Low-protein low-fish meal feed for Litopenaeus vannamei

A low-protein, low-fishmeal technology, applied in animal feed, animal feed, climate change adaptation, etc., can solve the problems of amino acid imbalance, restricting the application of aquatic feed, anti-nutritional factors, etc., to achieve stable sources and facilitate large-scale promotion and application , the effect of simple production process

Inactive Publication Date: 2011-10-19
广东省农业科学院畜牧研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most animal and plant protein sources have problems such as amino acid imbalance and anti-nutritional factors, which restrict their application in aquafeeds

Method used

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  • Low-protein low-fish meal feed for Litopenaeus vannamei
  • Low-protein low-fish meal feed for Litopenaeus vannamei

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Each raw material was crushed and passed through a 60-mesh sieve, and each raw material was weighed according to formula 1 shown in Table 1. Fish meal, soybean meal, peanut meal, squid meal, shrimp shell powder, brewer's yeast and flour were mixed evenly, and then methionine, lysine Acid, vitamin C phosphate, choline chloride, calcium dihydrogen phosphate, salt, vitamin premix, mineral premix, zeolite powder, bentonite were added in portions for mixing, and then soybean oil and fish oil were added to the mixed In the mixture, stir and mix evenly to obtain the low-protein and low-fishmeal feed for Litopenaeus vannamei of this embodiment, and its nutrient composition analysis is shown in Table 2. With this feed raising 0.45g Litopenaeus vannamei for 56 days, the feed conversion efficiency was 78.32%, the specific growth rate was 3.67, the weight gain rate was 679%, the protein efficiency was 2.45, and the survival rate was 83.89%. There was no significant difference in th...

Embodiment 2

[0024] Formula 2 shown in Table 1 was prepared according to the method of Example 1 to obtain the low-protein and low-fishmeal feed for Litopenaeus vannamei in this example, and its nutritional composition analysis is shown in Table 2. With this feed raising 0.87g Litopenaeus vannamei for 56 days, the feed conversion efficiency was 76.07%, the specific growth rate was 3.59, the weight gain rate was 646%, the protein efficiency was 2.38, and the survival rate was 86.67%. There was no significant difference in the parameters of Litopenaeus vannamei raised by the same method.

Embodiment 3

[0026] Formula 3 shown in Table 1 was prepared according to the method of Example 1 to obtain the low-protein and low-fishmeal feed for Litopenaeus vannamei in this example, and its nutritional composition analysis is shown in Table 2. With this feed raising 0.33g Litopenaeus vannamei for 56 days, the feed conversion efficiency was 82.52%, the specific growth rate was 3.75, the weight gain rate was 715%, the protein efficiency was 2.58, and the survival rate was 85.57%. There was no significant difference in the parameters of Litopenaeus vannamei raised by the same method.

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Abstract

The invention discloses a low-protein low-fish meal feed for Litopenaeus vannamei. The content of proteins in a Litopenaeus vannamei feed is reduced by supplementing exogenous methionine, the content of fish meal in the feed is reduced by utilizing bean pulp with plant protein sources and peanut meal, and then the exogenous methionine, the bean pulp and plant protein sources and other raw materials are mixed according to a reasonable proportion to form the low-protein low-fish meal feed for the Litopenaeus vannamei. The using amount of the fish meal in the feed is reduced to be less than 10 percent to the maximum extent, and the problem that amino acid is unbalanced in a single protein source is solved by adding a plurality of kinds of plant protein sources. The content of the fish meal and the content of the proteins in the Litopenaeus vannamei feed are remarkably reduced, and the feed is favorable for reducing the cost, improves the utilization rate of the feed, and reduces the discharge of nitrogen and phosphorus in the aquaculture process so as to reduce environmental pollution. Through feeding experiments for a long time, the results show that when the Litopenaeus vannamei is fed by using the low-protein low-fish meal feed for the Litopenaeus vannamei, the feed has no adverse effect on the growth performance and feed coefficient of the Litopenaeus vannamei, and the discharge amount of nitrogen and phosphorus in water bodies can also be reduced.

Description

Technical field: [0001] The invention belongs to the field of aquaculture feed, in particular to a low-protein and low-fishmeal feed for Litopenaeus vannamei. Background technique: [0002] Litopenaeus vannamei, also known as Litopenaeus vannamei, Penaeus vannamei, Penaeus vannamei, etc., is one of the world's three major economically farmed prawns. It has fast growth, high temperature resistance, strong disease resistance, and miscellaneous food habits. , broad-salinity, short breeding cycle, high meat yield, and low requirements for feed protein content, etc., can adopt pure fresh water, brackish water, seawater multiple farming models, and China has the largest farming area and output of Litopenaeus vannamei s country. [0003] Fish meal has the advantages of high protein content, rich in essential amino acids for animals, and easy digestion and absorption by animals. It has always been an indispensable high-quality protein source in aquatic feed, especially carnivorous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K50/80
CPCY02A40/818
Inventor 曹俊明朱选赵红霞陈冰杨志强
Owner 广东省农业科学院畜牧研究所
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