Application of cell wall skeleton as penaeus vannamei feed additive

Abstract

The invention relates to an application of a cell wall skeleton as a penaeus vannamei feed additive. According to the application, 0.8-1.2g of the cell wall skeleton is added to each kilogram of a penaeus vannamei basal feed, wherein the cell wall skeleton is obtained in the following manner of enabling separated and purified nocardiopsis lucentensis to be subjected to enlarged culture, performingultrasonic wave crushing on fermentation liquor, performing centrifuging, performing enzymolysis with trypsin, performing defatting, and performing freeze drying so as to obtain a white cell wall skeleton. According to the application disclosed by the invention, the activity of superoxide dismutase, nitricoxide synthase, phenoloxidase, lysozyme and glutathione peroxidase in hemolymph and hepatopancreas of penaeus vannamei can be notably increased, the concentration of malondialdehyde can be notably reduced, the respiratory burst activity of the hemolymph of the penaeus vannamei can be notablystrengthened, the immunity protection ratio of the penaeus vannamei can be obviously increased, and the breeding survival rate of the penaeus vannamei can be obviously increased.

Description

technical field [0001] The invention belongs to the technical field of aquatic product breeding feed, in particular to the application of a cell wall skeleton as a feed additive for Penaeus vannamei. Background technique [0002] Penaeus vannamei, native to the waters of the Pacific coast of the Americas, is mainly distributed in the northern part of Peru to the coast of the Gulf of Mexico, with the most concentrated distribution along the coast of Ecuador. The Institute of Oceanology, Chinese Academy of Sciences introduced it to China from Hawaii, USA in 1988, and now it has been widely cultivated throughout the country. However, with the passage of breeding time, the shrimp species have degenerated significantly, and the resistance to diseases has decreased. Coupled with the deterioration of the breeding environment, diseases have occurred frequently, which has become the main bottleneck restricting the healthy development of my country's shrimp farming industry. Since ant...

AI Technical Summary

Problems solved by technology

However, with the passage of breeding time, the shrimp species degenerated significantly, and the resistance to diseases decreased, coupled with the deterioration of the breeding environment, resulting in frequent occurrence of diseases, which became the main bottleneck restricting the healthy development of my country's shrimp farming industry.