Feed for litopenaeus vannamei

A technology of prawn feed and prawn prawn, applied in animal feed, animal feed, application, etc., can solve problems such as high protein level of compound feed, ammonia nitrogen discharge and phosphorus content, water environmental pollution, etc., to reduce water environmental pollution, reduce Ammonia nitrogen emission and pollution reduction effect

Inactive Publication Date: 2010-09-15
SUN YAT SEN UNIV
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a vannamei according to the disadvantages that the protein content and fish meal content in the existing Litopenaeus vannamei feed are too high, resulting in high breeding costs, excessive ammonia nitrogen discharge and phosphorus content, and causing huge pollution of the water environment. Litopenaeus feed, the feed contains low protein level and balanced amino acid pattern, which reduces the pollution to the breeding water
The use of this feed effectively solves the problems of high protein level and serious environmental pollution in the current Litopenaeus vannamei culture process, not only improves the industrial profit, but also reduces the pollution and damage to the water environment during the culture process, and realizes Sustainable Development of Litopenaeus vannamei Aquaculture Industry

Method used

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  • Feed for litopenaeus vannamei
  • Feed for litopenaeus vannamei
  • Feed for litopenaeus vannamei

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The feed was formulated according to the formula shown in Table 1, and 0.28 g of Litopenaeus vannamei was fed for 56 days. The experimental results showed that the apparent protein digestibility of soybean meal, peanut meal and shrimp head powder were all greater than 78.0%, which was comparable to that of domestic fish meal and direct-fired fish meal. There was no significant difference in the apparent digestibility of protein, and it was higher than that of cotton meal, rapeseed meal and corn gluten meal; the apparent digestibility of total amino acids of soybean meal, peanut meal and shrimp head powder were all higher than 87.0%.

Embodiment 2

[0028] Feed was formulated according to the formula shown in Table 2, and the Litopenaeus vannamei of 0.47g was raised for 56 days, and the weight gain rate of Litopenaeus vannamei of formula 2 (adding methionine) was 303.7%, the feed coefficient was 1.97, and the specific growth rate was 2.49, which was compared with the contrast Compared with group formula 1 (without adding methionine), the weight gain rate increased by 33%, the feed factor decreased by 20%, and the specific growth rate increased by 17%.

Embodiment 3

[0030] Feed was formulated according to the formula shown in Table 3, and the Litopenaeus vannamei of 0.48g was raised for 56 days, and the weight gain rate of Litopenaeus vannamei of formula 2 (adding lysine) was 190%, the feed coefficient was 2.15, and the specific growth rate was 2.47. Compared with the control formula 1 (without adding lysine), the weight gain rate increased by 37%, the feed factor decreased by 31%, and the specific growth rate increased by 22%.

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Abstract

The invention discloses a feed for litopenaeus vannamei, which comprises the following nutrition compositions by mass percent: 25-35% of proteins, 4-9% of fat, 7-12% of ash contents, 40-55% of carbohydrates and 3-11% of water. The feed can meet the nutrient requirement of litopenaeus vannamei for best growth, and effectively solves the traditional problems of high protein level of a compound feedand severe environmental pollution in the process of culturing litopenaeus vannamei; the industrial profit is increased, and the pollution and the damage to a water environment in the process of culturing are reduced; and the sustainable development of litopenaeus vannamei culturing industry is realized.

Description

technical field [0001] The invention relates to the field of prawn feed, in particular to a feed for Litopenaeus vannamei with low protein and balanced amino acid patterns. Background technique [0002] Litopenaeus vannamei is an important marine and brackish water cultured shrimp in my country. Because of its delicious meat, high nutritional value and large economic benefits, it has broad market prospects. However, as the prices of global energy and food resources continue to soar in recent years, the high-density and intensive farming of Litopenaeus vannamei has been severely restricted. On the one hand, it is because the fishmeal content in the current feed is too high, resulting in high farming costs and low profits; on the other hand, because the protein content in the feed is too high, the ammonia nitrogen and phosphorus content discharged into the breeding water exceeds the standard, resulting in huge damage to the water environment. Pollution and destruction are no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K1/10A23K1/14A23K1/175A23K1/18
Inventor 刘永坚田丽霞乐贻荣怀明燕邓四喜
Owner SUN YAT SEN UNIV
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