Penaeus vannamei intermediate rearing stage feed and application thereof

Abstract

The invention provides a penaeus vannamei intermediate rearing stage feed and application thereof. The penaeus vannamei intermediate rearing stage feed comprises the following components by mass percentage: 6% of a fat source raw material, 11.35-11.75% of a sugar source raw material, 0.65% of an antioxidant, 1% of compound vitamin, 1% of a compound mineral salt, 1.5% of a feeding attractant, 0-0.4% of a glyceryl tributyrate coating product, 1% of choline chloride, 3% of calcium dihydrogen phosphate, 0.1% of lysine, and the balance a protein source raw material. The invention also provides application of the penaeus vannamei intermediate rearing stage feed to improvement of the survival rate of limpenaeus vannamei at the intermediate rearing stage. The glyceryl tributyrate coating materialadded in the invention greatly improves the limpenaeus vannamei survival rate, and experiments prove that adding of 0.4% of the glyceryl tributyrate coating material into the feed can significantly improve the survival rate of limpenaeus vannamei.

Description

technical field [0001] The invention relates to a feed, in particular to a raw feed for Penaeus vannamei and its application. technical background [0002] In the late 1980s, Penaeus vannamei was introduced into my country. It is popular among shrimp farmers due to its fast growth and strong disease resistance. It is currently an important seawater and brackish water cultured shrimp in my country. The breeding range is popular all over the country and mainly distributed In the southern coastal areas, because of its fast growth rate, high feed efficiency and large economic benefits, it has become the main economic source for farmers to increase production and income, and has broad market prospects. In the past two years, as the breeding environment has become worse and worse, more farmers have chosen the small shed farming mode. Before the shrimp enters the big pond, let the shrimp seedlings be marked for about 20 days in the small shed, which can greatly improve the quality o...

AI Technical Summary

Problems solved by technology

[0003] For Penaeus vannamei in the rough stage, the growth rate and survival rate are very important evaluation indicators. At present, with the increasing pollution of coastal seawater in my country and the blind expansion of seawater aquaculture, Vibrio and other harmful The number of bacteria is getting higher and higher, and their tolerance to various antibiotics is getting stronger and stronger. As a result, the larvae whose immune system is not perfect are often threatened by diseases, and the survival rate is low, especially once infected Vibrio often leads to the destruction of the entire standard thick pond. Even if a part can be saved in the end, this part of the shrimp is also a carrier of bacteria, which poses a great threat and harm to the later breeding

[0004] At present, due to the resistance of antibiotics and the inhibitory effect and teratogenicity on the later growth of larvae, it has become an important issue to improve the resistance of prawns to pathogens during the rough stage of larvae.

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