Penaeus vannamei compound feed special for high salinity cultivation and preparation method of compound feed

Abstract

The invention belongs to the field of feeds, relates to an aquiculture feed and particularly relates to a penaeus vannamei compound feed special for high salinity (over 3%) cultivation and a preparation method of the compound feed. The penaeus vannamei compound feed contains 3-6 parts of euphausiid meal, 20-35 parts of fish meal, 2-4 parts of fly maggot meal, 3-7 parts of chicken meal, 1-5 parts of silkworm chrysalis meal, 2-6 parts of squid liver paste, 2-5 parts of shrimp shell meal, 1-3 parts of algae powder, 3-8 parts of fermented soybean meal, 3-13 parts of soybean meal, 3-8 parts of peanut meal, 2-7 parts of corn gluten meal, 10-20 parts of wheat flour, 4-10 parts of monosaccharide and / or oligosaccharide, 2-6 parts of sleeve fish liver meal, 2-4 parts of fish oil, 1-2 parts of soybean oil, 1-3 parts of soybean phospholipid powder, 0.1-0.4 part of choline chloride and 1-3 parts of monocalcium phosphate. The penaeus vannamei compound feed is capable of meeting the growth requirement of penaeus vannamei for nutrition under high salinity (over 3%), good in stability in water, strong in anti-stress capability, high in survival rate and growth speed and low in feed coefficient.

Description

technical field [0001] The invention belongs to the field of feed, and relates to a feed for aquaculture, in particular to a compound feed for Penaeus vannamei specially used for breeding with high salinity (above 30‰) and a preparation method thereof. Background technique [0002] In recent years, the aquaculture area of ​​Penaeus vannamei has rapidly expanded in my country, and the total output and total benefit have also increased significantly. In my country's vannamei aquaculture area, it is mainly divided into high-salinity seawater aquaculture (such as Zhanjiang and Hainan in Guangdong), freshwater low-salinity aquaculture (such as the Pearl River Delta in Guangdong) and brackish water aquaculture. Under the scorching sun in summer, with the evaporation of water, the salinity will continue to rise, which will greatly change the water environment, especially in Hainan. [0003] The adaptation of shrimp to the environment is generally osmotic adjustment around its isot...

AI Technical Summary

Problems solved by technology

When the salinity is higher than 26‰, because there is a large osmotic pressure gradient difference inside and outside the body, Penaeus vannamei needs to consume more energy to maintain its own osmotic balance, which will affect its growth to a certain extent

[0004] At the same time, under high salinity, the reproduction of harmful microorganisms such as Vibrio is very rapid, and the physique of Penaeus vannamei declines, and it is easy to get sick

At the same time, under the stress of high salinity, the feed intake of Penaeus vannamei slows down, causing some feed to be dissolved and lost in water, and the enzyme activity in the shrimp body decreases, which leads to an increase in the feed coefficient. Pollution is becoming more and more serious, which leads to frequent occurrence of diseases, which seriously plague the healthy development of the shrimp farming industry