A kind of crossbreeding method of spotted catfish and catfish

A technology of spotted catfish and catfish, applied in the fields of application, climate change adaptation, fish farming, etc.

Active Publication Date: 2021-08-17
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the crossbreeding of spotted catfish and catfish

Method used

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  • A kind of crossbreeding method of spotted catfish and catfish
  • A kind of crossbreeding method of spotted catfish and catfish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The spotted catfish was used as the female parent, and the selection criteria were: the spotted catfish had a swollen and soft abdomen, and the genital opening was reddish. The weights of the three-tailed catfish used for dry artificial insemination were 345g, 360g and 375g, respectively.

[0042] The male catfish is used as the male parent, and the selection criteria are as follows: the male fish has a strong and plump appearance, is full of luster, has a reddish reproductive process, and has reached the age of sexual maturity. The body weight of a catfish used for dry artificial insemination is 1400g.

[0043] Get a tail body weight and be the pituitary gland of 1080g Rusta wild carp, make 1.08ml pituitary gland solution with 0.9% sodium chloride solution.

[0044] 0.1035ml, 0.108ml and 0.1125ml of Rusta rohu pituitary solution were respectively injected for the first time to the spotted catfish whose body weight was 345g, 360g and 375g respectively, and 0.2415ml, 0.2...

Embodiment 2

[0050] The spotted catfish was used as the female parent, and the selection criteria were as follows: the spotted catfish had a swollen and soft abdomen, reddish genital pores, and the body weights of the three-tailed catfish used for dry artificial insemination were 360g, 355g and 365g, respectively.

[0051] The male catfish is used as the male parent, and the selection criteria are as follows: the male fish has a strong and plump appearance, is full of luster, has a reddish reproductive process, and has reached the age of sexual maturity. A catfish catfish used for dry artificial insemination weighs 1500g.

[0052] Get a tail body weight and be the pituitary gland of 1080g Rusta wild carp, make 1.08ml pituitary gland solution with 0.9% sodium chloride solution.

[0053] For the first time, 0.108ml, 0.1065ml and 0.1095ml of the pituitary solution of rohu lusta were respectively injected to the spotted catfish whose body weight was 360g, 355g and 365g, respectively, and 0.252...

Embodiment 3

[0059] The spotted catfish was used as the female parent, and the selection criteria were: the spotted catfish's abdomen was enlarged, soft, and the genital pores were reddish. The weights of the three-tailed catfish used for dry artificial insemination were 370g, 380g and 360g, respectively.

[0060] The male catfish is used as the male parent, and the selection criteria are as follows: the male fish has a strong and plump appearance, is full of luster, has a reddish reproductive process, and has reached the age of sexual maturity. A catfish catfish used for dry artificial insemination weighs 1600g.

[0061] Get a tail body weight and be the pituitary gland of 1110g Rusta wild carp, make 1.11ml pituitary gland solution with 0.9% sodium chloride solution.

[0062] For the first time, 0.111ml, 0.114ml and 0.108ml of the pituitary solution of rohu lusta were injected respectively to the spotted catfish with the body weight of 370g, 380g and 360g, respectively, and 0.259ml, 0.266...

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Abstract

The invention provides a hybrid breeding method of spotted catfish and catfish, which belongs to the technical field of catfish breeding. The invention applies oxytocin drugs to spotted catfish, 5.5 to 6.5 hours after the first application, and then administers the oxytocin drugs again. After 7.5 to 8.5 hours, artificial insemination is carried out to realize the hybrid breeding of spotted catfish and catfish; the oxytocin drug includes one or more of fish pituitary gland, luteinizing hormone releasing hormone and dioconone; The spotted catfish is the female parent, and the described catfish is the male parent. After the crossbreeding of spotted catfish and catfish in the present invention, the average fertilization rate is 77.07% or 80.57%, the average hatching rate is 32.48% or 31%, and the average seedling emergence is 24960 or 24096.

Description

technical field [0001] The invention belongs to the technical field of catfish breeding, and in particular relates to a hybrid breeding method of spotted catfish and catfish. Background technique [0002] Cross breeding is a classic breeding method. The hybridization of different types of parents can combine the excellent genes controlling different traits of the parents, or accumulate different minor genes controlling the same trait in the parents to produce a type that surpasses the parents in this trait. In fishery, the use of heterosis has become an important way to increase fishery output. [0003] Spot catfish Clarias macrocephalus is mainly distributed in Thailand to Vietnam. It is an extremely rare fish in Thailand. It has the characteristics of bright color, tender meat and delicious taste. It was introduced from Thailand by the Pearl River Fisheries Research Institute of the Chinese Academy of Fishery Sciences in July 1982. Breeding fish, artificial breeding and b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 张彤晴唐晟凯李大命殷稼雯谷先坤刘燕山钟立强刘小维朱凛
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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