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Hybridization method and compound feed additive of female yellow catfish/jiang yellow catfish and male yellow catfish

A technology of pelturotus vacheri and compound feed, which is applied in animal feed, animal feed, fish farming, etc., can solve the problems of large parental death, inability to reuse, and increased cost of hybridization, and achieve small parental death, Improves antioxidant capacity and immune defense, and maintains the health of broodstock

Active Publication Date: 2018-01-19
眉山市人和渔业专业合作社
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the fertilization method is mainly artificial insemination, which leads to the male yellow catfish having to be killed to obtain the testes. Although the use of this method, although the spawning time is uniform and the seedlings emerge neatly, the death rate of the parents is very large, which cannot Repeated use greatly increases the cost of hybridization

Method used

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  • Hybridization method and compound feed additive of female yellow catfish/jiang yellow catfish and male yellow catfish
  • Hybridization method and compound feed additive of female yellow catfish/jiang yellow catfish and male yellow catfish
  • Hybridization method and compound feed additive of female yellow catfish/jiang yellow catfish and male yellow catfish

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Embodiment 1

[0034] This embodiment provides a kind of hybridization method of female yellow catfish / jiang yellow catfish and male yellow catfish, the hybridization method of this female yellow catfish / jiang yellow catfish and male yellow catfish is specifically completed through the following steps:

[0035] 1) Parental cultivation: The female yellow catfish / Jianghuang catfish and the male yellow catfish are domesticated temporarily to reach the parent fish standard.

[0036] The above-mentioned parent fishes (ie, female yellow catfish / jianghuang catfish and male yellow catfish) can come from wild catches or markets, and are not limited here.

[0037] Among them, during the domestication process, the female yellow catfish / jianghuang catfish and the male yellow catfish were fed with parental diets, and the parental diets included basic feed and compound feed additives. The compound feed additives contained chitin, dandelion and curcumin. Exemplarily, during the domestication process, the f...

Embodiment 2

[0053] The present embodiment provides a kind of preparation method that contains the compound feed additive of chitin, dandelion, curcumin, and this preparation method comprises:

[0054] 1) Pulverize the raw materials (chitin, dandelion, curcumin, corn flour, yeast) in the compound feed additive formula, pass through a 80-mesh standard sieve, and set aside;

[0055] 2) According to the recipe, weigh 20g of chitin, 20g of dandelion, 16g of curcumin, 694g of corn flour, and 250g of yeast for later use;

[0056] 3) Add chitin, dandelion, curcumin, corn flour, and yeast to a small stainless steel mixer (produced by Zhongnan Pharmaceutical Machinery) for mixing. The mixing uniformity reaches more than 95%, and the coefficient of variation is less than or equal to 5%. The compound feed additive is prepared .

[0057] The compound feed additive is used for mixing with basic feed to prepare parent feed. Exemplarily, the addition amount of the compound feed additive in the parental...

Embodiment 3

[0059] The present embodiment provides a kind of preparation method that contains the compound feed additive of chitin, dandelion, curcumin, and this preparation method comprises:

[0060] 1) Pulverize the raw materials (chitin, dandelion, curcumin, starch, fish meal, flour) in the compound feed additive formula, pass through an 80-mesh standard sieve, and set aside;

[0061] 2) Weigh 40g of chitin, 30g of dandelion, 20g of curcumin, 500g of starch, 210g of fish meal, and 200g of flour according to the recipe respectively;

[0062] 3) Add chitin, dandelion, curcumin, starch, fish meal, and flour to a small stainless steel mixer (manufactured by Zhongnan Pharmaceutical Machinery) for mixing. The mixing uniformity reaches more than 95%, and the coefficient of variation is less than or equal to 5%. Feed additives.

[0063] The compound feed additive is used for mixing with basic feed to prepare parent feed. Exemplarily, the addition amount of the compound feed additive in the p...

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Abstract

The invention discloses a crossing method for female pelteobagrus fulvidraco and male pelteobagrus vachelli and relates to the technical field of cross breeding of freshwater fishes. According to the crossing method, the disease rate of fish fries can be lowered, and the quality of the fish fries can be improved while the cost is reduced. The crossing method for the female pelteobagrus fulvidraco and the male pelteobagrus vachelli comprises the steps: (1) carrying out parent culture: carrying out temporary-culture acclimatization on the female pelteobagrus fulvidraco and the male pelteobagrus vachelli until the female pelteobagrus fulvidraco and the male pelteobagrus vachelli reach parent fish standards, and separately feeding parent feed to the female pelteobagrus fulvidraco and the male pelteobagrus vachelli during acclimatization, wherein the parent feed comprises basal feed and a compounded feed additive, and the compounded feed additive contains chitin, taraxacum mongolicum and curcumin; (2) carrying out artificial inducement for spawning: adopting two-injection injecting, wherein the time interval for two injections is 10h; (3) carrying out natural fertilization; and (4) carrying out artificial hatching: taking out fertilized eggs, and hatching the fertilized eggs in a cement pit, wherein water in the cement pit is underground water. The crossing method is used for achieving the crossing of the female pelteobagrus fulvidraco and the male pelteobagrus vachelli.

Description

technical field [0001] The invention belongs to the technical field of crossbreeding of freshwater fish, and in particular relates to a hybridization method of female yellow catfish / jiang yellow catfish and male yellow catfish. Background technique [0002] Yellow catfish and yellow catfish belong to the same genus and belong to the more important bottom small economic fishes in my country. Yellow catfish is suitable for farming in ponds, but it is smaller and grows slower. Yellow catfish, also known as Jianghuang catfish, is large and grows rapidly, but its low oxygen tolerance and stress resistance are poor, so it is difficult to be suitable for pond culture. At present, through the crossbreeding and selective breeding of yellow catfish and yellow catfish in China, a new species of yellow catfish that is suitable for pond farming, grows faster, and is larger is being cultivated. [0003] In the prior art, the fertilization method is mainly artificial insemination, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/30A23K20/132A23K20/179A23K10/22A23K10/18A23K20/163A23K20/147A23K10/20A23K20/174A23K20/26A23K10/37
CPCA01K61/00Y02A40/81Y02A40/818Y02P60/87
Inventor 冷泽明龚华祥张路董永生刘国均
Owner 眉山市人和渔业专业合作社
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