Effects of Rhus coriaria on nutrient composition, thiobarbituric acid reactive substances and colour of thigh meat in heat-stressed broilers
2015
Sharbati, A.(Urmia University Faculty of Agriculture Department of Animal Science) | Daneshyar, M.(Urmia University Faculty of Agriculture Department of Animal Science) | Aghazadeh, A.(Urmia University Faculty of Agriculture Department of Animal Science) | Aliakbarlu, J.(Urmia University Faculty of Veterinary Medicine Department of Food Hygiene and Quality Control) | Hamian, F.(Urmia University Faculty of Veterinary Medicine Department of Food Hygiene and Quality Control)
Heat stress negatively affects the meat quality in broiler chickens, as indicated by lipid peroxidation. The aim of this study was to investigate the effects of 0.0, 2.5, 5.0 and 10 g sumac fruit powder/kg of the diet, along with 100 mg α-tocopherol acetate (AT)/kg as antioxidants, on meat characteristics of broilers under heat stress conditions. Consumption of 5.0 g sumac/kg decreased the thiobarbituric acid reactive substance (TBARS) concentration in thigh meat. The thigh meat pH increased only as a result of AT consumption. Dietary inclusion of both AT and 10 g sumac/kg decreased the fat content of the meat. None of the meat colour indices, lightness (L*), redness (a*) and yellowness (b*), was affected by dietary treatments. It was concluded that dietary sumac consumption improved the TBARS and pH, and decreased thigh meat fat in broilers under heat stress.
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