among the groups. There was a significant difference between control and experimental groups for glucose, total cholesterol and phosphorus levels (P < 0.01) in postinjection samples. In post-injection and post-rearing blood samples, the thyroid hormone (T 3 and T 4) in 6 h increased in treated groups in comparison with the control (P < 0.01). The infusion of ghrelin antagonist [D-Lys 3 ]-GHRP-6 reduces feed intake and body weight. With regard to increase in T 4 level, it can be inferred that [D-Lys 3 ]-GHRP-6 may increase metabolic rate, lipolysis and weight loss, which is similar to results obtained in mammalian species.
Ankara Üniversitesi Veteriner Fakültesi Dergisi, 2018
The aim of present study was to investigate the effects of peripheral administration of ghrelin o... more The aim of present study was to investigate the effects of peripheral administration of ghrelin on performance and some serum parameters of Japanese quail. One hundred twenty 21 day-old male Japanese quails were divided into three groups for a 35 days experimental rearing period. The control group (G0) included no injection as an intact, the second group (treatment 1/G50) received 50 ng ghrelin/kg body weight (BW), and the third group (treatment 2/G100) was given 100 ng ghrelin/kg BW. Ghrelin was administrated (I. P. administration) at the onset of the experimental rearing period on 21-day old birds. Blood samples were taken at two different times: 1) 12 hrs after the injection, and; 2) at the end of the rearing period (on day 35). The effects of ghrelin were evaluated during experimental rearing periods. There were no changes in feed intake and body weight gain (BWG) following ghrelin administration at different dosages (50 or 100 ng/ kg BW), whereas a minor decrease in feed intake was observed in G100 group. Feed conversion ratio (FCR) is significantly decreased in G50 and G100, compared to control (P<0.05). Thyroxin (T4) was increased in ghrelin-administered groups in both samples (short/long-term). In conclusion, ghrelin administration in Japanese quails may improve FCR, and stimulate secretion of thyroid hormones, without severe effects on feed intake. However, it did not have considerable effects on carcass characteristics and serum biochemical measures in short and long-terms in Japanese quails.
Download Forage species availability, preference and grazing behaviour of Muturu and Zebu cattle ... more Download Forage species availability, preference and grazing behaviour of Muturu and Zebu cattle in Asaba, Delta State, Nigeria Muturu Zebu Original Research, C39 pii: S222877011300039-3 Udeh I, Isikwenu JO and Obika GC. Online J. Anim. Feed Res., 3(5): 197-201, 2013. ABSTRACT: The objectives of this study were to identify the forage species available, species preference and to compare the grazing behaviour of Muturu and Zebu cattle under semi intensive system of management in Delta State University, Asaba Campus, Asaba Nigeria. Eleven cattle made up of one bull and ten cows each of Muturu and zebu were used for the study. There were five grazing areas. The total number of plant species, their population density and the most significant forage species preferred by the cattle were noted by the use of the quadrat method. Seventeen forage species were classified comprising twelve grasses, two legumes, two shrubs and one tree, which formed most of their food. Among the forage species id...
Kafkas Universitesi Veteriner Fakultesi Dergisi, 2021
Newcastle Disease (ND) was ranked as a List A and trade limited disease by the World Health Organ... more Newcastle Disease (ND) was ranked as a List A and trade limited disease by the World Health Organization. It is one of the deadly diseases of domestic and zoo birds especially pheasants that are highly susceptible species to Newcastle disease virus (NDV). This study was designed to determine the humoral immune response (HIR) of thermostable NDV vaccine strain I-2 in same age pheasants. For this purpose, forty-five pheasants of the same age were separated and placed in cages. Thermostable NDV I-2 vaccine was mixed with feed and administered through oral route to the same age pheasants. HIR was detected using haemagglutination inhibition test (HI) and enzyme linked immunosorbent assay (ELISA) on 0, 7 th , 14 th , 21 th and 28 th days post-vaccination (DPV). Optimum geometric mean anti-NDV-ELISA (2380) and anti-NDV-HI (Log27.5) antibodies titers were identified on 14 th DPV. It was concluded that the oral administration of NDV I-2 strain is able to elicit a protective immune response in pheasants. Moreover, the use of this novel vaccine technique at the same age of pheasants overwhelms the attempt to catch these birds for single vaccination.
European Journal of Experimental Biology, 2011
The aim of present study was to investigation on influence of supplemented sunflower oil (SFO) in... more The aim of present study was to investigation on influence of supplemented sunflower oil (SFO) in vitro gas production of mixed ration (concentrated feed + forage) for ruminants. The SFO in the levels of 0, 2.5 or 5% of ration was added to experimental mixed ration via spraying to milled ration. Three native bulls were fistulated and fed with experimental ration twice daily for 15 days and ruminal fluid was collected. Gas production was measured as the volume of gas in the calibrated syringes and was recorded before incubation 2, 4, 6, 8, 12, 24, 48, 72 and 96 hours after incubation. Total gas values were corrected for blank incubation which contained only rumen fluid. For determination of metabolizable energy (ME), net energy for lactation (NEL) and digestibility of organic matter (DOM) in in vitro conditions, an equation was applied for gas production volume from a milligram of sample and turned it for 200 mg sample to 24h. With inclusion of 5% SFO, significant decreases (p in vit...
Journal of Biological and Environmental Sciences, Dec 1, 2012
The aim of this experimental work was to evaluation of efficiency of dietary inclusion of SCY as ... more The aim of this experimental work was to evaluation of efficiency of dietary inclusion of SCY as replacement for fish meal or poultry meat byproduct in broiler diet. A completely randomized design with five treatments, each with three replication of twelve chicks each was conducted from 7-49 day of age to investigate the effects of Saccharomyces cerevisiae yeast (SCY) as replacement with fish meal or poultry byproduct protein on broiler performance. Treatments include: 1 control group 2 and 3: yeast in replace with 40 and 60 percent of fish meal protein 4and 5: yeast in replace with 40 and 60 percent of poultry by-product protein. Inclusion of SCY as fish meal replacement in two levels (treatment 2 or 3) didn't have any negative effect on feed intake, weight gain or feed conversion ratio. Also dietary inclusion of SCY as replacement of poultry meat by-product (40% of poultry meat by-product proportion in diet) didn't have any negative effect on performance. Only inclusion of 60% SCY as replacement for poultry meat byproduct had significant negative effect on performance includes feed intake, weight gain and feed conversion ratio (P<0.05).The results of this study indicated the use of SCY with 60 percent replacement of fish meal protein and poultry by-product protein can improve meat quality and broilers performance.
Revista Brasileira de Nutrição Esportiva, 2019
Objective: The present study investigates the effect of intraperitoneally (IP)-administrated obes... more Objective: The present study investigates the effect of intraperitoneally (IP)-administrated obestatin and short-term treadmill exercise on serum malondialdehyde (MDA) and lipid profile in rat model. Materials and Methods: Forty-five rats weighing 100 ± 5g were selected and divided into five experimental groups; Group-1/control was normally kept and did not receive obestatin-included solution or exercise. Group-2 (placebo) was treated with basal solution (50 ml distilled water). Group-3 was referred to as obestatin-group which was subjected to injection during the experiment with obestatin solution (10 μg obestatin/ rat). Group-4 was known as treadmill-group which was subjected to exercise protocol (15 days treadmill training), and group-5, known as obestatin and treadmill group (OT), was subjected to injection with obestatin and exercise protocol. The exercise-groups were trained for 3-weeks. Results: the treadmill-group was decreased total cholesterol (TC) concentration (67.67 mg/...
Research Journal of Applied Sciences, Engineering and Technology, 2013
Due to the high importance of engineering and technical fields from the point view of students at... more Due to the high importance of engineering and technical fields from the point view of students attendance and application, in this study we have tried to analyze the relation between the average of diploma with the total average of associate period in fields of electronics, electro techniques, computer and mechanics, In the present study the averages of diploma and total averages of associate degree were collected through the comprehensive system of I.A.U (SIDA). The grades in every field (the total average of high school and associate degree) were randomly classified under 3 categories. To compare the mean, we wed t-test. The results showed that there is not a significant different between the average of diploma and that of associate degree. As a result, engineering after enter the college when we compare it with high school.
International Journal of Zoological Research, 2008
Asian Journal of Animal and Veterinary Advances, 2012
American Journal of Animal and Veterinary Sciences, 2013
Hydatid disease is a re-emerging disease that infects human and animals worldwide. Cystic Echinoc... more Hydatid disease is a re-emerging disease that infects human and animals worldwide. Cystic Echinococcosis (CE) is the most common form of the disease. In Egypt, CE is an endemic disease and several reports have indicated an increasing prevalence rate of the CE infection in animals and humans in the last few years. The aim of the current study is to determine the prevalence rate and other epidemiological factors in the infecting of ruminants with CE in different locations in Upper Egypt. The data gathered shows that of 4,498 animals examined, 89 (1.97%) had the hydatid cyst. Sheep were the most affected animal species (14.1%), then goats (13%), camels (5%) and cattle (0.068%), while buffaloes were free from infection. A higher percentage were affected in the liver (39.3%) than in the lungs (32.5%) and other viscera (2.2%), while 25.8% were affected in both the liver and the lungs The general fertility rate of cysts examined was 27.71%; cysts of camel origin were the most fertile (66.6%), followed by those of goats (29.41%) and sheep (15.51%); that of cattle was 0%. The current study provides current data about the status of CE infection in ruminants in Upper Egypt that will aid further studies and enable more precise planning for effective control strategies.
Download Effect of climate change on dairy production in Botswana and its suitable mitigation str... more Download Effect of climate change on dairy production in Botswana and its suitable mitigation strategies