Yeast extract for macrobrachium rosenbergii and feed formula thereof

Abstract

The invention relates to a yeast extract for macrobrachium rosenbergii and a feed formula thereof. The yeast extract is yeast cell extract dry powder with good water solubility and after amino acid balance. The extract includes, by weight, the following main raw materials (accounting for a dry matter): 56.7-63.2% of crude protein, 0.9-1.2% of total fat, 10.8-11.2% of carbohydrate, 29.5-31.7% of crude ash, and total amino acid with a total content of 523.2-524.2 mg.g-1 dry matter. The feed formula includes, by weight, the following raw materials: 15 parts of soybean meal, 5 parts of rapeseed meal, 10 parts of peanut meal, 13.8 parts of fish meal, 13 parts of balanced yeast extracts, 3 parts of beer yeast, 4 parts of blood meal, 18.9 parts of flour, 5 parts of wheat bran, 0.6 part of fish oil, 2 parts of soybean oil, 7.7 parts of a composite additive, and 2 parts of calcium phosphate monobasic. The yeast extract for the macrobrachium rosenbergii and the feed formula thereof reduce the level of the fish meal in feed, and solves the problem of high cost of breeding of the macrobrachium rosenbergii.

Description

technical field [0001] The invention relates to a macrobrachium rosenbergii yeast extract and a feed composition thereof. Background technique [0002] Macrobrachium rosenbergii (Macrobrachium rosenbergii), also known as white-legged prawns, Malaysian prawns, money prawns, Penaeus prawns, etc., is known as the king of freshwater shrimps. Because of its thin shell and fat body, fresh and tender meat, rich nutrition, wide appetite, fast growth, easy domestication, and short breeding cycle, it has become one of the main varieties of freshwater shrimp farming in the world. The application of feed is a key link in aquaculture. In recent years, the cost of compound feed for Macrobrachium rosenbergii has increased significantly due to the soaring price of fish meal and other feed raw materials. Without affecting growth, reducing the level of fishmeal in feed is the key to reducing the price of feed. Therefore, seeking cheap protein sources to replace fishmeal in feed has become on...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a Macrobrachium rosenbergii yeast extract and its feed composition. The present invention partially or completely replaces fish meal with the yeast extract, and does not affect the growth, protein digestibility and quality of Macrobrachium rosenbergii, reducing the The level of fishmeal in the feed can solve the problem of high cost of Macrobrachium rosenbergii farming