Low-loss and efficient artificial breeding method of Taiwan loaches

An artificial breeding and low-loss technology, applied in the direction of climate change adaptation, additional food elements, animal feed, etc., can solve the problems of no clear reports, lack of theoretical basis, high mortality, etc., to improve synchronous maturity, reduce mortality loss, The effect of increasing the induced labor rate

Inactive Publication Date: 2018-02-23
TONGREN POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Li Qian, Ru Jingen, Liu Shili, et al. Artificial breeding experiment of "Taiwan loach"[J]. Hebei Fishery, 2014(9):43-46.; Ding Chenlong, Wang Xinhai, Wang Xuanpeng, et al. Breeding of Taiwan loach and local loach, Comparison of gonad development and growth[J]. Journal of Tianjin Normal University (Natural Edition), 2016, 36(3):69-73. The artificial breeding of Taiwan loach is also blooming everywhere in China, but the parent loach is not properly selected, Sperm extraction and high mortality after reproduction of female loach have always been important reasons for the high cost of reproduction
At present, there are some reports on the artificial propagation of this variety in scientific literature and invention patents, but some reports lack a certain theoretical basis, and some are not in line with the actual production.
There is no clear report on how to effectively select brood loach, avoid killing males, and reduce postnatal mortality of brood loach (especially female loach) so as to reduce reproductive loss and improve reproductive efficiency.

Method used

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  • Low-loss and efficient artificial breeding method of Taiwan loaches

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 (early May):

[0024] According to the above step (1), 50 kg of parent loach was cultivated; in early May, 300 12-month-old female loach and 300 male loach were selected according to the above step (2); artificial induction was carried out according to the above step (3), and the overall induced labor rate reached 94%. %; Carry out artificial insemination according to the above step (4), the overall fertilization rate reaches 98%, and the hatching rate reaches 85%; follow the above steps (1), (2), (3), (4), especially step (5) A series of operations were carried out for postpartum pro-loach care, and the survival rate of post-partum pro-loach reached 86%.

Embodiment 2

[0025] Example 2 (early July):

[0026] Follow the above steps (1) to cultivate 60 kg of parent loach; in early July, select 300 14-month-old female loach and 300 male loach according to the above step (2); artificially induce labor according to the above step (3), and the overall induced labor rate reaches 95%. %; Carry out artificial insemination according to the above step (4), the overall fertilization rate reaches 99%, and the hatching rate reaches 83%; follow the above steps (1), (2), (3), (4), especially step (5) A series of operations were carried out for postpartum pro-loach care, and the postpartum pro-loach survival rate reached 85%.

Embodiment 3

[0027] Example 3 (early September):

[0028] According to the above step (1), 70 kg of parent loach was cultivated; in early September, 300 16-month-old female loach and 300 male loach were selected according to the above step (2); artificial induction was carried out according to the above step (3), and the overall induction rate reached 92 %; Carry out artificial insemination according to the above step (4), the overall fertilization rate reaches 98%, and the hatching rate reaches 82%; follow the above steps (1), (2), (3), (4), especially step (5) A series of operations were carried out for postpartum pro-loach care, and the survival rate of post-partum pro-loach reached 87%.

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Abstract

The invention discloses a low-loss and efficient artificial breeding method of Taiwan loaches. The low-loss and efficient artificial breeding method is characterized by comprising the following stepsof 1, pre-delivery breeding of breeding loaches, wherein commodity loaches which grow quickly and are robust in size are selected from first filial generation 1-year old loaches one year ahead as thebreeding loaches, and breeding is strengthened for 0.5-3 months; 2, selection of the breeding loaches, wherein when the water temperature reaches 18 DEG C, various groups of female and male parent loaches are put in a parent loach grading sifting cylinder respectively to be sifted and matched; 3, artificial delivery acceleration; 4, artificial insemination; 5, after-delivery parent loach nursing.The parent loaches are effectively selected, synchronous sexual maturity of female and male loaches and the same batch of the parent loaches is improved, the delivery acceleration rate and the fry delivery tidiness rate are increased, and the artificial breeding efficiency is improved; meanwhile, the parent loach dead loss of artificial breeding is reduced.

Description

technical field [0001] The invention relates to the field of artificial propagation of loach, in particular to a method for artificial propagation and seedling raising of Taiwan loach with low loss and high efficiency. Background technique [0002] Introduced directly from Taiwan to the mainland in 2012, it has the characteristics of large individuals, fast growth, high yield, no mud drilling, basically no difference in size between male and female, strong immunity, and low bait coefficient. Half of the country. Li Qian, Ru Jingen, Liu Shili, et al. Artificial breeding experiment of "Taiwan loach"[J]. Hebei Fishery, 2014(9):43-46.; Ding Chenlong, Wang Xinhai, Wang Xuanpeng, et al. Breeding of Taiwan loach and local loach, Comparison of gonad development and growth[J]. Journal of Tianjin Normal University (Natural Edition), 2016, 36(3):69-73. The artificial breeding of Taiwan loach is also blooming everywhere in China, but the parent loach is not properly selected, Sperm ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/17A01K61/95A23K20/163A23K20/174A23K20/195A23K50/80
CPCA23K20/163A23K20/174A23K20/195A23K50/80A01K61/10A01K61/17A01K61/95Y02A40/81Y02A40/818
Inventor 李艳华胡佳罗刚先大强罗实亚伍春艳王鲁杨秀萍
Owner TONGREN POLYTECHNIC COLLEGE
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