CN103348942A - Method for fine breeding of bluefin tunas - Google Patents
Method for fine breeding of bluefin tunas Download PDFInfo
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- CN103348942A CN103348942A CN2013103090931A CN201310309093A CN103348942A CN 103348942 A CN103348942 A CN 103348942A CN 2013103090931 A CN2013103090931 A CN 2013103090931A CN 201310309093 A CN201310309093 A CN 201310309093A CN 103348942 A CN103348942 A CN 103348942A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Provided is a method for fine breeding of bluefin tunas. Water in a pond is fresh, the depth of the pond is 2.0-2.5m, and the pH value of the pond is 7.0-8.5. A mesh box is made of polyethylene meshes. In the morning of the middle of March to the middle of April, the water temperature is 15-20 DEG C, bluefin tuna adult fish is thrown in, and 2250-3000 silver carp fingerling fishes with the lengths of 10-12cm and 375 spotted silver carps are intercropped in one square hectometer. Compound microorganism fertilizer of the method for fine breeding of the bluefin tunas is added to promote the bluefin tunas to grow quickly, the content of EPA is increased, the diseases of the bluefin tunas are reduced, the bluefin tunas died caused by the diseases are reduced, beneficial microorganisms in the water are increased, and the final quality and quantity are both improved.
Description
Technical field
The present invention relates to the method for aquaculture, especially a kind of method of bluefin tuna cultivation.
Background technology
Bluefin tuna (Bluefin Tuna) is fingerling largest in the Tuna--like Fishes.The body that health is short and solid, taper is elongated, tail fin becomes cross-like; The body bottom is bright to the color of side, and upper body then is navy blue, and fin is deep dark, and finlet then is to present little yellow, and the caudal peduncle protruded ridge is black.Whole body is by squama, and mouth is quite large, and eye is little, and pectoral fin is short, terminal central authorities less than first dorsal, and this is the maximum characteristics of this kind.Long general 1-3 meters of body, large person reaches more than 3 meters more than 700 kilogram of body weight.
Bluefin tuna also has the above shoal of fish of 1000 tails often with 50-60 tails in groups.Perch water layer from top layer to 50 meter deep layer, 10-20 ℃ of optimum water temperatures, bait is take catfish, sardine, mackerel, squid and shell-fish as main, because the industry development time is short, the practitioner is uneven, exist at present distinct issues to be that culture diseases increases, medication is lack of standardization even minority unit's abuse forbidden drug is arranged, to such an extent as to the phenomenon of non-conformity article fish listing occurs.Become the bottleneck of restriction bluefin tuna production and sales by the exceed standard quality security problem that causes of aquatic products medicament residue.Existing single type fish guano and compound fish guano also have a common shortcoming, and that can not be killed harmful bacteria, worm exactly, therefore, lack the effectively effect of control of fish disease.Can increase the content of beneficial bacterium in the fishpond by the compound fish guano of microorganism, effectively reduce the generation of fish diseases, also not report about being exclusively used in this complex microorganism fish guano at present.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the method that provides a kind of bluefin tuna to become more meticulous cultivation has broken through the key technology bottleneck of bluefin tuna net cage.
According to technical scheme provided by the invention, the method that a kind of bluefin tuna becomes more meticulous and cultivates may further comprise the steps:
(1) breeding environment: cultivating the pond is circle or square water mud sump, area 12 ~ 20m2, dark 0. 7 ~ 1. 0 m; The intermediate rearing pond is circle or square water mud sump, area 30 ~ 50 m2, and dark 0. 8 ~ 1. 0 m in pond require water circulation and dirt eliminating function good; Water quality is transparent, limpid, does not contain the harmful heavy metal ion, and sulphide is no more than 0.02mg/L, and total coliform count is less than 5000/L, and salinity is more than 20; Illumination: 500lx ~ 1500lx, even, soft, not dazzling; Water temperature: 15 ℃ ~ 18 ℃; Salinity: suitable salinity is 25 ~ 30; PH maintains between 7.6 ~ 8.2; Dissolved oxygen: greater than 6 m g/L; Net cage selects the polythene net sheet to make tank material, net cage is double-deck, specification 6.0m * 10.0m * 6m, internal layer mesh 3.5cm, outer mesh 4.0cm with large mao bamboon colligation, is fixed on gang rope on the pile of four jiaos of tank towers around the net cage top, also available foamed plastics ball float or old metal bucket are as buoyancy, framework is fixed in the waters with anchor, and the net cage bottom is tied the sandstone bag and made sinker, and four jiaos are strengthened sinker weight, make the abundant flare up tetragonal body of net cage, net cage entry 2m, the 0.5m that surfaces jumps out outside the case for preventing fish, seam one cover net above the net cage, cover net will be propped up with bamboo pole, in order to avoid the depression entry affects ingesting of the interior fish of case, 7d installs net cage before the fingerling cartonning, allow periphtic algae on the etting, to reduce the hatching of the injured fertilized egg of friction after the cartonning of fish body:
(2) seed is thrown in: put selection of time in a suitable place to breed in the 5-6 month, general every net cage can be thrown in about the fingerling 100-200 tail of 30g/ tail, and about flower silver carp 200 tails of the 50g/ tail of can arranging in pairs or groups, the fingerling of putting should require neat specification, lovely luster, body surface smooth, anosis without hinder, fin without incomplete, physique is healthy and strong;
(3) feed is prepared: the feed preparation: described feedstuff comprises the composition of following weight ratio: silicate bacterium 0.5-0.8 part, streptococcus fecalis 1-3 part, Trichoderma 0.6-0.8 part, Rhodopseudomonas palustris 2-5 part, saccharomycete 0.3-0.5 part, fishbone dust 50-60 part, vinegar grain powder 65-70 part, waste liquid sediment 50-55 part, rice bran 40-60 part, brown sugar 12-14 part, salt 10-14 part, pig manure 80-85 part, pork slaughter house discarded object 45-55 part, pasture and water 60-65 part, calcium bicarbonate 12-16 part, urea 14-17 part, ironic citrate 1-3 part, vitaminB10 .6-0.8 part, cobalamin 0.2-0.6 part, Chinese prickly ash 20-30 part, ginkgo kind skin 20-30 part, frutus cnidii 20-30 part, azedarach 10-30 part, fruit of Rangoon creeper 15-25 part, gall nut 1-15 part, ilex pubescens 5-15 part, matrine 5-10 part, soapberry exosper 55-60 part; The preparation method may further comprise the steps: (1) dries pasture and water, makes its water content below 40%, and it is cut to 2-4cm, then adds fishbone dust, vinegar grain powder, rice bran, brown sugar, salt according to described ratio, fully stirs, and mixes; (2) said mixture is fermented, described fermentation is aerobic composting fermentation, and the fermentation water accounts for the 20-30% of material gross weight, and be 50-60 hour winter oxygen supply time, and be 20-25 hour summer, and fermentation temperature is 45-60 ℃, and fermentation time is 7-10 days; (3) waste liquid sediment, pig manure, pork slaughter house discarded object are mixed according to described ratio, adding saccharomycete, streptococcus fecalis are fermented; Above-mentioned substance inserted in the pond mix corruption and macerate, plastic film on the upper cap carries out fermenting in advance in 3-5 days; Then plastic film is thrown off, and stir, allow mixture contact oxygen, temperature gradually raises, from normal temperature to 50 ℃, keep continuing turning after 1-3 days, then be raised to 60 ℃ from 50 ℃, the retention time is 2-4 days, then cool the temperature to normal temperature, kept 6-8 days, until fully slaking is fermented complete; (4) will carry out drying through the organic mixture after the fermentation of step (1) and step (2), the sterilization, baking temperature is 45-60 ℃, and being dried to water content is 15-25%; (5) silicate bacterium, Trichoderma, Rhodopseudomonas palustris are joined in the above-mentioned material according to described ratio, fully mix, stir; (6) calcium bicarbonate, urea, ironic citrate, vitamin B1, cobalamin, rheum officinale, Radix Astragali part, Divine Comedy are joined in the mixture according to described ratio, fully mix, stir; (7) after adding Chinese prickly ash 20-30 part, ginkgo kind skin 20-30 part, frutus cnidii 20-30 part, azedarach 10-30 part, fruit of Rangoon creeper 15-25 part, gall nut 1-15 part, ilex pubescens 5-15 part, matrine 5-10 part, soapberry exosper 55-60 part above-mentioned material is carried out low temperature drying under 18-45 ℃ condition, making its water content is below 10%;
(4) feeding method: the 1-4% by body weight throws something and feeds; The manufactured feed particle diameter is respectively 250 ~ 400,400 ~ 600,800 mm, and requiring manufactured feed day throwing amount is 5% ~ 15% of fish body weight; The feed granules size is agreeable to the taste, throws something and feeds in time, should lack throwing, the diligent throwing; Quantity of exchanged water is 8 ~ 10 times/d; The fish feeding volume of 3 grams～1000 gram body weight is 6%～0.4%, should increase the number of times of throwing something and feeding in the seed phase as far as possible, throws something and feeds every day 6 times～10 times, reduces gradually later on the number of times of throwing something and feeding along with growth; Long to about 100 grams, throw something and feed every day 4 times; Long to about 300 grams, throw something and feed every day 2 times～3 times; Long to 500 grams, throw something and feed every day 2 times; Long more than 500 grams, throw something and feed every day 1 time～2 times; In the high water temperature phase in summer, to throw something and feed every day 1 time, or threw something and fed 1 time in 2 days～3 days, daily ration, feeding quantity is controlled at 50%～60% of the amount of being satiated with food; Number of times is raised in throwing and rate is raised in throwing;
(5) disease prevention and cure: breeding water is through strictly filtering or disinfect to guarantee water cleaning; Reduce cultivation density, strengthen quantity of exchanged water, in time the clear end of soil pick-up and the dead fry of removing; Use composite antibiosis element " happy No. two of flounder seedling " 5 * 10
-6Throw something and feed wheel animalcule or halogen worm makes it to carry medicine and becomes " property of medicine biological feed ", collects the fry of throwing something and feeding behind 5 ~ 6 h; With " happy No. two of flounder seedling " 5 * 10
-6Full pool spilling head carries out dipping, processes continuously 3 d, and dipping time every day is more than 8 h; The fin rot method of preventing and treating comprises: reduce cultivation density, to improve premunition, reduce the morbidity chance; Strengthen soil pick-up, strengthen quantity of exchanged water, with cleaning and good water quality at the bottom of the maintenance pond; Divide the pond, careful operation and carrying prevent scratch in good time; The easy level of fin rot infects, and finds that the disease fish should isolate as early as possible, bury or burning disposal; When minute pond and disease generation, use " happy No. two of flounder " carries out oral and dipping is processed.Oral dose 2 ~ 5 g/ kg feeds, twice, 5 ~ 7 d that throw something and feed every day are a course for the treatment of; Dipping is then with 10 * 10
-6Dosage, soak 8 h every day, process continuously 3 d.Adopt method of the present invention to carry out scientific, the raising that becomes more meticulous, effect of increasing production is obvious in the short time, the life rate is high, be fit to industrialization develops on a large scale.
Embodiment
Below will be described in detail the preferred embodiments of the present invention; Should be appreciated that preferred embodiment only for the present invention is described, rather than in order to limit protection scope of the present invention.
Embodiment 1:
The method that a kind of bluefin tuna becomes more meticulous and cultivates may further comprise the steps:
(1) breeding environment: cultivating the pond is circle or square water mud sump, area 12 ~ 20m2, dark 0. 7 ~ 1. 0 m; The intermediate rearing pond is circle or square water mud sump, area 30 ~ 50 m2, and dark 0. 8 ~ 1. 0 m in pond require water circulation and dirt eliminating function good; Water quality is transparent, limpid, does not contain the harmful heavy metal ion, and sulphide is no more than 0.02mg/L, and total coliform count is less than 5000/L, and salinity is more than 20; Illumination: 500lx ~ 1500lx, even, soft, not dazzling; Water temperature: 15 ℃ ~ 18 ℃; Salinity: suitable salinity is 25 ~ 30; PH maintains between 7.6 ~ 8.2; Dissolved oxygen: greater than 6 m g/L; Net cage selects the polythene net sheet to make tank material, net cage is double-deck, specification 6.0m * 10.0m * 6m, internal layer mesh 3.5cm, outer mesh 4.0cm with large mao bamboon colligation, is fixed on gang rope on the pile of four jiaos of tank towers around the net cage top, also available foamed plastics ball float or old metal bucket are as buoyancy, framework is fixed in the waters with anchor, and the net cage bottom is tied the sandstone bag and made sinker, and four jiaos are strengthened sinker weight, make the abundant flare up tetragonal body of net cage, net cage entry 2m, the 0.5m that surfaces jumps out outside the case for preventing fish, seam one cover net above the net cage, cover net will be propped up with bamboo pole, in order to avoid the depression entry affects ingesting of the interior fish of case, 7d installs net cage before the fingerling cartonning, allow periphtic algae on the etting, to reduce the hatching of the injured fertilized egg of friction after the cartonning of fish body:
(2) seed is thrown in: put selection of time in a suitable place to breed in the 5-6 month, general every net cage can be thrown in about the yellow cartfish kind 100-200 tail of 30g/ tail, and about flower silver carp 200 tails of the 50g/ tail of can arranging in pairs or groups, the fingerling of putting should require neat specification, lovely luster, body surface smooth, anosis without hinder, fin without incomplete, physique is healthy and strong;
(3) feed is prepared: the feed preparation: described feedstuff comprises the composition of following weight ratio: silicate bacterium 0.5-0.8 part, streptococcus fecalis 1-3 part, Trichoderma 0.6-0.8 part, Rhodopseudomonas palustris 2-5 part, saccharomycete 0.3-0.5 part, fishbone dust 50-60 part, vinegar grain powder 65-70 part, waste liquid sediment 50-55 part, rice bran 40-60 part, brown sugar 12-14 part, salt 10-14 part, pig manure 80-85 part, pork slaughter house discarded object 45-55 part, pasture and water 60-65 part, calcium bicarbonate 12-16 part, urea 14-17 part, ironic citrate 1-3 part, vitaminB10 .6-0.8 part, cobalamin 0.2-0.6 part, Chinese prickly ash 20-30 part, ginkgo kind skin 20-30 part, frutus cnidii 20-30 part, azedarach 10-30 part, fruit of Rangoon creeper 15-25 part, gall nut 1-15 part, ilex pubescens 5-15 part, matrine 5-10 part, soapberry exosper 55-60 part; The preparation method may further comprise the steps: (1) dries pasture and water, makes its water content below 40%, and it is cut to 2-4cm, then adds fishbone dust, vinegar grain powder, rice bran, brown sugar, salt according to described ratio, fully stirs, and mixes; (2) said mixture is fermented, described fermentation is aerobic composting fermentation, and the fermentation water accounts for the 20-30% of material gross weight, and be 50-60 hour winter oxygen supply time, and be 20-25 hour summer, and fermentation temperature is 45-60 ℃, and fermentation time is 7-10 days; (3) waste liquid sediment, pig manure, pork slaughter house discarded object are mixed according to described ratio, adding saccharomycete, streptococcus fecalis are fermented; Above-mentioned substance inserted in the pond mix corruption and macerate, plastic film on the upper cap carries out fermenting in advance in 3-5 days; Then plastic film is thrown off, and stir, allow mixture contact oxygen, temperature gradually raises, from normal temperature to 50 ℃, keep continuing turning after 1-3 days, then be raised to 60 ℃ from 50 ℃, the retention time is 2-4 days, then cool the temperature to normal temperature, kept 6-8 days, until fully slaking is fermented complete; (4) will carry out drying through the organic mixture after the fermentation of step (1) and step (2), the sterilization, baking temperature is 45-60 ℃, and being dried to water content is 15-25%; (5) silicate bacterium, Trichoderma, Rhodopseudomonas palustris are joined in the above-mentioned material according to described ratio, fully mix, stir; (6) calcium bicarbonate, urea, ironic citrate, vitamin B1, cobalamin, rheum officinale, Radix Astragali part, Divine Comedy are joined in the mixture according to described ratio, fully mix, stir; (7) after adding Chinese prickly ash 20-30 part, ginkgo kind skin 20-30 part, frutus cnidii 20-30 part, azedarach 10-30 part, fruit of Rangoon creeper 15-25 part, gall nut 1-15 part, ilex pubescens 5-15 part, matrine 5-10 part, soapberry exosper 55-60 part above-mentioned material is carried out low temperature drying under 18-45 ℃ condition, making its water content is below 10%;
(4) feeding method: the 1-4% by body weight throws something and feeds; The manufactured feed particle diameter is respectively 250 ~ 400,400 ~ 600,800 mm, and requiring manufactured feed day throwing amount is 5% ~ 15% of fish body weight; The feed granules size is agreeable to the taste, throws something and feeds in time, should lack throwing, the diligent throwing; Quantity of exchanged water is 8 ~ 10 times/d; The fish feeding volume of 3 grams～1000 gram body weight is 6%～0.4%, should increase the number of times of throwing something and feeding in the seed phase as far as possible, throws something and feeds every day 6 times～10 times, reduces gradually later on the number of times of throwing something and feeding along with growth; Long to about 100 grams, throw something and feed every day 4 times; Long to about 300 grams, throw something and feed every day 2 times～3 times; Long to 500 grams, throw something and feed every day 2 times; Long more than 500 grams, throw something and feed every day 1 time～2 times; In the high water temperature phase in summer, to throw something and feed every day 1 time, or threw something and fed 1 time in 2 days～3 days, daily ration, feeding quantity is controlled at 50%～60% of the amount of being satiated with food; Number of times is raised in throwing and rate is raised in throwing;
(5) disease prevention and cure: breeding water is through strictly filtering or disinfect to guarantee water cleaning; Reduce cultivation density, strengthen quantity of exchanged water, in time the clear end of soil pick-up and the dead fry of removing; Use composite antibiosis element " happy No. two of flounder seedling " 5 * 10
-6Throw something and feed wheel animalcule or halogen worm makes it to carry medicine and becomes " property of medicine biological feed ", collects the fry of throwing something and feeding behind 5 ~ 6 h; With " happy No. two of flounder seedling " 5 * 10
-6Full pool spilling head carries out dipping, processes continuously 3 d, and dipping time every day is more than 8 h; The fin rot method of preventing and treating comprises: reduce cultivation density, to improve premunition, reduce the morbidity chance; Strengthen soil pick-up, strengthen quantity of exchanged water, with cleaning and good water quality at the bottom of the maintenance pond; Divide the pond, careful operation and carrying prevent scratch in good time; The easy level of fin rot infects, and finds that the disease fish should isolate as early as possible, bury or burning disposal; When minute pond and disease generation, use " happy No. two of flounder " carries out oral and dipping is processed.Oral dose 2 ~ 5 g/ kg feeds, twice, 5 ~ 7 d that throw something and feed every day are a course for the treatment of; Dipping is then with 10 * 10
-6Dosage, soak 8 h every day, process continuously 3 d.
Embodiment 2
The preparation method is with embodiment 1.
Bluefin tuna juvenile stage in growth, pull out, divide and support in the middle of five ponds, 300 in every pond, throw in respectively according to the injected volume of every mu of 200kg in four ponds that the fertile and common bluefin tuna of microorganism bluefin tuna of the embodiment of the invention 1 is fertile (to be contrasted 1, originate from
Beijing Century AMMS Biotechnology Co., Ltd.), bluefin tuna fertilizer (contrast 2) is not thrown in the another one pond, but throws in the common fish food of same amount, remaining feeding amount is identical, and culture environment is identical, through 2-4 month the cultivation of embodiment 1, contrast the upgrowth situation of its output and bluefin tuna, specifically as shown in Table 1 and Table 2:
Table 1 the present invention and contrast 1 are relatively
 |
Output increases (%) | Individual increase (%) | The fish reduction of dying of illness (%) | EPA content increment (%) |
| Embodiment 1 | 26 | 18 | 17 | 13 |
Table 2 the present invention and contrast 2 are relatively
 |
Output increases (%) | The fish body increases (%) | The fish reduction of dying of illness (%) | EPA content increment (%) |
| Embodiment 1 | 29 | 26 | 26 | 65 |
Contrast through table 1, table 2 can be found, add the Fast Growth that composite microbe fertilizer of the present invention can promote bluefin tuna, EPA content increases, bluefin tuna class disease reduces, the minimizing of dying of illness, beneficial microbe in the water body is increased, and final quality and quality all are improved.
Claims (1)
1. the bluefin tuna method of cultivation that becomes more meticulous may further comprise the steps:
(1) breeding environment: cultivating the pond is circle or square water mud sump, area 12 ~ 20m2, dark 0. 7 ~ 1. 0 m; The intermediate rearing pond is circle or square water mud sump, area 30 ~ 50 m2, and dark 0. 8 ~ 1. 0 m in pond require water circulation and dirt eliminating function good; Water quality is transparent, limpid, does not contain the harmful heavy metal ion, and sulphide is no more than 0.02mg/L, and total coliform count is less than 5000/L, and salinity is more than 20; Illumination: 500lx ~ 1500lx, even, soft, not dazzling; Water temperature: 15 ℃ ~ 18 ℃; Salinity: suitable salinity is 25 ~ 30; PH maintains between 7.6 ~ 8.2; Dissolved oxygen: greater than 6 m g/L; Net cage selects the polythene net sheet to make tank material, net cage is double-deck, specification 6.0m * 10.0m * 6m, internal layer mesh 3.5cm, outer mesh 4.0cm with large mao bamboon colligation, is fixed on gang rope on the pile of four jiaos of tank towers around the net cage top, also available foamed plastics ball float or old metal bucket are as buoyancy, framework is fixed in the waters with anchor, and the net cage bottom is tied the sandstone bag and made sinker, and four jiaos are strengthened sinker weight, make the abundant flare up tetragonal body of net cage, net cage entry 2m, the 0.5m that surfaces jumps out outside the case for preventing fish, seam one cover net above the net cage, cover net will be propped up with bamboo pole, in order to avoid the depression entry affects ingesting of the interior fish of case, 7d installs net cage before the fingerling cartonning, allow periphtic algae on the etting, to reduce the hatching of the injured fertilized egg of friction after the cartonning of fish body:
(2) seed is thrown in: put selection of time in a suitable place to breed in the 5-6 month, general every net cage can be thrown in about the fingerling 100-200 tail of 30g/ tail, and about flower silver carp 200 tails of the 50g/ tail of can arranging in pairs or groups, the fingerling of putting should require neat specification, lovely luster, body surface smooth, anosis without hinder, fin without incomplete, physique is healthy and strong;
(3) feed is prepared: the feed preparation: described feedstuff comprises the composition of following weight ratio: silicate bacterium 0.5-0.8 part, streptococcus fecalis 1-3 part, Trichoderma 0.6-0.8 part, Rhodopseudomonas palustris 2-5 part, saccharomycete 0.3-0.5 part, fishbone dust 50-60 part, vinegar grain powder 65-70 part, waste liquid sediment 50-55 part, rice bran 40-60 part, brown sugar 12-14 part, salt 10-14 part, pig manure 80-85 part, pork slaughter house discarded object 45-55 part, pasture and water 60-65 part, calcium bicarbonate 12-16 part, urea 14-17 part, ironic citrate 1-3 part, vitaminB10 .6-0.8 part, cobalamin 0.2-0.6 part, Chinese prickly ash 20-30 part, ginkgo kind skin 20-30 part, frutus cnidii 20-30 part, azedarach 10-30 part, fruit of Rangoon creeper 15-25 part, gall nut 1-15 part, ilex pubescens 5-15 part, matrine 5-10 part, soapberry exosper 55-60 part; The preparation method may further comprise the steps: (1) dries pasture and water, makes its water content below 40%, and it is cut to 2-4cm, then adds fishbone dust, vinegar grain powder, rice bran, brown sugar, salt according to described ratio, fully stirs, and mixes; (2) said mixture is fermented, described fermentation is aerobic composting fermentation, and the fermentation water accounts for the 20-30% of material gross weight, and be 50-60 hour winter oxygen supply time, and be 20-25 hour summer, and fermentation temperature is 45-60 ℃, and fermentation time is 7-10 days; (3) waste liquid sediment, pig manure, pork slaughter house discarded object are mixed according to described ratio, adding saccharomycete, streptococcus fecalis are fermented; Above-mentioned substance inserted in the pond mix corruption and macerate, plastic film on the upper cap carries out fermenting in advance in 3-5 days; Then plastic film is thrown off, and stir, allow mixture contact oxygen, temperature gradually raises, from normal temperature to 50 ℃, keep continuing turning after 1-3 days, then be raised to 60 ℃ from 50 ℃, the retention time is 2-4 days, then cool the temperature to normal temperature, kept 6-8 days, until fully slaking is fermented complete; (4) will carry out drying through the organic mixture after the fermentation of step (1) and step (2), the sterilization, baking temperature is 45-60 ℃, and being dried to water content is 15-25%; (5) silicate bacterium, Trichoderma, Rhodopseudomonas palustris are joined in the above-mentioned material according to described ratio, fully mix, stir; (6) calcium bicarbonate, urea, ironic citrate, vitamin B1, cobalamin, rheum officinale, Radix Astragali part, Divine Comedy are joined in the mixture according to described ratio, fully mix, stir; (7) after adding Chinese prickly ash 20-30 part, ginkgo kind skin 20-30 part, frutus cnidii 20-30 part, azedarach 10-30 part, fruit of Rangoon creeper 15-25 part, gall nut 1-15 part, ilex pubescens 5-15 part, matrine 5-10 part, soapberry exosper 55-60 part above-mentioned material is carried out low temperature drying under 18-45 ℃ condition, making its water content is below 10%;
(4) feeding method: the 1-4% by body weight throws something and feeds; The manufactured feed particle diameter is respectively 250 ~ 400,400 ~ 600,800 mm, and requiring manufactured feed day throwing amount is 5% ~ 15% of fish body weight; The feed granules size is agreeable to the taste, throws something and feeds in time, should lack throwing, the diligent throwing; Quantity of exchanged water is 8 ~ 10 times/d; The fish feeding volume of 3 grams～1000 gram body weight is 6%～0.4%, should increase the number of times of throwing something and feeding in the seed phase as far as possible, throws something and feeds every day 6 times～10 times, reduces gradually later on the number of times of throwing something and feeding along with growth; Long to about 100 grams, throw something and feed every day 4 times; Long to about 300 grams, throw something and feed every day 2 times～3 times; Long to 500 grams, throw something and feed every day 2 times; Long more than 500 grams, throw something and feed every day 1 time～2 times; In the high water temperature phase in summer, to throw something and feed every day 1 time, or threw something and fed 1 time in 2 days～3 days, daily ration, feeding quantity is controlled at 50%～60% of the amount of being satiated with food; Number of times is raised in throwing and rate is raised in throwing;
(5) disease prevention and cure: breeding water is through strictly filtering or disinfect to guarantee water cleaning; Reduce cultivation density, strengthen quantity of exchanged water, in time the clear end of soil pick-up and the dead fry of removing; Use composite antibiosis element " happy No. two of flounder seedling " 5 * 10
-6Throw something and feed wheel animalcule or halogen worm makes it to carry medicine and becomes " property of medicine biological feed ", collects the fry of throwing something and feeding behind 5 ~ 6 h; With " happy No. two of flounder seedling " 5 * 10
-6Full pool spilling head carries out dipping, processes continuously 3 d, and dipping time every day is more than 8 h; The fin rot method of preventing and treating comprises: reduce cultivation density, to improve premunition, reduce the morbidity chance; Strengthen soil pick-up, strengthen quantity of exchanged water, with cleaning and good water quality at the bottom of the maintenance pond; Divide the pond, careful operation and carrying prevent scratch in good time; The easy level of fin rot infects, and finds that the disease fish should isolate as early as possible, bury or burning disposal; When minute pond and disease generation, use " happy No. two of flounder " carries out oral and dipping is processed;
Oral dose 2 ~ 5 g/ kg feeds, twice, 5 ~ 7 d that throw something and feed every day are a course for the treatment of; Dipping is then with 10 * 10
-6Dosage, soak 8 h every day, process continuously 3 d.
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| CN2013103090931A CN103348942A (en) | 2013-07-23 | 2013-07-23 | Method for fine breeding of bluefin tunas |
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| CN103548729A (en) * | 2013-10-28 | 2014-02-05 | 广西壮族自治区海洋研究所 | Medicated bath disease prevention method for cage culture of sparus aurata |
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| CN105360721A (en) * | 2015-11-24 | 2016-03-02 | 广州聚注专利研发有限公司 | Tuna special feed and preparation method thereof |
| CN105494209A (en) * | 2015-12-30 | 2016-04-20 | 黄群好 | Method for cage culture of bluefin tuna |
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| CN103548729A (en) * | 2013-10-28 | 2014-02-05 | 广西壮族自治区海洋研究所 | Medicated bath disease prevention method for cage culture of sparus aurata |
| CN104957439A (en) * | 2015-07-30 | 2015-10-07 | 钦州市钦州港七十二泾渔业养殖专业合作社 | Traditional Chinese medicine additive for improving flesh quality of tunas |
| CN105360721A (en) * | 2015-11-24 | 2016-03-02 | 广州聚注专利研发有限公司 | Tuna special feed and preparation method thereof |
| CN105494209A (en) * | 2015-12-30 | 2016-04-20 | 黄群好 | Method for cage culture of bluefin tuna |
| CN105494209B (en) * | 2015-12-30 | 2018-05-18 | 深圳市太丰东方海洋生物科技有限公司 | A kind of method of cage culture bluefin tuna |
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Application publication date: 20131016 |