猪分品系定制饲料配方是否必要

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提高饲料利用率是一个养殖业永不过时的话题,如何实现营养成分的有效转化?为了达到这一效果,不同品系的猪,其饲料各营养成分的配比是否应该不同?对此,业内的人士有不同的声音。本文摘编了《南方衣村报》的关于该话题的辩论,以飨读者。
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(一)合理调整水位蟹池的水位一般以平台的地方为准,控制在0.8米左右,蟹池四周沟槽的水位有可能保持在1.5米左右。经过长时间的饲养,蟹池水质变老、变肥,对河蟹生长不利,因此
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