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随着水产养殖结构的调整,养殖方式由混养向主养,分散养向规模化、集约化发展。鱼用饵料逐步由单一品种向多品种、颗粒化转化。目前,在实践生产中许多养鱼户由于缺乏对颗粒饵料制作中科学性的了解,从而出现饵料系数大、成本高、效益差的现象。因此,应注意以下几个问题: 一、原料的颗粒直径以0.8毫米为宜。目前大多养殖户使用的饲料机是用手工或电动搅肉机略加改进而成,主要缺陷是压力小、成品饵料吸水率高。如原料颗粒大不仅会影响鱼对饵料的消化吸收,降低饵料利用率,而且吸水快,浮力小,营养成份散失多,造成浪费。因此,原料的直径以0.8毫米为宜。 二、采用多原料配制,保证混料营养成份齐全和
With the adjustment of aquaculture structure, farming methods from polyculture to the main support, decentralized growth of large-scale, intensive development. Fish with food gradually from a single species to more varieties, granulation transformation. At present, due to the lack of scientific understanding of granular food production, many fish farmers in practice have problems of large food cost, high cost and poor efficiency. Therefore, we should pay attention to the following questions: First, the particle diameter of raw materials to 0.8 mm is appropriate. At present, most farmers use the feed machine is manually or electric chopper made a slight improvement, the main drawback is the pressure is small, finished bait water absorption. Such as raw material particles will not only affect the digestion and absorption of fish feed, reducing the utilization of food, but also fast absorption, buoyancy, loss of nutrients more, resulting in waste. Therefore, the diameter of raw materials to 0.8 mm is appropriate. Second, the use of more raw material preparation, to ensure complete and nutritious ingredients