Method for ecological acclimation of feeding habits of wild large individual acanthogobius ommaturus

A technology for domestication of bar-tailed gobies and feeding habits, which is applied in fish farming, climate change adaptation, application, etc.

Inactive Publication Date: 2009-08-26
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved in the present invention is to carry out indoor artificial domestication and artificial breeding of wild large individual gobies, so that it can adapt to artificial compound feed

Method used

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Embodiment Construction

[0012] The wild gobies caught in the Yangtze River Estuary are oxygenated and transported back, and healthy and vigorous large individuals are selected from them. Generally speaking, the body length is more than 20cm and the weight is more than 80g. Soak and sterilize with 5 parts per million of potassium permanganate solution and then put it into the breeding pond. The area of ​​the breeding pond is 1 square meter, and each pond can stock about 10 tails. Stop eating for 6 days. The water temperature in the breeding pond is 16°C, the salinity is 1, the dissolved oxygen is above 4mg / ml, and the pH is 7.0-9.0. The temperature of the breeding pond is controlled by heating rods, and the salinity is configured with seawater essence and filtered tap water.

[0013] Keep the environment quiet during the food habit acclimation process, just knock on the cement pool wall every time you feed the bait, and perform sound stimulation and domestication on the feeding of the goby, so that t...

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PUM

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Abstract

The invention provides a method for the ecological acclimation of the feeding habits of wild large acanthogobius ommaturus and belongs to the acclimation of the feeding habits of acanthogobius ommaturus for making the acanthogobius ommaturus adaptive to artificial compound feed. The method comprises processes concerning environment, fish fry, bait and rearing with different diets, and is characterized in that: 20-centimeter-long and 80-gram health fish individuals are placed in a culture pond and cultured for 6 days without food; the initial temperature of the water in the pond is 16 DEG C, the salinity of the water is 1, the concentration of dissolved oxygen in the water is more than 4mg / ml, and the pH value of the water is 7.0 to 9.0; the environment is kept quiet and vibroacoustic stimulation is given when feeding is carried out; an upper cover of the culture pond shields light, and light simulation is given when feeding is carried out; from the 7th day on, the salinity of the water is 2, the temperature of the water rises at 0.2 DEG C each day, the fish individuals are fed with fresh and alive fingerlings at the same time and place each day; from the 17th day on, the salinity of the water is 3, and minced fresh and alive fingerling blocks are fed; from the 27th day on, the salinity of the water is 4, the feed amount of the fresh and alive fingerling blocks is reduced and artificial compound feed is fed; and from the 42nd day on, the water temperature is 23 DEG C and the salinity of the water is 4. The method is used for the acclimation of the feeding habits of acanthogobius ommaturus.

Description

Technical field: [0001] The invention relates to a feeding habit domestication method of large wild fish. Background technique: [0002] The goby belongs to the family Gobiidae of the order Perciformes, and usually has a row of black spots on the side of the body, 3-5 longitudinal black fine spots on the second dorsal fin, and a large piece at the base of the caudal fin. Black spot is one of the common fish in the Yangtze Estuary area of ​​China, and it is also distributed in the South China Sea, East China Sea, and Yellow and Bohai Sea areas. [0003] Before the body length of 20 mm, the wild goby mainly lives in plankton, and mainly feeds on the larvae of copepods and shrimps and crabs. After the body length is 20 mm, it turns into a benthic life and feeds on shrimp seedlings and crab seedlings. In the Yangtze River estuary area, the larger individual gobies feed on small fish such as gobies and wheat ear fish, as well as shrimps and crabs. According to the anatomical d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 冯广朋庄平章龙珍刘鉴毅张涛黄晓荣赵峰侯俊利
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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