钙源对肉仔鸡生长性能、屠宰性能及肉品质的影响

采用不同钙源及钙水平的日粮对肉仔鸡生长性能、屠宰性能及肉品质的影响,试验选用144只健康21日龄的AA肉仔鸡,随机分成4个处理,每个处理6个重复,每个重复6只.饲粮采用两种钙源(碳酸钙、氯化钙)、两个钙水平(0.90%、L15%),试验期28 d(4～7w).结果表明,与碳酸钙相比,日粮中氯化钙可降低肉仔鸡的生长性能(...

Effect of dietary calcium sources on growth Performance, slaughter performance and meat quality in broilers

The experiment was conducted to study the effects of different dietary calcium sources and levels on growth performance,slaughter performance and meat quality in broilers.A total of 144 healthy,21-day-old broilers were randomly allocated into 4 treatments for 28 days.Each treatment contained 6 replicates with 6 broilers per replicate.Dietary calcium sources were calcium carbonate and calcium chloride,respectively.Dietary calcium levels were 0.90% and 1.15%,respectively.Results showed that:compared with the calcium carbonate,dietary calcium chloride could reduce growth performance(P<0.05) and slaughter performance (P<0.05),calcium chloride reduced shear stress (P>0.05) and muscle fiber diameter (P<0.05) of breast muscle,but improved the meat color of a (P>0.05) of breast muscle.High level of calcium could reduce the growth performance (P<0.05) and slaughter performance of broilers,and also reduced shear stress (P<0.05) and muscle fiber diameter (P<0.05) of breast muscle.The interactions between calcium source and calcium level the had significant influence on growth performance (P<0.05).But it had no significant influence on meat quality.In conclusion,calcium chloride used as a source of calcium significantly reduced the growth performance and slaughter performance,but it was better than the calcium carbonate group in meat quality.