Carassius aurutus gibelio compound feed and preparation method thereof

Abstract

The invention discloses a Carassius aurutus gibelio compound feed and a preparation method thereof. The Carassius aurutus gibelio compound feed comprises the following components in percentage by weight: 3-5wt% of imported fish meal, 10-15wt% of domestic fish meal, 30-35wt% of bean pulp, 20-22wt% of rapeseed meal, 2-5wt% of cottonseed meal, 8-10wt% of rice bran, 3-5wt% of flour, 3-5wt% of oatmeal, 3-5wt% of soybean oil, 1-3wt% of monocalcium phosphate, 2wt% of premix, 1-2wt% of liquid phospholipid, 0.5wt% of enzymic preparation and 0.5wt% of Chinese herbal medicines. The compound feed provided by the invention has the advantages of balanced amino acid, proper energy-nitrogen ratio and calcium-phosphorus ratio, complete and abundant nutrition and reasonable proportion, and can be used for effectively improving the utilization ratio of feed, lowering bait coefficient, reducing nitrogen and phosphorus discharge, lightening water body pollution, and strengthening the immunity and the premonition of fish.

Description

Technical field [0001] The present invention involves a fish feed, which specifically involves a heterogeneous silver with feed and their preparation methods. Background technique [0002] Heterosexual silver is one of the main breeding varieties in my country. It has good hybrid advantages. It has obvious effects than ordinary catfish, and the meat is tender, nutritious, and long -distance survival. Living fish is widely distributed and adaptable. It is mainly distributed in the eastern coast and the middle and lower reaches of the Yangtze River. The total breeding area is 6.5 million mu, and the annual output is 5 million tons.Based on the coastal beaches of Jiangsu and some areas of Zhejiang, they are relatively concentrated.With the continuous expansion of breeding silver breeding, the continuous increase of breeding density (from the previous 1000 tail / mu to 2000 / mu), the feeding feeding is continuously popularized, and the total amount of nitrogen and phosphorus excretion d...

AI Technical Summary

Problems solved by technology

[0003] There are some scattered domestic studies on the nutritional requirements of heterogeneous gibel crucian carp, which mainly focus on the research on the appropriate demand level and utilization rate of nutrients, but they are not systematic

In 2003, researcher Xie Shouqi from the Institute of Hydrobiology of the Chinese Academy of Sciences first adopted standardized nutrition research techniques to conduct systematic research on the breeding standards and pollution-free feed for heterogeneous gibel carp. There is no in-depth research on the nutritional requirements of educating gibel carp, and now seven years later, the breeding mode, scale, stocking density, and breeding concept of heterogeneous gibel carp have undergone significant changes, and new requirements have been put forward for feeding standards. The utilization of protein in feeding standards should be considered, and the appropriate energy-to-nitrogen ratio, calcium-phosphorus ratio, and amino acid balance in the formula should be ensured, so as to reduce nitrogen and phosphorus excretion and protect the aquaculture water environment and ecological balance.