CN104126533A - High survival rate loach breeding method - Google Patents
High survival rate loach breeding method Download PDFInfo
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- CN104126533A CN104126533A CN201410379073.6A CN201410379073A CN104126533A CN 104126533 A CN104126533 A CN 104126533A CN 201410379073 A CN201410379073 A CN 201410379073A CN 104126533 A CN104126533 A CN 104126533A
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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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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention provides a high survival rate loach breeding method. The high survival rate loach breeding method comprises the following steps of preparing a breeding pool, disinfecting the breeding pool, selecting parent loach, preprocessing the parent loach, conducting spawning and hatching, temporarily breeding hatched loach fry, conducting intensified breeding in the breeding pool and conducting pool fry discharging or selling. The method is adopted for breeding the loach fry, the survival rate of the loach fry reaches up to 95%; an artificial induced spawning method is adopted, the spawning cycle is shortened, and the breeding efficiency is improved; when hatching is conducted, flow water flow hatching is adopted, and the phenomenon that fertilized eggs deposit on the bottom of the pool and die due to lack of oxygen is avoided; a thin net and a thick net are matched, the fertilized eggs can be effectively preventing from being pressed to death or eaten by the parent loach, and the hatching rate is improved.
Description
Technical field
The present invention relates to technical field of aquaculture, be specifically related to a kind of high-servival rate breeding method of loach.
Background technology
Loach is containing high protein and low fat, and Fresh & Tender in Texture, nutritious, delicious flavour, is rich in multivitamin and mineral matter, has very high nutritive value and medical value.Due to overfishing, particularly spreading unchecked of electric fishing loach, adds in farmland and uses in a large number the agricultural chemicals harmful to loach and the change of cropping system, the loach resource in natural water area and paddy field falls sharply year by year, propagates loach artificially and occurs thereupon these years.The artificial propagation techniques of loach is by Duo Jia aquatic products R&D institution and waterman author update both at home and abroad, current topmost method is to adopt little loach nursery pond to concentrate to raise, grow to after 3cm until loach seedling, dropping into into loach pond raises, but the loach seedling that the method is cultivated, while growing into a cun sheet (3cm is long), survival rate only has 5%-10%, and loach spray seedling is directly thrown in to pond culture, domestic top level also only can reach 20%, this has seriously restricted the development of China's loach breeding industry, find after deliberation, in the time that loach seed grows to large specification (5-8cm) seed, throw in again pond culture, the survival rate of loach can be up to 90%.But the domestic level of growing seedlings falls behind, the fertilization rate of loach is low, can be from loach fertilization, only there is 10%-20% to loach seedling being cultivated to the survival rate of large size seedling seed (5-8cm), and seriously restricting the demand of large-scale cultivation loach.
Summary of the invention
The deficiency existing for above-mentioned prior art, the invention provides a kind of survival rate up to 95% high-servival rate breeding method of loach.
Technical scheme of the present invention is to provide a kind of high-servival rate breeding method of loach, comprises the steps:
(1) breed the preparation in pond: build multiple long 2-3 rice, wide 2-3 rice, dark 0.3-0.5 rice with cement, and have a pond of breeding of water inlet and discharge outlet, at the bottom of breeding the pond in pond, first spread the close net that mesh diameter is less than loach seed, approximately 100 order specifications, then be greater than rare net of loach seed at close online laying mesh diameter, approximately 16 order specifications, the edge of close net and rare net all will extend to the edge of breeding pond; And prepare a circulation water inlet pipe in water inlet, the flow control of water inlet pipe, at 0.1L/s, can supplement running water and oxygen, can not bother again the fertilization and hatching of loach;
(2) breed the sterilization in pond: before pouring water with the sterilization of lime water full pool spilling head;
(3) seed selection of parent loach: the female loach before selecting just before giving birth and the male loach of fresh aquatic food, both quantitative proportions are: female loach: male loach=1:2-3, the concrete selecting method of female loach is when grabbing with hand, and those can discharge the female loach of yellow transparent roe;
(4) pretreatment of parent loach: sterilize once first to parent loach, the injection of then hastening parturition, the dosage of the pin of wherein hastening parturition is female loach 0.2mg/ tail, male loach 0.1mg/ tail is played the pin of hastening parturition and is sterilized once to parent loach again later; Wherein the specific practice of sterilization is: parent loach is put into 3% double-chain quaternary ammonium salt liquid or 4% povidone iodine soaks 5 minutes, then putting into throw in has the water of disinfection of Chinese drug treasured to carry out disinfection;
(5) produce son hatching: parent's male and female loach good pretreatment is put into the ready pond of breeding, and the parent loach of 4-5 kilogram is put in each pond of breeding, and the depth of water of breeding pond is 20-25cm, and water temperature is 20-25 DEG C, oxygenation always during breeding; When loach produces sub-rate when reaching 80%, the rare net in pond is bred in pull-up, allows Fertilized Eggs of Loach drain in time below close online, is eaten up by male parent with the fish-egg preventing; Within general about 2 days, get final product demoulding, within 3 days, can emerge in half left and right, and the parent loach that has produced son shifts in time;
(6) spray hatching is supported temporarily: the spray that hatches continues in pond, to support 5-7 days breeding, during supporting temporarily, water temperature is controlled at 20-25 DEG C, and running water oxygenation always, when after loach seedling demoulding, the loach seedling opening material of should throwing something and feeding in time for 24 hours, its opening material is paramecium or young soft-shelled turtle material or Feng Lian worm, and its feeding volume is ten thousand tail 20g, every day 2 times;
(7) nursery pond hot housing: in the fine day of breeding after support temporarily in pond, spray is transferred in the nursery pond of 200 square metres and cultivated, be cultured to spray and grow up to approximately 3 centimeters of long very little tails, generally take 25-28 days, wherein the requirement of nursery pond is non sludge at the bottom of pond, and the water filling degree of depth is more than 50-80cm, and pond stalk is solid, and harmful organisms can not enter in pond;
(8) seedling or sale are put in the lower pool: put Miao Qianxian to the pond sterilization of cleaning up the pond, disinfecting drug is quicklime, every 10 square metres carry out disinfection with quicklime 1.5kg, every square metre of basal dressing (chicken manure) 15kg two days later, in the time that water body food organisms are agreeable to the taste, the large pool under the very little tail loach seedling of approximately 3 centimeters long will be grown up to, soya-bean milk 2 times starts to throw something and feed first week every day, consumption is that every 10 tail loach seedlings are fed the soya-bean milk that 1kg soya bean is worn into, from the second week powder material that starts to throw something and feed, throw something and feed 3-4 every day, and principle is on a small quantity repeatedly, when taking to throw something and feed at regular time and quantity after the whole openings of loach; Or directly the very little tail of 3 centimeters long is sold.
Described its oxytocic drug is dom and chorion or analog, when water temperature is during at 18-25 DEG C, can adopt dom and chorion to carry out, dom dosage is 4 units of every kg parent, chorion is every kg parent 800 units, in the time that water temperature exceedes 25 DEG C, dom and analog are adopted in application, use dom and chorion can cause parent's mortality if continue, its dosage of dom and analog is 4 units of the every kg parent of dom, analog is every kg parent 20 micrograms, in the time hastening parturition loach, be equipped with medicine according to male and female total amount (female weight adds the half of male weight), its injected dose is female 0.2ml/ tail, male 0.1ml/ tail, and damage and calculate dosage by 10% medicine.
Advantage of the present invention: adopt this method to breed loach seedling, its survival rate, up to 95%, adopts the method for artificial induced spawning, reduce the cycle of laying eggs, improved the efficiency of cultivation, when hatching, adopt the current hatching of flowing, avoid fertilized egg at pond bottom sediments and anoxic is lethal; The cooperation of rare net, close net, can effectively prevent that fertilized egg from being pressed lethal or being eaten up by parent loach, has improved incubation rate.
Embodiment
Now carry out in conjunction with specific embodiments further to set forth the present invention.
Embodiment 1: a kind of high-servival rate breeding method of loach of the present invention, comprises the steps:
(1) breed the preparation in pond: build multiple long 2-3 rice, wide 2-3 rice, dark 0.3-0.5 rice with cement, and have a pond of breeding of water inlet and discharge outlet, at the bottom of breeding the pond in pond, first spread the close net that mesh diameter is less than loach seed, then the rare net that is greater than loach seed at close online laying mesh diameter, the edge of close net and rare net all will extend to the edge of breeding pond; And prepare a circulation water inlet pipe in water inlet, the flow control of water inlet pipe, at 0.1L/s, can reach and can supplement running water and oxygen, can not bother again the object of the fertilization and hatching of loach.
(2) breed the sterilization in pond: before pouring water with the sterilization of lime water full pool spilling head.
(3) seed selection of parent loach: select sexually matured loach parent, the quantitative proportion of male and female is: female loach: male loach=1:2-3, the concrete selecting method of female loach is when grabbing with hand, and those can discharge the female loach of yellow transparent roe.
(4) pretreatment of parent loach: sterilize once first to parent loach, then the injection of hastening parturition, the dosage of pin of wherein hastening parturition is female loach 0.2mg/ tail, male loach 0.1mg/ tail, playing the pin of hastening parturition sterilizes once to parent loach again later, wherein the specific practice of sterilization is: parent loach is put into 3% double-chain quaternary ammonium salt liquid or 4% povidone iodine soaks 5 minutes, then putting into throw in has the water of disinfection of Chinese drug treasured to carry out disinfection.
Oxytocic drug is dom and chorion or analog, when water temperature is during at 18-25 DEG C, can adopt dom and chorion to carry out, dom dosage is 4 units of every kg parent, chorion is every kg parent 800 units, in the time that water temperature exceedes 25 DEG C, dom and analog are adopted in application, use dom and chorion can cause parent's mortality if continue, its dosage of dom and analog is 4 units of the every kg parent of dom, analog is every kg parent 20 micrograms, in the time hastening parturition loach, be equipped with medicine according to male and female total amount (female weight adds the half of male weight), its injected dose is female 0.2ml/ tail, male 0.1ml/ tail, and damage and calculate dosage by 10% medicine.
The method of injection is: by the medicine being equipped with, by female male 0.2ml/ tail, male 0.1ml/ tail carries out back base portion injection, then puts into net cage to be produced and waits to produce.
(5) produce son hatching: parent's male and female loach good pretreatment is put into the ready pond of breeding, and the parent loach of 4-5 kilogram is put in each pond of breeding, and the depth of water of breeding pond is 20-25cm, and water temperature is 20-25 DEG C, oxygenation always during breeding; When loach produces sub-rate when reaching 80%, the rare net in pond is bred in pull-up, allows Fertilized Eggs of Loach drain in time below close online, is eaten up by male parent with the fish-egg preventing; Within general about 2 days, get final product demoulding, within 3 days, can emerge in half left and right, and the parent loach that has produced son shifts in time.
(6) spray hatching is supported temporarily: the spray that hatches continues in pond, to support 5-7 days breeding, during supporting temporarily, water temperature is controlled at 20-25 DEG C, and running water oxygenation always, when after loach seedling demoulding, the loach seedling opening material of should throwing something and feeding in time for 24 hours, its opening material is mainly taking paramecium as main, if there is no paramecium throws something and feeds, the young soft-shelled turtle material of just throwing something and feeding, its feeding volume is ten thousand tail 20g, every day 2 times; If produce in batches, the Feng Lian worm of just throwing something and feeding.
(7) nursery pond hot housing: in the fine day of breeding after support temporarily in pond, spray is transferred in the nursery pond of 200 square metres and cultivated, be cultured to spray and grow up to approximately 3 centimeters of long very little tails, generally take 25-28 days, wherein the requirement of nursery pond is non sludge at the bottom of pond, and the water filling degree of depth is more than 50-80cm, and pond stalk is solid, and harmful organisms can not enter in pond.
(8) seedling or sale are put in the lower pool: put Miao Qianxian to the pond sterilization of cleaning up the pond, disinfecting drug is quicklime, every 10 square metres carry out disinfection with quicklime 1.5kg, every square metre of basal dressing (chicken manure) 15kg two days later, in the time that water body food organisms are agreeable to the taste, the large pool under the very little tail loach seedling of approximately 3 centimeters long will be grown up to, soya-bean milk 2 times starts to throw something and feed first week every day, consumption is that every 10 tail loach seedlings are fed the soya-bean milk that 1kg soya bean is worn into, from the second week powder material that starts to throw something and feed, throw something and feed 3-4 every day, principle is on a small quantity repeatedly, when taking to throw something and feed at regular time and quantity after the whole openings of loach, day feeding volume is generally at the 2%-3% of loach gross weight, or directly the very little tail of 3 centimeters long is sold.
Claims (2)
1. a high-servival rate breeding method of loach, comprises the steps:
(1) breed the preparation in pond: build multiple long 2-3 rice, wide 2-3 rice, dark 0.3-0.5 rice with cement, and have a pond of breeding of water inlet and discharge outlet, at the bottom of breeding the pond in pond, first spread the close net that mesh diameter is less than loach seed, approximately 100 order specifications, then be greater than rare net of loach seed at close online laying mesh diameter, approximately 16 order specifications, the edge of close net and rare net all will extend to the edge of breeding pond; And prepare a circulation water inlet pipe in water inlet, the flow control of water inlet pipe, at 0.1L/s, can supplement running water and oxygen, can not bother again the fertilization and hatching of loach;
(2) breed the sterilization in pond: before pouring water with the sterilization of lime water full pool spilling head;
(3) seed selection of parent loach: the female loach before selecting just before giving birth and the male loach of fresh aquatic food, both quantitative proportions are: female loach: male loach=1:2-3, the concrete selecting method of female loach is when grabbing with hand, and those can discharge the female loach of yellow transparent roe;
(4) pretreatment of parent loach: sterilize once first to parent loach, the injection of then hastening parturition, the dosage of the pin of wherein hastening parturition is female loach 0.2mg/ tail, male loach 0.1mg/ tail is played the pin of hastening parturition and is sterilized once to parent loach again later; Wherein the specific practice of sterilization is: parent loach is put into 3% double-chain quaternary ammonium salt liquid or 4% povidone iodine soaks 5 minutes, then putting into throw in has the water of disinfection of Chinese drug treasured to carry out disinfection;
(5) produce son hatching: parent's male and female loach good pretreatment is put into the ready pond of breeding, and the parent loach of 4-5 kilogram is put in each pond of breeding, and the depth of water of breeding pond is 20-25cm, and water temperature is 20-25 DEG C, oxygenation always during breeding; When loach produces sub-rate when reaching 80%, the rare net in pond is bred in pull-up, allows Fertilized Eggs of Loach drain in time below close online, is eaten up by male parent with the fish-egg preventing; Within general about 2 days, get final product demoulding, within 3 days, can emerge in half left and right, and the parent loach that has produced son shifts in time;
(6) spray hatching is supported temporarily: the spray that hatches continues in pond, to support 5-7 days breeding, during supporting temporarily, water temperature is controlled at 20-25 DEG C, and running water oxygenation always, when after loach seedling demoulding, the loach seedling opening material of should throwing something and feeding in time for 24 hours, its opening material is paramecium or young soft-shelled turtle material or Feng Lian worm, and its feeding volume is ten thousand tail 20g, every day 2 times;
(7) nursery pond hot housing: in the fine day of breeding after support temporarily in pond, spray is transferred in the nursery pond of 200 square metres and cultivated, be cultured to spray and grow up to approximately 3 centimeters of long very little tails, generally take 25-28 days, wherein the requirement of nursery pond is non sludge at the bottom of pond, and the water filling degree of depth is more than 50-80cm, and pond stalk is solid, and harmful organisms can not enter in pond;
(8) seedling or sale are put in the lower pool: put Miao Qianxian to the pond sterilization of cleaning up the pond, disinfecting drug is quicklime, every 10 square metres carry out disinfection with quicklime 1.5kg, every square metre of basal dressing (chicken manure) 15kg two days later, in the time that water body food organisms are agreeable to the taste, the large pool under the very little tail loach seedling of approximately 3 centimeters long will be grown up to, soya-bean milk 2 times starts to throw something and feed first week every day, consumption is that every 10 tail loach seedlings are fed the soya-bean milk that 1kg soya bean is worn into, from the second week powder material that starts to throw something and feed, throw something and feed 3-4 every day, and principle is on a small quantity repeatedly, when taking to throw something and feed at regular time and quantity after the whole openings of loach; Or directly the very little tail of 3 centimeters long is sold.
2. high-servival rate breeding method of loach according to claim 1, is characterized in that, described oxytocic drug is dom and chorion or analog.
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104396820A (en) * | 2014-11-10 | 2015-03-11 | 余仁忠 | Loach traditional Chinese medicine feeding method |
CN104542398A (en) * | 2015-01-04 | 2015-04-29 | 铜陵县博陵农业生态园 | Spring and autumn two-season propagation method for loaches |
CN105165667A (en) * | 2015-07-14 | 2015-12-23 | 郑宗林 | Cultivation method for loach fingerling nursing period |
CN107242165A (en) * | 2017-07-31 | 2017-10-13 | 太仓勤丰源农场专业合作社联合社 | A kind of method for the rice terrace intercropping loach for saving bait |
CN107258414A (en) * | 2017-07-31 | 2017-10-20 | 太仓勤丰源农场专业合作社联合社 | A kind of method of rice terrace intercropping loach |
CN107372216A (en) * | 2017-07-31 | 2017-11-24 | 太仓勤丰源农场专业合作社联合社 | A kind of selenium-rich rice intercropping loach, the method for swamp eel |
CN107494342A (en) * | 2017-07-31 | 2017-12-22 | 太仓勤丰源农场专业合作社联合社 | A kind of set for promoting rice loach symbiosis supports method |
CN112335580A (en) * | 2020-09-27 | 2021-02-09 | 天津蕴华农业科技发展有限公司 | Ecological breeding method for loaches with high survival rate |
CN115024252A (en) * | 2022-07-26 | 2022-09-09 | 广西壮族自治区水产科学研究院 | Large-scale breeding method for paramisgurnus dabryanus |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104396820A (en) * | 2014-11-10 | 2015-03-11 | 余仁忠 | Loach traditional Chinese medicine feeding method |
CN104542398A (en) * | 2015-01-04 | 2015-04-29 | 铜陵县博陵农业生态园 | Spring and autumn two-season propagation method for loaches |
CN105165667A (en) * | 2015-07-14 | 2015-12-23 | 郑宗林 | Cultivation method for loach fingerling nursing period |
CN107242165A (en) * | 2017-07-31 | 2017-10-13 | 太仓勤丰源农场专业合作社联合社 | A kind of method for the rice terrace intercropping loach for saving bait |
CN107258414A (en) * | 2017-07-31 | 2017-10-20 | 太仓勤丰源农场专业合作社联合社 | A kind of method of rice terrace intercropping loach |
CN107372216A (en) * | 2017-07-31 | 2017-11-24 | 太仓勤丰源农场专业合作社联合社 | A kind of selenium-rich rice intercropping loach, the method for swamp eel |
CN107494342A (en) * | 2017-07-31 | 2017-12-22 | 太仓勤丰源农场专业合作社联合社 | A kind of set for promoting rice loach symbiosis supports method |
CN112335580A (en) * | 2020-09-27 | 2021-02-09 | 天津蕴华农业科技发展有限公司 | Ecological breeding method for loaches with high survival rate |
CN115024252A (en) * | 2022-07-26 | 2022-09-09 | 广西壮族自治区水产科学研究院 | Large-scale breeding method for paramisgurnus dabryanus |
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