饲粮钙磷水平对乌骨鸡生长性能及胫骨灰分含量的影响

为了得到乌骨鸡适宜的饲粮钙磷水平,将2250只乌骨鸡随机分为5组,设置不同饲粮钙磷水平,测定其对乌骨鸡生长性能及胫骨灰分含量的影响。研究结果表明,根据乌骨鸡的生长性能及胫骨灰分含量的数据分析,乌骨鸡饲粮1~25日龄钙水平0.90%、非植酸磷水平0.40%,26~45日龄钙水平0.85%、非植酸磷水平0.36%,46~65日龄钙水平0.80%、非植酸磷水平0.33%已完全满足其生长和骨骼发育的需要,高于此钙磷水平对乌骨鸡骨骼发育和生长性能无明显改善。

Effect of Calcium and Phosphorus Levels in Feed on the Growth Performance and Ash Content of Tibia of Silky Fowl

In order to obtain the optimum dietary calcium and phosphorus levels for silky fowl,2250 silky fowls were randomly divided into five groups and set different dietary calcium and phosphorus levels.The effects of different dietary calcium and phosphorus levels on growth performance and tibia ash content of silky fowl were measured.The results show that the dietary calcium and non-phytate phosphorus levels for broilers were 0.90% and 0.40% from 1 to 25 d of age,0.85% and 0.36% from 26 to 45 d of age,0.80% and 0.33% from 46 to 65 d of age,respectively.And these levels could meet the demands of growth and bone development for silky fowl.The tibia ash content and growth performance of silky fowl were not significantly improved even if the dietary calcium and phosphorus levels were higher than this level.