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A kind of breeding method of sturgeon

A technology for fish fry and sturgeon, which is applied in the field of sturgeon nursery, can solve problems such as inability to adapt to artificial feed, incomplete drainage of aquaculture wastewater, and unscientific domestication of fry, so as to improve the physique of fry and avoid uneven feeding , avoid the effect of infirmity and death

Active Publication Date: 2019-12-06
彭水县碧水清泉渔业有限公司
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AI Technical Summary

Problems solved by technology

[0004] At present, there are some problems in the breeding method of sturgeon, which are mainly manifested in: (1) the drainage of aquaculture wastewater is not complete; (2) it is easy to adsorb the larvae at the sewage outlet during sewage discharge; (3) the domestication of fry is unscientific and cannot be well adapted to artificial feed
The fish fries raised in this way are relatively weak and will die in large numbers, and their survival rate is only 10-30%.

Method used

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  • A kind of breeding method of sturgeon

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Effect test

Embodiment 1

[0025] A method for raising seedlings of sturgeon, the method only relates to the running water culture of sturgeon in the fry stage, and the fry stage refers to the growth stage of the sturgeon with a body weight of less than 100g, and the present invention includes the following seven aspects:

[0026] (1) Use a basin as a breeding pond. Before using a new basin, soak and disinfect the basin with 0.7% saline solution for 24-36 hours, and then rinse it with clean water; then put it in breeding water, and the height of the basin is 60-80cm , the water depth is 35-45cm.

[0027] (2) Initial stocking: stocking the fry with a weight of less than 10g in the basin, the density is 2500-3500 fish per square meter, and the water flow rate is based on the daily water exchange volume of 6-8 times. The rate of discharge; the dissolved oxygen in the water body is set to 6-8mg / L, when the dissolved oxygen in the breeding water is lower than 6mg / L, an oxygenation device is used to increase ...

Embodiment 2

[0039] The domestication feed described in the embodiment 1 is made according to the following weight ratio: fish meal 6500kg, alpha-starch 2100kg, fish oil 200kg, liver powder 200kg, Banlangen powder 50kg, Artemisia annua powder 50kg are mixed, puffing is made into fine particles, dried, The fine particles are then sieved.

Embodiment 3

[0041] The domestication feed described in embodiment 1 is made according to following weight ratio: fish meal 6800kg, α-starch 2200kg, fish oil 210kg, liver powder 210kg, Radix Isatidis powder 53kg, Artemisia annua powder 53kg are mixed, and puffing is made into fine particles, drying, The fine particles are then sieved.

[0042] After long-term experiments and practices, the sturgeon seedlings cultivated by this method have robust physique, strong disease resistance, fast growth rate, and a survival rate of over 60%; the breeding efficiency is greatly improved. Among them, the survival rate of the domesticated feed made in Example 2 was slightly higher, reaching 63.7%.

[0043] After long-term observation, when the sturgeon weighing more than 100g is put out of the pond and put into the outdoor cement pond as juveniles for stocking in flowing water, it has basically been domesticated, and there is very little death in the outdoor cement pond.

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Abstract

The invention belongs to the technical field of sturgeon breeding methods and provides a sturgeon fry breeding method. The method involves a flowing water type tank, an initial stocking method, feeding of starter feed, breeding in separate tanks, feeding of feed in a domestication manner, a preparation method of the domestication feed and the like. The sturgeon fry breeding method has the benefits as follows: fish fries weighing 100 g or below are subjected to initial stocking and breeding in separate tanks according to five levels of weights, so that fish fries can grow in a balanced manner, feeding non-uniformity is avoided, and the situation that fishes die of weakness is avoided; targeted segmentation feed is adopted for level-by-level domestication, and accordingly, the fish fries can adapt to fed materials step by step, and the adaptability is improved; Chinese herbal medicines are added to the feed, and the physiques of the fish fries can be improved; a good rehabilitation habit can be formed by adopting a proper water changing rate, dissolved oxygen, breeding density, temperature and illuminance; the flowing water type tank is adopted, oxygen is introduced while water is input, the dissolved oxygen is increased appropriately, dirt at the bottom of the tank can be discharged during water drainage, and the water in the tank can keep clean; the physiques of the fish fries can be effectively improved, and the survival rate is increased with a series of methods.

Description

technical field [0001] The invention relates to the technical field of breeding methods for sturgeon, in particular to a method for raising seedlings of sturgeon. Background technique [0002] Sturgeon has extremely high edible, medicinal, ornamental and economic value. All parts of sturgeon are edible except for the bone plate on the body surface. They have extremely high nutritional value and are listed as high-level tonics. Sturgeon has a good effect on softening cardiovascular and cerebrovascular, promoting brain development, improving IQ, and preventing senile dementia; cartilage and bone marrow contain anti-cancer factors, there is a saying of "shark fin, sturgeon bone"; it has extremely high medicinal properties value. [0003] Sturgeon is a cold-water fish with fast growth rate and fresh and tender meat. It is one of the special aquatic products with relatively good economic benefits and is cultivated in many regions of the country. [0004] At present, there are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/30A23K10/22A23K10/26A23K20/163A23K20/158
CPCA01K61/00Y02A40/81Y02A40/818
Inventor 刘正贵丁顺国赵长华
Owner 彭水县碧水清泉渔业有限公司
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