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du ha yi dai za zhong zi zhu yu cheng shi yan
Author(s): 
Pages: 5-8
Year: Issue:  10
Journal: Heilongjiang Animal Science and Veterinary Medicine

Keyword:  仔猪初生重一代杂种育成率生长肥育期成年后期仔猪日增重生产群个体重试验结果杜洛克;
Abstract: <正> 我国北方猪场仔猪育成水平,大致是60天断奶个体重平均14公斤左右,而国外同期水平可达20公斤左右,相差6公斤,比我国仔猪育成速度高42.9%。如按本期仔猪日增重350克计,则增加6公斤体重需要17天,因而大大推迟了生长肥育期。况且仔猪阶段与成年后期相比,体内营养贮备内容与速度不同,仔猪或幼猪时期,
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