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Highly efficient environment protective feed stuff for rockfishes baby fish

A compound feed and grouper technology, which is applied in animal feed, animal feed, climate change adaptation, etc., can solve problems such as nutritional imbalance of compound feed, achieve appropriate content of crystalline amino acids, low ammonia nitrogen emissions, and reduce adverse effects Effect

Inactive Publication Date: 2006-02-08
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-efficiency and environmentally friendly feed for young grouper fish that can improve the growth rate and disease resistance of grouper fish and reduce environmental pollution. The problem of nutritional imbalance, and reduce the pollution and damage to the environment in the breeding process, to achieve the sustainable development of grouper farming

Method used

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  • Highly efficient environment protective feed stuff for rockfishes baby fish

Examples

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Effect test

Embodiment 1

[0018] Example 1: Prepare feed according to formula 1 shown in Table 1. Feed 30.7g juvenile grouper for 70 days, feed coefficient 1.4, specific growth rate (SGR, % / day) 2.25, survival rate 90%, and feed fresh Compared with trash fish, there is no significant difference in growth and feed coefficient, and the survival rate is increased by 20%.

Embodiment 2

[0019] Example 2: Prepare feed according to the formula 2 shown in Table 1, and raise 6.5g grouper juveniles for 70 days, with a feed coefficient of 1.22, a specific growth rate of 2.81, a survival rate of 95%, and an ammonia nitrogen emission of 22mgkg -1 h -1 , Phosphorus apparent digestibility is 75%. Compared with general marine fish compound feed on the market, the specific growth rate is increased by 40%, the feed coefficient is reduced by 30%, and the survival rate is increased by 26%. The apparent digestibility of phosphorus Increased by 20%, ammonia nitrogen emissions are reduced by 30% compared with general marine fish compound feed on the market.

Embodiment 3

[0020] Example 3: Prepare feed according to formula 3 shown in Table 1, and feed 60.2g grouper juveniles for 70 days, with a feed coefficient of 1.5, a specific growth rate of 2.18, a survival rate of 98%, and an ammonia nitrogen emission of 10mgkg -1 h -1 , Phosphorus apparent digestibility is 82%. Compared with the general marine fish compound feed on the market, the specific growth rate is increased by 30%, the feed coefficient is reduced by 20%, the survival rate is increased by 20%, and the apparent digestibility of phosphorus is Increased by 30%, ammonia nitrogen emissions are reduced by 20% compared to general marine fish compound feed on the market.

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Abstract

The invention provides a highly effective and environmental protection compound feed for rockfish comprising the following raw materials (by weight proportions): protein 60-79, fats 5-10, sugar 9.67-22.35, anti-oxidizing agent 0.25-0.5, immunopotentiator 0.1-0.2, composite vitamin 2.6-3 and composite minerals 0.3-0.5.

Description

Technical field [0001] The invention relates to a high-efficiency and environment-friendly compound feed for young grouper, which can increase the growth rate and disease resistance of grouper and reduce environmental pollution. Background technique [0002] Grouper is an important and precious marine aquaculture fish in our country, because of its fast growth, high feed efficiency and great economic benefits, it has a broad market prospect. However, the current large-scale farming of grouper is restricted by two factors. One is that the feed is not fully nutritious. Fresh trash fish is mainly fed, and there is no special grouper compound feed. Fresh trash fish have shortcomings such as unstable supply, difficult storage, unbalanced nutrition and high feed coefficient, which will inevitably cause huge pollution and damage to the environment, which is not conducive to large-scale farming and production of grouper. Second, the disease is serious and the survival rate is low. Due to...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K10/22A23K10/37A23K20/142A23K20/158A23K20/163A23K50/80
CPCY02A40/818Y02P60/87
Inventor 刘永坚陈丹田丽霞罗智梁海鸥王勇
Owner SUN YAT SEN UNIV
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