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Method for artificial breeding of oncorhynchus mykiss

A technology of artificial breeding and artificial hatching, applied in food processing, climate change adaptation, animal feed, etc., can solve the problems of reducing the hatching rate of rainbow trout fertilized eggs and the survival rate of fry cultivation, and achieve the goal of improving the hatching rate and the survival rate of fry cultivation. Effect

Inactive Publication Date: 2019-12-27
NANNING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] But, the breeding method in the patent document disclosed above and the prior art document can not create optimal ecological condition for rainbow trout, has reduced the fertilized egg hatching rate of rainbow trout and the survival rate of fry cultivation

Method used

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  • Method for artificial breeding of oncorhynchus mykiss
  • Method for artificial breeding of oncorhynchus mykiss

Examples

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Embodiment 1

[0036] A method for artificial breeding of rainbow trout, comprising the steps of introducing, domesticating and cultivating broodstock, artificial insemination, artificial hatching, cultivating fry, and daily management steps, wherein parent fish feed and parent fish nutrient powder are fed during the process of broodstock introduction, domestication and cultivation, and broodstock nutrient powder is fed during fry cultivation. Feed fish fry bait and fish fry special compound feed, and use pest bait to prevent and control diseases and insect pests in the daily management process, including the following steps:

[0037] (1) Introduction, domestication and cultivation of broodstock: select vigorous, disease-free, and vigorous rainbow trout as broodstock, with a body weight of 1.0 to 1.2 kg, and 3 to 4-year-old broodstock to carry out annual breeding from spring, and the ratio of male to female == 3-4:1, before breeding, carry out intensive cultivation, feed rainbow trout broodst...

Embodiment 2

[0053] The difference from Example 1 is that the broodstock feed is made of the following raw materials in parts by weight: 25 parts of wild fish, 18 parts of silkworm chrysalis, 17 parts of loach, 13 parts of wheat flour, 8 parts of egg yolk, 15 parts of sweet potato skin, salt 3 parts, 13 parts of Chinese herbal medicinal liquid. When preparing, first send wild fish, silkworm chrysalis, loach, wheat flour and sweet potato skin into a superfine pulverizer to pulverize into 18 μm powder, and then mix them evenly. Other conditions remain unchanged.

Embodiment 3

[0055]The difference from Example 1 is that the fry bait is made of the following raw materials in parts by weight: 15 parts of egg yolk, 35 parts of milk powder, 35 parts of fish meal, 30 parts of Artemia nauplii, 30 parts of red worm, and 25 parts of loach , 25 parts of dried shrimp, 20 parts of wheat flour, 20 parts of fried soybean powder, 25 parts of peanut bran, and 15 parts of Chinese herbal medicine liquid. When preparing, first send the raw materials other than egg yolk, milk powder, and Chinese herbal medicine liquid into a grinder and crush them until they pass through a 550-mesh sieve. , and then mix all the raw materials evenly, and send them to the granulator to make granules with a diameter of 0.5mm, and the other conditions remain unchanged.

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Abstract

The invention discloses a method for artificial breeding of oncorhynchus mykiss. The method includes steps of parent fish introduction, domestication and culture, artificial insemination, artificial hatching, fry rearing, daily management and the like. In a process of parent fish introduction, domestication and culture, parent fish feed and parent fish nutrition powder are adopted for feeding; infry rearing, fry bait and special compound feed for fry are adopted for feeding; in a process of daily management, medicinal bait is adopted for disease and pest prevention and control. According to fish physiological principles, by researches of oncorhynchus mykiss fertilized egg development, embryo hatching and fry rearing and requirements of oncorhynchus mykiss on water quality and bait, optimal ecological conditions are created for health growth of oncorhynchus mykiss, the fertilized egg hatching rate and the fry rearing survival rate are increased, and a series of research results relatedto artificial breeding of oncorhynchus mykiss are formed. The method is significant to scale development and maturation of artificial breeding of oncorhynchus mykiss and the artificial breeding industry in China.

Description

technical field [0001] The invention belongs to the technical field, in particular to a method for artificial breeding of rainbow trout. Background technique [0002] Rainbow trout (Oncorhynchusmykiss), Salmoniformes, Salmonidae, Pacific salmon genus, commonly known as waterfall fish, seven-color fish; there is a wide and bright purple-red rainbow belt along the middle of the side line on the side of the body, so it is called rainbow trout, half or all of the body side is covered with Small black spot; there are three types of land-sealed, lake-marsh, and sea-falling types, and the main breeding type is land-sealed; it likes to inhabit waters with clear water, low water temperature, more dissolved oxygen, and abundant flow; native to North America In the mountains and streams of the Pacific coast and Alaska, USA, it has been introduced to many countries from the west of North America. Rainbow trout is cultivated; its meat is tender, thick and thornless, delicious, and rich ...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17A23K50/80A23K10/22A23K10/20A23K10/30A23K20/22A23K10/37A23K10/26
CPCA23K10/20A23K10/22A23K10/26A23K10/30A23K10/37A23K20/22A23K50/80A01K61/10A01K61/17Y02P60/87Y02A40/81Y02A40/818
Inventor 陈涛
Owner NANNING UNIV
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