Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of fry hatching method of polyscaly shovel-jaw fish

A multi-scale shovel-jaw fish and fry technology, applied in the field of multi-scale shovel-jaw fish fry hatching, can solve the problems of poor control of ejaculation time of male fish, less ovulation of brood fish, and low hatching rate, so as to improve the fertilization rate and hatchability, developmental time increase, and the effects of reduced dosage

Active Publication Date: 2018-10-30
争上游食品发展股份有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the multi-scaled shoveljaw breeding adopts natural breeding, or adopts the two-needle method of artificial breeding, but these two breeding methods have some shortcomings: the former not only has a small number of parent fish ovulation, but also has a very low hatching rate, and the latter The amount of ovulation is large, but the hatching rate is low, and the timing of ejaculation of male fish is not easy to control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0021] A method for fry hatching of multi-scale shoveljaw fish, comprising:

[0022] (1) Cultivate under conditions that meet the biological characteristics of broodstock:

[0023] (11) male and female pool, promote gonad development;

[0024] (12) Running water culture;

[0025] (2) At night during the wintering period, an incandescent light source is added next to the fish pond to increase the light time of the broodstock;

[0026] (3) During the breeding season, the broodstock are gathered together, the water inlet is raised, and the water intake is doubled to stimulate the reproductive needs of the breeding fish;

[0027] (4) select healthy and mature male and female broodstock to be placed in the fishpond that fine sand ovipositor is installed, make it natural breeding;

[0028] (5) The broodstock after natural breeding, the male and female are separated, and transferred to a fish pond with a lower water temperature for a period of one month to strengthen cultivation; ...

specific Embodiment 2

[0031] Roughly the same as specific embodiment 1, the difference only lies in:

[0032] The broodstock ripening agents are luteinizing hormone releasing hormone analogs and chorionic gonadotropin, the consumption of luteinizing hormone releasing hormone analogs is 10ug / KG, and the consumption of chorionic gonadotropin is 500IU / tail.

specific Embodiment 3

[0033] Roughly the same as specific embodiment 1, the difference only lies in:

[0034] Parent fish ripening agents are luteinizing hormone releasing hormone analogues, chorionic gonadotropin and dioconone maleate, the dosage of luteinizing hormone releasing hormone analogues is 10ug / KG, and the dosage of chorionic gonadotropin is 500IU / KG Tail, the dosage of dioconone maleate is 2mg / KG.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the fish hatching field, and particularly relates to a hatching method for fries of scaphes macrolepis. The hatching method for the fries of scaphes macrolepis comprises the following steps: (1) culturing under the condition which meets the biological characteristics of parent fish; (2) at night during a wintering period, additionally arranging an incandescent lamp light source beside a fish pond to prolong the illumination time for parent fish; (3) during the reproduction period, collecting the parent fishes, raising a water inlet, doubling water inlet amount, and stimulating breeding needs of brood fish; (4) selecting healthy and mature female and male parent fishes and putting the parent fishes into the fish pond with a sliver-sand egg picker to naturally breed the parent fishes; (5) separating the female and the male for the naturally bred parent fishes, transferring the parent fishes into the fish pond with a relatively low temperature to carry out strengthened cultivation for one month; and (6) injecting a parent fish ripener into the parent fishes subjected to the strengthened cultivation to carry out artificial reproduction.

Description

technical field [0001] The invention belongs to the field of fish hatching, and in particular relates to a fry hatching method of multi-scaled shovel-jaw fish. Background technique [0002] Shoveljaw fish with many scales - long body, slightly flattened sides, slightly raised back, and round abdomen. The head is short, the snout is blunt, the mouth is inferior, transversely split, and the corners of the mouth extend to the side edge of the ventral surface of the head. The edge of the lower jaw has sharp cuticles; there are 2 pairs of barbels, the maxillary barbels are very small, and the corner of the mouth is also very short. The dorsal fin has no spines, and the outer edge is slightly concave. Chest scales are smaller and buried under the skin. The back of the body is dark brown, and the belly is grayish white. The base of each scale on the side of the body has a crescent-shaped black spot, the dorsal and caudal fins are grayish-black, the other fins are grayish-yellow...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/17
CPCA01K61/00Y02A40/81
Inventor 王刚
Owner 争上游食品发展股份有限公司