兽药产品批准文号是农业部根据兽药国家标准、生产工艺和生产条件批准特定兽药生产企业生产特定兽药产品时核发的兽药批准证明文件,是兽药产品唯一身份证明。由于大部分企业把产品批准文号作为一种贮备资源,申请产品批准文号后长期闲置不用, The veterinary drug product approval number is the veterinary drug approval document issued by the Ministry of Agriculture when approving the production of a specific veterinary drug product by a specific veterinary drug manufacturer according to the national standards, production technology and production conditions of veterinary drugs, and is the only identification certificate of the veterinary drug product. Because most companies take the product approval number as a kind of reserve resource, long-term idle after applying for product approval number,