舍饲条件下不同出生年份对中卫山羊羔羊初生重的影响

Effects of Different Years of Birth on the Birth Weight of Zhongwei Goat Lamb under Stabling Conditions

对舍饲条件下2004—2010年7年间中卫山羊羔羊初生重进行分析研究。结果表明,2004—2010年7年间的羔羊初生重均非常接近,且差异均不显著(P>0.05),其中,2007年公羔羊初生重依次分别比其他年份羔羊初生重提高12.87%、12.04%、3.37%、10.83%、10.04%和10.83%,而2007年母羔羊初生重依次分别提高8.88%、11.02%、1.43%、5.22%、11.46%和2.55%;相同年份间的初生重公羔均比母羔高,但差异不显著(P>0.05),其中,2004—2010年公羔初生重分别比母羔高5.02%、7.87%、6.84%、8.87%、3.36%、10.27%和0.70%。

The birth weight of Zhongwei goat lamb under stabling conditions from 2004 to 2010 was analyzed. The results showed that the birth weight of lamb from 2004 to 2010 was very close and the difference was not significant（P 〉0.05 ）. The birth weight of male lamb in 2007 increased by 12.87%, 12.04% ,3.37%, 10.83%, 10.04% and 10.83% than other years respectively. And the birth weight of female lamb in 2007 increased by 8.88%, 11.02%, 1.43%, 5.22%, 11.46% and 2.55% than other years respectively. The birth weight of male lamb in the same year was higher than that of female lamb, without significant differences （P 〉0.05 ）. The birth weight of male lamb during 2004-2010 was increased by 5.02%, 7.87%, 6.84%, 8.87%, 3.36%, 10.27% and 0.70% than that of female lamb.