用130kg发酵初乳饲养犊牛试验

A Limited Feeding Experiment on Weanling Calves with 130 kg Fermented First Milk

用１３０ｋｇ自然发酵初乳进行奶犊牛４５ｄ断奶试验。结果表明，６月龄内试验组比常规对照组（３５０ｋｇ鲜奶，９０日龄断奶）生长速度缓慢，经统计，差异显著（Ｐ＜０．０１），体重分别是９９．７４ｋｇ和１３４．７５ｋｇ；６月龄后两组的生长速度、头胎受妊月龄及头胎产奶量相近（Ｐ＞０．０５）；１２月龄体重分别是２３６．１４ｋｇ和２３４．１１ｋｇ，头胎妊娠月龄分别是２０．４４个月和２０．１８个月，产奶量分别是５１４３．１３ｋｇ和５２１３．７６ｋｇ。

A limited feeding experiment was carried out with 130 kg fermented first milk for calves weaned at 45 days old.The results showed that the growth rate of treatment group in the first 6 months was slower than that of CK(350 kg milk and 90 days weaning age)and their difference was significant(P<0 01).Their body weight were 99 74 kg and 134 75 kg respectively,after 6 months of age,the growth rate,first born pregnant age in month and first born milk yield between two groups were similar(P>0 05).