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An ecological feed for industrialized culture of Penaeus vannamei

A white prawn, industrialized technology, applied in animal feed, animal feed, food processing, etc., can solve the problems of lack of natural bait, excessive nitrogen and phosphorus discharge, low fishmeal content, etc., to improve survival rate and economic benefits, reduce Ammonia nitrogen emission, effect of reducing feed cost

Active Publication Date: 2020-12-01
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the protein content and fish meal in the existing Penaeus vannamei feed are too high, which causes the cost of cultivation to increase, the discharge of nitrogen and phosphorus exceeds the standard, causes relatively large pollution of the water body environment and lacks natural bait, and provides a The ecological feed for Penaeus vannamei is industrialized. The feed contains low levels of protein, low phosphorus, and low fishmeal content, which reduces feed costs, alleviates pollution to the surrounding environment, and realizes the sustainable growth of Penaeus vannamei aquaculture. sustainable development

Method used

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  • An ecological feed for industrialized culture of Penaeus vannamei
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  • An ecological feed for industrialized culture of Penaeus vannamei

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Experimental program
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Effect test

Embodiment 1

[0033] A kind of industrial culture Penaeus vannamei ecological feed, feed formulated by the formula shown in Table 1 or Table 2, raise the Penaeus vannamei of 3.8g for 6 weeks, and feed the Penaeus vannamei of the experimental group formula (low protein and low phosphorus feed). The weight gain rate of prawns was 212%, the feed efficiency was 45%, and the specific growth rate was 2.28. Compared with the control formula (high protein level), there was no significant difference in weight gain rate, feed efficiency, and specific growth rate, but the ammonia nitrogen emission was reduced. 19%, phosphorus emissions reduced by 15%.

Embodiment 2

[0035] A kind of industrialized farming Penaeus vannamei ecological feed, the feed formulated by the formula shown in table 3, raised the Penaeus vannamei of 4.2g for 6 weeks, and the weight gain rate of Penaeus vannamei of the experimental formula (adding seaweed powder) was 237%, The feed factor was 1.27 and the specific growth rate was 2.29. Compared with the formula of the control group (without adding seaweed powder), the weight gain rate increased by 22%, the feed factor decreased by 35%, and the specific growth rate increased by 29%. Enzyme, superoxide dismutase, phenoloxidase, lysozyme, glutathione peroxidase activities were significantly higher than the control group (P<0.05, P<0.01), malondialdehyde concentration was significantly lower than the control group (P <0.05, P<0.01).

Embodiment 3

[0037] A kind of industrialized farming Penaeus vannamei ecological feed, by the formulation feed shown in table 3, raises the Penaeus vannamei of 3.9 for 6 weeks, and the Penaeus vannamei of the experimental formula (adding gamma-aminobutyric acid) increases in weight by 215%. , feed factor 1.18, specific growth rate 2.47, compared with the control formula (without adding γ-aminobutyric acid), the weight gain rate increased by 42%, the feed factor decreased by 38%, and the specific growth rate increased by 27%.

[0038] Table 1 Feed composition of Penaeus vannamei (by mass fraction)

[0039]

[0040] Table 2 Penaeus vannamei feed composition (by mass fraction)

[0041]

[0042] Table 3 Feed composition of Penaeus vannamei (by mass fraction)

[0043]

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Abstract

The invention relates to ecological feed for factory-cultivated Penaeus vannamei. The feed comprises, by weight, 60 to 70% of a protein source raw material, 6 to 9% of a fat source raw material, 20 to25% of a carbohydrate raw material, 1.0 to 3.0% of vitamins, 1.0 to 3.0% of a mineral salt, 0.1 to 0.2% of an antioxidant, 0.1 to 0.2% of ecdysone and 0.05 to 0.1% of an anti-stress substance. The ecological feed for factory-cultivated Penaeus vannamei ensures the normal growth of Penaeus vannamei, significantly increases the survival rate and weight gain rate of Penaeus vannamei, improves the anti-stress ability and disease resistance of Penaeus vannamei, solves the serious problems of over high nitrogen and phosphorus content and environmental pollution in Penaeus vannamei cultivation, significantly reduces nitrogen and phosphorus discharge of aquaculture water and has good ecological benefits.

Description

technical field [0001] The invention belongs to the technical field of aquatic product breeding feed, in particular to an ecological feed for industrialized farming of Penaeus vannamei. Background technique [0002] At present, there are three main modes of raising Penaeus vannamei: raising shrimp in outer ponds, raising shrimp in greenhouses and raising shrimp in factory workshops. Compared with the previous two models, shrimp farming in industrial workshops has a higher density and very little natural bait in the water body, which determines that the nutritional requirements of industrial farming of Penaeus vannamei are quite different. The targeted development of industrial farming in South America Whiteleg shrimp feed has important practical significance. In addition, the current feed for Penaeus vannamei has high protein and phosphorus content, and the digestive system of the shrimp itself is not perfect, resulting in a low digestion and absorption rate of the feed, re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/37A23K10/12A23K20/158A23K20/168A23K10/30A23K20/105A23K20/174A23K20/26A23K20/20A23K20/142A23K20/126
CPCA23K10/12A23K10/22A23K10/30A23K10/37A23K20/105A23K20/126A23K20/142A23K20/158A23K20/168A23K20/174A23K20/20A23K20/26A23K50/80Y02P60/87Y02A40/818
Inventor 袁春营孟阳吴佩佩崔青曼
Owner TIANJIN UNIV OF SCI & TECH