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A crossbreeding method of Erythtoculer ilishaefornis and megajobrama amblycephala

A cross-breeding technology for red bream and cross-breeding, which is applied in the fields of medical science, climate change adaptation, animal delivery, etc., can solve the problem of meat quality decline, and achieve the effect of tender meat, simple method and low breeding cost

Active Publication Date: 2009-03-04
ZHEJIANG INST OF FRESH WATER FISHERIES
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Problems solved by technology

However, this fish is a small fish, and the general market size is 250-500 grams. The meat quality of fresh fish is obviously reduced after freezing.

Method used

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  • A crossbreeding method of Erythtoculer ilishaefornis and megajobrama amblycephala
  • A crossbreeding method of Erythtoculer ilishaefornis and megajobrama amblycephala

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with specific embodiments.

[0026] 1. Parental selection

[0027] Choose winter and spring, and select mature and healthy wild red bream and group head bream as parents respectively. For wild red bream, select individuals of 3-4 years old with a weight of 2.5kg or more; age individuals.

[0028] 2. Parental intensive cultivation

[0029] Under natural conditions, the gonad development of the bream is earlier than that of the red bream. Therefore, in order to ensure the synchronization of the gonad development of the two fishes and the smooth cross breeding, it is necessary to artificially regulate the gonad development of the two fishes.

[0030] a) Intensive cultivation of broodstock of the cocked-mouthed red bream: cultivated in a special pond with an area of ​​3-5 acres, the bottom of the pond is flat and without mud, and the water depth is 1.2-1.5 meters. It is convenient to enter and drain, and...

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Abstract

The invention relates to a method for crossing and breeding red Po and john dory. Wherein, it is characterized in that: in winter and spring, selecting adult and healthy wide ones as parent; breeding the parent; at later may and middle June, ejecting odinagogues HCG and LRH-A2 into parents; and artificially seminating while the ratio between female and male is 1:3, and cultivating the zygote in cultivation cylinder or channel. The invention has low cost and easy transportation.

Description

technical field [0001] The invention belongs to the technical field of fish cross-breeding methods, in particular to a method for cross-breeding red bream and bream. Background technique [0002] Erythroculter ilishaeformis, commonly known as white stripes and white fish, belongs to Cyprinidae, Erythroculter subfamily, Erythroculter genus, and is distributed in all major water systems in my country. The fish is large in size, fast in growth, wide in temperature range, white and delicate in meat quality, and delicious in taste. Even if it is chilled fish, the quality will not be affected. It is a rare and precious freshwater fish that is deeply loved by consumers. With the maturation of artificial breeding, seed cultivation and various breeding methods, the red crawfish has been cultivated on a large scale across the country in recent years, and has gradually been industrialized. However, due to the late breeding season of the red catfish, the supply of seedlings is from Jun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/00A01K61/00A61D19/00
CPCY02A40/81
Inventor 顾志敏陈立侨贾永义黄鲜明朱俊杰杨元杰
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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