对1/2和1/4野血牦犊牛生长发育的观测

Observation on Growth and Development of Yak Calves with 1/2 and 1/4 Wild Yak Blood

１９９４～１９９６年在海南州赛什塘牧场对１／２和１／４野血牦犊牛的生长发育进行了观测。结果：１／２和１／４野血牦犊牛的初生重分别比家牦犊牛提高７．６５％和８．８６％（Ｐ＜０．０１），１／２野血牦犊牛在初生时的体高、体长和胸围比家牦犊牛分别提高３．２１％，５．５７％，５．５１％；６月龄时分别提高９．５６％，１１．４６％，３．５９％；１８月龄时分别提高９．１８％，１７．５５％，７．６４％（Ｐ＜０．０１）。

During the 1994～1996 period,an observation on growth and development of the yak calves with 1/2 and 1/4 wild yak blood was conducted in the Saishitang farm of Hainan prefecture.The results were as follows:The birth weight of the yak calves with 1/2 and 1/4 wild yak blood were 7.65 % and 8.68 % heavier than that of domestic yak calves resp.(P<0.01).Comparing with domestic yak calves,the body size measurement such as wither hight,trunk length and heart girth of the yak calves with 1/2 wild yak blood incseased by 3.21%,5.57% and 3.59% resp. at birth, 9.56%,11.46% and 3.59% resp.at 6 month old,9.18%,17.55% and 7.64% resp.at 18 month old(P<0.01). \ \