CN101496500A

CN101496500A - Technique for cultivating Hemifusus tuba

Info

Publication number: CN101496500A
Application number: CNA2009100370099A
Authority: CN
Inventors: 罗杰; 刘楚吾; 黄翔鹄
Original assignee: Guangdong Ocean University
Current assignee: Guangdong Ocean University
Priority date: 2009-01-21
Filing date: 2009-01-21
Publication date: 2009-08-05
Anticipated expiration: 2029-01-21
Also published as: CN101496500B

Abstract

The invention relates to hemifusus tuba artificial culture technology. The method utilizes a 20 m<2>culture pond. Cement boards with overspreading through holes are laid on the bottom of the culture pond; and the cement boards are 20cm away from the bottom of the culture pond so as to form space between the pond bottom and the cement boards. Then mesh cloth and fine sand are respectively arranged on the cement boards; a water inlet pipe is directly communicated with the pond bottom which is provided with a drain hole; and one end of the drain hole is extended out of the pond, while the other end of the drain hole in the pond is connected with a 70cm high plastic water pipe which is perpendicular to the water surface and is taken as a drain pipe. The initial density of released young snails is 400 to 500 pcs/m<2>; and with the growth of the individual young snails, the density is gradually reduced and the later stage culture density is 30 to 40 pcs/m<2>. During the water change, the water shoots up from the pond bottom through a sand layer; and due to the flushing action of the water, a great part of dirt in the sand layer such as the excrement of the hemifusus tuba is flushed away from the sand layer and is then discharged through the 70cm high drain pipe. Therefore, the culture environment is fully improved so as to benefit the growth of the hemifusus tuba, reduce the diseases, improve the survival rate, and simultaneously reduce the flushing frequency of the sand layer and consequently save much manpower.

Description

A kind of technique for cultivating Hemifusus tuba

Technical field

The invention belongs to the agriculture, forestry, animal husbandry, fisheries field, relate to a kind of in aquaculture the shellfish artificial culture technology, particularly a kind of technique for cultivating Hemifusus tuba.

Background technology

China is world shellfish culture big country.It is reported that national shellfish output reached 1073.3 ten thousand tons in 2007, accounted for more than 60% of world's shellfish production, the shellfish aquaculture has become one of mainstay industry of China's mariculture industry, also is the principal item of Export of Chinese Aquatic Products.But, the marine shellfish aquaculture is when increasing fast, the problem that also exists some to attract great attention: part breed variety germplasm is degenerated, the popular disease of shellfish is serious day by day and because pollute in the sea area and to excessive the fishing for, excessively capture of natural resources, cause some famous and precious shellfish stock number few, be tending towards in imminent danger.If above problems can not get effective solution, will inevitably seriously restrict the sustainable development of marine shellfish aquaculture and China's mariculture.Therefore; must strengthen the seed selection of marine shellfish new varieties energetically and introduce a fine variety Study on Technology; new varieties artificial propagation particularly higher to some economic worths, that wide market prospects are arranged and cultural technique research are the task of top priority of current culture fishery, this to conservation of nature germ plasm resource, improve the peasant to aquaculture enthusiasm with increase farmers' income and be significant.Trumpet shell whelk Hemifusu tuba is subordinate to Mollusca, Gastropoda, moth spiral shell superfamily, grey spiral shell section, be the torrid zone and subtropics kind, Guangdong has another name called " ringing spiral shell ", the east, the south that mainly are distributed in China are coastal, especially in the majority with marine site, the South China Sea Islands, inhabit the chiltern seabed of about 10 meters of shallow water depth, its life style is the type of dwelling at the end, and the husky habit of diving is arranged.The Trumpet shell whelk shell is large-scale, plough shape, two ends point, and chitin is hard, and there are one deck yellowish-brown or amber fine hair, spire nodosity projection and fine and closely woven rib line in the surface; The soft body hypertrophy, meat is tender, and is nutritious, and the neutral glycoprotein in the muscle (NGH) has significant tumor-inhibiting action, and delicious flavour.What sell on the present stage market all is the resources of catching natural waters by adopting.But along with excessive fishing for, the Trumpet shell whelk output in natural marine site descends gradually and is tending towards exhausted, and resource is subjected to heavy damage, causes Trumpet shell whelk on the market supply falls short of demand and cost an arm and a leg, and the per kilogram price is up to 120-140 yuan.

At present, both at home and abroad the research report of Trumpet shell whelk is mainly comprised the following aspects: 1. to the artificial breeding technique of Trumpet shell whelk; 2. the nutrient component of Trumpet shell whelk has been reported in research; 3. the point that suffocates, consumption rate and the ammonia excretion rate of Trumpet shell whelk; 4. aspect ecological and reproductive biology, the ecology and the reproductive habit of Trumpet shell whelk carried out observational study; 5. the cell and the molecular biology aspect of Trumpet shell whelk are studied.Take a broad view of in the above-mentioned report, Trumpet shell whelk culture pool cultivated all do not have relate to.

Summary of the invention

The objective of the invention is in order to overcome the deficiency that above-mentioned prior art exists, like perching this life habit and characteristics in silt particle according to Trumpet shell whelk, be subjected to pollutions such as self excreta, residual bait easily at its living environment and cause that this problem takes place disease, provide a kind of Trumpet shell whelk to culture pool cultivated technology.

In order to realize the foregoing invention purpose, the technical scheme that the present invention takes be this technique for cultivating Hemifusus tuba according to the following steps:

(1) breeding facility: utilize floor space to be 20m ², dark 1.2m the breed pond, lay the cement plate that is covered with through hole in its bottom, the height of cement plate at the bottom of apart from the pond is 20cm, makes at the bottom of the pond and forms the space between the cement plate; At the bottom of the water inlet connect the through pond of a plastic water pipe, outside the logical pond of osculum one end at the bottom of the pond, the end in the pond was with the high water pipe vertical with the water surface of 70cm as drainpipe; Shop 80 purpose screen cloths on cement block are spread the thick fine sand of 20cm again on screen cloth, the diameter of sand grains is φ 600～1000 μ m, and 8 gas charging stones are set on the sand face;

(2) putting in a suitable place to breed of spiral shell seedling: culture the pond and put Trumpet shell whelk spiral shell seedling in a suitable place to breed after thoroughly cleaning, sterilizing, the spiral shell seedling density that begins to put in a suitable place to breed the high 1.1～1.3cm of shell is 400～500/m ², along with growing up of spiral shell seedling individuality, cultivation density subtracts thin gradually, and later stage Trumpet shell whelk cultivation density is about 30～40/m ²

(3) daily management: in the Trumpet shell whelk breeding process, 8 o'clock every mornings picked up the residual bait in the pond, the fresh shellfish of throwing something and feeding, and feeding volume is decided on the situation of ingesting of Trumpet shell whelk, change water every day once, water up emits through layer of sand at the bottom of the pond when adding water, can make fine sand obtain effectively, clean fully, discharges from the high drainpipe of 70cm then, can improve the breeding environment of Trumpet shell whelk like this, reduce the generation of disease, help the growth of Trumpet shell whelk, and regularly to layer of sand clean, routine disinfection.

The specification of described cement plate is long 100cm, wide 50cm.

Trumpet shell whelk of the present invention is in the cultural technique of culturing the pond, be to like perching this life habit in silt according to Trumpet shell whelk, it farthest improves the living environment of Trumpet shell whelk, reduce the generation of pollution and disease, thereby improved the survival rate and the growth rate of Trumpet shell whelk, the while can reduce saves great amount of manpower to the wash number of layer of sand.

Description of drawings

Fig. 1 is that the present invention cultures pond polycrystalline substance schematic diagram.

Embodiment

As shown in Figure 1, utilize long 5 meters, wide 4 meters, floor space is 20m ², dark 1.2m breed pond 1 (being the breed pond of original cultivation abalone fry or shrimp seedling), lay the cement plate 2 of 40 block length 100cm, wide 50cm in its bottom, be covered with through hole 3 on the cement plate 2, the necessary bed hedgehopping 20cm of cement plate has formed the high space of about 20cm like this at the bottom of the pond and between the cement plate; At the bottom of the water inlet connects a plastic water pipe 6 through ponds, an osculum is arranged at the bottom of the pond, outside the logical pond of osculum one end, the termination in the pond has the high plastic water pipe vertical with the water surface of a 70cm as drainpipe; Lay 80 purpose screen cloths 4 on cement plate 2, at the bottom of preventing that fine sand from dropping to the pond, at the thick fine sand 5 of screen cloth 4 upper berth 20cm, the size of sand is moderate again, and the too thin shipwreck of sand grains does not reach the purpose to the layer of sand flushing to filter; The diameter of sand grains is too big, because the thin damage easily of the shell of young spiral shell so the sand grains size is advisable with φ 600～φ 1000 μ m, is provided with 8 gas charging stones on the sand face.Culture the pond and after thorough disinfection, just can put Trumpet shell whelk spiral shell seedling in a suitable place to breed, begin to put in a suitable place to breed 400～500/m of spiral shell seedling of the high 1.1～1.3cm of shell ², along with the growth of spiral shell seedling individuality, cultivation density subtracts thin gradually, and the cultivation density of last Trumpet shell whelk is about 30～40/m ²In Trumpet shell whelk aquaculture management process, automatically the height that keeps 70cm at ordinary times owing to the effect water level of plastic water pipe, every morning picks up the residual bait in the pond, fresh shellfish (the A Wen silk ribbon attached to an official seal or a medal shellfish of throwing something and feeding then, Perna viridis, paphia undulata etc., feeding volume is decided on the situation of ingesting of Trumpet shell whelk), adopt when changing water flowing water, the through hole 3 of the cement plate 2 at the bottom of the pond of plastic water pipe 6 water by water inlet, up emit through screen cloth 4 and layer of sand 5 again, because the souring of water, Trumpet shell whelk excreta in the layer of sand, fouls such as residual bait are most of to be dashed from layer of sand, discharges from osculum by the high plastic water pipe of 70cm then.For breeding environment is improved fully, layer of sand cleaned and routine disinfection completely in per 10 days.

Claims

1, a kind of technique for cultivating Hemifusus tuba is characterized in that according to the following steps:

(1) breeding facility: utilize floor space to be 20m ², dark 1.2m the breed pond, lay the cement plate that is covered with through hole in its bottom, the height of cement plate at the bottom of apart from the pond is 20cm, makes at the bottom of the pond and forms the space between the cement plate; At the bottom of the water inlet connect the through pond of a plastic water pipe, outside the logical pond of osculum one end at the bottom of the pond, the end in the pond was with the high water pipe vertical with the water surface of 70cm as drainpipe; Shop 80 purpose screen cloths on cement block are spread the thick fine sand of 20cm again on screen cloth, the diameter of sand grains is ф 600～1000 μ m, and 8 gas charging stones are set on the sand face;

(3) daily management: in the Trumpet shell whelk breeding process, every morning picks up the residual bait in the pond, the fresh shellfish of throwing something and feeding, feeding volume is decided on the situation of ingesting of Trumpet shell whelk, change water every day once, water up emits through layer of sand at the bottom of the pond when adding water, discharges from the high drainpipe of 70cm then, and regularly layer of sand is cleaned, sterilizes.

2, according to the described technique for cultivating Hemifusus tuba of claim 1, it is characterized in that: the specification of described cement plate is long 100cm, wide 50cm.