Cooked broiler meat quality affected by different Mediterranean medicinal plants in the diet (original) (raw)
Related papers
Ciência Animal Brasileira, 2018
This study evaluated the functional effects of two chemotypes of oregano essential oil (OEO): Lippia Origanoides (LO) and a comercial product Synergy Essence (SE). Broilers were randomly assigned to one of eight dietary treatments: 1) Basal diet (BD); 2) BD+ antibiotic growth promoters (AGP) (bacitracin 50g/ton); 3) BD+LO125 (125g/ton); 4) BD+LO250 (250g/ton); 5) BD+LO500 (500g/ton); 6) BD+SE125 (125g/ton); 7) BD+SE250 (250g/ton); 8) BD+SE500 (500g/ton). At the time of slaughter (42 d), five birds per treatment were slaughtered. A portion of the breast was minced and stored at -4 ºC for 3, 6, and 9 days. Lipid peroxidation was determined by measuring of malondialdehyde (MDA), data were analyzed as a completely randomized design with a factorial arrangement of treatments (8x4). Broilers fed SE250 had greater average daily gain (ADG) compared to broilers fed BD (P<0.05). Broilers fed LO500 had greater (P<0.05) organic matter digestibility than the ones fed BD. As days of storage...
Antioxidative effect of oregano supplemented to broilers on oxidative stability of poultry meat
Slov Vet Res Ljubljana …, 2008
Effect of oil extract of oregano supplemented in diet, on growth and oxidative stability of poultry meat was studied. Broiler chickens fed with addition of oregano achieved higher weight (2563 ± 140 g) in comparison with control group (2462 ± 195 g). Oxidative processes were investigated as changes of malondialdehyde content in breast and thigh meat after 0, 3, 6, and 12 months of storage at-21 °C. Partition of defrost samples was stored at chilling conditions (4 °C) during 12 hours, ground and thermally treated at 80 °C during 15 minutes, to observe antioxidative effect of added oregano oil in poultry meat after thermal treatment. Results showed that oregano essential oil was more effective in delaying lipid oxidation compared to the control diet at all time points. Thigh meat was more susceptible to lipid oxidation compared to breast meat (P < 0.05). Same effects of oregano extract were observed in meat after warm heating (P < 0.05).
Italian Journal of Animal Science
A 6-week experiment was conducted to evaluate the effects of dietary oregano powder (OP) supplementation on the growth performance, antioxidant status and meat quality of broiler chicks. A total of 180 one day-old Arbour Acres broilers were randomly divided into 3 treatments with 6 replicates and 10 chicks per replicate. The chicks were fed with basal diet without (CTR), or with 20 mg/kg of virginiamycin (ATB), or with 150 mg/kg of OP. At 21 and 42 days of age, two birds from each cage were selected for sampling. Compared to the CTR group, the OP supplementation increased average daily gain and average daily feed intake during the grower period (p ¼ .047 and .03, respectively) and the whole period (p ¼ .04 and .02, respectively). The supplementation of ATB and OP did not affect the immune organ index of chicks. In addition, dietary OP reduced malondialdehyde content and increased total antioxidant activity (T-AOC) in the serum of chicks at 21 (p < .01) and 42 (p < .01) days of age, and chicks fed OP had higher T-AOC than the ATB chicks at 21 days of age (p < .01). However, no dietary effect was observed on carcase yield, cooking loss, dripping loss, shear force, pH value and meat colour. The results of the present study indicate that dietary OP supplementation could positively improve the growth and systemic antioxidative defence property of broiler chicks, which had potential to act as a growth promoter comparable to antibiotic in broiler chicks.
The objective of this study was to investigate the effect of different levels of oregano essential oil on important meat quality parameters, including oxidative storage stability, of ground chicken meat. Five different treatments including 1) control (none added), 2) 100 ppm oregano essential oil, 3) 300 oregano essential oil, 4) 400 ppm oregano essential oil, and 5) 5 ppm butylatedhydroxyanisole (BHA) were added to ground boneless, skinless breast meat and used for both raw and cooked meat studies. For raw meat study, samples were individually packaged in oxygen-permeable bags and stored at 4 ℃ cooler for up to 7 days. For cooked meat study, the raw meat samples were packaged in oxygen impermeable vacuum bags and then cooked in-bag to the internal temperature of 75 °C. After cooling to room temperature, the cooked meat was transferred to a new oxygen-permeable bag and stored at 4 o C for up to 7 days. Both raw and cooked meats were analyzed for lipid and protein oxidation, color at 0, 3, and 7 days of storage. Volatiles profile of cooked meat was reported during storage time. Oregano essential oil treatments significantly reduced (p < 0.05) lipid oxidation, protein oxidation, and improved color stability of raw meat. However, oregano oil at 400 ppm showed the highest effect for all these parameters. No significant difference (P > 0.05) was seen on the a*-value of meat during storage. Cooked meat showed similar results to raw meat when oregano oil was added. Hexanal was the major aldehyde which decreased significantly (P < 0.05) by oregano oil treatment in cooked meat. The significant differences in the aldehydes formation among the treatments were clearer in cooked meat than in raw meat. Overall, oregano essential oil at level between 100-300 ppm could be a good meat preservative that can replace the synthetic antioxidant, BHA.
Revista Brasileira de Zootecnia, 2018
The current study was conducted to investigate the effects of Mexican oregano essential oil (MOO) extracts from Lippia berlandieri Schauer (LBS) and Poliomintha longiflora Gray (PLG) on performance, blood profiles, carcass variables, and meat composition of broilers at slaugther. A total of 360 one-day-old Ross broilers were randomly distributed into four dietary treatments with six replicate pens per treatment and 15 birds per pen. The dietary treatments were: a basal diet (control), control + 0.40 g of LBS/kg of feed, control + 0.40 g of PLG/kg, and control + 0.40 g of LBS/kg + 0.40 g of PLG/kg. Results showed that linear, quadratic, and cubic effects of days were significant in the performance variables of broilers. The treatments with LBS and PLG maintained the broiler body weight without increasing feed intake and water intake when compared with the control group. Broilers given LBS+PLG and PLG had increased blood leukocytes, lymphocytes, lowdensity lipoprotein, and hot carcass yields. In meat composition, treatments with PLG and LBS+PLG presented similar breast protein content compared with the control treatment. Supplementation with these two MOO exhibits positive effects on broiler performance, blood profiles, carcass traits, and meat composition. These two MOO may be promising feed supplements as growth promoters and enhancers of meat quality in broiler production.
Iowa State University animal industry report, 2019
The antioxidant effect of oregano essential oil and tannic acid combinations on the ground chicken breast and thigh meats were studied. Six treatments were prepared. Cooked meat samples were individually vacuum-packaged in oxygen-impermeable vacuum bags and then cooked in-bag to an internal temperature of 75 ℃ and were analyzed for lipid and protein oxidation, color, and volatiles at 0, 3, and 7 days of storage. The significant differences among the treatments were very clear in cooked meat samples. Thigh meat patties showed higher TBARS, total carbonyl, and volatiles values compared to the breast meat during storage. The combination of 200 ppm oregano oil and 10 ppm tannic acid showed the most significant effects (P < 0.05) on TBARS, total carbonyl, and off odor volatile formation for both breast and thigh meat. Oregano oil (200 ppm) and 10 ppm tannic acid combination also showed positive effects on the sensory scores of chicken thigh meat. In conclusion, the combination of 200 ppm oregano oil and 10 ppm tannic acid could be a good natural replacement for the synthetic antioxidants in the ground chicken meat.
Antioxidants (Basel, Switzerland), 2016
A study was conducted to investigate the effect of oregano essential oil on the oxidative stability and color of raw and cooked chicken breast meats. Five treatments, including (1) control (none added); (2) 100 ppm oregano essential oil; (3) 300 ppm oregano essential oil; (4) 400 ppm oregano essential oil; and (5) 5 ppm butylated hydroxyanisole (BHA), were prepared with ground boneless, skinless chicken breast meat and used for both raw and cooked meat studies. For raw meat study, samples were individually packaged in oxygen-permeable bags and stored in a cold room (4 °C) for 7 days. For cooked meat study, the raw meat samples were vacuum-packaged in oxygen-impermeable vacuum bags and then cooked in-bag to an internal temperature of 75 °C. After cooling to room temperature, the cooked meats were repackaged in new oxygen-permeable bags and then stored at 4 °C for 7 days. Both raw and cooked meats were analyzed for lipid and protein oxidation, volatiles, and color at 0, 3, and 7 days ...
A study was conducted to investigate the effect of oregano essential oil on the oxidative stability and color of raw and cooked chicken breast meat. Five treatments, including 1) control (none added), 2) 100 ppm oregano essential oil, 3) 300 ppm oregano essential oil, 4) 400 ppm oregano essential oil, and 5) 5 ppm butylated hydroxyanisole (BHA), were prepared with ground boneless, skinless chicken breast meat and used for both raw and cooked meat studies. For the raw meat study, samples were individually packaged in oxygen-permeable bags and stored in a cold room (4 ℃) for 7 days. For the cooked meat study, the raw meat samples were vacuumpackaged in oxygen-impermeable vacuum bags and then cooked in-bag to an internal temperature of 75 °C. After cooling to room temperature, the cooked meats were repackaged in new oxygen-permeable bags and then stored at 4 o C for 7 days. Both raw and cooked meats were analyzed for lipid and protein oxidation, volatiles, and color at 0, 3, and 7 days of storage. Oregano essential oil significantly reduced (p < 0.05) lipid and protein oxidation, and improved color stability of raw and cooked meat. However, oregano oil at 400 ppm showed the strongest effect for all these parameters. Hexanal was the major aldehyde detected, which was decreased significantly (P < 0.05) by oregano oil treatment, in cooked meat. Overall, oregano essential oil at 100-400 ppm levels could be a potential replacement for the synthetic antioxidants in chicken meat.
Veterinary World, 2021
Background and Aim: Broiler meat is susceptible to lipid oxidation due to its high content of unsaturated fatty acids, especially when stored for a long time. Concerning with that problem, we can add natural compounds to the animal feed, as the plant essential oils, which have antioxidant, antimicrobial, and antifungal activities. The objective of this study was to evaluate the antioxidant activity, fatty acid profile, and chemical composition of the meat of broilers fed with diets containing different essential oil, including lemongrass (Cymbopogon flexuosus) and pedestrian tea (Lippia aff. rotundifolia). Materials and Methods: The experimental design used was a 4×4 factorial scheme (storage time×diets), and each treatment was repeated thrice. The treatments were applied as negative control (without antimicrobial); positive control (ration supplemented with 10 ppm of enramycin and 42 ppm of salinomycin), lemongrass (ration with 120 mg of essential oil of lemongrass for each kilogram of live weight of the animals), and pedestrian tea (ration with 120 mg of essential oil of pedestrian tea for each kilogram of live weight of the animals). Storage was performed after slaughter and evaluated monthly for 4 months. Results: The inclusion of lemongrass oil and pedestrian tea in the broiler diet did not change the ether extract content of the meat sample obtained from thigh and drumstick. The storage time promotes an increase in the moisture loss of the meat from the 2nd month in all treatments. There was an interaction between the additive and storage time for moisture loss. In the 2nd month of storage, the meat from broilers fed the antibiotic-containing feed had a lower moisture loss than those from broilers in the other treatment groups. The fatty acid profile did not differ statistically between the different treatment groups. The inclusion of additives in the food dropped the lipid oxidation at the 2nd month of storage. From the 3rd month, however, only the essential oils showed antioxidant effect. Conclusion: Antioxidant activity was positive for treatments that included essential oils. The lemongrass oil and pedestrian tea can be used as antioxidant additives in broiler diets to improve the oxidative stability of thigh-drumstick meat during storage. The results of the study suggest a good prospective for further research with profitability of usage essentials oils examined, for their economical application as feed components in broiler nutrition.
This study was conducted to evaluate the efficiency of aqueous extract of ginger root (GAE), aqueous extract of beetroot (BAE) and tomato puree (TP) as natural antioxidant sources in broiler diets during summer season. Three hundred twenty 1-d-old Arbor Acres broiler chicks (mixed sex) were randomly allocated into 32 wire cages that were then randomly divided into 8 groups (treatments, 4 cages per treatment). Chicks fed on corn-soybean meal basal diet (Con, contained 50 IU of Vit. E/Kg) supplemented with either 50 IU /Kg vitamin E (E-100) or one of the additives (GAE, BAE and TP) at levels of 0.5 or 1.0% from 1 to 40 d of age. The total phenols contents (as Gallic acid equivalent) of GAE and BAE were 44 and 31 µg/L, respectively and lycopene content in TP was 155 mg/Kg. At 40 d of age, 32 birds (4 birds/treatment) were slaughtered and carcass characteristics were recorded. Refrigerated (up to 4 days at 4°C) and frozen (60 days at -20°C) meat samples were examined for total phenols content, antioxidant activity (through two scavenging assays: DPPH and TBARS) and microbiological status. The obtained results showed that neither antioxidant source nor level affected on dressing %, thickness of breast meat and triglycerides and cholesterol compounds of chilled breast meat. On the other side, source of antioxidant have affected strongly on oxidative stability especially after freezing for 60 d. Among examined sources, using BAE was less efficient in reducing oxidation rate than both GAE and TP. The microbiological examination showed strong effect of both tested sources and levels of natural antioxidant additives on decreasing count of total bacteria and Staph. aureas in refrigerated and frozen broiler meat. Using BAE failed to decrease count of Staph. aureas in frozen meat as GAE and TP. According to results of DPPH and TBRAS assays and microbiological examination, adding GAE or TP to broiler diets could protect meat safe and healthy even with prolonged storage by freezing to 60 d.