CN101401554A

CN101401554A - Artificial cultivation method for sea horse fry

Info

Publication number: CN101401554A
Application number: CNA2007101574145A
Authority: CN
Inventors: 常庆发
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-07
Filing date: 2007-10-07
Publication date: 2009-04-08

Abstract

The invention relates to a method for artificially breeding a sea horse seeding. The method is to adopt the siphonage to discharge half to two thirds of stale sea water in pool within two or three days after hatching of sea horse, absorb completely sewage on the pool bottom, and add fresh sea water. When water is refreshed, the temperature difference between the stale sea water and refresh sea water is not more than 3 DEG C. The length of the bred seeding body is only between 0.8 and 1 centimeter, and the bred seeding stocking is between 150 and 200 tails per cubic meter. The bred seeding is fed for three times a day, the bait amount cast each time is about 10 to 20 percent of the weight of the sea horse, and the adjustment of water temperature and light, as well as the prevention and treatment of damage work are carried out properly. The method can realize the scale artificial breeding of the sea horse seeding, and has the advantages of low breeding cost, high seeding survival rate and so on.

Description

Artificial cultivation method for sea horse fry

Technical field

The present invention relates to a kind of artificial cultivation method for sea horse fry.

Technical background

Hippocampus have the title of " southern genseng ", always is listed in famous and precious high-grade traditional Chinese medicine, is subjected to people and likes favoring with the domestic and international market.At present global annual hippocampus trading volume reaches 2,000 ten thousand approximately, but because demand is increasing, excessively capture disorderly drag for serious day by day, natural hippocampus resource exhaustion, big bulge in price.The hippocampus seedling is had relatively high expectations to the temperature of breeding water body, salinity etc., and its seedling is cultured has certain difficulty.

Summary of the invention

The object of the present invention is to provide a kind of scale artificial culture method for sea horse fry.

Above-mentioned purpose of the present invention is achieved in that

A kind of artificial cultivation method for sea horse fry, concrete steps: in 2～3 days, adopt siphonage to get rid of 1/2～2/3 outmoded seawater in the pond, and dirt at the bottom of the pond is absorbed after the hippocampus hatching, add and put fresh seawater.When changing water the seawater temperature difference be no more than ± 3 ℃.

Primary shoot is put about 800 tails for every cubic metre.Through 7～15 days, the seedling body was gradually big, and density can be cut down according to the circumstance.When condition is permitted, dredge as far as possible and support, hippocampus is grown well, reduce disease, grow up rapidly.Change water once 1～2 day summer, and the phase of surviving the winter can be changed water once in 4～6 days.In case of rainy, Chi Shui is light excessively, or anorexia, floating head, sounding occur, suddenly breathe heavily, runs helter-skelter, when the heavy minister bottom or pathology, in time change water, changes the pond and rescues or the processing of sheltering from heat or light.Under the high light, planktonic algae breeds in a large number, be unfavorable for the hippocampus growth, and water temperature is too high, easily causes disease.Shelter from heat or light daytime summer and autumn, avoids burning sun to tan by the sun.Winter-Spring sunlight a little less than, water temperature is low, prevent wind and anti-freezing, carries out heat insulation work.The present invention can realize scale artificial culture hippocampus seedling, has that aquaculture cost is low, the seedling percent advantages of higher.

Embodiment

The seedling of first output, body length has only 0.8～1 centimetre, and just can ingest the same day, puts immediately in people's nursery pond to cultivate.Fry rearing refers generally to cultivate from primary shoot the process of the long 6cm fry of body.Fry rearing is an important stage propagating hippocampus artificially, should prevent the fry introduced disease and mortality.Mainly need to grasp as descend to the mortal world a little:

1, cultivate water to clean, fresh, pollution-free, clear pond is changed once the next day of Chi Shuiying.If can cultivate that then survival rate is higher with flowing water.

2, water temperature requires temperature stabilization, answers temperature control at 20-28 ℃, is not less than 18 ℃, is not higher than 30 ℃.Temperature difference sudden change is no more than 2 ℃.

3, the fry of physique stalwartness can ingest after the output soon, so just answers bait throwing in the same day of output.It is agreeable to the taste that bait should strictly be grasped size, reasonable quantity and fresh and alive appropriateness.Throw something and feed 3-4 general every day, and daily ration, feeding quantity should be controlled in right amount, makes every effort to not have in the pond residual bait to spend the night, in order to avoid influence water quality.

4, breeding density is unsuitable overstocked, and in the ordinary course of things, every cubic metre nursery pond can be thrown in about primary shoot 200 tails.After about 15 days cultivation, to dredge again and support the juvenile fish pond, its density can be about 1000 tails.

Claims

1, a kind of artificial cultivation method for sea horse fry, concrete steps: in 2～3 days, adopt siphonage to get rid of 1/2～2/3 outmoded seawater in the pond, and dirt at the bottom of the pond is absorbed after the hippocampus hatching, add and put fresh seawater.

2, method according to claim 1, when being characterized in changing water the seawater temperature difference be no more than ± 3 ℃.