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A kind of Taiwan loach hatching method

A technology of loach and brood loach, applied in the direction of climate change adaptation, fish farming, application, etc., can solve the problems of low hatching rate and survival rate, and achieve the effect of large-scale hatching and breeding, high survival rate and easy implementation

Inactive Publication Date: 2016-08-31
浙江和玺生态养殖有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that hatching rate and survival rate are on the low side when artificially propagating Taiwan loach at present, provides a kind of hatching method of Taiwan loach, and this method is easy to implement, and fertilization rate and hatching rate can reach more than 95%, and survival rate High, conducive to the realization of large-scale hatching and breeding of loach in Taiwan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The steps of Taiwan loach hatching method provided by the invention are as follows:

[0025] (1) Choose pro loach

[0026] Select 2-3 winter age healthy parent loach with strong physique, normal body color, correct body shape, strong vitality, no disability, and complete fin rays. The male parent loach requires a body length of 15-20cm and a weight of 12-40g. 40~60g.

[0027] (2) Intensive cultivation of parent loach

[0028] Separate the female loach and the male loach into the pool for flushing cultivation. The time is 25 days. The depth of the pool is 1.2 meters. Stock 100Kg per mu, and feed enhanced cultivation feed every day. The enhanced cultivation feed is earthworms, fly maggots, poultry waste, soybean meal, wheat bran or loach feed with protein content greater than 40%. The feeding amount is 7% of the body weight of the parent loach.

[0029] (3) Injection induced labor

[0030] Inject oxytocin drugs for female loach and male loach. For every 10 kg of fema...

Embodiment 2

[0040] The steps of Taiwan loach hatching method provided by the invention are as follows:

[0041] (1) Choose pro loach

[0042] Select 2-3 winter age healthy parent loach with strong physique, normal body color, correct body shape, strong vitality, no disability, and complete fin rays. The male parent loach requires a body length of 15-20cm and a weight of 12-40g. 40~60g.

[0043] (2) Intensive cultivation of parent loach

[0044] Separate the female loach and the male loach into the pool for flushing cultivation. The time is 30 days. The depth of the pool is 1.5 meters. Stock 150Kg per mu, and feed enhanced cultivation feed every day. The enhanced cultivation feed is earthworms, fly maggots, poultry leftovers, soybean meal, wheat bran or loach feed with protein content greater than 40%. The feeding amount is 8% of the body weight of the parent loach.

[0045] (3) Injection induced labor

[0046] Inject oxytocin drugs for female loach and male loach. For every 10 kg of ...

Embodiment 3

[0056] The steps of Taiwan loach hatching method provided by the invention are as follows:

[0057] (1) Choose pro loach

[0058] Select 2-3 winter age healthy parent loach with strong physique, normal body color, correct body shape, strong vitality, no disability, and complete fin rays. The male parent loach requires a body length of 15-20cm and a weight of 12-40g. 40~60g.

[0059] (2) Intensive cultivation of parent loach

[0060] Separate the female loach and the male loach into the pool for flushing and cultivation. The time is 25 to 30 days. The depth of the pool is 1.5 meters. The stocking density is 150Kg per mu, and the enhanced cultivation feed is fed every day. The enhanced cultivation feed is earthworms, fly maggots, poultry waste, soybean meal, wheat bran or loach with a protein content greater than 40%. The feeding amount is 9% of the body weight of the parent loach.

[0061] (3) Injection induced labor

[0062] Inject oxytocin drugs for female and male loach...

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PUM

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Abstract

The invention provides a Taiwan loach hatching method and relates to the field of loach breeding. The steps of the method include: (1) selecting 2-3 winter-aged healthy parent loach; (2) intensively cultivating the parent loach for 25-30 days; (3) injecting chorionic gonadotropin and maleic acid into the parent loach. Dioxone; (4) Put 0.5 kg of fish eggs and 1.8~2.2 ml of sperm into 0.8~1.2 kg of salt water with a concentration of 0.3%~0.5% for fertilization, and then put the fertilized eggs into the hatching bucket to hatch; (5) Feed the broodfish in a pond with fresh water quality, and apply drugs or inject antibacterial drugs to the wound; (6) Put the larvae in the pond after hatching for 70 to 80 hours, feed them with cooked egg yolks, and clean them before feeding. Boiled egg yolk residue from the first feeding. The Taiwan loach hatching method of the invention is easy to implement, and the fertilization rate and hatching rate can reach more than 95%, and the survival rate is high, which is beneficial to large-scale hatching and breeding of the Taiwan loach.

Description

technical field [0001] The invention relates to the field of loach cultivation, in particular to a method for hatching loach from Taiwan. Background technique [0002] The number of Taiwanese loaches in natural waters is small, and the ovaries and testes of parent loaches are not uniformly developed, and the amount of simultaneous spawning is low. The hatching process is affected by external environments such as wind, temperature, heavy rain, low dissolved oxygen in water, and Cyclops infestation. However, when artificially breeding Taiwan loach, the water quality and temperature are not well controlled, the feeding amount of the feed is inaccurate, and the breeding density is too high, resulting in low hatching rate and survival rate. Contents of the invention [0003] The purpose of the present invention is to solve the problem that hatching rate and survival rate are on the low side when artificially propagating Taiwan loach at present, provides a kind of hatching metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谭健标
Owner 浙江和玺生态养殖有限公司