CN102805046A - Night culture method of loach using lamplight - Google Patents
Night culture method of loach using lamplight Download PDFInfo
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- CN102805046A CN102805046A CN2012102797993A CN201210279799A CN102805046A CN 102805046 A CN102805046 A CN 102805046A CN 2012102797993 A CN2012102797993 A CN 2012102797993A CN 201210279799 A CN201210279799 A CN 201210279799A CN 102805046 A CN102805046 A CN 102805046A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- 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
Abstract
The invention discloses a night culture method of loach using lamplight. The night culture method of the loach using lamplight includes the steps of sterilization, water change, fertilizer application, addition of photosynthetic bacteria, seed addition, seed raising and the like. During the culturing, night lamplight is used to attract palatable bait (plankton) of fry to gather to pond surface, the palatable bait serves as night prey for the fry, and accordingly no fertilizer is added. The night culture method of loach using lamplight also includes advanced fry culture process. Food intake of the fry increases. A small amount of fertilizer is added during night lighting to promote growth of the advanced fry. The survival rate of the fry of the loach cultured by the night culture method reaches more than 50%, and the survival rate of summerlings reaches more than 90%.
Description
Technical field
The invention belongs to technical field of aquaculture, relate generally to the night lights breeding method of loach.
Background technology
The loach delicious flavour, fine and tender taste, nutritious, be described as " genseng in the water ".Loach contains rich in protein and multivitamin; Fat and cholesterol level are few, belong to high protein and low fat food, and loach contain a kind of unsaturated fatty acid of similar twenty carbon penetenoic acid; Help the anti-angiogenic aging of human body, so be of value to the elderly and cardiovascular patient.Also contain abundant nucleosides in the loach body, nucleosides is the Main Ingredients and Appearance of various vaccines, can improve the health anti-virus ability.In addition, loach property is flat, flavor is sweet, has tonifying middle-Jiao and Qi, dehumidifying removing jaundice, kidney-nourishing is supporing yang, eliminating dampness to stop diarrhea, warming spleen and stomach, treatment hemorrhoid, the effect of ending abnormal sweating.Loach receives liking of more more people with its splendid edibility and medical value.
In recent years, loach domestic and international market demand constantly increases, and price also raises up thereupon, has effectively promoted loach and has propagated prosperity and development already artificially.Loach is propagated artificially and comprises that hatch fish roe, fry rearing, fingerling are cultured, the one-tenth loach is cultured four-stage.Fry rearing is that fry rearing is become the summer flower fingerling, and this process approximately continues 1 month.Fry is called the spray seedling again, is the just loach young baby of hatching, because spray seedling individuality is tiny, the ability of moving about, the scope of ingesting is little, ingestion ability is low, resist a little less than the extraneous infringement ability, its survival rate is lower.Therefore, propagate fry rearing difficulty maximum in the process artificially loach, survival rate is minimum, is merely 0～20%, is the core stage in the loach artificial culture technology, directly determines the win or lose that loach is propagated artificially.
Summary of the invention
The technical problem that the present invention will solve provides the night lights breeding method of a kind of loach, and this method is utilized illumination at night, lures that germs collect is convenient to loach feed at night in the pond on the face of pond into.In the fry rearing phase, need not throw basically and spread any feed; In the fingerling breeding process, only need throw and spread a small amount of feed, practiced thrift aquaculture cost greatly.
The technical scheme that the present invention will provide is the biology culture method of a kind of loach, and this method comprises fry rearing, promptly cultivates to the process of summer flower fingerling from the spray seedling, and this process may further comprise the steps:
1) sterilization: the pond is done after the pond handles, throw in the pond in the ratio in 100～150kg/ mu pond and spread quicklime, adding water to the depth of water is 10～20cm, sterilizes 7～14 days;
2) change water: the water pump drainage in the pond is clean, the new water of annotating;
3) fertilising: in the pond behind the Xiang Huanshui, according to the ratio in the dried soya bean of 8～12kg/mu pond, with dried soya bean making beating back full pool spilling head, again according to the ratio in 8～12kg omnivorousness fish meal/mu pond, full pond is evenly thrown and is spread omnivorousness fish meal, compost 7～10 days;
4) add photosynthetic bacteria:, throw in the pond and spread photosynthetic bacteria according to the ratio in 8～12kg/ mu pond;
5) put seedling: the pond face is carried out 5～10 days night illumination operation; Salvage insect, with the ratio in 5～10kg/ mu pond, with dried soya bean making beating back full pool spilling head; Again with the ratio in 5～10kg/ mu pond; Full pond is evenly thrown and is spread the omnivorousness fish meal, according to the ratio in 50～1,000,000 tail water flower seedling/mu ponds, the spray seedling is thrown in to the pond at last;
6) grow seedlings:, obtain the summer flower fingerling to spray seedling 30 days; In nursery stage, whenever added photosynthetic bacteria in the ratio in 8～12kg/ mu pond to the pond at a distance from 5～7 days, and between nursery stage the 1st～20 day, the night illumination operation is carried out in the pond.
In the step 1) of technique scheme; Quicklime that adds in the pond and water reaction; Can discharge great amount of heat and generate slaked lime, high temperature and highly basic double action can make the protein denaturation in the bacterium, reach the effect of kill bacteria; Utilize limewash (aqua calcis) to pond sterilization 7～14 days, harmful insect, insect young baby and bacteria inactivation rate effect are better.
For further strengthening Disinfection Effect of the present invention, above-mentioned steps 1) in, handle the back to doing the pond, add before the lime disinfection; Can also carry out 5～6 days being exposed to the sun to the pond; Not only can kill the harmful microorganism at the bottom of the pond, can also quicken organic matter and decompose, improve the fertility of substrate.
The step 2 of technique scheme) in, with limewash pump drainage in the pond clean after, after can water washing repeatedly, the new water of annotating again, PH＜8 of guaranteeing the pond are for good.New water is generally selected river or underground water after 60～80 order mesh screens filter for use, because mesh screen can filter the pest in river or the underground water, prevents that addition to the depth of water of new water is that 60～80cm is advisable into pond injury fry.
In the step 3) of technique scheme, the soya bean of in the pond, splashing making beating and add the omnivorousness fish meal water quality of fostering and apply fertilizer is after 7～10 days; Water body darkens; Microorganism breeds in a large number in the water body, contains more plankton, and especially the open-mouthed bait of spray seedling is biological.
In the step 4) of technique scheme, add photosynthetic bacteria to the pond, its dosage is 8～12kg/ mu pond.Photosynthetic bacteria is a kind of nutritious, bacterium of being of high nutritive value, and it is higher that thalline contains rich in amino acid, folic acid, b family vitamin, especially vitamin b12 and vitamin h content, also has the physiological activator ubiquinone.The volume of photosynthetic bacteria is 1/20th of a chlorella, is particularly suitable for the open-mouthed bait as the spray seedling.The enzyme that photosynthetic bacteria is contained can promote fry to the digesting and assimilating of feed, and improves efficiency of feed utilization, reduces feed coefficient, also can significantly improve the growth rate of fry simultaneously, improves the survival rate of fry.Simultaneously; Photosynthetic bacteria can the degrade remaining feed in the water body, metabolic waste and other organic matters of spray seedling; Can also absorb harmful substances such as ammonia in the water body, nitrite, hydrogen sulphide; Can effectively avoid the accumulation of solid organic matters and harmful substance, reach and purify water, improve the effect of water transparency.In addition, apply photosynthetic bacteria in the water body after, the algae that fries such as diatom, chlorella are liked ingesting becomes preponderant algae, harmful algaes such as blue-green algae then are suppressed.
In the step 5) of technique scheme, utilize the phototaxis of insect, the pond face is carried out night illumination, can a large amount of harmful insects such as kyllinga brevifolia, water dragonfly, water cockchafer adult be attracted to Chi Mianshang, be convenient to artificial the salvaging.After 5～10 days salvaging, the harmful insect on the face of pond is fished for totally basically, and loach spray seedling can descend the pool.
Be further to strengthen beneficial effect of the present invention, after step 3), before the step 5), can carry out the Quan Chi diagonal angle to the pond and draw in the net; Screen distance is the best with 60～80 orders.The diagonal angle draws in the net before the pool under the spray seedling, and the harm of the pests such as harmful insect, frog's egg, tadpole and wild trash fish in filtering water spray seedling influences its survival rate again.
In the step 6) of technique scheme, to spray seedling 30 days, during every photosynthetic bacteria that added 8～12kg/ mu pond at a distance from 5～7 days.Nursery stage the 1st～20 day carries out the night illumination operation to the pond, because the phototaxis of microorganism; Microorganism in the pond (open-mouthed bait of spray seedling) can gather Chi Mianshang in large quantities; Be convenient to the predation at night of spray seedling, light can accumulate on the water surface by adult pest simultaneously, is convenient to artificial the salvaging; Prevent the insect fry that eats, increase spray seedling survival rate.Put the insect of omitting when night before the seedling salvaging the insect operation, in 30 days nursery stage, can salvage totally basically.At preceding 3 days of nursery stage, also can carry out night illumination to the pond, because preceding 3 days of coming out of spray seedling hatching just, the fish body has yolk sac, waist point (fish glue) also and does not form, and can't move about flexibly, and endogenous nutrition can supply metabolism needs, need not to take food.Nursery stage the 21st～30 day, because the spray seedling is after through 20 days cultivation, build increases; Carrying out the transition to general from simple cheek breathing breathes; The ability of moving about strengthens, the expanded range of moving about, and the spray seedling begins to take place the transformation of feeding habits; Progressively, breed thread algae, plant roots, stem, leaf and humus at the bottom of the pond that begins to eat food in a large number by carnivorous excessive to omnivorousness.At back 10 days of nursery stage, fry need not swim over to water surface predation plankton, therefore stops night illumination.Through 30 days cultivation, the spray seedling was grown into the summer flower fingerling, and its body length is 3～6cm, and survival rate is more than 50%, and this stage need not thrown and spread any fish meal.In the fry rearing process of the present invention, repeatedly add photosynthetic bacteria, can guarantee that water body is totally transparent in this process, so this process need not changed water.
The present invention also comprises the fingerling breed, and this process continues 30 days, in this process, the night illumination operation is recovered in the pond, during night illumination, throws every night and spreads the omnivorousness fish meal of summer flower fingerling gross weight 1%～2%.Because in the fry rearing later stage, moss, algae are by spray seedling approach exhaustion at the bottom of the pond, the summer flower fingerling must float to Chi Mianshang once more and seek food, therefore recovers night illumination.Therefore summer flower fingerling build is bigger, and appetite increases than the fry phase greatly, and the microorganism in the pond can not have been satisfied it and grown requiredly, needs suitably to replenish the omnivorousness fish meal.During night illumination, light shines Chi Mianshang, and a large amount of microorganisms, insect (are beneficial insects basically; Like the water mosquito etc.,, just continue to salvage if any water cockchafer, water dragonfly, kyllinga brevifolia), insect larvae and summer flower fingerling accumulate in Chi Mianshang; Various biological food chains that form, throw to the pond face and spread feed this moment, and various biologies can appear spherical when grabbing food; Loach summer flower fingerling in groups is in robbing the food process, with a large amount of microorganisms, insect larvae and the feed of eating.After this a group loach has enough, can slip at the bottom of the pond, following a group loach swims to the water surface and looks for food, continue to throw and spread feed, until no longer include loach swim look for food to the water surface till.The feed that throwing is spread also can be used as the nutriment of microorganism except the food that serves as loach, promote the microbial growth breeding, maintains the balance of pond ecosystem.In this process, the average dosage of feed every night is 1%～3% of a summer flower fingerling gross weight, cultures through 30 days fingerlings, and the body length of loach is grown to 6～12cm, can get into into loach and culture the stage, and the survival rate of summer flower fingerling reaches more than 90%.
In the above-mentioned fingerling breeding process, preceding 20 days throw the omnivorousness fish meal that spreads is jetsam, and its protein content is about 30%; Along with the continuous growth of summer flower fingerling, the protein deficient of jetsam grew to supply with fingerling, from the 21st day; Change jetsam into buoyant, the protein content of buoyant is 39%.
For further beneficial effect of the present invention, in the fingerling breeding process, whenever added one time photosynthetic bacteria at a distance from 5～7 days, each dosage is 8～12kg/ mu pond.
Night illumination of the present invention is to utilize illuminating lamp to the pond illumination of turning on light after the darkness; Illuminating lamp is installed in 30～40cm place, vertical range water surface top, throws for ease and spreads fish meal, and illuminating lamp is installed in horizontal range bank 150cm and is advisable, and 8～16 illuminating lamps are installed in every mu of pond, and illuminating lamp is selected the incandescent lamp of 100～200W for use.Generally speaking, the night illumination duration is 3～6 hours/evening, but can be according to the loach face quantity proper extension illumination duration that swims to the pond.When temperature is higher, can delay lighting time, treat that water temperature is reduced to 25～32 ℃ after, the illumination of turning on light again prevents that water surface temperature is too high, the injury loach.
In breeding process of the present invention; During the night illumination; Can clear view to the micro organism quantity of pond face, when finding micro organism quantity more after a little while, need irregularly topdress to the pond; Append the dried soya bean of 8～12kg/making beating back, mu pond full pool spilling head, and 8～12kg omnivorousness fish meal/mu pond is spread in throwing to the pond at every turn.
Compared with prior art, beneficial effect of the present invention is following:
1, the present invention imposes soya-bean milk in the water body and feed is a fertilizer, the water body of fostering and apply fertilizer, the plankton in the water body breeds in a large number, for the spray seedling fast growth sufficient agreeable to the taste bait is provided.
2, night illumination operation can lure plankton to accumulate in Chi Mianshang, is convenient to the predation at night of spray seedling; Simultaneously, a large amount of insects also gathers Chi Mianshang, is convenient to artificial the salvaging, prevents that insect from engulfing fry, improves spray seedling survival rate.
3, the survival rate of spray seedling can reach more than 50% in the night lights breeding method of loach according to the invention, and the survival rate of summer flower fingerling can reach more than 90%.In the fry rearing phase, do not need extra throwing to spread any feed, culture the phase at fingerling, feed is adding less, has practiced thrift aquaculture cost greatly.
Embodiment
The present invention will be described with specific embodiment below, but the present invention is not limited to following examples.
Embodiment 1
During the fry rearing, its step is following:
1) sterilization: 1 mu pond is done after the pond handles, divide heap to throw in to the pond 100kg quicklime, adding water to the depth of water was 10cm, and quicklime and reaction obtain slaked lime, stir, and are limewash, with limewash soaking disinfection 7 days.
2) change water: the limewash pump drainage in the pond is clean, add water and wash repeatedly, until pH value＜8, water to be drained, river to the depth of water of filling after 60 order mesh screens filter is 60cm.
3) fertilising: 8kg is done soybean with water making beating back full pool spilling head, the full pond of the safe rich board omnivorousness fish meal of 8kg (bright and beautiful peak feed factory) is evenly thrown spread compost 7 days again.Water body darkens, and microorganism breeds in a large number in the water body, contains more plankton, and especially the open-mouthed bait of spray seedling is biological.
4) in the pond, add the 8kg photosynthetic bacteria for the first time.
5) put seedling: vertical range pond face 30cm, 150cm place, horizontal range bank in the pond; Around 8 the 100W illuminating lamps that evenly distribute around the pond, the illumination 3 hours of turning on light from 8 o'clock to 11 o'clock night utilizes the effect of night lights to lure that insect assembles the pond face into; Artificial salvaging water cockchafer, water dragonfly, kyllinga brevifolia adult; Salvaged 5 days continuously, insect disappears basically, stops night illumination and salvaging.Splashed in the lump to the pond in 5kg dried soya bean making beating back and the safe rich board omnivorousness fish meal of 5kg (bright and beautiful peak feed factory) again, 500,000 tail loach spray seedlings are thrown in to the pond.
6) grow seedlings: to spray seedling 30 days, whenever added the 8kg photosynthetic bacteria at a distance from 5 days in the nursery stage, and nursery stage is interior that the night illumination operation is carried out in the pond, concrete operations are following:
Nursery stage the 1st～20 day is turned on light to the pond and to be carried out the night illumination operation;
Nursery stage the 21st～30 day stops night illumination to the pond;
After 30 days cultivation, obtain the summer flower fingerling, the body length of measuring the summer flower fingerling is 3～6cm, and its quantity is about 300,000 tails, about 1000/jin, during need not throw and spread any feed.
During fingerling was cultured, its step was following:
This process continues 30 days; Whenever added the 8kg photosynthetic bacteria at a distance from 5 days; Turn on light and threw light on 3 hours night in this process; At the omnivorousness fish meal that in the pond, adds summer flower fingerling gross weight 1% during the night illumination every night, added safe rich board omnivorousness fish meal (bright and beautiful peak feed factory)--jetsam in preceding 20 days, No. 0 (bright and beautiful peak feed factory)--the buoyant that added pool lice in back 10 days.Measuring the body length of culturing the loach after 1 month is 6～12cm, and its quantity is about 280,000 tails, and per 100/jin, the total amount that adds of feed is about 45kg (jetsam is that 30kg, buoyant are 15kg).
Embodiment 2
During the fry rearing, its step is following:
1) sterilization: after the dried pond processing of 1 mu pond, be exposed to the sun 5 days, divide heap to throw in to the pond 150kg quicklime, adding water to the depth of water is 20cm, obtains limewash, sterilizes 14 days with limewash immersion pond.
2) change water: the limewash pump drainage in the pond is clean, add water and wash repeatedly, until pH value＜8, water to be drained, underground water to the depth of water of filling after 80 order mesh screens filter is 80cm.
3) fertilising: 12kg is done soybean with water making beating back full pool spilling head, the full pond of the safe rich board omnivorousness fish meal of 12kg (bright and beautiful peak feed factory) is evenly thrown spread compost 10 days again.After 10 days, water body darkens, and microorganism breeds in a large number in the water body, contains more plankton, and especially the open-mouthed bait of spray seedling is biological.
4) adopting the aperture is that 80 purpose mesh screens carry out the Quan Chi diagonal angle to the pond and draw in the net once.In the pond, add the 12kg photosynthetic bacteria for the first time.
5) put seedling: vertical range pond face 40cm, 150cm place, horizontal range bank in the pond; Around 16 the 200W illuminating lamps that evenly distribute around the pond,, utilize the effect of night lights to lure that insect assembles the pond face into from the 2:00 AM illumination 6 hours of turning on light at 8 o'clock to second day night; The artificial adult pests such as water cockchafer, water dragonfly, kyllinga brevifolia of salvaging; Salvaged 10 days continuously, insect disappears basically, stops night illumination and salvaging.Splashed in the lump to net cage in 10kg dried soya bean making beating back and the safe rich board omnivorousness fish meal of 10kg (bright and beautiful peak feed factory) again, then 800,000 tail loach spray seedlings are thrown in to net cage.
6) grow seedlings: to spray seedling 30 days, during every photosynthetic bacteria that added 12kg/ mu pond at a distance from 7 days, obtain the summer flower fingerling; In nursery stage, the night illumination operation is carried out in the pond, concrete operations are following;
A, nursery stage the 1st～20 day carry out the night illumination operation to the pond;
B, nursery stage the 21st～30 day stop night illumination to the pond.
Cultivate after 30 days, obtain the summer flower fingerling, the body length of measuring the summer flower fingerling is 3～6cm, and its quantity is about 500,000 tails, per 800/jin.
In the fingerling breeding process, its step is following:
This process continues 30 days; In this process, night illumination was carried out 6 hours in the pond; And whenever added the 12kg photosynthetic bacteria at a distance from 7 days; At the omnivorousness fish meal that in the pond, adds summer flower fingerling gross weight 2% during the night illumination every night, added safe rich board omnivorousness fish meal (bright and beautiful peak feed factory)--jetsam in preceding 20 days, No. 0 (bright and beautiful peak feed factory)--the buoyant that added pool lice in back 10 days.The body length of culturing the loach after 30 days is 6～12cm, and its quantity is about 450,000 tails, and per 80/jin, the total amount that adds of feed is about 190kg (jetsam is that 126kg, buoyant are 64kg).
Embodiment 3
During the fry rearing, its step is following:
1) sterilization: 1 mu pond is done after the pond handles, be exposed to the sun 7 days, divide heap to throw in to the pond 125kg quicklime, adding water to the depth of water was 15cm, obtains limewash, with limewash soaking disinfection 10 days.
2) change water: the limewash pump drainage in the pond is clean, add water and wash repeatedly, until pH value＜8, water to be drained, new water to the depth of water of annotating is 70cm.
3) fertilising: 10kg is done soybean with water making beating back full pool spilling head, the full pond of the safe rich board omnivorousness fish meal of 10kg (bright and beautiful peak feed factory) is evenly thrown spread compost 8 days again.After 8 days, water body darkens, and microorganism breeds in a large number in the water body, contains more plankton, and especially the open-mouthed bait of spray seedling is biological.
4) add the 10kg photosynthetic bacteria to the pond.
5) put seedling: vertical range pond face 35cm, 150cm place, horizontal range bank in the pond; Around 12 the 150W illuminating lamps that evenly distribute around the pond,, utilize the effect of night lights to lure that insect assembles the pond face into from the 1:00 AM illumination 4 hours of turning on light at 9 o'clock to second day night; Artificial salvaging water cockchafer, water dragonfly, kyllinga brevifolia adult; Salvaged 7 days continuously, insect disappears basically, stops night illumination and salvaging.Again dried soya bean making beating of 8kg and 8kg omnivorousness fish meal are added in the lump to the pond, again the loach spray seedling of 600,000 tails is thrown in to the pond.
6) grow seedlings: to spray seedling 30 days, during every photosynthetic bacteria that added 10kg at a distance from 6 days, obtain the summer flower fingerling; In nursery stage, the night illumination operation is carried out in the pond, concrete operations are following;
A, nursery stage the 1st～20 day carry out the night illumination operation to the pond;
B, nursery stage the 21st～30 day stop night illumination to the pond.
Cultivate after 30 days, obtain the summer flower fingerling, the quantity of measuring and calculating summer flower fingerling is 340,000 tails, and its body length is 3～6cm, about 900/jin.
In the fingerling breeding process, its step is following:
This process continues 30 days; In this process, night illumination was carried out 5 hours in the pond; At the omnivorousness fish meal that in the pond, adds summer flower fingerling gross weight 1.5% during the night illumination every night; Added safe rich board omnivorousness fish meal (bright and beautiful peak feed factory)--jetsam in preceding 20 days, No. 0 (bright and beautiful peak feed factory)--the buoyant that added pool lice in back 10 days.The body length of culturing the loach after 30 days is 6～12cm, and its quantity is about 30.6 ten thousand tails, and per 90/jin, the total amount that adds of feed is about 85kg (jetsam is that 57kg, buoyant are 28kg).
Embodiment 4
During the fry rearing, its step is following:
1) sterilization: 1 mu pond is done after the pond handles, divide heap to throw in to the pond 100kg quicklime, adding water to the depth of water was 20cm, and quicklime and reaction obtain slaked lime and discharge great amount of heat, stir, and are limewash, with limewash soaking disinfection 7 days.
2) change water: the limewash pump drainage in the pond is clean, add water and wash repeatedly, until pH value＜8, water to be drained, new water to the depth of water of annotating is 80cm.
3) fertilising: 8kg is done soybean with water making beating back full pool spilling head, the full pond of the safe rich board omnivorousness fish meal of 12kg (bright and beautiful peak feed factory) is evenly thrown spread compost 7 days again.Behind the compost 7 days, water body darkens, and microorganism breeds in a large number in the water body, contains more plankton, and especially the open-mouthed bait of spray seedling is biological.
4) in the pond, add the 12kg photosynthetic bacteria for the first time.
5) put seedling: vertical range pond face 30cm, 150cm place, horizontal range bank in the pond; Around 16 the 100W illuminating lamps that evenly distribute around the pond,, utilize the effect of night lights to lure that insect assembles the pond face into from the 2:00 AM illumination 4 hours of turning on light at 10 o'clock to second day night; Artificial salvaging water cockchafer, water dragonfly, kyllinga brevifolia adult; Salvaged 5 days continuously, insect disappears basically, stops night illumination and salvaging.Again dried soya bean making beating of 5kg and 10kg omnivorousness fish meal are added in the lump to the pond, again the loach spray seedling of 1,000,000 tails is thrown in to the pond.
6) grow seedlings: to spray seedling 30 days, during every photosynthetic bacteria that added 12kg/ mu pond at a distance from 5 days, obtain the summer flower fingerling; In nursery stage, the night illumination operation is carried out in the pond, concrete operations are following;
A, nursery stage the 1st～20 day carry out above-mentioned night illumination to the pond;
B, nursery stage the 21st～30 day stop night illumination to the pond.
Cultivate after 30 days, obtain the summer flower fingerling, the quantity of measuring and calculating summer flower fingerling is 500,000 tails, and its body length is 3～6cm, about 1000/jin.
In the fingerling breeding process, its step is following:
This process continues 30 days, in this process, the night illumination operation is carried out in the pond.At the omnivorousness fish meal that in the pond, adds summer flower fingerling gross weight 2% during the night illumination every night, added safe rich board omnivorousness fish meal (bright and beautiful peak feed factory)--jetsam in preceding 20 days, No. 0 (bright and beautiful peak feed factory)--the buoyant that added pool lice in back 10 days.The body length of culturing the loach after 30 days is 6～12cm, and its quantity is 450,000 tails, and about 100/jin, the dosage of feed is approximately 150kg (jetsam is that 100kg, buoyant are 50kg).In the fingerling breeding process, in the time of the 10th day, micro organism quantity obviously reduces in the observation pond, topdresses once to the pond immediately, with the dried soya bean making beating of 12kg full pool spilling head, and throws and spreads the safe rich board omnivorousness fish meal (bright and beautiful peak feed factory) of 12kg.
Claims (5)
1. the night lights breeding method of a loach comprises the fry rearing process, it is characterized in that: this process may further comprise the steps:
1) sterilization: the pond is done after the pond handles, throw in the pond in the ratio in 100～150kg/ mu pond and spread quicklime, adding water to the depth of water is 10～20cm, sterilizes 7～14 days;
2) change water: the water pump drainage in the pond is clean, the new water of annotating;
3) fertilising: in the pond behind the Xiang Huanshui, according to the ratio in the dried soya bean of 8～12kg/mu pond, with dried soya bean making beating back full pool spilling head, again according to the ratio in 8～12kg omnivorousness fish meal/mu pond, full pond is evenly thrown and is spread omnivorousness fish meal, compost 7～10 days;
4) add photosynthetic bacteria:, throw in the pond and spread photosynthetic bacteria according to the ratio in 8～12kg/ mu pond;
5) put seedling: the pond face is carried out 5～10 days night illumination operation; Salvage insect, with the ratio in 5～10kg/ mu pond, with dried soya bean making beating back full pool spilling head; Again with the ratio in 5～10kg/ mu pond; Full pond is evenly thrown and is spread the omnivorousness fish meal, according to the ratio in 50～1,000,000 tail water flower seedling/mu ponds, the spray seedling is thrown in to the pond at last;
6) grow seedlings:, obtain the summer flower fingerling to spray seedling 30 days; In nursery stage, whenever added photosynthetic bacteria in the ratio in 8～12kg/ mu pond to the pond at a distance from 5～7 days, and between nursery stage the 1st～20 day, the night illumination operation is carried out in the pond.
2. the night lights breeding method of loach according to claim 1; It is characterized in that: also comprise the fingerling breeding process; This process continues 30 days; In this process, the night illumination operation is carried out in the pond, at the omnivorousness fish meal that in the pond, adds summer flower fingerling gross weight 1%～2% during the night illumination every night.
3. use the night lights breeding method that requires 2 described loach according to right, it is characterized in that: in the fingerling breeding process, whenever added one time photosynthetic bacteria at a distance from 5～7 days, each dosage is 8～12kg/ mu pond.
According to right with requiring the night lights breeding method of 1～3 described loach, it is characterized in that: said night illumination is to utilize illuminating lamp to the pond illumination of turning on light after the darkness; Described illuminating lamp is installed in the top, pond apart from the water surface 30～40cm place, and 8～16 illuminating lamps are installed in every mu of pond, and illuminating lamp is selected the incandescent lamp of 100～200W for use.
5. the night lights breeding method of loach according to claim 4, it is characterized in that: described night illumination duration is 3～6 hours.
Priority Applications (1)
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| CN103548731A (en) * | 2013-10-30 | 2014-02-05 | 贵州秋兴水产有限公司 | Loach fry breeding method |
| CN103918594A (en) * | 2014-05-07 | 2014-07-16 | 娄志 | Loach breeding method |
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| CN103548731A (en) * | 2013-10-30 | 2014-02-05 | 贵州秋兴水产有限公司 | Loach fry breeding method |
| CN103918594A (en) * | 2014-05-07 | 2014-07-16 | 娄志 | Loach breeding method |
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Application publication date: 20121205 |