CN103026990A

CN103026990A - Technology for cultivating takifugu flavidus summer fingerlings in cement pond of simple plastic greenhouse

Info

Publication number: CN103026990A
Application number: CN2011103039847A
Authority: CN
Inventors: 张根玉; 施永海; 朱雅珠; 刘建忠; 严银龙
Original assignee: SHANGHAI AQUATIC PRODUCT TECHNOLOGY PROMOTION STATION; Shanghai Fisheries Research Institute
Current assignee: Shanghai Fisheries Research Institute Shanghai Fisheries Technical Extension Station
Priority date: 2011-10-10
Filing date: 2011-10-10
Publication date: 2013-04-10
Anticipated expiration: 2031-10-10
Also published as: CN103026990B

Abstract

The invention discloses a technology for cultivating takifugu flavidus summer fingerlings in a cement pond of a simple plastic greenhouse. The cement pond is adopted, and an arch-shaped ring top is formed above the cement pond. The technology is characterized in that: a dimmable shading film covers on the arch-shaped ring top; the air density in the cement pond is 1-1.5 pieces per square meter; the stocking sizes are 10-12 millimeters in full lengths per fingerling; the stocking density is 1,000-1,500 fingerlings per square meter; the water level is 70 centimeters during stocking; 20 centimeters of fresh water is injected every day from the second day, the cement pond is full of water four days later, and 50 percent of water is changed every other day from the fifth day; after 10-15 days of cultivation, bait scraps and fish excrement are cleared; the water quality indexes are that: the salinity of sea water is 0.8-1.2 percent, the water temperature is 25-28 DEG C, the dissolved oxygen is over 5 mg/L, and the pH is 7.5-8.5; medium-sized cladocerans and copepods are fed at an earlier stage, and large frozen fairy shrimps are fed at a middle stage; and after the full lengths of fingerlings are up to 30 millimeters, a compound feed is fed instead of the frozen fairy shrimps, and an eel feed is fed completely after 3-4 days of transition.

Description

Simple and easy plastic tunnel cement pit is cultivated the yellow Fugu summer flower of chrysanthemum fingerling technology

Technical field

The present invention relates to aquaculture, the especially a kind of yellow Fugu summer flower of simple and easy plastic tunnel cement pit cultivation chrysanthemum fingerling technology of utilizing.

Background technology

The yellow Fugu of chrysanthemum (Takifugu flavidus) belongs to Tetraodontiformes, the Puffer suborder, Molidae, Fugu belongs to, and mainly is distributed in China's the East China Sea and the Yellow Sea and the Bohai Sea, belongs to coastal waters, temperate zone demersal fishes, the general migration of not making long distance, mainly take the invertebrates such as shell-fish, shellfish and small fish as food, have very high nutritive value and medical value, be described as first of " the Changjiang river three delicacies ".Pure white as the frost of its muscle, the meat flavour fat is beautiful, fresh and tender good to eat, is rich in protein, and is nutritious, contains protein 18.7 grams in per 100 gram muscle according to surveying and determination, higher than the content of yellow croaker; And fat content is 0.26 to be minimum a kind of of fatty,fiss content, contain in addition abundant vitamin, mineral matter and multiple trace element to the human body beneficial, its internal organs contain the nerve element of severe toxicity, be referred to as Tetrodotoxin (TTX), at the utmost point medically using value is arranged, international market every gram Tetrodotoxin price is up to 5-6 ten thousand U.S. dollars.The yellow Fugu of chrysanthemum is that a class economic worth is high, the aquatic products treasure that potentiality to be exploited is large: its Adaptable growth temperature is that 15-30 ℃, salinity are 5-30 ‰, and in the river Puffer fingerling class of cultivation, the yellow Fugu market price of chrysanthemum is the highest, reaches 150-200 unit/kilogram at home.In view of good economic worth, practical value and biological property, propagating artificially progressively of globefish risen, the large-scale cultivation of the yellow Fugu of chrysanthemum just needs a large amount of fingerlings, the yellow Fugu summer flower of chrysanthemum nurture of fish fingerlings adopts the pond rearing method mostly at present, the method is subjected to natural climate condition restriction obviously and the bottom material of pond for breeding situation affects, and exists cultivating survival rate low (40-60%), fry Yin Wendu is low and poor growth (40-50 days), problem that floor space is large.

Summary of the invention

The purpose of this invention is to provide a kind of simple and easy plastic tunnel cement pit and cultivate the yellow Fugu summer flower of chrysanthemum fingerling technology.

Technical scheme of the present invention adopts the rectangle cement pit, smooth at the bottom of the pond, 3 ° of-5 ° of gradients are arranged, the cement pit top arranges the bow-shaped ring top, and the top covers the transparent heat insulating plastic film, it is characterized in that adding a cover at top, bow-shaped ring top the film that shades of tunable optical, the cement pit water inlet filters with 60 eye mesh screens, fry escaped when delivery port stopped draining with 15 eye mesh screens, placed the gas head in the cement pit, and it is 1-1.5/m that the gas head is placed density ²With fan blower continuous charge in 24 hours, the qi of chong channel ascending adversely amount is as the criterion with the water surface spray that rises, before putting seedling cement pit is sterilized, water inlet 20cm is with full pool spilling head after the dissolving of 20PPm bleaching powder, soak after 48 hours, draining is rinsed well, dries to re-use in 3-4 days, and cultivating water is 10-15 ‰ estuarine water for the local salinity through pond one-level sedimentation and filtration; Stocking size is total length 10-12mm/ tail, breeding density is 1000-1500 tail/m2, water level 70cm when putting seedling, second day rises and injects the new water of 20cm every day, fill it up with after 4 days, the depth of water reaches 1.5m, and water 50% is changed in beginning in the 5th day every other day, cultivate after 10-15 days, postlarva is long to 3cm, needs the cleaning of falling pond bait chip and fish excreta, and the method in pond is that full Chi Shuifang is gone 2/3, draw in the net fish is moved in the preprepared clear water reserviors of next door, two pond fishes are divided rare one-tenth three ponds simultaneously, the water quality conventional index is seawater salinity 8-12 ‰, natural temperature 25-28 ℃, dissolved oxygen is greater than 5mg/L, PH 7.5-8.5; Fry total length 10mm threw something and fed and salvaged by the pond early stage medium-sized cladocera and copepoda, mid-term the fry total length 15-25mm freezing large fairy shrimp that begins to throw something and feed; Biological feed feeding method: regularly, fixed point, on a small quantity repeatedly, lure the fish cluster to look for food, throw while eating, till throwing into the shoal of fish and scattering, accomplish that daily ration, feeding quantity is food ration; The fry total length reaches 30mm, fry bait begins to be transitioned into manufactured feed by freezing large fairy shrimp, eel feed is made cake to be placed on the material platform, fry is taken the material platform away after baiting half an hour near eel feed, replenish the freezing large fairy shrimp of throwing something and feeding, the eel feed of all throwing something and feeding afterwards in transition 3-4 days enters normal marketable fish cultivation until migrate to the outer pool.

The present invention has created a kind of existing pond culture that is different from respect to the outstanding feature of prior art, the yellow Fugu summer flower of chrysanthemum rapidly and efficiently fingerling cultivating method, improved the survival rate of the yellow Fugu summer flower of chrysanthemum nurture of fish fingerlings, 40-60% by original conventional pond rearing has brought up to 85-95%, thereby has reduced the cost of summer flower nurture of fish fingerlings; Just can obtain the juvenile fish of total length 40-50mm through 20 days cultivations, the cultivation time with respect to conventional pond rearing 40-50 days has shortened nearly 1 month, has elongated the yellow Fugu of chrysanthemum time of conventional cultivation then, shorten the yellow whole culture-cycle of Fugu of chrysanthemum, saved aquaculture cost.The present invention is easy and simple to handle, is easy to promote.

Embodiment

The production technology step comprises: adopting rectangle cement pit area is 220m ², dark 1.8m, smooth at the bottom of the pond, 3 ° of-5 ° of gradients are arranged, be convenient to artesian water, advance draining conveniently.Cement pit is that the top arranges bow-shaped ring top, and the top covers the transparent heat insulating plastic film, for preventing the algae Fast-propagation, reduces light transmittance, adds a cover the film that shades of tunable optical at the top.The cement pit water inlet filters with 60 eye mesh screens, and fry escaped when delivery port stopped draining with 15 eye mesh screens.Place the gas head in the cement pit, it is 1.2/m that the gas head is placed density ², with Roots blower continuous charge in 24 hours, the qi of chong channel ascending adversely amount is as the criterion with the water surface spray that rises.Before putting seedling cement pit is sterilized, water inlet 20cm with full pool spilling head after the dissolving of 20PPm bleaching powder, soaks after 48 hours, and draining is rinsed well, dries to re-use in 3-4 days.Cultivating water is that local salinity is 10-15 ‰ estuarine water, preferably filters through pond one-level precipitation, 80 mesh sieve tulles before the use; Stocking size is total length 10-12mm/ tail, and breeding density is 1000-1500 tail/m ²Water level 70cm when putting seedling, second day rise and inject the new water of 20cm every day, fill it up with after 4 days, and the depth of water reaches 1.5m.Along with the rising water body increasing of water level, the cultivation density of postlarva is gradually rare thus.Water 50% is changed in beginning in the 5th day every other day, because soil pick-up not at the bottom of the pond, cultivate that (postlarva is long to 3cm) needs pond after 10-15 days, with cleaning a large amount of bait chips and fish excreta is arranged.Fall the concrete grammar in pond: will expire Chi Shuifang and go 2/3, and draw in the net fish is moved in the preprepared clear water reserviors of next door, and 2 pond fishes be divided rare one-tenth 3 ponds simultaneously, the growing environment of more favourable fish postlarva.Water quality conventional index: seawater salinity: 8-12 ‰, natural temperature: 25-28 ℃, dissolved oxygen is greater than 5mg/L, PH 7.5-8.5.

Bait: fry total length 10mm threw something and fed and salvaged by the pond early stage medium-sized cladocera and copepoda, mid-term the fry total length 15-25mm freezing large fairy shrimp that begins to throw something and feed; The biological feed feeding method: regularly, fixed point, on a small quantity repeatedly, lure on the fish cluster and look for food, throw while eating, throw into the shoal of fish eat almost scatter till, accomplish that daily ration, feeding quantity is food ration, do not allow unnecessary bait polluted-water; The fry total length reaches 30mm, fry bait begins to be transitioned into manufactured feed by freezing large fairy shrimp, eel feed is made cake to be placed on the material platform, fry can slowly bait near eel feed, take the material platform after half an hour away, replenish the freezing large fairy shrimp of throwing something and feeding, the transition 3-4 days eel feeds of all throwing something and feeding afterwards enter normal marketable fish cultivation until migrate to the outer pool.

Claims

1. simple and easy plastic tunnel cement pit is cultivated the yellow Fugu summer flower of chrysanthemum fingerling technology, adopt the rectangle cement pit, smooth at the bottom of the pond, 3 ° of-5 ° of gradients are arranged, the cement pit top arranges the bow-shaped ring top, the top covers the transparent heat insulating plastic film, it is characterized in that adding a cover at top, bow-shaped ring top the film that shades of tunable optical, the cement pit water inlet filters with 60 eye mesh screens, and fry escaped when delivery port stopped draining with 15 eye mesh screens, place the gas head in the cement pit, it is 1-1.5/m that the gas head is placed density ²With fan blower continuous charge in 24 hours, the qi of chong channel ascending adversely amount is as the criterion with the water surface spray that rises, before putting seedling cement pit is sterilized, water inlet 20cm is with full pool spilling head after the dissolving of 20PPm bleaching powder, soak after 48 hours, draining is rinsed well, dries to re-use in 3-4 days, and cultivating water is 10-15 ‰ estuarine water for the local salinity through pond one-level sedimentation and filtration; Stocking size is total length 10-12mm/ tail, breeding density is 1000-1500 tail/m2, water level 70cm when putting seedling, second day rises and injects the new water of 20cm every day, fill it up with after 4 days, the depth of water reaches 1.5m, and water 50% is changed in beginning in the 5th day every other day, cultivate after 10-15 days, postlarva is long to 3cm, needs the cleaning of falling pond bait chip and fish excreta, and the method in pond is that full Chi Shuifang is gone 2/3, draw in the net fish is moved in the preprepared clear water reserviors of next door, two pond fishes are divided rare one-tenth three ponds simultaneously, the water quality conventional index is seawater salinity 8-12 ‰, natural temperature 25-28 ℃, dissolved oxygen is greater than 5mg/L, PH 7.5-8.5; Fry total length 10mm threw something and fed and salvaged by the pond early stage medium-sized cladocera and copepoda, mid-term the fry total length 15-25mm freezing large fairy shrimp that begins to throw something and feed; Biological feed feeding method: regularly, fixed point, on a small quantity repeatedly, lure the fish cluster to look for food, throw while eating, till throwing into the shoal of fish and scattering, accomplish that daily ration, feeding quantity is food ration; The fry total length reaches 30mm, fry bait begins to be transitioned into manufactured feed by freezing large fairy shrimp, eel feed is made cake to be placed on the material platform, fry is taken the material platform away after baiting half an hour near eel feed, replenish the freezing large fairy shrimp of throwing something and feeding, the eel feed of all throwing something and feeding afterwards in transition 3-4 days enters normal marketable fish cultivation until migrate to the outer pool.