摘要
选用１５头泌乳盛期荷斯坦牛，采用对比试验方法研究日粮中添加碘对奶牛产奶量的影响，结果是：补饲ＫＩ１５和２５ｍｇ／头·日组的日平均奶量分别比对照组高３．４９千克（Ｐ＜０．０５）和２．７６千克（Ｐ＜０．０５）。两个试验组之间日平均奶量无显著差异（Ｐ＞０．０５）。三个组牛血清中Ｔ４和Ｔ３浓度无明显差异。
Fifteen Holstein lactating dairy cows at peak of lactation were randomly divided Into three groupw of five lactating cows each in this study (The effect of supplement KI in the ration on prodution of the dairy cows were conducted with the comparative feeding experiments (The result indicated that averag daily milk production of supplemet KI 15 and 25 mg/d group were higher 3. 49kg(p<0. 05)and 2. 76kg(p <0. 05) than that of the control cows, respectively. The averay dairly milk production between the experiment cows were insignificant (P> 0. 05). T4 snd T3 concentration in the serum of cows among three groups wereinsignificant.
出处
《黑龙江畜牧兽医》
CAS
北大核心
1994年第3期7-8,共2页
Heilongjiang Animal Science And veterinary Medicine
关键词
乳牛
泌乳期
碘
饲养
Dairy cows KI Peakoflactation T_4 T_3
