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High-low nutrition bait repetitive re-feeding-based grouper culturing technology

A bait and technology technology, applied in the field of grouper culture, can solve the problems of low nutrient absorption rate and high bait input, and achieve the effects of high survival rate, fast growth rate, and high digestion and absorption rate.

Inactive Publication Date: 2015-05-27
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of grouper culture technology that can save grouper culture bait input, improve culture benefit, reduce water body environmental pollution, this technology can effectively solve the problem of high bait input product in current grouper culture process. , the problem of low nutrient absorption rate, and reduce the pollution and damage to the water environment during the breeding process, and realize the healthy and sustainable development of the grouper farming industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one: 45% protein bait-40% protein bait cycle (morning, evening cycle, daily cycle or weekly cycle) was used to feed 15 g grouper juveniles for 60 days, and the bait protein input was 450 g / kg fish body weight gain. The weight rate is 600%, the protein efficiency is 2.0, and the protein retention rate is 44%. Compared with feeding with a single high-protein bait, the bait protein input is reduced by 4% (accounting for the dry weight of the bait), the weight gain rate is increased by 10%, and the protein efficiency is increased by 22%. %, the protein retention rate increased by 12%, the ammonia nitrogen emission rate decreased by 40%, the survival rate increased by 12%, and the apparent digestibility of phosphorus increased by 38%.

Embodiment 2

[0017] Embodiment two: Using 10% fat bait-5% fat bait cycle (morning, evening cycle, daily cycle or weekly cycle) to feed 18 g grouper juveniles for 60 days, the bait fat input was 100 g / kg fish body weight gain, gain The weight rate is 620%, and the incidence of fatty liver is less than 5%. Compared with feeding with a single high-fat bait, the fat input of the bait is reduced by 5% (accounting for the dry weight of the bait), the weight gain rate is increased by 12%, and the incidence of fatty liver is reduced by 40%. %, the survival rate increased by 14%.

Embodiment 3

[0018] Embodiment three: 1% multivitamin bait-0.5% multivitamin bait cycle (morning, evening cycle, daily cycle or weekly cycle) was used to feed 21 g young grouper fish for 60 days, and the bait compound vitamin input was 6g / kg fish growth Compared with feeding with a single high-complex vitamin bait, the input of multivitamins in the bait was reduced by 0.3% (accounting for the dry weight of the bait), and the weight gain rate increased by 18%.

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PUM

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Abstract

The invention relates to a grouper culturing technology capable of saving grouper culturing bait input, improving culturing benefits and reducing pollution to a water environment, and discloses a high-low nutrition bait repetitive re-feeding-based grouper culturing technology. Adopted high-low nutrition bait repetitive re-feeding comprises high-protein bait-low-protein bait repetitive re-feeding, high-fat bait-low-fat bait repetitive re-feeding, high-decavitamin bait-low-decavitamin bait repetitive re-feeding and high-composite mineral element bait-low-composite mineral element bait repetitive re-feeding, and adopted repetitive re-feeding cycles comprise early and night cycles, a day cycle and a week cycle. According to the technology, the problems of high bait input and low nutrition absorption rate in a conventional grouper culturing process can be effectively solved, pollution and damage to the water environment in a culturing process can be reduced, and the grouper culturing industry can be healthily and sustainably developed.

Description

technical field [0001] The invention relates to a grouper breeding technology capable of saving grouper breeding bait inputs, improving breeding benefits and reducing water environmental pollution. Background technique [0002] Grouper is an important and precious seawater cultured fish in my country. It has a broad market prospect because of its fast growth, delicious meat, high nutritional value and large economic benefits. However, at present, grouper farming adopts a single, high-nutrient bait farming model, with high bait inputs and low nutrient absorption rate. This farming model not only increases the cost of grouper farming bait and pollutes the water environment, but also It is easy to cause diseases and brings risks to grouper farming. Therefore, it is urgent to research and develop the grouper culture technology that can save grouper culture bait inputs, improve culture efficiency, and reduce water body environmental pollution. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01K61/80
CPCA01K61/00Y02A40/81
Inventor 不公告发明人
Owner HAINAN UNIVERSITY
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