Improved hygiene is production and feeding practices are useful in preventing the introduction of the disease in piggeries and swine holdings.
改善生产卫生和喂养方式有助于在养猪场和猪舍预防疾病传入。
Improved hygiene is production and feeding practices are useful in preventing the introduction of the disease in piggeries and swine holdings.
改善生产卫生和喂养方式有助于在养猪场和猪舍预防疾病传入。
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