The results showed that there was difference in the lower raising density,the higher laying rate and hatchable egg rate.

因而在當(dāng)前集約化蛋雞生產(chǎn)模式中爱情岛网站亚洲禁18进入，人們主要追求的還是單位空間的雞蛋產(chǎn)量，這常常造成雞群成活率和蛋殼質(zhì)量的下降。

Results The result in 4 weeks showed that the laying rate of trial group and control group was 83.86%and 69.96% respectively; broken egg rate and malformed egg rate of trial group were 1.28% and 4.33%, that of control group was 1.69% and 1.19%; total egg number and hatchable egg number of trial hen were more than that of control hen 3.89 and 3.26 respectively ; average egg weight was not affected. E2 level in blood of trial group was higher than control group.

結(jié)果：在4周的實(shí)驗(yàn)期內(nèi)實(shí)驗(yàn)組和對(duì)照組的產(chǎn)蛋率分別為83.86%和69.96%网友自拍偷拍一区；破蛋率分別為1.28%和1.69%，畸形蛋率分別為4.33%和1.19%欧美亚洲日韩ai在线博彩；實(shí)驗(yàn)組平均每只雞的產(chǎn)蛋總數(shù)比對(duì)照組多3.89個(gè)欧美老妓女视频、合格種蛋數(shù)多3.26個(gè)；藥物處理對(duì)平均蛋重?zé)o顯著影響av一级片黄色网站；使用溴隱停能夠提高雞血液中的雌激素水平久久久久久国产精选Av香蕉。