【摘要】 为考察不同来源磷酸氢钙Ⅲ型[磷酸一二钙(MDCP)]与普通磷酸氢钙(DCP)对肉鸡生产性能和养分代谢的影响,试验选用1日龄肉用AA母鸡288只,随机分成4个处理,每个处理12个重复,每个重复6只鸡。处理一、处理二和处理三组均添加MDCP(分别来自不同厂家)处理四组为普通DCP组。结果表明:①MDCP组试鸡日增重和饲料转化效率均有优于DCP组的趋势,且MDCP(A)组试鸡日采食量高于DCP组;②除6周龄时MDCP(B)组试鸡采食量(ADFI)显著低于MDCP(A)组外(P<0.05),各MDCP组间,平均日增重(ADG)和料肉比(F/G)均无显著差异;③MD.CP(A)组试鸡对钙、磷和粗蛋白代谢率均高于其余各组。由此可见,与DCP相比,MDCP可提高肉鸡生产性能,且国产MDCP与国外产品在肉鸡上效果相当。更多还原

【Abstract】 The study was conducted to examine the effect of MDCP from different manufacturers and DCP on growth performance and utilization of nutrients on broiler chickens. A total of 288 1-day-old AA broiler chickens were randomly assigned to 4 groups with replicates of 12 each. Chickens were fed the diets for 7weeks with MDCP. The results showed that: ① comparied with the group of DCP, MDCP groups had a tenden.cy of improving the average daily gains(ADG)and the feed/gain(F/G). The average feed intake(ADFI) of the MDCP(A)group was significantly higher than the DCP group. ② The average daily gain and the F/G had no significant differences among three MDCP groups. ③ The utilization of Ca, P and CP from MDCP(A)group were higher than others. In conclusion, compared with DCP, MDCP can improve the growth perfor.mance of chickens, and the MDCP produced by China mainland had the same effect on growth performance of chickens with other products produced by foreigner.更多还原