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wei sheng su e ti gao nai niu shou tai lv de xiao guo guan cha
Author(s): 
Pages: 23-24
Year: Issue:  10
Journal: Heilongjiang Animal Science and Veterinary Medicine

Keyword:  情期受胎率效果观察奶牛生产黑白花奶牛产奶量营养物质试验组牛群母牛百分单位;
Abstract: <正> 奶牛生产中,特别是在高产牛群中随着产奶量的增加,受胎率有下降的趋势。而维生素E是维持奶牛正常繁殖和健康所必需的营养物质。为此,我们进行了肌注VE提高受眙率的专门试验。
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