CN104137798B - A kind of big water surface factory fry cultivation acclimation method - Google Patents

A kind of big water surface factory fry cultivation acclimation method Download PDF

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CN104137798B
CN104137798B CN201410370113.0A CN201410370113A CN104137798B CN 104137798 B CN104137798 B CN 104137798B CN 201410370113 A CN201410370113 A CN 201410370113A CN 104137798 B CN104137798 B CN 104137798B
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feeding
day
net cage
cultivation
branch mailbox
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CN104137798A (en
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田建洲
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JINGZHOU HONGDA FISHERY Co Ltd
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JINGZHOU HONGDA FISHERY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Abstract

The present invention relates to a kind of big water surface factory fry cultural method, belong to technical field of aquaculture. the present invention is by large reservoir, the water surface in lake builds breeding plant, prelarva can be made to be in growth in relatively natural environment, and along with the growth of prelarva (fry), progressively branch mailbox cultivation when artificial interference, and pass through the increase of feeding amount and successively decrease, it is carried out the existence training under natural conditions, adapt it to the growth under natural environmental condition, the fry survival rate after input can be made to increase substantially, thus solving in existing big water surface breeding process, fry is by transhipment road, the factors such as water quality and environmental adaptation affects, after causing input, survival rate is relatively low, the problem that govern marketable fish breeding production to a certain extent. the cultivation of big water surface batch production marketable fish had positive dissemination.

Description

A kind of big water surface factory fry cultivation acclimation method
Technical field
The present invention relates to a kind of big water surface factory fry cultivation acclimation method, belong to technical field of aquaculture.
Background technology
At present, fish culture is hatched, and is usually and adopts traditional hatching pattern, namely in outdoor, parent fish is promoted the sexual maturity so that it is natural spawning, then adopts the method for circular hatching channal or hatching barrel that fish roe is hatched. Circular hatching channal generally build outdoor in, and place is larger, and construction cost is higher, is mainly used as the artificial incubation of four everybody fries. Hatching barrel is a bucket-shaped cylinder, support hold up, and its structure is single, under not having special auxiliary facility premise, it is impossible to individually realize hatching function and incubation condition also more difficult control. Both compare, and the hatching amount of circular hatching channal to be significantly larger than the hatching amount of hatching barrel. But, the method for circular hatching channal hatching fry is big by the impact of external source and weather, once weather occurs abnormal, such as cold current etc., can badly influence the activity of laying eggs of parent fish, incubation rate and survival rate of seedling. There is the defect that single pond fish Seedling yields poorly simultaneously, the restriction very big in a planned way carrying out commercialization fry generation, become the key link that restriction fry produces. On the other hand, although the hatching amount of existing circular hatching channal to be significantly larger than the hatching amount of hatching barrel, but it is also difficult to meet the big water surface, cultivation supply volume requirement such as reservoir, lake, and in existing big water surface breeding process, fry is affected by factors such as transhipment road, water quality and environmental adaptations, and after causing input, survival rate is relatively low, governs the breeding production of marketable fish to a certain extent.
Summary of the invention
It is an object of the invention to: provide one to be greatly improved production capacity and cultured output, meet big water surface aquaculture supply volume requirement, solve in existing big water surface breeding process, fry is affected by factors such as transhipment road, water quality and environmental adaptations, after causing input, survival rate is relatively low, governs the big water surface factory fry cultivation acclimation method of marketable fish breeding production problem to a certain extent.
The technical scheme is that
A kind of big water surface factory fry cultivation acclimation method, it is characterised in that: it comprises the following steps;
1), the construction of breeding plant:
Large reservoir, lake the water surface on build movable plank house initially with floating drum;The water surface in movable plank house is divided into multiple rectangular indoor culture pond by floating drum by the specification of 13 �� 3m, periphery in each indoor culture pond has fixedly mounted division board by floating drum simultaneously, the height of division board is 150 180cm, in movable plank house, lay attemperating unit simultaneously, in each indoor culture pond, then set up the indoor net cage that specification is 2 �� 12m respectively; Setting up a sparge pipe again above each net cage respectively, finally on the water surface of movable plank house periphery, structure sets the outer net cage of cultivation of multiple different size;
2) after, breeding plant construction construction completes, the prelarva of outsourcing or hatching is put into respectively in each indoor net cage in movable plank house by certain quantity, put into the prelarva in each net cage and need to arrange for professional's timing inspection, and mixed once feedstuff of regularly throwing something and feeding, throw something and feed after end every time, open sparge pipe and each net cage is carried out water spray oxygen supplement;
3), after 7 10 days, after the prelarva of indoor each net cage grows into the spray that length is about 0.8cm, by the mode of 1 point 2, the spray of each net cage is moved to cultivation outer net cage branch mailbox cultivation, number of times of throwing something and feeding in spray breeding process is throw something and feed once in 6 hours, and changing mixed fodder into compound, each feeding volume cultivating each compound of outer net cage presses 2 3% calculating of spray weight; The mode of throwing something and feeding is, and to be covering of the fan by compound by vessel splash cultivating Multipoint Uniform in outer net cage;
4) after, spray cultivates 7 10 days, cultivate by the mode of 1 point 2 branch mailbox again, changed into every 8 hours by the number of times of throwing something and feeding of outer for each cultivation net cage throws something and feeds once simultaneously, and the initial feeding volume of compound controls in the 2 3% of spray weight, then by each 200 grams of incremental feeding volumes every day;
5), after the spray cultivation 7 10 of branch mailbox cultivation again, carrying out the 3rd branch mailbox by the mode of 1 point 2, the number of times of throwing something and feeding of the compound after the 3rd branch mailbox is appointed and was thrown something and fed once for every 8 hours, initial feeding volume is spray weight the 2 3% of first day; Then by each 200 grams of incremental feeding volumes every day;
6), after the 3rd branch mailbox cultivate 7 10 days, carrying out the 4th branch mailbox by the mode of 1 point 2, the number of times of throwing something and feeding of the compound after the 4th branch mailbox is every day 3 times, initial feeding volume is spray weight the 2 3% of first day; ; Then by each 300 grams of incremental feeding volumes every day; After the 4th branch mailbox cultivates 7 10 days, spray can grow up to the body length very little sheet (fry) more than 3.3cm;
7), very little sheet is undertaken after the 5th branch mailbox cultivates 7 10 days by the mode of 1 point 2, then within every 8 days, it is a cultivation phase carry out the 6th and the 7th branch mailbox by the mode of 1 point 2, feeding volume after 5th, 6,7 branch mailbox is thrown something and fed by the 2 3% of very little sheet weight, is no longer incremented by feeding volume;
8), after the 7th branch mailbox cultivation 7 10, very little sheet can grow up to the fry of long about the 10cm of body, and number of times of now throwing something and feeding changes every day into 2 times, and feeding volume is with the feeding volume of the 7th time for benchmark; Changing into after throwing something and feeding for 2 times every day 3 days cultivated and throwing something and feeding for 1 time every day, feeding volume successively decreases by the 5% of feeding volume; Continue cultivation 7 days.
9), every day throw something and feed for 1 time after cultivation 7 days, fry can be put into the large-scale water surface such as reservoir, lake in units of the outer net cage of each cultivation in batches naturally cultivate.
Described mixed fodder is by analysis for soybean powder 55%, milk 40%, yolk powder (self-control) 4% and what retinol1 % was mixed.
Described compound is commercially available by fry PP Pipe Compound 90%() and fishbone powder 10%(commercially available) be mixed.
It is an advantage of the current invention that:
This big water surface factory fry cultural method is by large reservoir, the water surface in lake builds breeding plant, prelarva can be made to be in growth in relatively natural environment, and along with the growth of prelarva (fry), progressively branch mailbox cultivation under artificial interference, and the increase of feeding amount and successively decreasing, make it when satisfied growth, progressively reform of nature environment, the fry survival rate after input is thus made to increase substantially, thus solving in existing big water surface breeding process, fry is by transhipment road, the factors such as water quality and environmental adaptation affects, after causing input, survival rate is relatively low, the problem that govern marketable fish breeding production to a certain extent.The cultivation of big water surface batch production marketable fish had positive dissemination.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of breeding plant of the present invention;
Fig. 2 is the schematic cross-section of breeding plant of the present invention.
In figure: 1, floating drum, 2, movable plank house, 3, indoor culture pond, 4, division board, 5, attemperating unit, 6, indoor net cage, 7, sparge pipe, 8, cultivate outer net cage.
Detailed description of the invention
First large reservoir, lake the water surface on adopt floating drum 1 to build the movable plank house 2 of 300 square metres; The water surface in movable plank house 2 is split structure by floating drum 1 by the specification of 3 �� 13m and is set as multiple rectangular indoor culture pond 3. Then having fixedly mounted division board 4 at the periphery of culturing pool 3 by floating drum 1, the height of division board 4 is 150 180cm. It is make the water body between each culturing pool relatively independent that the purpose of division board 4 is installed in indoor culture pond 3, reduces surge phenomenon as far as possible; Thus creating the Cultivated water of a water body geo-stationary. Simultaneously laying attemperating unit 5 movable plank house 2 in, is between 20 30 degree all the time controlling the temperature in movable plank house 2.
The indoor net cage 6 that specification is 2 �� 12m is set up respectively in each indoor culture pond 3; The bottom of indoor net cage 6 requires into water 120 150cm, the mesh density of indoor net cage 6 is as the criterion so that prelarva can be stoped to spill, above each indoor net cage 6,40cm place, dried up face 30 sets up a sparge pipe 7 respectively again, uses increase oxygen in the breeding process in later stage each indoor net cage 6. Finally on the water surface of movable plank house 2 periphery, structure sets the outer net cage 8 of cultivation of multiple 12 �� 6m 12 �� 24m different size, and the bottom cultivating outer net cage 8 requires that its underwater penetration is with cage size from small to large into water 2 5m, from shallow to deep, the deepest with 5m for the limit. Cultivate the periphery of outer net cage 8 without installing division board 4.
After breeding plant construction construction completes, at the beginning of annual 5 months, when extraneous temperature averages is higher than 20 degree, the Mylopharyngodon piceus of outsourcing or hatching or Ctenopharyngodon idellus or Hypophthalmichthys molitrix or Aristichthys nobilis prelarva are put in each indoor net cage 6 in movable plank house 2 respectively in units of 1,000,000 tails, put into the prelarva in each indoor net cage 6 and need to arrange for professional's timing inspection in 24 hours, the mixed fodder of each indoor net cage 6 every 4 hours pasty states of throwing something and feeding, mixed fodder is mixed by analysis for soybean powder 55%, milk 40%, yolk powder 4% and retinol1 %. The feeding volume of each mixed fodder is 500 600 grams; The mode of throwing something and feeding is, and to be linear by the mixed fodder of pasty state by vessel spill at each indoor net cage 6 internal hemorrhage due to trauma, forbids to be that covering of the fan is splashed; Feeding volume was incremented by by each 100 grams of every day. Throw something and feed after terminating 1 hour every time, open sparge pipe and each net cage is carried out water spray oxygen supplement 1 hour, to increase the oxygen content of water body, thus improving the survival rate of prelarva.
After 10 days, after the prelarva of each indoor net cage 6 grows into the spray that length is about 0.8cm, by the mode of 1 point 2, spray in each indoor net cage 6 is moved to cultivation outer net cage 8 branch mailbox (expansion case) cultivation, number of times of throwing something and feeding in spray breeding process is throw something and feed once in 6 hours, and mixed fodder is changed into compound, compound is mixed by fry PP Pipe Compound 90% and fishbone powder 10%. Each feeding volume cultivating the outer each mixed fodder of net cage 8 calculates by the outer net cage 8 of each cultivation the 2% of spray gross weight; Feeding volume was incremented by by each 200 grams of every day; The mode of throwing something and feeding is, and to be covering of the fan by compound by vessel splash cultivating Multipoint Uniform in outer net cage 8.The purpose that feeding volume is incremented by is to ensure that the nutritional need that water peanut is long-term.
After spray cultivates 10 days, cultivating by the mode of 1 point 2 branch mailbox again, changed into every 8 hours by the number of times of throwing something and feeding of outer for each cultivation net cage 8 simultaneously and throw something and feed once, the initial feeding volume of compound controls in the 2.5% of spray weight, then by each 200 grams of incremental feeding volumes every day. The spray of branch mailbox cultivation cultivated after 10 days again, carried out the 3rd branch mailbox by the mode of 1 point 2, and the number of times of throwing something and feeding of the compound after the 3rd branch mailbox is appointed and thrown something and fed once for every 8 hours, initial feeding volume is spray weight about the 3% of first day; Then by each 200 grams of incremental feeding volumes every day.
3rd branch mailbox carries out the 4th branch mailbox by the mode of 1 point 2 after cultivating 10 days, and the number of times of throwing something and feeding of the compound after the 4th branch mailbox is every day 3 times, and the initial feeding volume of first day is for spray weight about 3%; Then by each 300 grams of incremental feeding volumes every day; After the 4th branch mailbox cultivates 10 days, spray can grow up to the body length very little sheet (fry) more than 3.3cm.
Being undertaken after the 5th branch mailbox cultivates 7 10 days by very little sheet by the mode of 1 point 2, then within every 8 10 days, be a cultivation phase carry out the 6th and the 7th branch mailbox by the mode of 1 point 2, the feeding volume after the 5th, 6,7 branch mailbox is thrown something and fed by the 3% of very little sheet weight, is no longer incremented by feeding volume. After after 7th time branch mailbox has cultivated, very little sheet can grow up to the fry that body length is about 10cm. Number of times of now throwing something and feeding changes every day into 2 times, and feeding volume is with the feeding volume of the 7th time for benchmark; Throwing something and feeding for 2 times every day to change into after cultivating 3 days and throw something and feed for 1 time every day, feeding volume successively decreases by the 5% of feeding volume; Continue cultivation 7 days. After 7 days, fry can be put into the large-scale water surface such as reservoir, lake in units of the outer net cage of each cultivation in batches naturally cultivate.
In 7 branch mailbox processes of cultivation phase, during each branch mailbox, the specification cultivating outer net cage 8 to incrementally increase, and the underwater penetration of net cage progressively to be deepened, make its underwater penetration being finally reached 5 meters, with ensure fry progressively can in deeper of water body movable, reform of nature growing environment as early as possible, the mesh density simultaneously cultivating outer net cage 8 to increase relatively, is as the criterion can prevent spray or fry from spilling, and the purpose that mesh density increases relatively is to increase the property passed through of breeding water body, thus accelerating to cultivate the replacement frequency of water body in outer net cage, it is ensured that the oxygen content of water body and water purity in net cage. after large-scale water surface such as fry input reservoir, lake etc. cultivates naturally, due to fry cultivating for a long time under artificial condition, ability of looking for food in natural environment still has certain shortcoming, and the waters of breeding plant periphery can be produced certain dependency, have part fry behind fry throwing side to cruise in the waters of breeding plant periphery, therefore, must continue manually to throw something and feed compound 7 days by 40 50 kilograms of injected volumes once a day in the waters of breeding plant periphery, injected volume started to successively decrease with 58 kilograms of amounts from the 3rd day every day, with to this part fry one from artificial to the emergent switch transition of natural environment, and force it to look for food in natural environment.
Owing to the large-scale water surface such as reservoir, lake cultivates marketable fish, prosthetic throws in feedstuff, Fish under natural conditions are completely by self looking for food, fry later stage breeding process of the present invention is thrown something and fed the minimizing of number of times and successively decreasing of feeding volume, its objective is progressively to imitate natural environment, fry is carried out the existence training under natural conditions, make the growth under fry reform of nature environmental condition as early as possible, thus the survival rate of fry after ensureing input, the fry of present invention cultivation, its survival rate can be brought up to 90% 95% by the survival rate of existing pond rearing fry 50% 60%.
The present invention is by large reservoir, the water surface in lake builds breeding plant, prelarva can be made to be in growth in relatively natural environment, and along with the growth of prelarva (fry), progressively branch mailbox cultivation when artificial interference, and pass through the increase of feeding amount and successively decrease, it is carried out the existence training under natural conditions, adapt it to the growth under natural environmental condition, the fry survival rate after input can be made to increase substantially, thus solving in existing big water surface breeding process, fry is by transhipment road, the factors such as water quality and environmental adaptation affects, after causing input, survival rate is relatively low, the problem that govern marketable fish breeding production to a certain extent. the cultivation of big water surface batch production marketable fish had positive dissemination.

Claims (1)

1. a big water surface factory fry cultivation acclimation method, it is characterised in that: it comprises the following steps;
1), the construction of breeding plant:
Large reservoir, lake the water surface on build movable plank house (2) initially with floating drum (1); The water surface in movable plank house (2) is divided into multiple rectangular indoor culture pond (3) by floating drum (1) by the specification of 13m �� 3m, fixedly mounted division board (4) at the periphery of each indoor culture pond (3) by floating drum (1) simultaneously, the height of division board (4) is 150 180cm, simultaneously laying attemperating unit (5) movable plank house (2) in, then sets up the indoor net cage (6) that specification is 2m �� 12m respectively in each indoor culture pond (3); Setting up a sparge pipe (7) respectively in the top of each indoor net cage (6) again, finally on the water surface of movable plank house (2) periphery, structure sets the outer net cage (8) of cultivation of multiple different size;
2) after, breeding plant construction completes, the prelarva of outsourcing or hatching is put into respectively in each indoor net cage (6) in movable plank house (2) by certain quantity, put into the prelarva in each indoor net cage (6) and need to arrange for professional's timing inspection, and mixed once feedstuff of regularly throwing something and feeding, throw something and feed after end every time, open sparge pipe (7) and each indoor net cage (6) is carried out water spray oxygen supplement;
3), after 7 10 days, after the prelarva of indoor net cage (6) grows into the spray that length is about 0.8cm, by the mode of 1 point 2, the spray of each indoor net cage (6) is moved to cultivation outer net cage (8) branch mailbox cultivation, number of times of throwing something and feeding in spray breeding process is throw something and feed once in 6 hours, and changing mixed fodder into compound, each feeding volume cultivating outer net cage (8) compound every time is pressed the 2 3% of spray weight and is calculated; The mode of throwing something and feeding is, and to be covering of the fan by compound by vessel splash cultivating Multipoint Uniform in outer net cage (8);
4) after, spray cultivates 7 10 days, cultivate by the mode of 1 point 2 branch mailbox again, changed into every 8 hours by the number of times of throwing something and feeding of outer for each cultivation net cage (8) throws something and feeds once simultaneously, and the initial feeding volume of compound controls in the 2 3% of spray weight, then by 200 grams of incremental feeding volumes each every day; That is, the feeding volume that every day is each is consistent, is incremented by feeding volume between every day;
5) spray that branch mailbox cultivates, again carries out the 3rd branch mailbox by the mode of 1 point 2 after cultivating 7 10 days, and the compound after the 3rd branch mailbox throws something and feeds number of times still within every 8 hours, to throw something and feed once, initial feeding volume is spray weight the 2 3% of first day; Then by 200 grams of incremental feeding volumes each every day; That is, the feeding volume that every day is each is consistent, is incremented by feeding volume between every day;
6), after the 3rd branch mailbox cultivate 7 10 days, carrying out the 4th branch mailbox by the mode of 1 point 2, the number of times of throwing something and feeding of the compound after the 4th branch mailbox is every day 3 times, initial feeding volume is spray weight the 2 3% of first day;Then by 300 grams of incremental feeding volumes each every day; That is, the feeding volume that every day is each is consistent, is incremented by feeding volume between every day; After the 4th branch mailbox cultivates 7 10 days, spray can grow up to the body length very little sheet more than 3.3cm;
7), very little sheet is undertaken after the 5th branch mailbox cultivates 7 10 days by the mode of 1 point 2, then within every 8 10 days, it is a cultivation phase carry out the 6th and the 7th branch mailbox by the mode of 1 point 2, feeding volume after 5th, 6,7 branch mailbox is thrown something and fed by the 2 3% of very little sheet weight, is no longer incremented by feeding volume;
8), after the 7th branch mailbox cultivate 8 10 days, very little sheet can grow up to the fry of long about the 10cm of body, and number of times of now throwing something and feeding changes every day into 2 times, and the feeding volume that feeding volume cultivates with the 7th branch mailbox is for benchmark; Cultivation of throwing something and feeding for 2 times every day changes into and throwing something and feeding for 1 time after 3 days every day, and every day, the feeding volume of 1 time was with the feeding volume of the 7th time for benchmark; Every day successively decreases by 5%; Continue cultivation 7 days;
9), every day throw something and feed for 1 time after cultivation 7 days, fry can be put into reservoir in units of the outer net cage of each cultivation in batches, lake large-scale water surface cultivates naturally;
Described mixed fodder is by analysis for soybean powder 55%, milk 40%, yolk powder 4% and what retinol1 % was mixed;
Described compound is by fry PP Pipe Compound 90% and what fishbone powder 10% was mixed.
CN201410370113.0A 2014-07-31 2014-07-31 A kind of big water surface factory fry cultivation acclimation method Active CN104137798B (en)

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CN103190369B (en) * 2013-04-10 2015-03-25 上海海洋大学 Sparidae fish domestication method for marine ranching
CN103238538A (en) * 2013-04-24 2013-08-14 杨成胜 Combined mandarin fish fries cultivating net cage and using method
CN103299941A (en) * 2013-07-01 2013-09-18 蒋石容 Method for cultivating and domesticating monopterus fries
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