CN101253851A

CN101253851A - Breeding method of six palps catfish water bloom fish fry and summer fry

Info

Publication number: CN101253851A
Application number: CNA2008100639202A
Authority: CN
Inventors: 张有
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-28
Filing date: 2008-01-28
Publication date: 2008-09-03

Abstract

The invention discloses a method for breeding the silurus soldatovi from tiny fries to summer fries. The method breeds summer fries of fine quality by adopting technical measures including sterilizing the pond, controlling the water quality, putting in the fries, managing the breeding, etc. The calces is utilized to clean up the pond in the invention so as to increase the permeability of the silt at the bottom of the pond, increase the ionized calcium in the water, facilitate the reproduction of the aquatic organisms and effectively degerm and kill harmful bacteria as well as various aquatic animals. The silt at the bottom of the pond provides natural food for the fries put in the pond, which increases the growth and the survival rates of the fries. The shading net, immensed in the herbal medicine, is arranged on the surface of the pond, which facilitates the attachment of the fish body, prevents the wind wave, and reduces the diseases to facilitate the survival of the fries. When the fry yolk bags disappear to half, the tiny fries are put in the pond for stocking. The appropriate stocking density is 30,000-50,000 fries per mu, which provides sufficient natural food for the fries. The fries have a high rate of growth and a survival rate of 95%.

Description

The breeding method of six palps catfish water bloom fish fry and summer fry

Technical field

The present invention relates to the breeding method of a kind of fish fry, be specifically related to the process of a kind of six palpus catfish from the summer flower fry of long 3-4 centimetre of spray fry rearing adult.

Background technology

Six must also claim a bosom Nian by catfish, be Heilongjiang Province real estate fish, this flesh of fish matter delicacy, delicious in taste, nutritious, instant, being beneficial to deep processing, having high edibility and certain medical value, is a kind of famous-brand and high-quality indigenous kind that liked by consumers in general.Because this fish was polluted by natural water area in recent years, and the part rivers are withered, and the people is the influence of factors such as overfishing, and natural resources is almost exhausted.Six palpus catfish kind adult fish cultures are different with other fry, when just descending the pool, six palpus catfish seedlings are distributed in each position of water body unlike other fry, do not having under the attachment situation, it mainly is the bottom in the fishpond of lying prone, when running into the strong wind sky, the water body waviness, the one, the water body wave can make the fry following sea impact, and causes abdominal injury and catches; The 2nd, cause the water body muddiness, silt enters the gill portion of fish, influences eupnea and causes death, and survival rate of fish fry is very low.Prior art is cultivated to the survival rate of the fingerling more than the long 3-4 of body centimetre by spray and only is 30-32%.

Summary of the invention

The object of the present invention is to provide a kind of six must catfish the novel method for cultivating from the spray fry to the summer flower fry, make and send out pool survival rate and send out pool survival rate than other measure and improve closely more than three times, survival rate reaches 95%.

The present invention with six must the cultivating process of Nian from the spray fry to the summer flower fry be:

(1), pond sterilization: the pond is Tu Chi, and area 2-10 mu is smooth at the bottom of the pond, and mud is 8-10 centimetre at the bottom of the pond; Six must Nian preceding 8-10 days of the pool under the spray fries, clean up the pond with quicklime, water filling 50-70 centimetre then, placed 5-7 days;

(2), the pool under the fry: select purebred six palpus Nian parent populations, the six palpus catfish seedlings that adopt the artificial induced spawning breeding to obtain behind the 2-3 of fry after hatching the is emerged days disengaging fish nests, are lain prone at the bottom or the periphery of hatchery, provide nutrition by yolk sac, disappear to half pool at present at yolk sac; The water surface in the pond is arranged shade net;

(3), breeding density: breed fish fry with every mu of 3-5 ten thousand tails;

(4), fry is fed: 1-7 days, the quantity of wheel animalcule, cladocera, copepoda enough guarantees the fry needs in the water body, along with growing up of fry, 7 days laggard pedestrian workers throw something and feed Limnodrilus hoffmeisteri, throw in other kind length 0.4-0.6mm spray fry, search for food for six palpus Nian, guarantee that fry needs; And every day in the pond oxygen supply once, stirred ponds in 7 days at the bottom of mud once;

(5), fry grows up to: when individuality length arrived 3-4 centimetre, seed rearing was finished.

Described shade net adopts nylon rope net and is soaked by the soup of the fried one-tenth of Herba Andrographitis.

Describedly clean up the pond with quicklime, every mu of quicklime consumption 60-75kg will dissolve back full pool spilling head every nook and cranny at the bottom of the pond.

The invention has the advantages that:

1, clean up the pond with quicklime, increase mud permeability at the bottom of the pond, adjust water PH value stable, for water body increase ionized calcium, help hydrobiological breeding, also can effectively kill harmful germ and various aquatic animal at the bottom of the pond.Mud provides good to eat natural bait for the pool under the fry at the bottom of the pond, to improving the growth rate of fry, improves survival rate and has better action, and reduce cost.

2, arrange shade net at the water surface in pond, weave the net that forms by nylon rope, and soak with the Herba Andrographitis soup, shade net had both played sun-proof, windbreak function, helped the fish body again and adhered to; Reduce the generation of viral disease behind the herbal medicine immersion, help surviving of fry.

3, disappear at the fry yolk sac and put the pool under the spray fry in a suitable place to breed to a half, breeding density every mu of 3-5 ten thousand tails that suit make fry that sufficient natural bait be arranged, and fast growth improves survival rate of fish fry.

4, the present invention must change the breeding method that Tu Chi raises the summer flower fry over to from the breeding pond by Nian spray fry with six, and survival rate of fish fry reaches more than 95%.

Embodiment

1, pond sterilization: the pond is Tu Chi, and area can be chosen in 2-10 mu, and is smooth at the bottom of the pond, and mud is no more than 10 centimetres at the bottom of the pond; Six must Nian preceding 8-10 days of the pool under the spray fries, clean up the pond with quicklime, every mu of consumption 60-75kg is with quicklime dissolving back full pool spilling head every nook and cranny at the bottom of the pond, water filling 50-70 centimetre then.Through after 5-7 days, get a ml water and be placed in the test tube and observe, small particles movable more than 10 is arranged, this moment is the wheel animalcule peak just, if use microscopic examination, discovery arm tail wheel worm occupies the majority.Water quality has reached the standard that breeds fish fry, puts the spray fry this moment in a suitable place to breed.

2, the pool under the fry: select purebred six palpus Nian parent populations, the six palpus catfish seedlings that adopt the artificial induced spawning breeding to obtain, after breaking away from the fish nest in the 2-3 of fry after hatching is emerged days, lie prone at the bottom or the periphery of hatchery, provide nutrition by yolk sac, disappearing to half pool at present at yolk sac, is fabulous opportunity on the pool down.Chinese herbal medicine Herba Andrographitis 3 grams are got in every cubic metre of pond, and the decocting method of traditional Chinese herbal decoction makes soup routinely, soaks shade net, arranges shade net at the water surface in pond, and area accounts for 1/2nd or 1/3rd of whole pond.

3, breeding density: must Nian can occur so density is not excessive, being advisable with every mu of 3-5 ten thousand tails generally speaking when the inanition because of six from the cannibalisation phenomenon of eating mutually.

4, fry is fed: 1-7 days, the quantity of wheel animalcule, cladocera, copepoda enough guarantees the fry needs in the water body, along with growing up of fry, detect after 7 days water quality manually throw something and feed Limnodrilus hoffmeisteri, throw in other kind length 0.4-0.6mm spray fry, search for food for six palpus Nian, guarantee that food needs; And every day in the pond oxygen supply once, stirred ponds in 7 days at the bottom of mud once, increase the permeability of bed mud, provide nutritive salts to water body, promote the natural bait breeding.

5, fry grows up to: when individuality length arrived 3-4 centimetre, seed rearing was finished.

2006 and 2007 carry out in this enterprise fishpond must sending out in the pool by Nian spray fries from numerous six, adopt this technology to carry out six and must send out the pool by the catfish seedling, put 950,000 and 1,100,000 six palpus Nian spray fries respectively in a suitable place to breed, cultivation through 22 days, go out pool 3-4 centimetre of summer China's fry 890,000 tails and 1,050,000 tails, survival rate is respectively 94% and 96%, and average survival is 95%, is average about 3 times of sending out pool survival rate in other area.

Claims

1, a kind of breeding method of six palps catfish water bloom fish fry and summer fry is characterized in that:

(3), breeding density: breed fish fry with every mu of 3-5 ten thousand tails;

2, the breeding method of a kind of six palps catfish water bloom fish fry and summer fry according to claim 1 is characterized in that: described shade net adopts nylon rope net and is soaked by the soup of the fried one-tenth of Herba Andrographitis.

3, the breeding method of a kind of six palps catfish water bloom fish fry and summer fry according to claim 1 is characterized in that: every mu of quicklime consumption 60-75kg, will dissolve full pool spilling head every nook and cranny at the bottom of the pond, back.