CN104396841B - Pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method - Google Patents
Pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method Download PDFInfo
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- CN104396841B CN104396841B CN201410804607.5A CN201410804607A CN104396841B CN 104396841 B CN104396841 B CN 104396841B CN 201410804607 A CN201410804607 A CN 201410804607A CN 104396841 B CN104396841 B CN 104396841B
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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
Pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method, the invention belongs to technical field of aquaculture, choosing pearl rough gentian grouper body weight is 30-40g, and rock porgy body weight is pearl rough gentian grouper 1.5-2.0 times, and adjustment pearl rough gentian Grouper cultivating density is 80-120 tail/m
3, rock porgy breeding density is pearl rough gentian grouper 1/5-1/6.Pearl rough gentian grouper and the mixing of rock porgy juvenile fish are put in a suitable place to breed in circulating water culture system by the present invention, by adjusting two kinds of fish stocking sizes, putting order, cultivation density ratio, management strategy and condition of water quality in a suitable place to breed, reduce or avoid interspecies competition, realize pearl rough gentian grouper and rock porgy mixed breed, improve unit of water body cultivation efficiency.
Description
Technical field
The invention belongs to technical field of aquaculture, specifically pearl rough gentian grouper and rock porgy mixed cultivation method under a kind of industrial circulating water cultivating condition.
Background technology
Pearl rough gentian grouper, being commonly called as dragon and tiger spot or many spotted, is that female epinephelus fuscoguttatus and male epinephelus lanceolatus fish hybridize the crossbreed grouper cultivated, and growth fast, premunition is strong, be the fish that a kind of nutritive value and economic worth are all very high, become one of main breed variety of China present stage grouper, industrial prospect is wide, but, the main breeding way of these fish is coastal pond and coastal waters net cage at present, and breeding way is more extensive, urgently promotes; Rock porgy (Oplegnathus punctatus) is under the jurisdiction of Perciformes, Shi Diao section, stone porgy belongs to, and is mainly distributed in the marine sites such as Korea, Japan and TaiWan, China island, the South Sea, the East China Sea and the Yellow Sea, fine and tender taste, good looking appearance, there is higher economic worth and ornamental value, its ferociousness of ingesting, growth fast, but is coerced particularly responsive to cultivation density, under conventional cultivation condition, the rock porgy breeding density of body weight 50-100g is more than 5kg/m
3time, its body surface easily festers, and intraspecific competition aggravation, growth rate and bait utilization obviously reduce, and therefore not yet set up high-density breeding technology at present, rock porgy is as emerging famous and precious marine fish, its relevant cultural technique research is less, near barren.
Relative to traditional aquaculture models such as pond, coastal waters net cage, batch production flowing water, circulating water cultivation has that breeding facility equipment advanced person, efficient administration, breeding environment are controlled, breeding production is high by regional space restriction, cultured output, can the feature such as products quality guarantee safety and balanced listing, society, economy and ecological benefits are good, and being known as in the world is the main development direction of modern mariculture industry.But in China because industrial circulating water cultivating technical research is started late, science and technology support is not enough, enterprise lacks technical standard, production model disunity, and many difficult points and problem continue to bring out, operation level is uneven, seriously constrains the healthy and rapid development of circulating water cultivation technology.Pearl rough gentian grouper and rock porgy belong to high added value fish, and require higher to breeding environment, are suitable for carrying out industrial circulating water cultivating.Current China industrial circulating water cultivating pearl rough gentian grouper and rock porgy technology are still in exploration and improvement stage, and cultural technique and administrative standard are urgently set up and perfect.
Mixed breed refers to the cultivation behavior implemented in same Water space according to the difference of different plant species growing space and trophic level.In pond, the mode of raising together with such as fishes and shrimps, fish shellfish, fish soft-shelled turtle still belongs to extensive management, and technology door hurdle is relatively low, applies comparatively general.But carry out very few for the fish mixed culturing technology research of industrial circulating water cultivating system, pearl rough gentian grouper and rock porgy batch production mixed culturing technology have no report especially.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method.Pearl rough gentian grouper and the mixing of rock porgy juvenile fish are put in a suitable place to breed in circulating water culture system by the present invention, by adjusting two kinds of fish stocking sizes, putting order, cultivation density ratio, management strategy and condition of water quality in a suitable place to breed, reduce or avoid interspecies competition, realize pearl rough gentian grouper and rock porgy mixed breed, improve unit of water body cultivation efficiency.
The present invention is achieved by the following technical solution:
A kind of pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method, choosing pearl rough gentian grouper healthy seedling body weight is 30-40g, rock porgy body weight is 1.5-2.0 times of pearl rough gentian grouper body weight, and adjustment pearl rough gentian Grouper cultivating density is 80-120 tail/m
3, rock porgy breeding density is pearl rough gentian grouper 1/5-1/6.
Further, described pearl rough gentian grouper should be put in a suitable place to breed prior to rock porgy, until pearl rough gentian grouper is stable ingest after after 2-3 days, put rock porgy in a suitable place to breed immediately, two kinds of fishes put in a suitable place to breed the time interval >=3 days.
Further, during described mixed breed, grouper business of throwing something and feeding manufactured feed, throw something and feed 3-4 time, feeding volume accounts for fish body weight 1.5-3%.
Further, during described mixed breed, take periodicity of illumination 14L:10D, luminous intensity 200-400 lux; Maintain water temperature 24-29 DEG C, dissolved oxygen 7-9mg/L, ammonia nitrogen≤0.8mg/L, cultured water≤0.4mg/L, COD≤2.0mg/L, salinity 27-33 ‰ in culturing pool, depth of water 80-150cm in culturing pool, water velocity 15-20cm/ second.
Further, described mixed cultivation method belongs to interim mixed breed, and durations 3.5-4.5 month, rock porgy reached listing specification requirement, and pearl rough gentian grouper carries out classification and continues breeding production.
The present invention's beneficial effect compared with prior art:
Dwell at the bottom of pearl rough gentian Epinephelus cay fish, happiness cluster, and to culturing pool, waters availability is low at the middle and upper levels; Though rock porgy belongs to cay fish, happiness cluster moves about, can efficiency utilization culturing pool waters at the middle and upper levels, and adverse current is moved about.Therefore, the present invention is according to the growing space of pearl rough gentian grouper and rock porgy, Physiological Ecology otherness and common requirement, utilize circulating water culture system technical advantage, by optimizing and revising two kinds of marine fish culture technology and management method, effectively avoid two kinds of fish interspecies competitions, efficiency utilization breeding water body space, significantly improve unit of water body cultivation efficiency; In the present invention, rock porgy cultivation density is relatively low, and intraspecific competition is more weak, and growth rate is significantly faster than the cultivation of rock porgy conventional factoryization, and the growth of pearl rough gentian grouper is unaffected; Rock porgy is utilized to have swimming type Fish behavior feature, relatively single pearl rough gentian Grouper cultivating, mixed breed can obviously increase water velocity in culturing pool, to improve in culturing pool the particles such as ight soil and get rid of efficiency, reduce circulating water culture system water treatment pressure, significantly improve cultivating system aquaculture organism bearing capacity.The present invention has enriched the technical connotation of batch production cycle water cultivation, for ensureing fish welfare, realizing healthy aquaculture and providing a kind of new approaches and new method.
If find that choosing specification rock porgy identical or less than normal raises together with pearl rough gentian grouper by research, rock porgy vigor of ingesting easily is caused obviously to reduce, and be difficult to form Aggregation behaviour, if rock porgy specification is excessive, also produce and expulsion behavior is carried out to pearl rough gentian grouper, interspecies competition aggravates, affect the growth of pearl rough gentian grouper, normal growth state is in for realizing two kinds of fish, reduce interspecies competition, according to experiment conclusion, choosing rock porgy body weight is pearl rough gentian grouper 1.5-2.0 times, and adjustment pearl rough gentian Grouper cultivating density is 80-120 tail/m
3in like manner, can ensure that the normal population behaviors such as systematicness cluster moves about appear in rock porgy, can avoid again that rock porgy population quantity is excessive to be affected pearl rough gentian grouper and ingest and own growth, the present invention determines the optimal proportion that two kinds of fishes are raised together with, and namely rock porgy breeding density is pearl rough gentian grouper 1/5-1/6.
Put quantity in a suitable place to breed due to pearl rough gentian grouper in the scheme of raising together with and be significantly higher than rock porgy, if put rock porgy in a suitable place to breed in advance, after pearl rough gentian grouper, rock porgy is not ingested for a long time; If put into two kinds of fishes simultaneously, then two kinds of shoals of fish recover stable higher level grazing rate then needs 6-7 days time, effect is raised together with in impact, therefore described pearl rough gentian grouper should be put in a suitable place to breed prior to rock porgy, until pearl rough gentian grouper is stable ingest after after 2-3 days, put rock porgy in a suitable place to breed immediately, two kinds of fishes put in a suitable place to breed the time interval >=3 days.
The present invention by the stocking size to pearl rough gentian grouper and rock porgy, put order, cultivation density ratio, management strategy and condition of water quality in a suitable place to breed, reduce or avoid interspecies competition, successfully realize pearl rough gentian grouper and rock porgy mixed breed, improve unit of water body cultivation efficiency.
Embodiment
In the following examples, the present invention is further elaborated, but the present invention is not limited thereto.
Embodiment 1
A kind of pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method, concrete operations are as follows:
Laizhou branch company Grouper cultivating workshop, ocean, east is often overlapped circulating water culture system and to be bored by Microfilter, protein foam separator, uviol lamp, ozone, oxygen and the unit for treating water that forms of biofilter and 10 culturing pools are formed, each culturing pool is adjusted to depth of water 95cm, and effective breeding water body is about 30m
3.
Put quantity and specification in a suitable place to breed: select set of system, it is 32.5 grams of pearl rough gentian grouper 3500 tails that counterpoise is put in every pond in a suitable place to breed, amounts to 35000 tails; Counterpoise is 50.2 grams of rock porgy 700 tails, amounts to 7000 tails, implements mixed breed.
Put order in a suitable place to breed: first put pearl rough gentian grouper in system in a suitable place to breed, about ingest after stablizing 3 days, then put into rock porgy, raise together with 1 day latter two fish and all can normally ingest.
Aquaculture management: raise together with period, two kinds of spot fishes are thrown something and fed a kind of seven good " match fresh fish " board grouper special compound feed simultaneously, and throw something and feed day 4 times, average feeding volume accounts for fish body weight 1.62%; Take periodicity of illumination 14L:10D, luminous intensity about 300 lux; Average temperature 26.74 DEG C in culturing pool, dissolved oxygen 8.4mg/L, ammonia nitrogen≤0.8mg/L, cultured water≤0.4mg/L, COD≤2.0mg/L, salinity 27-33 ‰, in culturing pool, the depth of water is about 100cm, and water velocity is about 18cm/ second
Raise together with the cycle: this mixed breed implementation cycle, from November 29,5 days to 2014 July in 2014, amounts to 146 days.
Culture efficiency: through 146 days mixed breeds, pearl rough gentian counterpoise rises to 304.16 grams from 32.5 grams, and rate of body weight gain is 835.88%, and specific growth rate is 1.54%, survival rate 97.49%; Rock porgy counterpoise rises to 518.33 grams from 50.21 grams, and rate of body weight gain is 932.32%, and specific growth rate is 1.60%, survival rate 98.71%; Two kinds of overall feed coefficients of fish are 1.40, and the final cultivation density of pearl rough gentian grouper is 35.16kg/m
3, the final cultivation density of rock porgy is 11.90kg/m
3, final two kinds of fish mixed breed density reach 47.10kg/m
3.Due to after 146 days mixed breeds, rock porgy has reached listing specification, and this time mixed breed terminates.
Culture efficiency contrasts: with same batch of pearl rough gentian grouper of other production group and rock porgy for contrast, wherein 3500 tails are put in the every pond of pearl rough gentian Grouper cultivating system in a suitable place to breed, initial counterpoise is 33 grams, 2000 tails are put in the every pond of rock porgy cultivating system in a suitable place to breed, counterpoise is 50.05 grams, through cultivation in 146 days, control group (single variety cultivation) pearl rough gentian grouper rises to 315.24 grams, rate of body weight gain is 852.24%, specific growth rate is 1.54%, survival rate 97.57%, final cultivation density is 35.88kg/m
3; Control group (single variety cultivation) rock porgy counterpoise rises to 403.56 grams from 50.05 grams, and rate of body weight gain is 706.31%, and specific growth rate is 1.43%, survival rate 95.85%, and final cultivation density is 25.79kg/m
3learn that mixed breed group pearl rough gentian grouper and control group are at rate of body weight gain by data analysis, specific growth rate and survival rate aspect are without significant difference, and mixed breed group rock porgy is at rate of body weight gain, specific growth rate and survival rate aspect are all significantly better than control group (single variety cultivation).In addition, two kinds of fish mixed breed final densities reach 47.10kg/m
3, be significantly higher than single cultivation density, as can be seen here, this mixed culturing technology concept feasible is high, can significantly improve unit of water body cultivation efficiency.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. a pearl rough gentian grouper and rock porgy industrial circulating water mixed cultivation method, it is characterized in that choosing pearl rough gentian grouper body weight is 30-40g, rock porgy body weight is pearl rough gentian grouper 1.5-2.0 times, and adjustment pearl rough gentian Grouper cultivating density is 80-120 tail/m
3, rock porgy breeding density is the 1/5-1/6 of pearl rough gentian grouper.
2. a kind of pearl rough gentian grouper according to claim 1 and rock porgy industrial circulating water mixed cultivation method, it is characterized in that described pearl rough gentian grouper should be put in a suitable place to breed prior to rock porgy, until pearl rough gentian grouper is stable ingest after after 2-3 days, put rock porgy in a suitable place to breed immediately, two kinds of fishes put in a suitable place to breed the time interval >=3 days.
3. a kind of pearl rough gentian grouper according to claim 1 and rock porgy industrial circulating water mixed cultivation method, during it is characterized in that described mixed breed, grouper business of throwing something and feeding manufactured feed, throw something and feed 3-4 time, feeding volume accounts for fish body weight 1.5-3%.
4. a kind of pearl rough gentian grouper according to claim 1 and rock porgy industrial circulating water mixed cultivation method, during it is characterized in that described mixed breed, take periodicity of illumination 14L:10D, luminous intensity 200-400 lux; Maintain water temperature 24-29 DEG C, dissolved oxygen 7-9mg/L, ammonia nitrogen≤0.8mg/L, cultured water≤0.4mg/L, COD≤2.0mg/L, salinity 27-33 ‰ in culturing pool, depth of water 80-150cm in culturing pool, water velocity 15-20cm/ second.
5. a kind of pearl rough gentian grouper according to claim 1 and rock porgy industrial circulating water mixed cultivation method, it is characterized in that described mixed cultivation method belongs to interim mixed breed, durations 3.5-4.5 month, rock porgy reaches listing specification requirement, and pearl rough gentian grouper carries out classification and continues breeding production.
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| CN111316939A (en) * | 2020-04-23 | 2020-06-23 | 浙江省舟山市水产研究所 | Anti-season seedling raising method for striped bass |
| CN113519417B (en) * | 2021-07-14 | 2022-03-29 | 中国水产科学研究院黄海水产研究所 | Luhai relay breeding method for oplegnathus punctatus |
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Inventor after: Liu Baoliang Inventor after: Zhao Kuifeng Inventor after: Wang Guowen Inventor after: Lei Jilin Inventor after: Liu Xinfu Inventor after: Gao Chunren Inventor after: Jia Rui Inventor after: Han Cen Inventor before: Liu Baoliang Inventor before: Zhao Kuifeng Inventor before: Wang Guowen Inventor before: Lei Jilin Inventor before: Gao Chunren Inventor before: Jia Rui Inventor before: Han Cen |
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