Method for increasing survival rate of adults of live oreochromis niloticus

A technology for the transportation of Gifu tilapia and live bodies, which is applied in fish farming, climate change adaptation, animal feed, etc. It can solve the problems of low survival rate and difficulty in long-distance long-distance transportation, so as to improve the survival rate, extend the transportation distance, The effect of enhancing economic benefits

Inactive Publication Date: 2014-04-30
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low survival rate and difficulty in long-distance long-distance transportation of adult fish of Gifu tilapia

Method used

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  • Method for increasing survival rate of adults of live oreochromis niloticus
  • Method for increasing survival rate of adults of live oreochromis niloticus

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Embodiment Construction

[0012] A method for improving the survival rate of live transported adult tilapias. The following steps are adopted 8 days before live fish transport.

[0013] 1. Expand the density, concentrate the adult fish to be transported in the cage, and increase the density to twice the previous breeding density. Usually, the breeding density of adult fish is 2.2-3 fish / cubic meter, and it is expanded to 4.5-6 fish / cubic meter.

[0014] 2. Feed feeding, prepare feed with 38% protein level according to the following formula within 8 days before transportation. After grinding the compound Houttuynia granules into powder with a grinder, add 0.6 g of compound Houttuynia powder to 100 g of feed, wherein the compound Houttuynia contains Houttuynia cordata, Scutellaria baicalensis, Radix Radix Isatidis, Forsythia, honeysuckle, etc. Firstly, add the compound Houttuynia cordata powder into water, mix well, and then add it into the feed to ensure that the powder is fully mixed in the feed. Th...

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Abstract

The invention discloses a method for increasing the survival rate of adults of live oreochromis niloticus. The hormone level, the alexin level and the hepatic antioxidant adaptive capacity can be improved within a short time by increasing breeding density and performing tensioning net stress, and nonspecific immunity is improved. The contents of protein, glucose and triglyceride in blood of the oreochromis niloticus can be increased by feeding feedstuff with high protein level of 36%-39% before the oreochromis niloticus is conveyed, and energy reserve is improved. Moreover, 0.5%-0.8% of compound heartleaf houttuynia herb is added in the feedstuff and contains herba houttuyniae, scutellaria baicalensis, radix isatidis, fructus forsythiae, honeysuckle and the like, and the anti-stress capability of the oreochromis niloticus can be improved. In a conveying process, the water temperature is controlled in a range of 19-23 DEG C, the salinity of water is 8%o-12%o, and dissolved oxygen is sufficient. The metabolic activity of the oreochromis niloticus is low, but the immunity of the oreochromis niloticus is high, so that energy loss in the conveying process is reduced, excretion of metabolin is reduced, and the anti-stress capability is improved. After the oreochromis niloticus is treated by using the method, the survival rate of the adults of the live oreochromis niloticus and the live oreochromis niloticus conveying distance are obviously improved during conveyance.

Description

technical field [0001] The invention belongs to the technology of living aquatic animal transportation, and in particular relates to a set of methods capable of improving the survival rate of adult tilapia living transportation. Background technique [0002] Tilapia is a food consumer product in the world, and China's tilapia farming ranks first in the world, with outstanding resource advantages. The large-scale promotion of tilapia farming in China has benefited from three factors. One is the promotion of excellent species of tilapia - the promotion of Gifu tilapia, which overcomes the characteristics of slow growth and low meat yield of tilapia in the past; the second is the full price The promotion of compound feed has reduced the cost of tilapia farming and improved the economic benefits of fishermen; third, the meat nutrition of tilapia has been widely recognized. Tilapia has no intermuscular spines, and there are many edible parts in the whole body. The protein conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18A23K1/14
CPCY02A40/81
Inventor 强俊徐跑何杰李瑞伟朱志祥
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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