Environment-friendly formula feed for tilapia nilotica

Abstract

The invention discloses an environment-friendly formula feed for tilapia nilotica. The feed is prepared from the following raw materials by mass percent: 15-40 of raw materials sourced in proteins, 5-9 of soybean oil, 35-50 of corn starch, 0-3.0 of complex vitamin, 0-5 of complex mineral salt, 0-0.3 of vitamin C sodium phosphate and 0-18 of vitamins, wherein the raw materials sourced in proteins are one or more mixtures of crystalline amino acid mixture, gelatin and casein. By using casein, gelatin and the efficiently matched crystalline amino acid mixture instead of existing common feed protein raw materials, such as fish meal, soybean meal and cottonseed meal, the formula feed has the effects of effectively meeting the nutritional requirements for rapid growth of tilapia, increasing the feed protein conversion efficiency, reducing pollution and damages caused by the feed on the environment of aquaculture water in the aquaculture process, meeting the requirements of green and healthy aquaculture and increasing the industrial profits and is of great significance in sustainable development of the tilapia aquaculture industry.

Description

technical field [0001] The invention relates to a feed, in particular to an environment-friendly compound feed for Nile tilapia. Background technique [0002] Nile tilapia is a high-quality fish promoted by the Food and Agriculture Organization of the United Nations to the world. At present, Nile tilapia mainly uses compound feed as the main feeding bait, but the nutrient content in the ingredients is not very reasonable. Due to the shortage of feed protein raw material fishmeal in China, it often needs to be imported from abroad, and the price fluctuates with market changes, resulting in feed costs. The fluctuation is relatively large, and the protein utilization rate of soybean meal and cotton meal as a substitute for fishmeal is low, which is very unfavorable to the production of tilapia, which cannot give full play to its good growth performance and directly loses the economic benefits of farmers; and due to the utilization of feed protein The ammonia nitrogen content d...

AI Technical Summary

Problems solved by technology

At present, Nile tilapia mainly uses compound feed as the main feeding bait, but the nutrient content in the ingredients is not very reasonable. Due to the shortage of feed protein raw material fishmeal in China, it often needs to be imported from abroad, and the price fluctuates with market changes, resulting in feed costs. The fluctuation is relatively large, and the protein utilization rate of fishmeal substitute raw material soybean meal and cotton meal is low, which is very unfavorable to the production of tilapia, which cannot give full play to its good growth performance and directly loses the economic benefits of farmers; and due to the utilization of feed protein The ammonia nitrogen content discharged into the aquaculture water body caused by the low production rate exceeds the standard, causing the pollution of the water body environment

Ammonia in the water is very toxic to fish, which will cause the anti-stress response of fish to ammonia nitrogen. If the anti-ammonia nitrogen stress response is present for a long time, it will lead to the decline of fish immunity, cause fish diseases, and cause fish growth. drop in quality