CN1126025A

CN1126025A - Method for breeding ricefield eel in net case and its breeding case

Info

Publication number: CN1126025A
Application number: CN95110362A
Authority: CN
Inventors: 彭秀真; 王育锋; 周嗣泉; 赵瑞敏; 梁益岭
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-08
Filing date: 1995-03-08
Publication date: 1996-07-10

Abstract

The net cage culture method of finless eel features that disinfected net cage is allocated, shielding matter is put on water surface in net cage, and disinfected young finless eels are cultured in net cage. Said net cage is composed of frame, vertical and bottom nets, floating frame with floating balls that is semi-floated at a distance of 10-20 cm from bottom net, and the living and feeding table made of tubular bodies.

Description

Swamp eel cage culture method and breeding box

What the present invention relates to is Technique in Fishes cultural method and breed apparatus, especially swamp eel cage culture method and breeding box.

Because swamp eel has unique shallow water position, live in caves and the biological requirement of high water quality, so, propagate swamp eel so far artificially, adopt pond, bed mud, the rare foster method in mud cave always.This kind cultural method exist build pond expense height, be not easy to manage, average single rate is low and form the back and receive the big problem of difficulty of pouncing on.So far still do not retrieve the new method that other propagates swamp eel artificially.

Purpose of the present invention is exactly at the existing in prior technology problem, and a kind of technical scheme that adopts the used breeding box of method that net cage propagates swamp eel artificially and this method is provided.

This programme is realized by following technical measures.Swamp eel cage culture method is that the breeding box after sterilization is placed water, and with rope and fixator breeding box is located, in order to avoid breeding box is washed away by current or moved by the people.The water surface is placed the veil that keeps the sun off in case, but will keep the interior water surface of case that 1/3rd bright pool is arranged.This veil is the aquatic floating plant weter hyacinth.With the eel kind of cabrage 16 to 21 gram after 3 percent saline solution sterilization, density with every square metre 190 to 300 tail is put in a suitable place to breed in breeding box, and beginning bait throwing in food calling, the bait of can offeing medicine after the feed of eel kind is driven away eel kind internal parasite, can enter normal feeding and management later on.During normal management, to monitor water temperature every day, will detect water quality in per 10 to 20 days, can adopt trickle, dash to irritate new water, intersect to sprinkle and execute the photosynthetic bacteria dilution and bleaching powder is regulated water quality; Raising through three to six months, the finished product swamp eel can be gathered in the crops.Can only culture a season under field conditions (factors), if under conditions such as Artificial Control water temperature, then can culture continuous results continuously in every year.And the used breeding box of swamp eel cage culture method, mainly form by box-frame 1, upright net 8 and spacer screen 9, the characteristics of this programme are that the height of described upright net 8 is between 75 to 85 centimetres, floating frame 3 is housed on the box-frame 1 of distance spacer screen 90 to 20 centimeters, four ball floats 2 are housed on floating frame 3 at least; On spacer screen 9, the below of floating frame 3 is placed with at least one group of nest 5 of living away from home, and is fixed with sinker 6 in a side of the nest 5 of living away from home, and connects a float 4 at an end of the nest 5 of living away from home, and nest 5 is in heeling condition to guarantee to live away from home.Between spacer screen 9 and floating frame 3, also mounted a bait table 7 in addition at least.This breeding box also has following concrete characteristics, and the mesh of promptly described upright net 8 is 0.5-2 centimetre.The mesh of described spacer screen 9 is 0.5 centimetre.The described nest 5 of living away from home is by 2 to 8 centimetres of the internal diameters more than two, long 40 to 60 centimetres nontoxic tubular body bunchy or in a row connect and compose.What described sinker 6 adopted is alnico magnets.And described bait table 7 is a high 8-10 centimetre of box-like hurdle baskets.

Adopt method of the present invention to propagate swamp eel artificially, can save the pond expense of building, also be beneficial to centralized management, pounce on the time receiving forming, only need the finished product swamp eel, pull out from net cage with dredger and get final product by pouring out in the nest of living away from home with net cage, extremely convenient.The breeding box that adopts has floating frame can guarantee the shallow water requirement that swamp eel is required, and the nest of living away from home of inclination is arranged in the case, then satisfies swamp eel and lives in caves and require and water surface breathing condition.The magnetic sinker of living away from home on the nest can make the magnetization of waters, home range again, helps improving water quality.In addition, breeding box also has the upright net of certain altitude on the water surface, can guarantee that then swamp eel can't climb, jump out case.This shows that the present invention has filled up the blank of prior art, it is extremely significant that its effect proves.

Description of drawings:

Fig. 1 is the structural representation of breeding box embodiment of the present invention.

By a specific embodiment, further elaborate technology contents of the present invention now.Swamp eel cage culture method is that the breeding box after sterilization is placed water, and with rope and fixator breeding box is located, in order to avoid breeding box is washed away by current or moved by the people.The water surface is cultured eight strain weter hyacinths as the veil that keeps the sun off in case, can keep the interior water surface of case that 1/3rd bright pool is arranged approximately.Then, with about 20.8 grams of cabrage 165 tail eel kinds, after 3 percent saline solution sterilization, put in a suitable place to breed in the breeding box that is with 0.72 square metre of water surface, breeding density is every square metre 229 tail, and beginning bait throwing in food calling.After the feed of eel kind, threw the pharmaceutical chemistry that contains zental, and, can enter normal feeding and management later in the 3rd day in order to drive away eel kind internal parasite.Monitor water temperature every day during normal management, detected DO, a H in per 15 days ₂S, ammonia nitrogen, nitrite nitrogen, and according to the water quality situation adopt trickle, dash and irritate new water, intersect to sprinkle and execute the photosynthetic bacteria dilution and bleaching powder is regulated water quality, in addition, also will often remove upright net and spacer screen attachment under water, watch swamp eel vegetative activity situation in the case at any time, pinpointing the problems in time solves.Raising through 97 days, finished product swamp eel results get average cabrage 74.2 grams 151 tails, totally 11.2 kilograms of gross weights.And the used breeding box of this cultural method, be that to support mesh by box-frame 1 be that 0.8 centimetre of upright net 8 and mesh are 0.5 centimetre of spacer screen 9, this box-frame 1 is a hexahedron, enclose 0.72 square metre of water area, it highly is 80 centimetres, wooden floating frame 3 is housed on the box-frame 1 of distance spacer screen 9 about 18 centimeters, and four ball floats, 2 auxiliary floating frames 3 are housed on floating frame 3 can bubble through the water column.On spacer screen 9, the below of floating frame 3, be placed with six groups by 4 centimetres of eight internal diameters, the nest 5 of living away from home that long 60 centimetres non-toxic plastic pipe bunchy connects and composes, side at the nest 5 of living away from home is fixed with the sinker made from permanent magnet 6 again, and connect a float 4 at an end of the nest 5 of living away from home, and tilt in water with the nest 5 that guarantees to live away from home, help swamp eel and go out aquatic respiration.In addition, between spacer screen 9 and floating frame 3, also mount two basket bait table 7 in high 8 centimetres of box-like hurdles.

Claims

1. swamp eel cage culture method is that the breeding box after sterilization is placed water, and with rope and fixator breeding box is located; The water surface is placed veil in case, but will keep the interior water surface of case that 1/3rd bright pool is arranged; With the eel kind of cabrage 16 to 21 gram after 3 percent saline solution sterilization, density with every square metre 190 to 300 tail is put in a suitable place to breed in breeding box, and beginning bait throwing in food calling, the bait of can offeing medicine after the feed of eel kind is driven away eel kind internal parasite, promptly enters normal feeding and management later on; During normal management, to monitor water temperature every day, will detect water quality in per 10 to 20 days, can adopt trickle, dash to irritate new water, intersect to sprinkle and execute the photosynthetic bacteria dilution and bleaching powder is regulated water quality; Raising through three to six months, the finished product swamp eel can be gathered in the crops.

2. cultural method according to claim 1 is characterized in that described veil is an aquatic floating plant, and this water plants can be a weter hyacinth.

3. the used breeding box of the described swamp eel cage culture of claim 1 method, mainly form by box-frame 1, upright net 8 and spacer screen 9, the height that the invention is characterized in described upright net 8 is between 75 to 85 centimetres, floating frame 3 is housed on the box-frame 1 of distance spacer screen 90 to 20 centimeters, four ball floats 2 are housed on floating frame 3 at least; On spacer screen 9, the below of floating frame 3 is placed with at least one group of nest 5 of living away from home, and is fixed with sinker 6 in a side of the nest 5 of living away from home, and connects a float 4 at an end of the nest 5 of living away from home; Between spacer screen 9 and floating frame 3, also mounted a bait table 7 in addition at least.

4. breeding box according to claim 3, the mesh that it is characterized in that described upright net 8 is 0.5-2 centimetre.

5. breeding box according to claim 3, the mesh that it is characterized in that described spacer screen 9 is 0.5 centimetre.

6. breeding box according to claim 3 is characterized in that the described nest 5 of living away from home is by 2 to 8 centimetres of the internal diameters more than two, long 40 to 60 centimetres nontoxic tubular body bunchy or in a row connect and compose.

7. breeding box according to claim 3, what it is characterized in that described sinker 6 employings is alnico magnets.

8. breeding box according to claim 3 is characterized in that described bait table 7 is a high 8-10 centimetre of box-like hurdle baskets.