CN103493788B - Leech high-density stereoscopic cultivation method - Google Patents
Leech high-density stereoscopic cultivation method Download PDFInfo
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- CN103493788B CN103493788B CN201310470392.3A CN201310470392A CN103493788B CN 103493788 B CN103493788 B CN 103493788B CN 201310470392 A CN201310470392 A CN 201310470392A CN 103493788 B CN103493788 B CN 103493788B
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Abstract
The invention discloses a kind of leech high-density stereoscopic cultivation method, comprise the following steps: the setting of fish culture net cage, the setting of cultivation matrix, seedling input, feedstuff feeding, water quality management, net cage overcoat are supported, cultural method of the present invention considerably increases hirudiniculture density and survival rate, improve output, existing hirudiniculture technology, per mu yield leech dry product is at about 40kg, adopt cultural method of the present invention, the per mu yield of leech dry product can reach about 50kg, output about improves 25%, feed (Pomacea canaliculata and river snail) and leech are overlapped and support by this method, improve the availability of land resources, simultaneously the duckweed of water surface planting or weter hyacinth again can for needed for Pomacea canaliculatas and river snail growth, kill two birds with one stone, be beneficial to the availability improving feed, save production cost, improve economic benefit.
Description
Technical field
The invention belongs to hirudiniculture technical field, be specifically related to a kind of method of high-density stereoscopic cultivation leech.
Background technology
Leech, popular name leech, it is the general designation of Annelida Hirudinea on animal classification, growth and breeding in the freshwater of inland, it is the traditional medicinal aquatic animal of special type of China, its dried product is concocted the rear traditional Chinese medical science and is used as medicine, there is treatment apoplexy, hypertension, the clear stasis of blood, amenorrhoea, the effects such as traumatic injury, especially for the Chinese patent drug of preparation treatment cardiovascular and cerebrovascular disease, in recent years, that studies leech along with medical science deepens continuously and develops, medical value obtains embodiment gradually, leech has become international one of well sold and in short supply traditional Chinese medicine, also have broad application prospects in modern medicine and pharmacology.But the living environment of leech is subject to severe contamination in recent years, people are predatory again to be caught, and cause wild resource day by day exhausted, imbalance between supply and demand is very outstanding, and domestic and international leech market demand increases gradually, and artificial feeding leech is imperative.Leech strong adaptability, starvation tolerance is strong, and have extremely strong premunition, artificial feeding leech does not limit by regional condition, can pond is supported, hole is supported, cylinder is supported, bucket is foster, and it has features such as not accounting for labour, feed cost are low, small investment, instant effect.
At present, hirudiniculture mainly contains three kinds of modes: (1) rice field extensive style cultivates; (2) cage culture; (3) cement pit cultivation.There is following problem in paddy field aquaculture pattern: on the one hand, and the low and leech of feed conversion rate is gathered extremely difficult; On the other hand, the birth and old age, sickness and death situation of leech cannot be grasped.Current cage culture and cement pit cultivation all cannot solve the dispersion problem concerning life of leech.
Summary of the invention
The object of this invention is to provide a kind of method of high-density stereoscopic cultivation leech, considerably increase hirudiniculture density and survival rate, improve output.
Technical scheme of the present invention: a kind of leech high-density stereoscopic cultivation method, comprises the following steps:
The setting of a, fish culture net cage: fish culture net cage is set in culturing pool, net cage is wide 2 ~ 4 meters, high 1.2 ~ 1.8 meters, net cage material selection 40 ~ 60 object screen cloth, lays one deck bamboo basketry sheet at net cage bottom even;
The setting of b, cultivation matrix: water filling in culturing pool, the water surface planting duckweed inside and outside net cage or weter hyacinth, cultivated area accounts for 2/3 ~ 3/4 of cultured area;
C, seedling are thrown in: choose the leech seedling that body weight is 0.3 ~ 0.5 gram/bar, put in a suitable place to breed by the density of 200 ~ 500/square metre;
D, feedstuff feeding: seedling is thrown in and starts feeding rear next day, and feedstuff feeding amount is 25 ~ 35% of leech gross weight, when the feed in net cage remains 20 ~ 30%, carries out the feedstuff feeding of next round;
E, water quality management: in water, sprayed bacterium liquid every 5 ~ 7 days, and clear up the foreign material in water in time;
F, net cage overcoat are supported: support Pomacea canaliculata and/or river snail at fish culture net cage overcoat, and the duckweed of water surface planting or weter hyacinth can for Pomacea canaliculata and/or river snail growths.
Further, in described step a, net cage upper end arranges the interior Origuchi at a right angle with vertical plane, Origuchi length 0.15 ~ 0.2 meter.
Further, in described step b, the culturing pool depth of water is 0.7 ~ 1 meter.
Further, in described step b, water temperature controls at 20 ~ 28 DEG C, pH value 6.5 ~ 7.5.
Further, in described step e, bacterium liquid selects EM bacterium liquid.
What the EM bacterium liquid that the present invention selects adopted Japanese EM company and China to develop cooperatively belong to more than 80 for 5 kind 10 by photosynthetic bacteria, lactobacillus, yeast flora, actinomycete group, thread flora etc. plants the probio stoste that microorganism forms.
Beneficial effect of the present invention:
(1) cultural method of the present invention considerably increases hirudiniculture density and survival rate, improves output, existing hirudiniculture technology, per mu yield leech dry product is at about 40kg, adopt cultural method of the present invention, the per mu yield of leech dry product can reach about 50kg, and output about improves 25%.
(2) feed (Pomacea canaliculata and river snail) and leech overlaps and support by this method, improve the availability of land resources, needed for the duckweed of water surface planting or weter hyacinth can grow for Pomacea canaliculata and river snail again simultaneously, kill two birds with one stone.
(3) this method high-density breeding is also conducive to the availability improving feed, has saved production cost, has improve economic benefit.
Embodiment
For making those skilled in the art understand processing step of the present invention and technique effect in detail, introduce application of the present invention and technique effect further with concrete production instance below.
Embodiment 1
A kind of leech high-density stereoscopic cultivation method, comprises the following steps:
The setting of a, fish culture net cage: fish culture net cage is set in culturing pool, net cage is wide 2 meters, high 1.2 meters, net cage material selection 40 object screen cloth, net cage upper end arranges the interior Origuchi at a right angle with vertical plane, and Origuchi length 0.15 meter, lays one deck bamboo basketry sheet at net cage bottom even;
The setting of b, cultivation matrix: water filling in culturing pool, the depth of water is 0.7 meter, and water temperature controls at 20 DEG C, pH value 6.5, the water surface planting duckweed inside and outside net cage or weter hyacinth, and cultivated area accounts for 2/3 of cultured area;
C, seedling are thrown in: choose the leech seedling that body weight is 0.3 gram/bar, put in a suitable place to breed by the density of 500/square metre;
D, feedstuff feeding: seedling is thrown in and starts feeding rear next day, and feedstuff feeding amount is 25% of leech gross weight, when the feed in net cage remains 20%, carries out the feedstuff feeding of next round;
E, water quality management: in water, sprayed EM bacterium liquid every 5 days, and clear up the foreign material in water in time;
F, net cage overcoat are supported: support Pomacea canaliculata and/or river snail at fish culture net cage overcoat, and the duckweed of water surface planting or weter hyacinth can for Pomacea canaliculata and/or river snail growths.
Embodiment 2
A kind of leech high-density stereoscopic cultivation method, comprises the following steps:
The setting of a, fish culture net cage: fish culture net cage is set in culturing pool, net cage is wide 3 meters, high 1.6 meters, net cage material selection 50 object screen cloth, net cage upper end arranges the interior Origuchi at a right angle with vertical plane, and Origuchi length 0.18 meter, lays one deck bamboo basketry sheet at net cage bottom even;
The setting of b, cultivation matrix: water filling in culturing pool, the depth of water is 0.8 meter, and water temperature controls at 25 DEG C, pH value 7, the water surface planting duckweed inside and outside net cage or weter hyacinth, and cultivated area accounts for 2/3 of cultured area;
C, seedling are thrown in: choose the leech seedling that body weight is 0.4 gram/bar, put in a suitable place to breed by the density of 300/square metre;
D, feedstuff feeding: seedling is thrown in and starts feeding rear next day, and feedstuff feeding amount is 30% of leech gross weight, when the feed in net cage remains 25%, carries out the feedstuff feeding of next round;
E, water quality management: in water, sprayed EM bacterium liquid every 6 days, and clear up the foreign material in water in time;
F, net cage overcoat are supported: support Pomacea canaliculata and/or river snail at fish culture net cage overcoat, and the duckweed of water surface planting or weter hyacinth can for Pomacea canaliculata and/or river snail growths.
Embodiment 3
A kind of leech high-density stereoscopic cultivation method, comprises the following steps:
The setting of a, fish culture net cage: fish culture net cage is set in culturing pool, net cage is wide 4 meters, high 1.8 meters, net cage material selection 60 object screen cloth, net cage upper end arranges the interior Origuchi at a right angle with vertical plane, and Origuchi length 0.2 meter, lays one deck bamboo basketry sheet at net cage bottom even;
The setting of b, cultivation matrix: water filling in culturing pool, the depth of water is 1 meter, and water temperature controls at 28 DEG C, pH value 7.5, the water surface planting duckweed inside and outside net cage or weter hyacinth, and cultivated area accounts for 3/4 of cultured area;
C, seedling are thrown in: choose the leech seedling that body weight is 0.5 gram/bar, put in a suitable place to breed by the density of 200/square metre;
D, feedstuff feeding: seedling is thrown in and starts feeding rear next day, and feedstuff feeding amount is 35% of leech gross weight, when the feed in net cage remains 30%, carries out the feedstuff feeding of next round;
E, water quality management: in water, sprayed EM bacterium liquid every 7 days, and clear up the foreign material in water in time;
F, net cage overcoat are supported: support Pomacea canaliculata and/or river snail at fish culture net cage overcoat, and the duckweed of water surface planting or weter hyacinth can for Pomacea canaliculata and/or river snail growths.
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, embodiment and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (1)
1. a leech high-density stereoscopic cultivation method, is characterized in that, comprises the following steps:
The setting of a, fish culture net cage: fish culture net cage is set in culturing pool, net cage is wide 2 ~ 4 meters, high 1.2 ~ 1.8 meters, net cage material selection 40 ~ 60 object screen cloth, lays one deck bamboo basketry sheet at net cage bottom even;
The setting of b, cultivation matrix: water filling in culturing pool, the water surface planting duckweed inside and outside net cage or weter hyacinth, cultivated area accounts for 2/3 ~ 3/4 of cultured area;
C, seedling are thrown in: choose the leech seedling that body weight is 0.3 ~ 0.5 gram/bar, put in a suitable place to breed by the density of 200 ~ 500/square metre;
D, feedstuff feeding: seedling is thrown in and starts feeding rear next day, and feedstuff feeding amount is 25 ~ 35% of leech gross weight, when the feed in net cage remains 20 ~ 30%, carries out the feedstuff feeding of next round;
E, water quality management: in water, sprayed bacterium liquid every 5 ~ 7 days, and clear up the foreign material in water in time;
F, net cage overcoat are supported: support Pomacea canaliculata and/or river snail at fish culture net cage overcoat, and the duckweed of water surface planting or weter hyacinth can for Pomacea canaliculata and/or river snail growths;
In described step a, net cage upper end arranges the interior Origuchi at a right angle with vertical plane, Origuchi length 0.15 ~ 0.2 meter;
In described step b, the culturing pool depth of water is 0.7 ~ 1 meter;
In described step b, water temperature controls at 20 ~ 28 DEG C, pH value 6.5 ~ 7.5;
In described step e, bacterium liquid selects EM bacterium liquid.
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Cited By (1)
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| CN107960351A (en) * | 2017-11-06 | 2018-04-27 | 合肥康青源养殖有限公司 | Leech high yield artificial cultivating method |
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| CN105123624A (en) * | 2015-07-20 | 2015-12-09 | 闽南师范大学 | Method for controlling pomacea canaliculata by utilizing medicinal whitmania pigra |
| CN105145425B (en) * | 2015-08-06 | 2020-01-07 | 江苏农牧科技职业学院 | Whitmania pigra and rhodeus pang polyculture technology |
| CN105211005A (en) * | 2015-10-13 | 2016-01-06 | 江苏农牧科技职业学院 | A kind of ecological stereoscopic culture method of leech seed |
| CN105284746A (en) * | 2015-11-27 | 2016-02-03 | 重庆市中药研究院 | High-efficiency Hirudo nipponia intercropping method |
| CN105746438A (en) * | 2016-03-02 | 2016-07-13 | 南京农业大学 | Indoor high-density leech breeding method |
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