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42、为什么说科学投饵施肥是预防湘云鲫(鲤)发病的有效方法?答:科学投饵、投喂优质饲料,如新鲜适口,没有霉变,营养成份全面的配合饲料,是保证饲养湘云鲫产量提高的关健措施,也是增强湘云鲫(鲤)对疾病抵抗力的有力保障。投喂饵料要做到“四定”和“三看(”看天气、看鱼类活动情?
42, why scientific feeding fertilization is an effective way to prevent the incidence of crucian carp (carp)? A: scientific feeding, feeding high-quality feed, such as fresh palatability, no mildew, nutritional ingredients comprehensive feed, is to ensure feeding The key measures to improve the yield of the crucian carp are also a strong guarantee for the disease resistance of the crucian carp (Cyprinus carpio L.). Feed bait to be “four” and “three to see (” to see the weather, look at the activities of fish?