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中国荷斯坦牛生产性能测定技术规范
Technical specification of chinese holstein cattle performance test
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北京油鸡
Beijing you chicken
价格：￥0.00
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种公牛饲养管理技术规程
Guideline on feeding and maagement of breeding bulls
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奶牛胚胎移植技术规程
Procedure of embryo transfer technology in dairy cattle
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无公害食品 蛋鸭饲养管理技术规范
价格：￥0.00
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无公害食品 肉鸭饲养管理技术规范
价格：￥8.00
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畜禽屠宰加工厂实验室检验基本要求
价格：￥0.00
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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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