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鱼用饲料加工后再投喂,可提高鱼类对饲料的消化率,降低养鱼成本,提高经济效益。 1.物理加工法。包括把饲料粉碎、磨细、浸软、煮熟和混合等。如饼类饲料须敲碎加水浸泡,然后投喂。对于幼鱼,饲料浸泡后还应磨细。浸泡时间不能太久,防止饲料腐败变质。螺蛳、贝类等,须经轧碎后再投喂。 2.化学加工法。化学加工主要应用于含粗纤维较多的粗饲料,包括对粗料的碱处理和酸处理,其目的是提高
Fish feed processing and then fed, can improve the digestibility of fish feed, reduce fish costs, improve economic efficiency. 1. Physical processing method. Including the feed crushed, ground, soaked, cooked and mixed. Such as cake feed must be crushed water immersion, and then fed. For juveniles, feed should be ground after soaking. Soaking time can not be too long to prevent deterioration of feed spoilage. Lo snails, shellfish, etc., to be crushed and then fed. 2. Chemical processing method. Chemical processing is mainly used in roughage containing more crude fiber, including alkali treatment of crude materials and acid treatment, the purpose is to improve