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Micropterus salmoides seedling raising method

A technology for largemouth bass and nursery ponds, applied in application, climate change adaptation, fish farming, etc., can solve problems such as low survival rate, and achieve the effect of reasonable nursery process, enhanced health status and vitality, and good growth environment.

Active Publication Date: 2021-12-17
JIMEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for raising largemouth bass seedlings in order to overcome the low survival rate problem of existing largemouth bass seedling cultivation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] On January 5, 2019, 570 brown slices with fertilized eggs were transported back from Longhai County, Zhangzhou City, Fujian Province, and artificial breeding of largemouth bass was carried out. The specific method includes the following steps:

[0037] Put the brown slices with fertilized eggs (8000 eggs / piece) into the 6m 2In the cement pool, each pool has 95 pieces, a total of 6 pools, the water depth is 0.7m, the water temperature is 21°C, the salinity is 0, the light intensity of the nursery workshop is 420Lx, the hatching pool runs for 24 hours, and the water exchange volume is about 100% of the hatching water body. 4 times, fertilized eggs began to hatch 34 hours after fertilization, the hatching rate was 82.2%, and the total number of newly hatched larvae was 3.75 million; after the fertilized eggs hatched, take out all the brown pieces in the cement pool, clean them, and save them for later use;

[0038] After 4 days of cultivation, the newly hatched larvae grad...

Embodiment 2

[0044] On February 2, 2019, 455 brown slices with fertilized eggs were transported back from Longhai County, Zhangzhou City, Fujian Province (the brown slices and the brown slices in Example 1 were derived from different batches of products from the same manufacturer, and there was no significant difference in the product. Sexual difference), start to carry out artificial breeding of largemouth bass, and concrete method comprises the following steps:

[0045] Put the brown slices with fertilized eggs (8000 eggs / piece) into the 6m 2 In the cement pool, each pool has 91 pieces, 5 pools in total, the water depth is 0.7m, the water temperature is 21°C, the salinity is 0, the light intensity of the nursery workshop is 420Lx, the hatching pool runs for 24 hours, and the water exchange volume is about 100% of the hatching water body. 4 times, fertilized eggs began to hatch 34 hours after fertilization, the hatching rate was 82.7%, and the total number of newly hatched larvae was 3.01...

Embodiment 3

[0051] On February 18, 2019, 744 brown slices attached to fertilized eggs were transported back from Longhai County, Zhangzhou City, Fujian Province (the brown slices and the brown slices in Example 1 were derived from different batches of products from the same manufacturer, and there was no significant difference in the product. Sexual difference), start to carry out artificial breeding of largemouth bass, and concrete method comprises the following steps:

[0052] Put the brown slices with fertilized eggs (8000 eggs / piece) into the 6m 2 In the cement pool, each pool has 93 pieces, a total of 8 pools, the water depth is 0.7m, the water temperature is 21°C, the salinity is 0, the light intensity of the seedling cultivation workshop is 420Lx, the hatching pool runs for 24 hours, and the water exchange volume is about 100% of the hatching water body. 4 times, fertilized eggs began to hatch 34 hours after fertilization, the hatching rate was 82.5%, and the total number of newly ...

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Abstract

The invention relates to a micropterus salmoides seedling raising method. The micropterus salmoides seedling raising method comprises the following steps that (1), palm sheets attached with fertilized eggs are placed in a cement pond of 4m<2>-8m<2> to be hatched, the cement pond is subjected to running water cultivation, and the daily running water amount is 3-5 times of a water body of the cement pond; (2), 5-7 days after the fertilized eggs are hatched, micropterus salmoides seedlings are transferred into a cement pond of 10m<2>-15m<2> for cultivation; (3), after the micropterus salmoides seedlings open mouths, the salinity of the seedling breeding water body is increased to 3-5 in the 5-7 day; (4), after the micropterus salmoides seedlings open mouths, the micropterus salmoides seedlings are transferred to the pond once 10-12 days later, and the micropterus salmoides seedlings are transferred to a cement pond with the area of 25m<2>-30m<2> to be cultivated; and (5), the micropterus salmoides seedlings are started to screen 20-24 days after the micropterus salmoides seedlings open mouths, and then the micropterus salmoides seedlings are screened once every 7 days. According to the micropterus salmoides seedling raising method, the survival time of the biological live bait in the water body is prolonged and the health state and the vitality of themicropterus salmoides seedlings in the seedling breeding period are enhanced through a method of matching lamp trapping with repeated pond changing, increasing the salinity of the water body and controlling the illumination intensity, so that the survival rate of the micropterus salmoides seedlings is increased to 40% or above.

Description

technical field [0001] The invention relates to the technical field of breeding and breeding of aquatic animals, in particular to a method for raising largemouth bass seedlings. Background technique [0002] Largemouth bass (Micropterus salmoides), commonly known as California bass, belongs to Perciformes (Perciformes) Sunfish family (Cehtrachidae) Black bass (Micropterus), native to North America, distributed with northern subspecies and Florida subspecies, belonging to broad temperature Sexual carnivorous fish can survive in the water temperature range of 1-34°C and the salinity value of 0-15. The optimum growth water temperature is 20-30°C, and the optimum growth salinity is 0-5. my country's Guangdong Province was introduced in 1983, and artificial breeding was successful in 1985. After that, it was promoted and cultivated throughout the country. Because of its strong adaptability, fast growth, delicious taste, and high economic value, it has become one of the important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 叶坤李完波陈绪兵邱国文
Owner JIMEI UNIV
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