幼年牦牛培育效果的观察

Observation of Rearing Effect for Young Yaks

经培育后,I组牦牛在12月龄,24月龄和48月龄时的体重分别比Ⅱ组提高12.16kg(18.32%),49.33kg(30.01%)和21.95kg(9.20%),组间均有极显著的差异(P<0.01)。

After rearing,the body weight of yaks in the group 1 at the age of 12 months,24 months and 48 months were increased 12.16kg（ 18.32% ） ,49.33kg（ 30.01% ） and 21.95kg（9.20% ） than those of yaks in the group 2, respectively ,and there was very significant differencl between the group 1 and the group 2（ P 〈0.01 ）