Artificial cultivation method for loach larvae

A technology of artificial cultivation and loach, applied in fish farming, application, climate change adaptation, etc., can solve the problems of scarcity of wild loach resources, insufficiency of commodity quantity, and decline in natural water production.

Inactive Publication Date: 2015-01-28
JINGZHOU FUCHENG WUFENG LOACH BREEDING SPECIALIZED COOP
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the adjustment of fishery production structure and the rise of special aquaculture industry, although loach farming has gradually received attention from all over the world, its commodity volume still cannot meet the growing demand of the current domestic and foreign markets. Therefore, there is a broad prospect for the development of loach artificial breeding
At present, in the process of artificial breeding of loach, due to overfishing of wild loach, the output of natural waters has dropped sharply, and wild loach resources have been relatively scarce, and the problem of its seed has seriously restricted the development of loach aquaculture. It is already necessary to carry out artificial breeding of loach seed It is an urgent task to promote the healthy development of loach farming and increase the income of farmers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] When the natural water temperature is above 18°C, the healthy mature loach is selected as the parent according to the ratio of male to female of 2:1, and acetolutein-releasing hormone is injected to mate and lay eggs. After spawning, hatch at a water temperature of 25°C; after the yolk of the hatched larvae is basically eliminated, they are fed with open bait. After 7 days of feeding with open-mouthed bait, they were transferred to ponds for cultivation. Before the water splashes were transferred to the cultivation ponds, the cultivation ponds were first disinfected and cleaned, then put into clear water and allowed to slightly flow the cultivation water. The loach water flower put into the breeding pond is fed with zooplankton as feed; the feeding amount is 2 kg each time 3 times a day. At the same time, the feeding management is strengthened, regular inspections are carried out, and disease prevention and control work is done well until it grows into inch pieces. The ...

Embodiment 2

[0017] When the natural water temperature is above 18°C, the healthy mature loach is selected as the parent according to the ratio of male to female of 2:1, and acetolutein-releasing hormone is injected to mate and lay eggs. After spawning, hatch at a water temperature of 25°C; after the yolk of the hatched larvae is basically eliminated, they are fed with open bait. After feeding with open bait for 10 days, it was transferred to the pond for cultivation. Before the water splash was transferred to the cultivation pond, the cultivation pond was first disinfected and cleaned, then put into clear water and the cultivation water flowed slightly. The loach water flowers put into the breeding pond are fed with zooplankton; the feeding amount is 3 kg each time, 3 times a day. At the same time, the feeding management is strengthened, regular inspections are carried out, and disease prevention and control work is done well until it grows into inch pieces. The loach seedlings that grow ...

Embodiment 3

[0019] When the natural water temperature is above 18°C, the healthy mature loach is selected as the parent according to the ratio of male to female of 2:1, and acetolutein-releasing hormone is injected to mate and lay eggs. After spawning, hatch at a water temperature of 25°C; after the yolk of the hatched larvae is basically eliminated, they are fed with open bait. After feeding with open bait for 9 days, transfer to ponds for cultivation. Before the water splashes are transferred to the cultivation ponds, the cultivation ponds are first disinfected and cleaned, then put into clear water and the cultivation water flows slightly. The loach water flower put into the breeding pond is fed with zooplankton; the feeding amount is 2.5 kg each time 3 times a day. At the same time, the feeding management is strengthened, regular inspections are carried out, and disease prevention and control work is done well until it grows into inch pieces. The loach seedlings that grow into inch pi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an artificial cultivation method for loach larvae and belongs to the field of aquaculture techniques. The method includes the steps that when natural water temperature is higher than 18 DEG C, mature loaches having robust constitution are selected according to a proportion that the ratio of male loaches to female loaches is 2:1 and serve as parents for copulation and spawning; incubation is carried out under the condition of 25 DEG C water temperature; after larval stage feed is adopted to feed the loaches for 7-10 days, the loaches are transferred into a pond for cultivation until the loaches grow to 1cm long loaches; the 1cm long loaches are cultivated according to a 1:2 pond expansion rate in a pond separation mode until the loaches grow to commodity loaches. The survival rate of the loach larvae can reach above 90%, the survival rate of a larval stage reaches above 75%, the domestic advanced level is reached, scientific bases are provided for research on raising and intercropping of the pond for the loaches, exploration of stocking density, growing periods, growth rates, survival rates of cultivation and input-output ratios of the loaches, and the method has a positive significance in popularization of pond cultivation, yield increase and efficiency increase.

Description

technical field [0001] The invention relates to a method for artificially cultivating loach seedlings, belonging to the technical field of aquaculture. Background technique [0002] Loach is an omnivorous small freshwater fish widely distributed in China, Japan, the Korean Peninsula, the Commonwealth of Independent States and Southeast Asia. In addition to the Qinghai-Tibet Plateau, it is distributed in natural waters such as rivers, ditches, paddy fields, ponds, lakes and reservoirs, especially in the middle and lower reaches of the Yangtze River and the Pearl River. It is widely distributed and has high yield. It is one of the important freshwater economic fishes. one. Loach is a high-protein, low-fat type of famous and high-quality aquatic products. Its meat is tender, delicious, and rich in nutrition. It is known as ginseng in water. The edible part of loach accounts for about 80% of the whole fish body, which is higher than that of general freshwater fish. Therefore,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 吴先斌
Owner JINGZHOU FUCHENG WUFENG LOACH BREEDING SPECIALIZED COOP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap