Artificial cultivation and domestication method of American shad fry and fingerlings

A technology of artificial breeding and American shad, applied in the field of fish farming, can solve the problems of increased labor intensity, death, early feeding, etc., and achieve the effects of good quality of domesticated seedlings, guaranteed survival rate, and fast growth

Inactive Publication Date: 2010-03-03
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

American shad fry open their mouths to feed early. Basically, they can open their mouths after 2-3 days of filming at a water temperature of about 20°C, and juvenile fish have a strong stress response. Improper manual operations can lead to mass death. Therefore, other fish Seed rearing techniques are not suitable for breeding shad
At present, American shad fry are cultivated in small indoor cement ponds or cement ponds with net cag

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

[0021] Location: Base of Yangtze River Rare Fish Conservation Research Center

[0022] 1. Pond bait organism cultivation and hatching management

[0023] The larvae that have just come out are raised in the hatching bucket. At this time, the water flow velocity is reduced in time and the oxygenation intensity is reduced, and the rotifers filtered through the 150-mesh sieve tulle are appropriately added.

[0024] 6 mu of earthen ponds are specially cultivated, after 120Kg / mu quicklime clear pond disinfection and exposure to the sun for 6 days. Cover the mouth of the nozzle with 80 mesh sieve tulle and pour water from the Yangtze River to the water depth of 0.8m, and apply fermented organic fertilizer-granule fertilizer (produced by Changzhou Golden Sun Animal Health Products Co., Ltd.) 20Kg / mu. Before releasing the seedlings, monitor the amount of bait organisms by sampling with a microscope. At a water temperature of 21°C, the density of single-celled green algae and rotifers...

Embodiment 2

[0034] Location: Jiangyin Shengang Sanxian Breeding Co., Ltd.

[0035] 1. Pond bait organism cultivation and hatching management

[0036] The larvae that have just come out are raised in the hatching bucket. At this time, the water flow velocity and the oxygenation intensity are reduced in time, and the rotifers filtered through the 150-mesh silk screen are appropriately added.

[0037] 6 acres of earthen ponds are specially cultivated, which are disinfected and exposed to the sun for 8 days after 120Kg / mu quicklime clear pond. Cover the mouth of the nozzle with 80 mesh sieve tulle and pour water from the Yangtze River to the water depth of 0.8m, and apply fermented organic fertilizer-granule fertilizer (produced by Changzhou Golden Sun Animal Health Products Co., Ltd.) 20Kg / mu. Before releasing the seedlings, use a microscope to monitor the amount of bait organisms. At a water temperature of 23°C, the density of single-celled green algae and rotifers will reach the peak afte...

Embodiment 3

[0047] Location: Jiangyin Fisheries Guidance Station Base

[0048] 1. Pond bait organism cultivation and hatching management

[0049] The freshly hatched larvae are reared in hatching buckets. At this time, the water flow velocity and oxygenation intensity should be reduced in time, and rotifers filtered through a 150-mesh silk screen should be added appropriately.

[0050] 6 acres of earthen ponds are specially cultivated, after 120Kg / mu quicklime clear pond disinfection and exposure to the sun for 10 days. Cover the mouth of the nozzle with 80 mesh sieve tulle and pour water from the Yangtze River to the water depth of 0.8m, and apply fermented organic fertilizer-granule fertilizer (produced by Changzhou Golden Sun Animal Health Products Co., Ltd.) 20Kg / mu. Before releasing seedlings, monitor the amount of bait organisms by sampling with a microscope. At a water temperature of 25°C, the density of single-celled green algae and rotifers will reach the peak after 15 days, and...

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 and domestication method of American shad fry and fingerlings, which optimizes the soil pond artificial cultivation steps through the measures of controlling water quality and baits in a soil pond, putting the fry in the pond as early as possible, carrying out special treatment on the baits for domestication and feeding and the like, thereby avoiding the death of American shads under stress to the maximum extent, greatly reducing the labor intensity, significantly improving the growth speed and having the advantages of simple operation, low cost, good domestication fry and fingerlings and the like. The artificial cultivation and domestication method comprises the following four steps: 1, biological cultivation and incubation management ofthe baits in the pond; 2, feeding with zooplankton; 3, feeding with special feeds, which is divided into two rearing stages: the feeding with the zooplankton is reduced and the feeding with the special feeds is simultaneously carried out in the first stage and only the feeding with the special feeds is carried out in the second stage; and 4, feeding with artificial expanded feeds, which is also divided into two rearing stages: the feeding with the special feeds is reduced and the feeding with the artificial expanded feeds is simultaneously carried out in the first stage and only the feeding with the artificial expanded feeds is carried out in the second stage.

Description

technical field [0001] The invention relates to a method for artificially cultivating and domesticating shad seedlings, belonging to the technical field of fish farming. Background technique [0002] American shad, scientific name Alosa sapidissima, English name American shad, also known as American shad, herring family, sprats. American shad is famous for its tender, plump and plump meat, which is favored by consumers and has high economic value. [0003] Due to breakthroughs in the introduction, hatching, breeding and artificial propagation of American shad's fertilized eggs, it is urgent to form a set of artificial cultivation and domestication technology for seedlings. American shad fry open their mouths to feed early. Basically, they can open their mouths after 2-3 days of filming at a water temperature of about 20°C, and juvenile fish have a strong stress response. Improper manual operations can lead to mass death. Therefore, other fish Seed rearing techniques are no...

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
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 顾若波徐钢春郑金良张呈祥徐跑张宪中
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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