Low-protein compound feeds for litopenaeus vannamei and preparation method for low-protein compound feeds

Abstract

The invention discloses low-protein compound feeds for litopenaeus vannamei and a preparation method for the low-protein compound feeds. The compound feeds comprise the following air-dried components in percentage by weight: 5 to 15 percent of krill meal, 10 to 25 percent of chicken meal, 15 to 20 percent of soybean meal, 15 to 20 percent of peanut cake, 20 to 35 percent of high-gluten flour, 3 to 8 percent of nucleic acid yeast, 2 to 3 percent of calcium dihydrogenphosphate, 2 to 5 percent of soybean phospholipil oil, 1 to 3 percent of fish oil, 1 percent of vitamin premix and 1 percent of mineral premix. According to the compound feeds, fish meal and cuttlefish paste are completely avoided, so that dependence on imported fish meal, cuttlefish paste and cuttlefish meal can be eliminated, the production cost can be lowered, and the safety of a product can be improved; the compound feeds are high in efficiency, environment-friendly and low-protein, and comprise 34 to 36 weight percent of crude protein, and compared with that of commercially available compound feeds, the crude protein content of the compound feeds is 4 to 6 percent lower, so that pollution to a breeding water body is reduced, and equivalent feeding effects are achieved; the stress resistance of the litopenaeus vannamei can be improved, and the breeding success rate can be increased; the body color of a bred litopenaeus vannamei finished product can be improved, and the price of commercial litopenaeus vannamei can be risen.

Description

technical field [0001] The invention belongs to the field of aquaculture feed, and more specifically relates to a compound feed for Litopenaeus vannamei and a preparation method thereof. Background technique [0002] Litopenaeus vannamei (Litopenaeus vannamei), also known as White Prawn (White Prawn), alias white-legged shrimp, vannamei, belongs to Arthropoda, Crustacea, Decapod, Swimming suborder, native to the Pacific coast of South America. It is recognized as one of the three excellent shrimp species in the world. The prawn has a long reproductive cycle, fast growth, strong disease resistance, and delicious meat. It is a best-selling product in the aquatic product market and has a broad prospect. [0003] Because Litopenaeus vannamei is a best-selling product in the aquatic product market, there will be a lot of research on feeding Litopenaeus vannamei: firstly, the compound feed for prawns should meet the nutritional needs of the growth of prawns, such as Chinese paten...

AI Technical Summary

Problems solved by technology

The above-mentioned compound feeds for prawns have not considered the harm to the environment caused by the high protein in the feed formula and the pollution to the water quality of the aquaculture.

Because environmental pollution is serious day by day, people begin to consider the problem of environmental protection and come up, disclose a kind of low-protein low-fish meal feed of vannamei shrimp as CN102217741A, CN101124950A discloses a kind of low-fish meal feed of vannamei shrimp, above two patents produce Squid powder is used in the raw materials, because squid viscera powder, squid paste, squid powder, squid paste and other raw materials are difficult to control, unstable in supply, and easily enriched in heavy metals.

Studies have shown that heavy metals can damage the liver, kidneys, bones, and immune system, and have obvious toxicity to the reproductive system. They are easy to accumulate in animals and affect food safety.