日粮中添加酶制剂对环颈雉繁殖机能影响的研究

主要探讨了酶制剂对环颈雉繁殖机能的影响。分别在种雉日粮中添加 0 5 %纤维素酶 +0 5 %淀粉酶、0 5 %纤维素酶 +0 5 %中性蛋白酶、0 3 %纤维素酶 +0 3 %淀粉酶 +0 4%中性蛋白酶。试验结果表明 ,种雉总产蛋数、产蛋总重及产蛋率均有明显提高 ,种蛋受精率、孵化率也有所提高 ;同时 ,料蛋比及啄蛋数、碎蛋数均有明显降低。平均蛋重及种蛋品质无显著变化 (P >0 0 5 ) ,种蛋中粗蛋白、无氮浸出物含量有所提高。综合比较 ,以添加 0 5 %纤维素酶 +0 5 %中性蛋白酶 ,作用效果最好。

STUDY ON THE EFFECTS OF ENZYME PREPARATIONS SUPPLEMENTATION ON BREEDING PERFORMANCE OF PHEASANTS

Pheasants were fed the same diet supplemented with 0.5% cellulose enzyme+0.5% starch enzyme, 0.5% cellulose enzyme+0.5% neutral protein enzyme, 0.3% cellulose enzyme+0.3% starch enzyme+0.4% neutral protein enzyme respectively. Results showed that the number of laying eggs, total egg weights and the rate of laying eggs were obviously increased, the rates of fertility and hatchability of hatching eggs were also increased; in the meantime, the ratio of feed to egg and the number of pecked eggs and broken eggs were obviously decreased. The average weight and quality of eggs did not vary significantly (P>0.05),the crude protein and nitrogen-free extraction contents in eggs were increased. In general, the results of adding 0.5% cellulose enzyme+0.5% neutral protein enzyme were best.