CN105409836A - High-survival-rate cultivation method of freshwater crayfish - Google Patents
High-survival-rate cultivation method of freshwater crayfish Download PDFInfo
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- CN105409836A CN105409836A CN201510780774.5A CN201510780774A CN105409836A CN 105409836 A CN105409836 A CN 105409836A CN 201510780774 A CN201510780774 A CN 201510780774A CN 105409836 A CN105409836 A CN 105409836A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Abstract
The invention discloses a high-survival-rate cultivation method of freshwater crayfish. The cultivation method includes the steps of firstly, preparing a cultivation pond; secondly, processing before cultivation; thirdly, culturing water; fourthly, planting aquatic plants; fifthly, stocking crayfish fries; sixthly, performing daily management. The cultivation method has the advantages that the cultivation pond is elaborately designed and processed in advance, the morbidity of the crayfish is lowered from the source, the designed mud ridges, cobbles and tree roots conform to the physiological habits and needs of the crayfish, the growth of the crayfish at different time periods can be promoted, daily management such as scientific feeding and water quality adjusting is performed, the nutrition requirements of the crayfish is guaranteed, a good ecological environment is built, the survival rate of the crayfish is increased greatly, no chemical reagents and hormones are used, and the quality and nutritional value of the crayfish are guaranteed.
Description
Technical field
The invention belongs to cultivation field, be specifically related to a kind of freshwater crayfish high-servival rate cultural method.
Background technology
Freshwater crayfish, also known as lead and cadnium, formal name used at school Procambius clarkii, originates in the U.S., the twentieth century twenty or thirty age reaches Nanjing one band of China, because its delicious meat is more and more subject to the favor of people, there are wide market prospects, so a lot of people starts artificial feeding cray now, but the breeding way of freshwater crayfish is extensive cultivation substantially at present, be bred as by natural bait completely, and daily management method is not good at, cause the cray poor quality, the lethality that cultivate out high, yield poorly.
Summary of the invention
In order to solve the problem, the present invention has aimed to provide a kind of freshwater crayfish high-servival rate cultural method, and not only survival rate is high for cray that this method is educated, and quality better, is of high nutritive value.
The present invention is achieved through the following technical solutions:
A kind of freshwater crayfish high-servival rate cultural method, comprises the steps:
(1) cultivating pool prepares: selection area is the culturing pool of 2 ~ 5 mu, Chi Shen is 1.5 ~ 1.8m, the pool wall gradient is 55 ~ 65 °, the ridge, pond is wide is 1.5 ~ 2m, the ridge, pond surrounding rational height be 0.5 ~ 0.8m, the anti-of inner wall smooth escape plate, pond central authorities arrange cross or the groined type mud ridge, and mud ridge width is 1.0 ~ 1.2m, be respectively equipped with water inlet and delivery port at culturing pool two ends, described water inlet and water outlet are provided with to be prevented escaping net;
(2) pre-treatment is cultivated: remove mud at the bottom of culturing pool, and spray lime disinfection, after being exposed to the sun 3 days to culturing pool, apply the farmers''s excrement become thoroughly decomposed with the amount of 250 ~ 400 kilograms every mu, finally at the bottom of pond, put into cobblestone, pond surrounding puts into tree root and thick bamboo tube simultaneously;
(3) train water: water filling in culturing pool, and tan by the sun one week under field conditions (factors);
(4) planting aquatic plants: plant pasture and water in culturing pool, its area coverage is 60 ~ 75% of pond;
(5) shrimp seedling is put in a suitable place to breed: after cray seedling good for seed selection being put in saline solution the 3 ~ 5min that sterilizes, put in a suitable place to breed with the amount of every mu 1.5 ~ 2.5 ten thousand tails;
(6) daily management: every day feeding twice, throw in 20 ~ 30% of bait on the same day morning, throw in surplus at dusk, every day, injected volume was 20 ~ 40% of current cray body weight, a water quality adjustment is carried out every 15 days, in addition, control water transparence at more than 30cm, keep the oxygen content in culturing pool to be 5.5 ~ 6.5mg/L.
Further, step (1) described mud ridge height exceeds the water surface 8 ~ 10cm, and length is 3/4 ~ 4/5 of respective side pond length, and the Bu Yuchi ridge, two ends is connected.
Further, the described quicklime consumption of step (2) is 70 ~ 90 kilograms every mu, and described farmers' excrement is at least one of pig manure, sheep excrement, cow dung.
Further, the described Chi Shui of step (3) injects that the degree of depth is 0.8 ~ 1.5m, water temperature is 23 ~ 27 DEG C.
Further, step (4) described pasture and water by eel grass, hydrilla verticillata, Eichhornia crassipes and water lettuce at least two kinds form.
Further, the described saline solution concentration of step (5) is 3 ~ 5%.
Further, the protein content of step (6) described bait is 25 ~ 30%, and fat content is 8 ~ 10%, and carbohydrate content is 20 ~ 25%, and content of cellulose is 15 ~ 20%.
Further, lime and extracts of Chinese herbal medicine are sprinkled into pond respectively, every cubic metre of pond limes 1kg, extracts of Chinese herbal medicine 0.2kg, and controlling water PH value is 7 ~ 9, then is mixed into photosynthetic bacteria with the amount that every cube of Chi Shui inoculates 2 ~ 3g; Described extracts of Chinese herbal medicine is by the material of following weight portion: under the water cooking liquid of 5 ~ 8 parts of barks of eucommia, 6 ~ 10 parts of chinaberrys, 3 ~ 5 portions of peppermints, 2 ~ 4 parts of rhizome of chuanxiongs, 3 ~ 5 parts of Radixs Astragali, 2 ~ 4 parts of tubers of stemona is concentrated into normal temperature, relative density 1.21-1.25 forms.
The present invention has following beneficial effect: the present invention has carried out meticulous design and process to cultivating pool in advance, the incidence of disease of cray is reduced from source, the mud ridge simultaneously designed, cobblestone, the physiologic habit of the compound crays such as tree root and demand, the growth of its different times can be promoted, in conjunction with daily management operations such as the feeding method of science and water quality adjustment, ensure that the nutritional need of cray, establish good ecotope, greatly improve its survival rate, in addition this method does not use any chemical agent and hormone, ensure that quality and the nutritive value of cray.
Embodiment
Embodiment 1
A kind of freshwater crayfish high-servival rate cultural method, comprises the steps:
(1) cultivating pool prepares: selection area is the culturing pool of 3 mu, Chi Shen is 1.8m, the pool wall gradient is 55 ~ 60 °, the ridge, pond is wide is 1.5m, the ridge, pond surrounding rational height be 0.8m, the anti-of inner wall smooth escape plate, pond central authorities arrange the cross mud ridge, and mud ridge width is 1.2m, be respectively equipped with water inlet and delivery port at culturing pool two ends, described water inlet and water outlet are provided with to be prevented escaping net;
(2) pre-treatment is cultivated: remove mud at the bottom of culturing pool, and spray lime disinfection, after culturing pool being exposed to the sun 3 days simultaneously, the farmers''s excrement become thoroughly decomposed is applied with the amount of 250 kilograms every mu, finally at the bottom of pond, put into cobblestone, cobblestone thickness is 2-3cm, and pond surrounding puts into tree root and thick bamboo tube, tree root and thick bamboo tube intersect to be placed, and is spaced apart 50-80cm;
(3) train water: water filling in culturing pool, and tan by the sun one week under field conditions (factors);
(4) planting aquatic plants: plant pasture and water in culturing pool, its area coverage is 65% of pond;
(5) put shrimp seedling in a suitable place to breed: after cray seedling good for seed selection is put in saline solution the 5min that sterilizes, saline solution mass fraction is 4-8%, be best with 5%, put in a suitable place to breed with the amount of every mu of 20,000 tails;
(6) daily management: every day feeding twice, throw in 30% of bait on the same day morning, throw in surplus at dusk, every day, injected volume was 25% of current cray body weight, a water quality adjustment is carried out every 15 days, in addition, control water transparence at more than 30cm, keep the oxygen content in culturing pool to be 6.0 ~ 6.5mg/L.
Further, step (1) described mud ridge height exceeds water surface 8cm, and length is 4/5 of respective side pond length, and the Bu Yuchi ridge, two ends is connected.
Further, the described quicklime consumption of step (2) is 90 kilograms every mu, and described farmers' excrement is pig manure and sheep excrement.
Further, the described Chi Shui of step (3) injects that the degree of depth is 1.2m, water temperature is 24 ~ 27 DEG C.
Further, step (4) described pasture and water are made up of eel grass, hydrilla verticillata, Eichhornia crassipes.
Further, the described saline solution concentration of step (5) is 3%.
Further, the protein content of step (6) described bait is 25 ~ 30%, and fat content is 8 ~ 10%, and carbohydrate content is 20 ~ 25%, and content of cellulose is 15 ~ 20%.
Further, lime and extracts of Chinese herbal medicine are sprinkled into pond respectively, every cubic metre of pond limes 1kg, extracts of Chinese herbal medicine 0.2kg, and controlling water PH value is 7 ~ 9, then is mixed into photosynthetic bacteria with the amount that every cube of Chi Shui inoculates 2 ~ 3g; Described extracts of Chinese herbal medicine is by the material of following weight portion: under the water cooking liquid of 5 ~ 8 parts of barks of eucommia, 6 ~ 10 parts of chinaberrys, 3 ~ 5 portions of peppermints, 2 ~ 4 parts of rhizome of chuanxiongs, 3 ~ 5 parts of Radixs Astragali, 2 ~ 4 parts of tubers of stemona is concentrated into normal temperature, relative density 1.21-1.25 forms.
Embodiment 2
A kind of freshwater crayfish high-servival rate cultural method, comprises the steps:
(1) cultivating pool prepares: selection area is the culturing pool of 3 mu, Chi Shen is 1.5m, the pool wall gradient is 60 ~ 65 °, the ridge, pond is wide is 2m, the ridge, pond surrounding rational height be 0.6m, the anti-of inner wall smooth escape plate, pond central authorities arrange the groined type mud ridge, and mud ridge width is 1.2m, be respectively equipped with water inlet and delivery port at culturing pool two ends, described water inlet and water outlet are provided with to be prevented escaping net;
(2) pre-treatment is cultivated: remove mud at the bottom of culturing pool, and spray lime disinfection, after being exposed to the sun 3 days to culturing pool, apply the farmers''s excrement become thoroughly decomposed with the amount of 300 kilograms every mu, finally at the bottom of pond, put into cobblestone, pond surrounding puts into tree root and thick bamboo tube simultaneously;
(3) train water: water filling in culturing pool, and tan by the sun one week under field conditions (factors);
(4) planting aquatic plants: plant pasture and water in culturing pool, its area coverage is 75% of pond;
(5) shrimp seedling is put in a suitable place to breed: after cray seedling good for seed selection is put in saline solution the 3min that sterilizes, put in a suitable place to breed with the amount of every mu of 20,000 tails;
(6) daily management: every day feeding twice, throw in 25% of bait on the same day morning, throw in surplus at dusk, every day, injected volume was 40% of current cray body weight, a water quality adjustment is carried out every 15 days, in addition, control water transparence at more than 35cm, keep the oxygen content in culturing pool to be 5.5 ~ 6.5mg/L.
Further, step (1) described mud ridge height exceeds water surface 10cm, and length is 3/4 of respective side pond length, and the Bu Yuchi ridge, two ends is connected.
Further, the described quicklime consumption of step (2) is 80 kilograms every mu, and described farmers' excrement is pig manure, sheep excrement and cow dung.
Further, the described Chi Shui of step (3) injects that the degree of depth is 1.1m, water temperature is 25 ~ 27 DEG C.
Further, step (4) described pasture and water are made up of eel grass, Eichhornia crassipes and water lettuce.
Further, the described saline solution concentration of step (5) is 5%.
Further, the protein content of step (6) described bait is 25 ~ 30%, and fat content is 8 ~ 10%, and carbohydrate content is 20 ~ 25%, and content of cellulose is 15 ~ 20%.
Further, lime and extracts of Chinese herbal medicine are sprinkled into pond respectively, every cubic metre of pond limes 1kg, extracts of Chinese herbal medicine 0.2kg, and controlling water PH value is 7 ~ 9, then is mixed into photosynthetic bacteria with the amount that every cube of Chi Shui inoculates 2 ~ 3g; Described extracts of Chinese herbal medicine is by the material of following weight portion: under the water cooking liquid of 5 ~ 8 parts of barks of eucommia, 6 ~ 10 parts of chinaberrys, 3 ~ 5 portions of peppermints, 2 ~ 4 parts of rhizome of chuanxiongs, 3 ~ 5 parts of Radixs Astragali, 2 ~ 4 parts of tubers of stemona is concentrated into normal temperature, relative density 1.21-1.25 forms.
In order to contrast effect of the present invention, elitely select three pieces of positions and close on, area is the culturing pool of 3 mu, the amount of all throwing in 20,000 tails with every mu puts into cultivation, wherein two cultivate by mode described in embodiment 1 and 2, last culturing pool common mode cultivates as a control group, and after feeding 80 days, its comparison of test results data are as follows:
| Embodiment 1 | Embodiment 2 | Control group | |
| Test number of days (my god) | 80 | 80 | 80 |
| Cultivation sum (ten thousand tails) | 6 | 6 | 6 |
| Initial counterpoise (g/ tail) | 6.5 | 6.6 | 6.5 |
| Terminate counterpoise (g/ tail) | 32.6 | 33.4 | 28.7 |
| Survival rate (%) | 93.6 | 93.8 | 86.5 |
Table 1.
Claims (8)
1. a freshwater crayfish high-servival rate cultural method, is characterized in that, comprises the steps:
(1) cultivating pool prepares: selection area is the culturing pool of 2 ~ 5 mu, Chi Shen is 1.5 ~ 1.8m, the pool wall gradient is 55 ~ 65 °, the ridge, pond is wide is 1.5 ~ 2m, the ridge, pond surrounding rational height be 0.5 ~ 0.8m, the anti-of inner wall smooth escape plate, pond central authorities arrange cross or the groined type mud ridge, and mud ridge width is 1.0 ~ 1.2m, be respectively equipped with water inlet and delivery port at culturing pool two ends, described water inlet and water outlet are provided with to be prevented escaping net;
(2) pre-treatment is cultivated: remove mud at the bottom of culturing pool, and spill lime disinfection, after being exposed to the sun 3 days to culturing pool, apply the farmers''s excrement become thoroughly decomposed with the amount of 250 ~ 400 kilograms every mu, finally at the bottom of pond, put into cobblestone, pond surrounding puts into tree root and thick bamboo tube simultaneously;
(3) train water: water filling in culturing pool, and tan by the sun one week under field conditions (factors);
(4) planting aquatic plants: plant pasture and water in culturing pool, its area coverage is 60 ~ 75% of pond;
(5) shrimp seedling is put in a suitable place to breed: after cray seedling good for seed selection being put in saline solution the 3 ~ 5min that sterilizes, put in a suitable place to breed with the amount of every mu 1.5 ~ 2.5 ten thousand tails;
(6) daily management: every day feeding twice, throw in 20 ~ 30% of bait on the same day morning, throw in surplus at dusk, every day, injected volume was 20 ~ 40% of cray TBW when throwing in, a water quality adjustment is carried out every 15 days, in addition, control water transparence at more than 30cm, keep the oxygen content in culturing pool to be 5.5 ~ 6.5mg/L.
2. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, is characterized in that, step (1) described mud ridge height exceeds the water surface 8 ~ 10cm, and length is 3/4 ~ 4/5 of respective side pond length, and the Bu Yuchi ridge, two ends is connected.
3. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, is characterized in that, the described quicklime consumption of step (2) is 70 ~ 90 kilograms every mu, and described farmers' excrement is at least one of pig manure, sheep excrement, cow dung.
4. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, is characterized in that, step (3) the described Chi Shui injection degree of depth is 0.8 ~ 1.5m, water temperature is 23 ~ 27 DEG C.
5. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, is characterized in that, step (4) described pasture and water by eel grass, hydrilla verticillata, Eichhornia crassipes and water lettuce at least two kinds form.
6. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, is characterized in that, the described saline solution concentration of step (5) is 3 ~ 5%.
7. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, it is characterized in that, the protein content of step (6) described bait is 25 ~ 30%, and fat content is 8 ~ 10%, carbohydrate content is 20 ~ 25%, and content of cellulose is 15 ~ 20%.
8. a kind of freshwater crayfish high-servival rate cultural method according to claim 1, it is characterized in that, step (6) described water quality adjustment is operating as: lime and extracts of Chinese herbal medicine are sprinkled into pond respectively, every cubic metre of pond limes 1kg, extracts of Chinese herbal medicine 0.2kg, controlling water PH value is 7 ~ 9, then is mixed into photosynthetic bacteria with the amount of every cube of Chi Shui inoculation 2 ~ 3g; Described extracts of Chinese herbal medicine is by the material of following weight portion: under the water cooking liquid of 5 ~ 8 parts of barks of eucommia, 6 ~ 10 parts of chinaberrys, 3 ~ 5 portions of peppermints, 2 ~ 4 parts of rhizome of chuanxiongs, 3 ~ 5 parts of Radixs Astragali, 2 ~ 4 parts of tubers of stemona is concentrated into normal temperature, relative density 1.21-1.25 forms.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850820A (en) * | 2016-05-31 | 2016-08-17 | 铜仁市万山区恒利达种养殖有限公司 | Efficient lobster farming method |
| CN105850819A (en) * | 2016-05-31 | 2016-08-17 | 铜仁市万山区恒利达种养殖有限公司 | Farming method for increasing lobster yield |
| CN106106274A (en) * | 2016-06-27 | 2016-11-16 | 苏州市相城区阳澄湖镇剑美水产生态养殖专业合作社 | A kind of pollution-free breeding method of Lobster |
| CN106135095A (en) * | 2016-06-30 | 2016-11-23 | 淮南市农康生态农业有限公司 | Cultural method based on the cray of Natural Water system |
| CN106719197A (en) * | 2016-12-09 | 2017-05-31 | 姚旭 | A kind of cultural method of cray |
| CN106888999A (en) * | 2017-02-28 | 2017-06-27 | 铜仁市凯盛水产养殖有限公司 | A kind of disease prevention method of cray |
| CN106954572A (en) * | 2017-03-10 | 2017-07-18 | 铜仁市凯盛水产养殖有限公司 | A kind of cultural method of cray |
| CN107047408A (en) * | 2017-04-10 | 2017-08-18 | 刘忠宁 | A kind of cultural method of freshwater crayfish |
| CN107279010A (en) * | 2017-08-17 | 2017-10-24 | 钟春明 | A kind of plant of cray |
| CN107711648A (en) * | 2017-11-22 | 2018-02-23 | 五河县茂源水蛭生态养殖专业合作社 | A kind of cultural method of fresh water prawn |
| CN107897078A (en) * | 2017-12-19 | 2018-04-13 | 颍上县腾飞生态农业水产专业合作社联合社 | A kind of aquaculture method of cray |
| CN112674004A (en) * | 2021-01-28 | 2021-04-20 | 武汉正大水产有限公司 | High-survival-rate crayfish breeding method in high-temperature season |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105850819A (en) * | 2016-05-31 | 2016-08-17 | 铜仁市万山区恒利达种养殖有限公司 | Farming method for increasing lobster yield |
| CN105850820A (en) * | 2016-05-31 | 2016-08-17 | 铜仁市万山区恒利达种养殖有限公司 | Efficient lobster farming method |
| CN106106274A (en) * | 2016-06-27 | 2016-11-16 | 苏州市相城区阳澄湖镇剑美水产生态养殖专业合作社 | A kind of pollution-free breeding method of Lobster |
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| CN106719197A (en) * | 2016-12-09 | 2017-05-31 | 姚旭 | A kind of cultural method of cray |
| CN106888999A (en) * | 2017-02-28 | 2017-06-27 | 铜仁市凯盛水产养殖有限公司 | A kind of disease prevention method of cray |
| CN106954572A (en) * | 2017-03-10 | 2017-07-18 | 铜仁市凯盛水产养殖有限公司 | A kind of cultural method of cray |
| CN107047408A (en) * | 2017-04-10 | 2017-08-18 | 刘忠宁 | A kind of cultural method of freshwater crayfish |
| CN107279010A (en) * | 2017-08-17 | 2017-10-24 | 钟春明 | A kind of plant of cray |
| CN107711648A (en) * | 2017-11-22 | 2018-02-23 | 五河县茂源水蛭生态养殖专业合作社 | A kind of cultural method of fresh water prawn |
| CN107897078A (en) * | 2017-12-19 | 2018-04-13 | 颍上县腾飞生态农业水产专业合作社联合社 | A kind of aquaculture method of cray |
| CN112674004A (en) * | 2021-01-28 | 2021-04-20 | 武汉正大水产有限公司 | High-survival-rate crayfish breeding method in high-temperature season |
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