CN103621443A - Method for breeding female parental finless eels based on intermittent feeding - Google Patents
Method for breeding female parental finless eels based on intermittent feeding Download PDFInfo
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- CN103621443A CN103621443A CN201310617178.6A CN201310617178A CN103621443A CN 103621443 A CN103621443 A CN 103621443A CN 201310617178 A CN201310617178 A CN 201310617178A CN 103621443 A CN103621443 A CN 103621443A
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Abstract
The invention relates to a method for breeding female parental finless eels based on intermittent feeding and belongs to the technical field of fishery science application. The method for breeding female parental finless eels based on intermittent feeding is characterized by comprising the following steps that firstly, young eels weighing 6g-10g are put into an overwintering net box at the bottom of October in the current year and feeding the young eels is stopped in the middle ten days of November when the water temperature is lower than 15 DEG C; secondly, after the young eels live through the winter, feeding the young eels begins in the last ten days of March when the water temperature is higher than 15 DEG C in a circulating feeding manner than feeding is performed for four days after one absolute diet day and feeding is carried out once a day; thirdly, before reproduction, female parental finless eels weighing 50g-60g are bred in a circulating feeding manner that feeding is performed for two days after one absolute diet day. According to the method for breeding the female parental finless eels based on intermittent feeding, the rate of survival can reach 90% in the process of transferring the female parental finless eels from a female parental finless eels breeding net box to a reproduction net box and higher than the original rate of survival by 25%; the spawning time of the female parental finless eels is identical, so that the stress resistance of the female parental finless eels is improved and investment in breeding the female parental finless eels in batches is reduced.
Description
Technical field:
The present invention relates to a kind ofly based on throw something and feed female swamp eel parent's breeding method of intermittence, belong to fishery science applied technical field.
Background technology:
Swamp eel (Monopterus albus) is that China cultivates development one of famous-brand and high-quality fish of fresh water very rapidly in recent years, and it mainly cultivates the provinces such as Hubei that producing region is dispersed throughout the middle and lower reach of Yangtze River, Hunan, Anhui, Jiangxi, Zhejiang.Culture of swamp eel has become the leading industry of these regional culture fisheries.
Swamp eel large-scale cultivation is large to the demand of its seedling, and the mode of main employing artificial bionic state is carried out the eel seedling production of scale at present.But, in swamp eel eel the Miaos work Ecology reproductive process, need a large amount of female parents with reproductive performance, therefore cultivate a large amount of female eel parents, for the eel seedling of scale, produce extremely important.At present, in artificial parent culture process, because of the overnutrition of throwing something and feeding, easily cause Nutrition and Metabolism disease, for this reason, adopt healthy breeding way to cultivate female swamp eel parent significant for the breeding of artificial bionic state swamp eel seed.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of based on throw something and feed female swamp eel parent's breeding method of intermittence, to improve female parent's resistance and to reduce the input of cultivating female swamp eel parent in batches.
The present invention realizes above-mentioned purpose by following technical solution.
Provided by the invention a kind of based on throw something and feed female swamp eel parent's breeding method of intermittence, comprise the steps:
(1) surviving the winter of large specification eel kind:
The eel seedling of June breeding then, after the raising in cages of 4 months, sieving and grading are raised, is that the eel kind of 6-10g enters the net cage of surviving the winter to selecting by the end of October then specification; The specification of net cage of surviving the winter is 200cm * 200cm * 100cm, and each net cage is put eel kind 900-1000 tail in a suitable place to breed; For guaranteeing eel seedling safe overwintering, the weter hyacinth in net cage progressively to replaced with to water peanut by the end of August every year, when to mid-November, swamp eel starts to survive the winter, in net cage, be all that water peanut covers; To mid-November, when water temperature is lower than 15 ℃, stop the throwing something and feeding of eel kind, now eel kind formally starts to enter during Wintering Period.
(2) cultivation of female eel parent first stage:
After eel kind is survived the winter, to late March water temperature, start to throw something and feed to it during higher than 15 ℃, now the specification of eel kind is 10-20g; Institute's bait throwing in material is the mixture of fresh and alive water earthworm and swamp eel special compound feed, and the mixing ratio of fresh and alive water earthworm and swamp eel special compound feed is 2:1; Day feeding volume is the 2%-3% of swamp eel body weight; The swamp eel special compound feed that described swamp eel special compound feed Wei Hai great feed GuangDong HaiDa Group Co., Ltd produces, its main component comprises fish meal, flour, corn, composite microbial element, mineral matter etc., its protein content is at 38%-40%; The pattern of throwing something and feeding of taking is circulation that fasting is thrown something and fed 4 days for the 1 day again pattern of throwing something and feeding, and the frequency of throwing something and feeding is to throw something and feed every day once, Feeding time every day 17:00-18:00 at dusk carry out; When female eel parent grows to 50g-60g, stop throwing something and feeding of this pattern;
(3) cultivation of female eel parent second stage:
The cultivation in this stage refers to that female eel parent specification is 50g-60g to the cultivation before breeding, and now, female eel parent can not reinforced cultivating, thereby needs to change the pattern of throwing something and feeding; The pattern of throwing something and feeding of taking is circulation that fasting is thrown something and fed 2 days for the 1 day again pattern of throwing something and feeding; Institute's bait throwing in material, day feeding volume, the frequency of throwing something and feeding are identical with the cultivation of first stage with Feeding time.
After cultivation by second stage, female eel parent can carry out the breeding of artificial bionic state in transferring to breeding net cage 6-7 month; More than now female eel parent's specification can reach 75g, its individual average fish brood amount and output of seedling are respectively at 500-1000 grain and 300-800 tail.
The present invention compared with prior art, has following beneficial effect:
1, from female eel parent culture net cage, transfer to its survival rate the process of breeding net cage and can reach 90%, higher more than 25% than normal;
2, it is consistent that female eel parent enters the egg-laying time of breeding net cage, can be in May 25 of mating season to June 10, and laying eggs of female parent all can complete substantially.
Embodiment:
Implement the present invention, take Jianghan Plain as example, can carry out according to the following steps:
1, surviving the winter of large specification eel kind:
The eel seedling of June breeding then, after the raising in cages of 4 months, sieving and grading are raised, is that the eel kind of 6-10g enters the net cage of surviving the winter to selecting by the end of October then specification; The specification of net cage of surviving the winter is 200cm * 200cm * 100cm, and each net cage is put eel kind 1000 tails in a suitable place to breed; For guaranteeing eel seedling safe overwintering, the weter hyacinth in net cage progressively to replaced with to water peanut by the end of August every year, when to mid-November, swamp eel starts to survive the winter, in net cage, be all that water peanut covers; To mid-November, when water temperature is lower than 15 ℃, stop the throwing something and feeding of eel kind, now eel kind formally starts to enter during Wintering Period.
2, the cultivation of female eel parent first stage:
After eel kind is survived the winter, to late March water temperature, start to throw something and feed to it during higher than 15 ℃, now the specification of eel kind is 10-20g; Institute's bait throwing in material is the mixture of fresh and alive water earthworm and swamp eel special compound feed, and the mixing ratio of fresh and alive water earthworm and swamp eel special compound feed is 2:1; Day feeding volume is the 2%-3% of swamp eel body weight; The swamp eel special compound feed that described swamp eel special compound feed Wei Hai great feed GuangDong HaiDa Group Co., Ltd produces, its main component comprises fish meal, flour, corn, composite microbial element, mineral matter etc., its protein content is at 38%-40%; The pattern of throwing something and feeding of taking is circulation that fasting is thrown something and fed 4 days for the 1 day again pattern of throwing something and feeding, and the frequency of throwing something and feeding is to throw something and feed every day once, Feeding time every day 17:00-18:00 at dusk carry out; When female eel parent grows to 50g-60g, stop throwing something and feeding of this pattern;
3, the cultivation of female eel parent second stage:
The cultivation in this stage refers to that female eel parent specification is 50g-60g to the cultivation before breeding, and nurturing an environment is constant, and now, female eel parent can not reinforced cultivating, thereby needs to change the pattern of throwing something and feeding; The pattern of throwing something and feeding of taking is circulation that fasting is thrown something and fed 2 days for the 1 day again pattern of throwing something and feeding; Institute's bait throwing in material, day feeding volume, the frequency of throwing something and feeding are identical with the cultivation of first stage with Feeding time.
After cultivation by second stage, female eel parent can carry out the breeding of artificial bionic state in transferring to breeding net cage 6-7 month; More than now female eel parent's specification can reach 75g, its individual average fish brood amount and output of seedling are respectively at 500-1000 grain and 300-800 tail.
Claims (3)
1. based on throw something and feed female swamp eel parent's a breeding method of intermittence, it is characterized in that comprising the steps:
(1) surviving the winter of large specification eel kind:
The eel seedling of June breeding then, after the raising in cages of 4 months, sieving and grading are raised, is that the eel kind of 6-10g enters the net cage of surviving the winter to selecting by the end of October then specification; The specification of net cage of surviving the winter is 200cm * 200cm * 100cm, and each net cage is put eel kind 900-1000 tail in a suitable place to breed; To mid-November, when water temperature is lower than 15 ℃, stop the throwing something and feeding of eel kind, now eel kind formally starts to enter during Wintering Period;
(2) cultivation of female eel parent first stage:
After eel kind is survived the winter, to late March water temperature, start to throw something and feed to it during higher than 15 ℃, now the specification of eel kind is 10-20g; Institute's bait throwing in material is the mixture of fresh and alive water earthworm and swamp eel special compound feed, and the pattern of throwing something and feeding of taking is circulation that fasting is thrown something and fed 4 days for the 1 day again pattern of throwing something and feeding, and the frequency of throwing something and feeding is to throw something and feed every day once, Feeding time every day 17:00-18:00 at dusk carry out; When female eel parent grows to 50g-60g, stop throwing something and feeding of this pattern;
(3) cultivation of female eel parent second stage:
The cultivation in this stage refers to that female eel parent specification is 50g-60g to the cultivation before breeding, and the pattern of throwing something and feeding of taking is circulation that fasting is thrown something and fed 2 days for the 1 day again pattern of throwing something and feeding; Institute's bait throwing in material, day feeding volume, the frequency of throwing something and feeding are identical with the cultivation of first stage with Feeding time.
2. according to claim 1 a kind of based on throw something and feed female swamp eel parent's breeding method of intermittence, it is characterized in that for guaranteeing eel seedling safe overwintering, every year the weter hyacinth in net cage progressively to replaced with to water peanut by the end of August, when to mid-November, swamp eel starts to survive the winter, in net cage, be all that water peanut covers.
3. according to claim 2 a kind of based on throw something and feed female swamp eel parent's breeding method of intermittence, it is characterized in that institute's bait throwing in material is the mixture of fresh and alive water earthworm and swamp eel special compound feed, the mixing ratio of fresh and alive water earthworm and swamp eel special compound feed is 2:1; Day feeding volume is the 2%-3% of swamp eel body weight; The swamp eel special compound feed that described swamp eel special compound feed Wei Hai great feed GuangDong HaiDa Group Co., Ltd produces, its main component is fish meal, flour, corn, composite microbial element, mineral matter, its protein content is at 38%-40%.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104026054A (en) * | 2014-06-30 | 2014-09-10 | 新希望六和股份有限公司 | Manual net cage precipitable feed feeding method |
| CN104067961A (en) * | 2014-06-07 | 2014-10-01 | 长江大学 | Directional breeding method of female parents of finless eel |
| CN105454111A (en) * | 2015-12-17 | 2016-04-06 | 安徽省农业科学院水产研究所 | Finless eel self-reproducing, self-breeding and self-cultivating mode |
| CN105994041A (en) * | 2016-05-27 | 2016-10-12 | 张家港市华阳生态农业发展有限公司 | Artificial breeding box and breeding method thereof for ricefield eels |
| CN109220908A (en) * | 2018-10-29 | 2019-01-18 | 王欣 | A kind of regulation method for cultivating magnetic swamp eel parent based on periodical illumination |
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| CN103404470A (en) * | 2013-08-27 | 2013-11-27 | 望江志宇特种水产品开发有限公司 | Finless eel net cage ecological breeding method |
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2013
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Patent Citations (4)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104067961A (en) * | 2014-06-07 | 2014-10-01 | 长江大学 | Directional breeding method of female parents of finless eel |
| CN104026054A (en) * | 2014-06-30 | 2014-09-10 | 新希望六和股份有限公司 | Manual net cage precipitable feed feeding method |
| CN104026054B (en) * | 2014-06-30 | 2017-01-25 | 新希望六和股份有限公司 | Manual net cage precipitable feed feeding method |
| CN105454111A (en) * | 2015-12-17 | 2016-04-06 | 安徽省农业科学院水产研究所 | Finless eel self-reproducing, self-breeding and self-cultivating mode |
| CN105454111B (en) * | 2015-12-17 | 2017-11-10 | 安徽省农业科学院水产研究所 | A kind of swamp eel is from numerous self-fertile autotrophy method |
| CN105994041A (en) * | 2016-05-27 | 2016-10-12 | 张家港市华阳生态农业发展有限公司 | Artificial breeding box and breeding method thereof for ricefield eels |
| CN109220908A (en) * | 2018-10-29 | 2019-01-18 | 王欣 | A kind of regulation method for cultivating magnetic swamp eel parent based on periodical illumination |
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Application publication date: 20140312 |