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Artificial propagation method for Taiwan mud fishes

A technology of artificial breeding and loach, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of high rate of loach injury or death, unsatisfactory natural resources of loach in Taiwan, and no breeding technology system has been formed, so as to achieve good results Economic benefits, increase the induced labor rate, and strong operability

Inactive Publication Date: 2014-10-08
FOSHAN DUNHUANG AQUACULTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the increase in market demand, the extensive use of pesticides, the increase in fishing intensity, and the rise of special aquatic products that use Taiwan loach as feed, the natural resources of Taiwan loach are far from meeting people's needs.
Taiwan loach has strong vitality and is suitable for artificial breeding. However, my country has not yet formed a mature breeding technology system.
There are still many problems in parent loach breeding, induced labor methods, fertilized egg hatching, etc., resulting in the rate of loach injury or death as high as 50%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of artificial propagation method of Taiwan loach, the method comprises the following steps:

[0024] Select parental loaches over one and a half years old, 100 female loach, plump and soft abdomen, large and protruding genital pores, round and red halo, body length 25-30 cm, weight more than 100 grams; 120 male loach, body color Bright, with obvious marriage color, body length 25-30 cm, weight more than 120 grams. The constant water temperature was 20°C, and the ratio of male and female broods was 1:2. The females were injected with 300 IU HCG and the males were injected with 150 IU HCG to induce labor, and then put them into cages. After inducing labor for 8 hours, first squeeze out the semen of the male loach, then squeeze out the eggs into a container, pour the sperm on the eggs, stir gently to mix them, and add a small amount of water after stirring for a few seconds to obtain fertilized eggs. Rinse the fertilized eggs with clean water 3 times. After washing...

Embodiment 2

[0027] A kind of artificial propagation method of Taiwan loach, the method comprises the following steps:

[0028] Choose parental loaches over one and a half years old, 100 females, full and soft abdomen, large and protruding genital pores, round and red halo, body length 25-30 cm, weight more than 100 grams; 130 males, body color Bright, with obvious marriage color, body length 25-30 cm, weight more than 120 grams. The water temperature was kept constant at 26°C, and the ratio of male and female broods was 1:2. The females were injected with 300 IU HCG, and the males were injected with 150 IU HCG to induce labor and then put them into cages. After 15 hours of induced labor, first squeeze out the semen of the male loach, and then squeeze out the eggs into a container, pour the sperm on the eggs, stir gently to mix them, and add a small amount of water after stirring for a few seconds to obtain fertilized eggs. Rinse the fertilized eggs with clean water 5 times. After washing...

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Abstract

The invention discloses an artificial propagation method for Taiwan mud fishes and belongs to the propagation technologies for fresh water mud fishes. The method includes the following steps that (1), parent mud fish fries are selected; (2), artificial spawning induction is performed; (3), artificial fertilization is performed; (4), hatching is performed. According to the technology, the method that human chorionic gonadotropin (HCG), hypophyses or luteotropin releasing hormone d-ala analogs and other spawning induction medicine are injected to the backs of the parent mud fishes is adopted, so that the spawning induction rate of the parent mud fishes is increased over 91.0%; according to the technology, the fertilization rate of the parent mud fishes is increased over 96.6% through artificial fertilization, and the hatching rate of the parent mud fishes is increased over 98.0% through still water hatching; the survival rate of the parent mud fishes after artificial propagation reaches 90.9%. Propagation is performed by the utilization of the method, so that the survival rate, the spawning induction rate, the fertilization rate and the hatching rate of the Taiwan mud fishes are much higher than the corresponding rates through natural propagation and traditional propagation method for the mud fishes, industrialized production of the Taiwan mud fishes can be achieved, the fries are provided for large-scale farming, and high economical benefits are obtained.

Description

technical field [0001] The invention belongs to the breeding technology of freshwater loach, in particular to an artificial breeding method of loach. Background technique [0002] Taiwan loach is a small freshwater loach in the order Cyprinidae. Because of its tender, light, delicious meat, and its nourishing and medicinal functions, it has always been loved by people. Taiwan loach is rich in nutrition, and its meat is rich in protein, fat, vitamins, calcium, iodine, iron, etc., and has high unsaturated fatty acids. [0003] Due to the increase in market demand, the extensive use of pesticides, the increase in fishing intensity and the rise of special aquatic products that use Taiwan loach as feed, the natural resources of Taiwan loach are far from meeting people's needs. Taiwan loach has strong vitality and is suitable for artificial breeding. However, a mature breeding technology system has not yet been formed in our country. There are still many problems in the cultiva...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李锦芳
Owner FOSHAN DUNHUANG AQUACULTURE
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