Indoor fry breeding method of hapalogenys nitens

A technology of oblique-banded bearded bream and bearded bearded bream, which is applied in fish farming, climate change adaptation, animal husbandry, etc., can solve the problems of fry loss, achieve high-efficiency temporary breeding, ensure replenishment, and reduce the effect of water exchange

Active Publication Date: 2019-01-29
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the bearded seabream fry are highly sensitive to changes in the water environment, and changes in the water environment often cause stress and loss of fry.

Method used

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  • Indoor fry breeding method of hapalogenys nitens
  • Indoor fry breeding method of hapalogenys nitens

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Prepare a conical bucket with a drain at the bottom, cool the water in the conical bucket to 20°C with ice cubes, place the copepods in the conical bucket for 3 minutes, open the drain at the lower end of the conical bucket, and drain Dead and benthic living copepods, the remaining copepods are used to feed the fry of the scalloped sea bream in the nursery pond. The feeding amount of copepods depends on the amount of seedlings in the nursery pond, and it is based on the fact that the fry of the oblique-strap sea bream can eat most of the copepods in about 4 hours; the commercially available black soldier fly larvae eggs are placed in the In a constant temperature and humidity light incubator, the temperature was adjusted to 27°C and the relative humidity (RH) was 75%. Larvae hatch in about 72 hours. The larvae are fed with open feed, and the open feed is composed of the following components according to the mass percentage: 20% of corn meal, 18% of soybean meal, 2% of ...

Embodiment 2

[0036]Prepare a conical bucket with a drain at the bottom, cool the water in the conical bucket to 18°C ​​with ice cubes, place the copepods in the conical bucket for 5 minutes, open the drain at the lower end of the conical bucket, and drain Dead and benthic living copepods, the remaining copepods are used to feed the fry of the scalloped sea bream in the nursery pond. The feeding amount of copepods depends on the amount of seedlings in the nursery pond, and it is based on the fact that the fry of the oblique-strap sea bream can eat most of the copepods in about 4 hours; the commercially available black soldier fly larvae eggs are placed in the In a constant temperature and humidity light incubator, the temperature was adjusted to 25°C and the relative humidity (RH) was 80%. Larvae hatch in about 72 hours. The larvae are fed with open feed, and the open feed is composed of the following components according to the mass percentage: 18% of corn meal, 20% of soybean meal, 1% of...

Embodiment 3

[0040] Prepare a conical bucket with a drain at the bottom, cool the water in the conical bucket to 19°C with ice cubes, place the copepods in the conical bucket for 2 minutes, open the drain at the lower end of the conical bucket, and drain Dead and benthic living copepods, the remaining copepods are used to feed the fry of the scalloped sea bream in the nursery pond. The feeding amount of copepods depends on the amount of seedlings in the nursery pond, and it is based on the fact that the fry of the oblique-strap sea bream can eat most of the copepods in about 4 hours; the commercially available black soldier fly larvae eggs are placed in the In a constant temperature and humidity light incubator, the temperature was adjusted to 30°C and the relative humidity (RH) was 70%. Larvae hatch in about 72 hours. The larvae are fed with open feed, and the open feed is composed of the following components according to the mass percentage: 22% corn meal, 15% soybean meal powder, 3% ye...

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Abstract

The invention discloses an indoor fry breeding method of hapalogenys nitens. The method comprises the following steps: screening copepods baits, screening hermetia illucens larva baits, making artificial micro fish reefs and performing placement, and feeding copepods and hermetia illucens larvae. According to the method, the trace element supplement of fries are ensured, the immunity of the friesis improved, a relatively great role is played in the fry breeding survival rate at this stage, and the highly efficient temporary-culture is realized in fry breeding rooms.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to an indoor seedling raising method of slanted sea bream. Background technique [0002] Oblique-banded sea bream, scientific name Hapalogenys nitens, belongs to the order Perciformes, the family of perch, and the genus of sea bream. Its meat is delicious and nutritious, and it is very popular among the coastal residents of our country. At present, the artificial seedlings of the slanted sea bream mostly adopt the method of laying eggs in the pond. The slanted sea bream eggs obtained by artificial induction are put into the pond, and the natural bait in the pond is used as the opening bait for the fry. After the seedlings grow to about 1.5 cm, fish out, and put them in the indoor nursery pond to continue fine cultivation. [0003] At the fry stage, the sloping mustache has a high demand for nutritional balance of the bait, and specific biological bait is required t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/20
CPCA23K10/20A23K50/80A01K61/10Y02A40/81Y02A40/818
Inventor 张艺林培华杨涛陈云龙陈洪清黄伟卿单秀娟刘铮陈雨婧
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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