Antistress agent for prawn

Abstract

The prawn stress resisting preparation consists of: conjugated linoleic acid 20-35 wt%, beta-glucosan 15-25 wt%, vitamin C-2-phosphate 10-20 wt%, potassium diformate 10-20 wt%, vitamin B1 10-15 wt%, vitamin B6 10-15 wt% and methionine zinc 5-10 wt%. The present invention has the follow advantages: capability of raising ingestion rate of prawn to promote its growth, promoting exuviations of prawn, raising the survival rate of whole prawn raising period and yield, stable material source, low cost and simple production process.

Description

technical field [0001] The invention relates to a feed additive, in particular to an anti-stress additive for prawns. Background technique [0002] The so-called stress refers to a non-specific response of aquatic animals to adverse environmental factors. These factors include: sudden changes in water temperature (such as the impact of cold currents and intense heat), sudden changes in water quality (such as the impact of typhoons, rainstorms, etc.), excessive stocking density, malnutrition, and other external stimuli. Shrimp is a kind of aquatic animal that is very sensitive to environmental changes, especially Litopenaeus vannamei (this shrimp has become the main species in the north and south of my country since 2000, accounting for more than 80% of the total shrimp farming output). Shrimp under stress often show symptoms such as anorexia, irritability, cramps, blocked molting, soft shells, slowed growth, and increased mortality. Due to the uncontrollability of weather ...

AI Technical Summary

Problems solved by technology

However, unfortunately, so far, no similar products have been found on the market, and no relevant literature on the anti-stress agent for prawns has been seen.