Artificial selecting-breeding method of antibacterial-disease good varieties of bostrichthys sinensis

A technology of Chinese snakehead and excellent varieties, applied in the direction of climate change adaptation, animal feed, additional food elements, etc., can solve problems such as inapplicability of artificial breeding, to solve the shortage of seedlings, improve immune function, and improve utilization efficiency Effect

Inactive Publication Date: 2017-09-22
舟山市普陀兴海养殖优质种苗选育研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technique is not suitable for the artificial breeding...

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0014] An artificial breeding method for an excellent bacterial disease-resistant variety of Channa sinensis, including selection of broodstock, regulation of spawning, artificial hatching, and fry cultivation. The specific breeding method is as follows:

[0015] 1) Selection of broodstock: During the peak season of onset, collect surviving fish species after the onset of bacterial disease, select the ratio of female fish to male fish as 1:1.2, and place the selected broodstock in a breeding pond. The amount of % is fed bait twice, and the bait fed is self-made chilled soft pellet feed. The ingredients and weight parts of the feed are: 19 parts of chilled fish, 18 parts of fish protein powder, 21 parts of flour, and 2 parts of multivitamins , 2.4 parts of soybean oil, 1.1 parts of fish oil, 0.7 parts of soybean lecithin, and 0.5 parts of immune peptide. The amino acid sequence of the immune peptide is HSHACCGYYVSHRGRCYCRCLRCRVLHPGKLCVCVNCSR. Absorbed by the body, it can increa...

Embodiment 2

[0020] A kind of artificial breeding method of the superior variety of Channa sinensis resistant to bacterial diseases, the specific breeding method is:

[0021] 1) During the peak season of the disease, collect surviving fish species after the onset of the bacterial disease, select the ratio of female fish and male fish as 1:1.4, put the selected broodstock in the breeding pond, and feed 5% of the broodstock body weight every day The bait was fed 3 times. The bait was self-made chilled soft pellet feed. The ingredients and parts by weight of the feed were: 22 parts of chilled fish, 18 parts of fish protein powder, 22 parts of flour, 3 parts of multivitamins, and 2.7 parts of soybean oil. 2 parts of fish oil, 0.8 parts of soybean lecithin, and 0.7 parts of immune peptide. The amino acid sequence of the immune peptide is HSHACCGYYVSHRGRCYCRCLRCRVLHPGKLCVCVNCSR. It can increase the weight of immune organs and the phagocytosis of mononuclear phagocytes, thereby promoting the immu...

Embodiment 3

[0025] An artificial breeding method for an excellent variety of Channa sinensis resistant to bacterial diseases, specifically: in the peak season of the disease, collect the individual fish species that survived the bacterial disease, select the ratio of female fish and male fish to 1:1.2, and transfer the selected The broodstock was placed in the breeding pond, and the bait was fed 3 times with the amount of 4.3% of the broodstock body weight every day. The bait fed was the self-made chilled soft pellet feed. The composition and weight parts of the feed were: 18-23 15-20 parts of fish protein powder, 20-24 parts of flour, 1-3 parts of multivitamins, 2-3 parts of soybean oil, 1-2 parts of fish oil, 0.5-0.9 parts of soybean lecithin, 0.5-0.8 parts of immune peptide ; 48 hours before broodstock spawning, inject chorionic gonadotropin 800IU / kg body weight, luteinizing hormone releasing hormone 5.5μg / kg body weight to female fish, inject chorionic gonadotropin 750IU / kg body weight...

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Abstract

The invention discloses an artificial selecting-breeding method of antibacterial-disease good varieties of bostrichthys sinensis. The artificial selecting-breeding method includes the specific steps that survival fish fingerling entities after bacterial diseases are collected in high disease-affecting season; chorionic gonadotropin and luteinizing hormone-releasing hormone are injected into female fishes before parent fishes lay eggs, and chorionic gonadotropin is injected into male fishes; fertilized eggs are incubated at the temperature of 20 DEG C to 30 DEG C, and the antibacterial-disease good varieties of the bostrichthys sinensis are obtained. The artificial selecting-breeding method has the advantages that the survival fish fingerling entities after bacterial diseases in high disease-affecting season are selected as the parent fishes, and the antibacterial-disease capacity is high; the problem that fry of the bostrichthys sinensis are short is solved, large-scale breeding of the fry of the bostrichthys sinensis is achieved, the requirements of farmers for artificial fry of the bostrichthys sinensis are met, and the artificial selecting-breeding method is suitable for application and popularization of bostrichthys-sinensis breeding farms in national coastal areas, and has the large development market space.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to an artificial breeding method for an excellent variety of Chinese snakehead snakehead that is resistant to bacterial diseases. Background technique [0002] Chinese snakeheads belong to the order Perciformes, the family Channaidae, and the genus Tongchanna, commonly known as maggot fish, earth fish, sturgeon tiger, etc. They are small warm-water fishes in the inland sea, with a body length of 20cm and a weight of about 759 cm. Larger ones are also acceptable. Up to 0.5kg, feeds on small fish, shrimps, crabs, and shellfish. It has a ferocious and voracious feeding habit. It is distributed along the northern coast of the Indian Ocean, to the Pacific Ocean in the east to Melanesia and Polynesia, to Japan in the north, and to Indonesia in the south. Distributed in the shallow water area of ​​estuaries with low proportion of seawater in the southern coast of my country, mainly in estuaries, t...

Claims

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Application Information

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IPC IPC(8): A01K61/10A23K10/22A23K10/30A23K20/147A23K20/158A23K20/174A23K50/80
CPCA01K61/10A23K10/22A23K10/30A23K20/147A23K20/158A23K20/174A23K50/80Y02A40/81Y02A40/818
Inventor 施晓峰
Owner 舟山市普陀兴海养殖优质种苗选育研究所
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