Artificial propagation method of pelteobagrus fulvdraco

A technology of artificial breeding and yellow catfish, applied in the field of freshwater fish farming, can solve the problems of high cost, difficulty in popularization and application, and low yield, and achieve the effects of increased survival rate, high spawning rate, and improved disease resistance rate

Inactive Publication Date: 2011-04-13
杨述奇
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing method of artificial breeding of yellow catfish has problems s

Method used

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  • Artificial propagation method of pelteobagrus fulvdraco

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Embodiment 1

[0031] Embodiment 1 yellow catfish artificial propagation method is:

[0032] (1) Selection of broodstock: Select natural wild II-year-old yellow catfish with strong physique, smooth body surface, complete fin rays, no disease and injury, and sexually mature appearance, and the female fish weighs 75g-100g and the male fish weighs 125g-150g. Adult fish are used as parents, and the ratio of the number of female fish to male fish is 1: 1.1 and put into ponds for special pond cultivation;

[0033] The appearance of the sexually mature parent is that the abdomen of the female fish is full and elastic, and it is held up from the back. From the outside, there are obvious outlines of the ovaries, and the genital pores are red and swollen and slightly protruding; the abdomen of the male fish is flat, and the genital pores are obviously protruding papillary, slightly reddish in color;

[0034] (2) Breeding of broodstock: when the water temperature is above 12c°, artificially feed with ...

Embodiment 2

[0049] In the artificial propagation method of embodiment 2 yellow catfish, the oxytocin drug selects luteinizing hormone analog (LHRH-A 2 ), chorionic gonadotropin (HCG) and dioconone (DOM), the injection dose is LRH-A per kg body weight of broodstock 2 8 μg, HCG 400IU, DOM 4mg; other methods are the same as in Example 1.

Embodiment 3

[0050] In the artificial reproduction method of embodiment 3 yellow catfish, the oxytocin drug selects luteinizing hormone analog (LHRH-A 2 ), chorionic gonadotropin (HCG) and dioconone (DOM), the injection dose is LRH-A per kg body weight of broodstock 2 10 μg, HCG 400IU, DOM 5mg; other methods are the same as in Example 1.

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Abstract

The invention relates to an artificial propagation method of pelteobagrus fulvdraco, comprising the steps of selecting and rearing parent fish, artificially hastening parturition and hatching fish fry. The artificial hastening parturition comprises the optimized technique of parturition hastening time, setting of fish nest, parturition hastening medicine and dose and secondary injection of medicine; and the fish fry hatching comprises the design of a hatching tank, the optimized hatching technique, and the like. The method has high spawning rate, parturition hastening rate and hatching rate, can save manpower, materials and money, ensures batch production of fish fry in a planed way to meet the requirement of fish fry for different users, ensures that the production and development are unified and further avoids serious ecological damage resulting from killing a large number of male parents.

Description

technical field [0001] The invention relates to a method for cultivating freshwater fish, and further refers to a method for artificial propagation of yellow catfish. Background technique [0002] Yellow catfish belongs to the order Siluriformes (siluriformes), the family Bagridae (Bagridae), and the genus Pseudobagrus (Pseudobagrus) in taxonomy. Yellow catfish is a benthic fish with strong adaptability to the ecological environment. It is widely distributed in fresh water bodies in my country and is an important economic fish in rivers and lakes in my country. Because of its rich amino acid content, tender meat, delicious taste, rich nutrition, and no intermuscular thorns, the yellow catfish is a nutritious delicacy suitable for all ages; in addition, the fish is suitable for intensive high-yield farming in ponds, extensive culture in large lakes, and cage culture , and has excellent breeding traits, has a very broad market prospect, and is known as the star of aquatic pro...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 王国平付建平蔡正才杨术平贾磊刘勇祝国芳
Owner 杨述奇
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