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Growth performance,carcass traits and meat quality of yellow‐feathered broilers fed graded levels of alfalfa meal with or without wheat
Authors:Shouqun Jiang  Zhongyong Gou  Long Li  Xiajing Lin  Zongyong Jiang
Institution:Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China of Ministry of Agriculture, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, China
Abstract:The effects of 0, 40 and 80 g/kg alfalfa meal on growth performance, carcass traits and meat quality of Chinese yellow‐feathered broilers fed diets containing or lacking wheat (0 or 200 g/kg) as part of the energy source, were examined using random design with a 2 × 3 factorial arrangement of treatments. Dressing percentage and semi‐eviscerated proportion were lower, and meat color a* (redness) value was higher in birds fed diets containing wheat than diets lacking wheat (< 0.05). Drip loss was reduced by the addition of alfalfa meal to diets containing or lacking wheat (< 0.05). Average sensory score of breast meat was higher in chickens fed corn‐based diets than in those fed wheat (< 0.05). Meat from those supplemented with 40 g/kg alfalfa meal had better taste than the other two levels (< 0.05). The inclusion of wheat significantly reduced the activities of creatine kinase and calpain of breast muscle (< 0.05). In conclusion, Chinese yellow‐feathered broilers fed diets containing wheat had better meat color and lower drip loss than those fed the diets without wheat, and adding 40 g/kg alfalfa meal generally improved meat quality and taste.
Keywords:alfalfa meal  carcass traits  growth performance  meat quality  wheat  yellow‐feathered broilers
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