Artificial breeding method of giant trevally

An artificial breeding and ronin technology, applied in the field of ronin trevally breeding, can solve the problems of low breeding rate and low survival rate of fry, and achieve the effects of high breeding efficiency, improving survival rate of larvae, and high spawning quantity.

Active Publication Date: 2019-05-28
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the breeding rate of roman trevally is low, and the survival rate of its fry is not high, so there is

Method used

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  • Artificial breeding method of giant trevally

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Experimental program
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Effect test

Embodiment 1

[0027] A method for artificial breeding of roman trevally, comprising the following steps:

[0028] S1. Parent selection: choose healthy female and male trevally above 3 years old as parents, and the ratio of male to female is 1:0.5;

[0029] S2. Intensification of parental cultivation:

[0030] (1) Cultivation environment: select the sea area with unobstructed tide and water depth of 5-50m to be used for the cage cultivation of broodstock, the size of the cage is 5m*5m*4m, and the mesh size of the cage is 60 orders. Density 1 tail / m 3 ;

[0031] (2) Feeding feed A and feed B every day, feeding feed A every night, and feeding feed B in the morning,

[0032] The feed A includes the following components in parts by weight: 2 parts of mullet, 4 parts of eel, 5 parts of sardine, 2 parts of pippi shrimp, 4 parts of crab, 3 parts of snail meat, 5 parts of flower snail meat, 5 parts of escargot 20 parts of meat, 1 part of oyster, 5 parts of loach, the feeding amount of the feed A...

Embodiment 2

[0037] A method for artificial breeding of roman trevally, comprising the following steps:

[0038] S1. Parent selection: choose healthy scads over 3 years old as parents, and the ratio of male to female is 1:0.5;

[0039] S2. Intensification of parental cultivation:

[0040] (1) Cultivation environment: select the sea area with unobstructed tide and water depth of 5-50m to be used for the cage cultivation of broodstock, the size of the cage is 5m*5m*4m, and the mesh size of the cage is 60 orders. Density 3 tails / m 3 ;

[0041] (2) Feed A and feed B are fed every day, feed A is fed every night, and feed B is fed in the morning. The feed A includes the following components in parts by weight: 5 parts of mullet, 8 parts of eel, 10 parts of sardines, 6 parts of pippi shrimp, 7 parts of crab, 9 parts of snail meat, 10 parts of flower snail meat, 30 parts of field snail meat, 3 parts of oysters, and 8 parts of loach. 4~7%;

[0042] The feed B is made into block feed, and compr...

Embodiment 3

[0046] A method for artificial breeding of roman trevally, comprising the following steps:

[0047] S1. Parent selection: choose healthy scads over 3 years old as parents, and the ratio of male to female is 1:0.5;

[0048] S2. Intensification of parental cultivation:

[0049] (1) Cultivation environment: select the sea area with unobstructed tide and water depth of 5-50m to be used for the cage cultivation of broodstock, the size of the cage is 5m*5m*4m, and the mesh size of the cage is 60 orders. Density 2 tails / m 3 ;

[0050] (2) Feed A and feed B are fed every day, feed A is fed every night, and feed B is fed in the morning. The feed A includes the following components in parts by weight: 3 parts of mullet, 7 parts of eel, 8 parts of sardines, 4 parts of pippi shrimp, 5 parts of crab, 6 parts of snail meat, 8 parts of flower snail meat, 25 parts of field snail meat, 2 parts of oysters, and 7 parts of loach. 4~7%;

[0051] The feed B is made into block feed, and compris...

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Abstract

The invention provides an artificial breeding method of giant trevally. The artificial breeding method of giant trevally comprises the following steps that healthy female and male giant trevally withthe age more than three are selected as parents; net cage breeding is selected, and the female and male giant trevally are fed with fodder A and fodder B every day; when sexual maturity of parent fishis achieved, natural spawning and fertilization are carried out, fertilized ovum is fished out and placed into a breeding pool for hatching, pool water is inflated slightly, and larva fish is obtained; 10000-12000 thousand/mL dunaliella salina, 3000-6000 thousand/mL chaetoceros and 7000-9000 thousand/mL chlorella are inoculated, and the larva fish is bred; and the female and male giant trevally are fed with fodder C every day five days later, and fish fry is obtained after breeding for 20-30 days. By adopting the artificial breeding method of giant trevally, the oviposition quantity of the parent fish is high, the fertilization rate can reach more than 98%, the hatching rate of the fertilized ovum reaches more than 94%, the quality of the fertilized ovum is high, the survival rate of breeding the larva fish is high, the fish fry yield of the giant trevally is large, the breeding efficiency is high, and the breeding quality is good.

Description

technical field [0001] The invention relates to the technical field of trevally breeding, in particular to an artificial breeding method of trevally. Background technique [0002] Ronin trevally, English name: Giant trevally, Latin scientific name: Caranx ignobilis ( 1775), aliases: Niugang trevally, GT, precious trevally, silver giant trevally, and Niugang trevally. Ronin trevally is a marine fish belonging to the genus Trevally in the family Trevalidae. The largest carnivorous fish in the trevally family, it can jump out of the water to hunt seabirds. It is a fish of the genus Trevally in the family Trevally, commonly known as Baimiannongyu. Distributed in the Indian Ocean, Red Sea, east to Japan, Australia, South China Sea, Taiwan Strait and other waters. The body of Ronin trevally is oval, with flat sides and high. As it grows, the body gradually extends backwards. The back of the head is strongly curved, while the head and abdomen are almost straight. The adipose...

Claims

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Application Information

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IPC IPC(8): A01K61/10A23K10/20A23K10/22A23K10/30A23K10/37A23K20/174A23K50/80
CPCY02P60/87Y02A40/81Y02A40/818
Inventor 蔡春有蔡有森蔡四川蔡建顺李伟张国庆蔡惠明陈猛蔡金泉黄春仁
Owner HAINAN CHENHAI AQUATIC CO LTD
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