Parent fish culture method for varicorhinus macrolepis

A technology of multi-scale shoveljaw fish and its cultivation method, which can be used in fish farming, climate change adaptation, animal feed, etc., can solve the problems of poor egg quality of female fish and scarce semen of male fish, and achieve good growth and weight The effect of obvious growth and plump gonad development of parent fish

Active Publication Date: 2016-06-08
争上游食品发展股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the artificial breeding of multi-scaled shoveljaw fish adopts the running water culture method of ordinary cold-water fish to cultivate broodstock, but after a period of feeding, the physique of the broodstock becomes thinner instead, which directly leads to the deterioration of the quality of the eggs of the female fish and the deterioration of the semen of the male fish. rare

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0030] A kind of broodstock culture method of multi-scale shovel jaw fish, comprising

[0031] (1) Running water culture

[0032] (11) The breeding density is 2000 / fish pond;

[0033] (12) The water depth of the fish pond is 1.2 meters from April to October, and the water depth of the fish pond is not less than 2.2 meters in the rest of the time;

[0034] (13) Water quality requirements: mountain spring water with no industrial and pesticide pollution and fresh water quality; no odor, no peculiar smell, no obvious oil film foam, sufficient water source, dissolved oxygen in water shall not be lower than 5 mg / L;

[0035] (2) Transformation of fish ponds

[0036] (21) Deepen the depth of the fish pond to 2.5 meters, the length of the fish pond is 15 meters, and the width is 5 meters;

[0037] (22) Build Fish Cave

[0038] At the bottom of the fish pond, cement square bricks are used to pile up multiple fish holes with gaps that can accommodate all broodstock;

[0039] (23) C...

specific Embodiment 2

[0051] A kind of broodstock culture method of multi-scale shovel jaw fish, comprising

[0052] (1) Running water culture

[0053] (11) The breeding density is 2500 / fish pond;

[0054] (12) The water depth of the fish pond is 1.5 meters from April to October, and the water depth of the fish pond is not less than 2.2 meters in the rest of the time;

[0055] (13) Water quality requirements: mountain spring water with no industrial and pesticide pollution and fresh water quality; no odor, no peculiar smell, no obvious oil film foam, sufficient water source, dissolved oxygen in water shall not be lower than 5 mg / L;

[0056] (2) Transformation of fish ponds

[0057] (21) Deepen the depth of the fish pond to 2.5 meters, the length of the fish pond is 15 meters, and the width is 8 meters;

[0058] (22) Build Fish Cave

[0059] At the bottom of the fish pond, cement square bricks are used to pile up multiple fish holes with gaps that can accommodate all broodstock;

[0060] (23) C...

specific Embodiment 3

[0072] A kind of broodstock culture method of multi-scale shovel jaw fish, comprising

[0073] (1) Running water culture

[0074] (11) The breeding density is 2200 / fish pond;

[0075] (12) The water depth of the fish pond is 1.4 meters from April to October, and the water depth of the fish pond is not less than 2.2 meters in the rest of the time;

[0076] (13) Water quality requirements: mountain spring water with no industrial and pesticide pollution and fresh water quality; no odor, no peculiar smell, no obvious oil film foam, sufficient water source, dissolved oxygen in water shall not be lower than 5 mg / L;

[0077] (2) Transformation of fish ponds

[0078] (21) Deepen the depth of the fish pond to 2.5 meters, the length of the fish pond is 15 meters, and the width is 6 meters;

[0079] (22) Build Fish Cave

[0080] At the bottom of the fish pond, cement square bricks are used to pile up multiple fish holes with gaps that can accommodate all broodstock;

[0081] (23) C...

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PUM

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Abstract

The invention relates to a parent fish culture method for varicorhinus macrolepis. The method comprises the steps of 1, performing flowing water culture; 2, modifying a fishpond; 3, screening out robust and complete parent fish with the slender body, and putting the screened parent fish into the fishpond which is cleaned and disinfected in advance for feeding; 4, reasonably matching bait of the parent fish; 5, periodically cleaning the fishpond. The parent fish culture method for varicorhinus macrolepis has the advantages that the parent fish is good in development in a wintering period, and the weight of the parent fish is increased obviously; the spring cave environment is simulated, and the gonad of the parent fish is developed to be fuller.

Description

technical field [0001] The invention relates to the field of fish culture, in particular to a broodstock culture method of multi-scaled shoveljaw. 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 hard 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, the ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K50/80
CPCY02A40/81Y02A40/818A01K61/00
Inventor 王刚
Owner 争上游食品发展股份有限公司
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