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目前,由于一些养鱼专业户缺乏科学的投饵知识,使饵料利用率很低,养鱼成本增高。为此,养鱼户必须采取科学的投饵方法,提高鱼用饵料利用率,才能获得较高的经济效益。1.饲用混合饵料.饵料系数决定于饵料中各种营养物质的含量,某一种营养成分过多或不足,对消化率都有不良影响。据试验,饵料中缺乏磷时,蛋白质只能消化83.2％,当加入0.5％的磷酸钾,蛋白质的消化率就提高91.2％。用饼渣单独喂鲤鱼时,饵料系数为5—6,甚至到8,当加入白垩时,可降到4。用单一饵料喂鲤鱼时,
At present, due to the lack of scientific feeding knowledge of some specialized fish farming families, the utilization of food is very low and the cost of raising fish is increased. To this end, fish farmers must adopt a scientific method of feeding to improve the utilization of fish bait, in order to obtain higher economic benefits. 1. Feed mixed bait The bait coefficient depends on the content of various nutrients in the feed, a certain kind of nutrients too much or too little, have a negative impact on the digestibility. According to the experiment, the lack of phosphorus in the diet, the protein can only digest 83.2%, when adding 0.5% potassium phosphate, protein digestibility increased by 91.2%. Feed the carp individually with the crackers, the food factor is 5-6, even to 8, when adding chalk, can drop to 4. With a single feed feeding carp,