关键词: 酶制剂, 环颈雉, 种雉, 繁殖机能

Abstract:

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.

Key words: Enzyme preparations, Pheasant, Hatching pheasants, Breeding performance