Method for adjusting breeding cycle of schizothorax waltoni regan

A schizothorax and female technology, applied in the field of aquaculture, can solve the problems of sharp decline in Lhasa schizothorax population, slow growth, environmental pollution, etc., and achieve the effect of improving reproduction speed and breeding efficiency.

Inactive Publication Date: 2020-11-13
SOUTHWEST UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to slow growth of Lhasa Schizothorax, overfishing, construction of water conservancy projects, biological invasion, environmental pollution and other reasons, the current population of Lhasa Schizothorax has declined sharply

Method used

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  • Method for adjusting breeding cycle of schizothorax waltoni regan

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Embodiment 1

[0046] A method for adjusting the reproductive cycle of Lhasa Schizothorax, comprising the steps:

[0047] (1) The female parent fish is selected more than 11 years old, the body weight is 750-900g, and the female Lhasa Schizothorax is 42-55cm in length. The male broodstock is more than 10 years old, with a body weight of 550-900g and a body length of 30-55cm, and the female broodstock and male broodstock are placed in a water temperature of 12-15°C and dissolved oxygen. Cultivate separately in an environment greater than or equal to 6.0mg / L;

[0048] (2) During the described cultivation process, feed the induced labor feed to the female broodstock and the male broodstock respectively for 60 days to promote the maturation of gonads;

[0049] (3) The female broodstock is mixed with the male broodstock, and the oxytocin hormone is injected respectively, and the eggs and sperm that flow out are fertilized by dry insemination;

[0050] (4) After the fish eggs absorb water and ex...

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Abstract

The invention provides a method for adjusting the breeding cycle of schizothorax waltoni regan. The method comprises the following steps: (1) selecting female schizothorax waltoni regan with the age of 11 or above, the weight of 750-900 g and body length of 42-55 cm as female parent fish, selecting male schizothorax waltoni regan with the age of 10 or above, the weight of 550-900 g and body lengthof 30-55 cm as female parent fish, and separately breeding the female parent fish and the male parent fish in an environment at the water temperature of 10-15 DEG C and dissolved oxygen larger than or equal to 6.0 mg/L; and (2) in the breeding process, feeding the female parent fish and the male parent fish with spawning induction feed every day for 30-60 days to promote gonads to develop to be mature. According to the method for adjusting the breeding cycle of the schizothorax waltoni regan, firstly, the age, weight and body length of breeding parent fish are screened, the quality of the breeding parent fish is improved preliminarily, then, in cooperation with the effects of the spawning induction feed and spawning induction harmonic, the spawning effect that spawning is realized each year is realized, and the breeding speed and the culture benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for adjusting the reproductive cycle of Lhasa Schizothorax. Background technique [0002] Lhasa Schizothorax waltoni Regan belongs to the subfamily Schizothoracinae and the genus Schizothorax. It is only distributed in the middle and upper reaches of the Yarlung Zangbo River in my country and is an endemic species in my country. Lhasa Schizothorax, as an important economic fish in Tibet, needs to be researched and protected because of its relatively scarce resources. [0003] Lhasa Schizothorax is a unique fish in the Yarlung Zangbo River, and it is also a precious resource in our country. However, due to slow growth of Lhasa Schizothorax, overfishing, construction of water conservancy projects, biological invasion, environmental pollution and other reasons, the population of Lhasa Schizothorax has decreased sharply. Therefore, in order to protect, deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17A23K50/80A23K10/30A61K36/752A61K36/79A61K38/09A61K38/24A61P15/08A61K31/454
CPCA61K31/454A61K36/232A61K36/344A61K36/484A61K36/489A61K36/533A61K36/57A61K36/752A61K36/79A61K38/09A61K38/24A23K10/30A23K50/80A01K61/10A01K61/17A61P15/08A61K2300/00Y02P60/87Y02A40/81Y02A40/818
Inventor 朱成科王建杨成年阳龙江韩璐璐唐征县彭小倩吕光俊
Owner SOUTHWEST UNIVERSITY
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