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Breeding method for increasing survival rate of yellow catfish fry

A breeding method and survival rate technology, which is applied in the field of raising the survival rate of yellow catfish larvae, can solve the problems of slow growth and low survival rate, and achieve the effects of fast growth, high survival rate and increased oxygen content

Inactive Publication Date: 2016-06-15
安徽天邦饲料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the invention provides a method for cultivating yellow catfish, which overcomes the defects of low survival rate and slow growth of the current artificial breeding of yellow catfish larvae

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment

[0021] A culture method for improving the survival rate of yellow catfish larvae, comprising the following steps:

[0022] 1) Pond selection: Select a pond with a depth of 2-2.2m, a slope ratio of 1:2-3, and an area of ​​1-2 mu as the seedling cultivation pond, clean up the silt and debris at the bottom of the pond, repair and level the bottom of the pond and set up A number of drainage outlets, the bottom of the pond is provided with silt, the thickness of the silt is 10-15cm, and the pond is disinfected with quicklime at 70-80kg per mu 10 days before the seedlings are thrown;

[0023] 2) Cultivate bait: After the clear pond is disinfected, add decomposed cattle and sheep manure to the pond at a rate of 60-70kg per mu to cultivate water quality, and breed appropriate amount of natural bait, including snails and rotifers 7 days before seedling injection , nauplii, cladocera, copepod bait, etc.;

[0024] 3) Plant aquatic plants: plant aquatic plants scattered at the bottom of ...

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Abstract

The invention discloses a breeding method for increasing the survival rate of yellow catfish fry. The method includes the steps of pond selecting, bait breeding, water grass planting, fry putting, bait putting, water quality managing and daily managing. The breeding method is scientific and reasonable; by adopting methods of applying decomposed manure, increasing the oxygen content of a water body in a pond, replacing pond water in time, cleaning a food table, applying sterilize medicine and the like, the water quality is ensured and adjusted, the frequently-seen diseases of yellow catfish are effectively prevented, the immunity of yellow catfish weak in constitution at a fry stage is enhanced, the transition from endogenous nutritive yolk to exogenous nutrients can be well completed for fry, and the fry is balanced in nutrient, high in survival rate and rapid in growth speed and has good breeding and popularizing value.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a cultivation method for improving the survival rate of larvae of yellow catfish. Background technique [0002] Yellow catfish belongs to Siluriformes and Siluridae in classification, and is widely distributed in my country. Although it is small in size, its meat is delicious and nutritious, and is very popular among consumers. Based on the increasing market demand for yellow catfish, in recent years more and more intensive and large-scale farming of herring has been carried out with compound feed. At present, the main breeding areas are Foshan, Jiangmen, Sichuan, Jiangsu and Zhejiang. When the fry are released from the egg membrane, they begin to develop outside the egg membrane and enter the larvae stage. The larvae mainly rely on yolk nutrition in the early stage. When the yolk sac is absorbed and start to eat, the larvae mortality rate is high at this stage. If a sufficient amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K50/80A23K10/20C02F1/50
CPCY02A40/81Y02A40/818A01K61/00C02F1/50
Inventor 陆裕肖张秀敏尹元锋
Owner 安徽天邦饲料科技有限公司
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