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世界各国都有证据表明,常规的多点式生产模式不利于预防病毒性并发感染,所以现在提出对生产模式进行调整以便更好地改善猪的健康,而调整后的生产模式能提促进猪的健康。
All countries in the world have evidence that the conventional multi-point mode of production is not conducive to the prevention of viral concurrent infection. Therefore, it is proposed to adjust the mode of production so as to better improve the health of pigs. However, the adjusted mode of production can promote pigs health.