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dai ru fen dai ti xian niu nai dui zao qi duan nai du niu sheng chang ji jian kang zhuang kuang de ying xiang
Author(s): 
Pages: 9-11
Year: Issue:  22
Journal: China Dairy Cattle

Keyword:  代乳粉犊牛生长健康;
Abstract: 试验在天津梦得牧业发展有限公司、蓄驰奶牛养殖场开展,按照单因素对比试验设计原则,根据犊牛日龄、体重相近的原则,每试验场选取40头犊牛随机分为试验纽和对照纽,每组20头,犊牛单栏饲养。试验犊牛分别于出生1日龄、9日龄、21日龄、31日龄、41日龄、51日龄和61日龄清晨饲喂前空腹称重,测量胸围、体高,同时观察、记录各组犊牛采食量、死亡数和发病等情况。试验结果表明,犊牛30日龄前生长日增重试验组与对照...
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