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蛋鸡饲养HACCP管理技术规范
HACCP of Feeding and Managing for Layer
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肉用家禽饲养HACCP管理技术规范
HACCP of Feeding and Managing for Poultry
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肉用家畜饲养HACCP管理技术规范
HACCP of feeding and managing for meat type domestic animals
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牛人工授精技术规程
Regulation of Bovine Artificial Insemination
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种禽档案记录
Records for breeding birds
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兽用套管针
Trocar for animals
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牛胃取铁器
Apparatus for fetching material from cattle's stomach
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电热切喙器
Electothermal debeaker
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细毛羊饲养技术规程
Regulation for fine wool sheep feed
价格：￥0.00
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