CN105010229A - Chinemys reevesii culture method - Google Patents

Abstract

The invention discloses a method for cultivating black turtles, which comprises the following steps: (1) breeding turtle seedlings, (2) collecting, hatching and selecting turtle seedlings, (3) selecting ponds, (4) stocking young turtles at the stage, (5) Stocking of young tortoises, (6) stocking of adult tortoises and (7) breeding environment and related management, by selecting excellent juvenile tortoises and artificially feeding them to a certain weight, transfer the excellent male tortoises to a simulated natural environment The breeding process is managed according to the corresponding requirements; by adopting this method, most of the male tortoises can grow into black turtles, which solves the problem that the male leatherback turtles grow into black turtles in the existing breeding methods. The evolution process of male tortoises is greatly shortened, and most of them will grow into black tortoises in only 4 years, which is much faster than the growth cycle of wild black tortoises of 6 to 10 years, and the price of ordinary tortoises is 60 to 100 yuan/ Jin, while the price of black tortoises is as high as 800-1000 yuan/jin, and the economic value provided is far more than that of ordinary farmed tortoises.

Description

A kind of culture method of ink turtle

technical field

The invention relates to a method for cultivating animals, in particular to a method for cultivating black turtles.

Background technique

Black tortoise, refers to the black male tortoise after sexual maturity. It is rich in protein, fat, sugar, multivitamins, trace elements, etc. It has significant anti-cancer and anti-cancer effects. It is a high-quality and low-cholesterol high-end aquatic product , with the development of the economy and the improvement of people's living standards, the market demand for it is increasing. In recent years, due to overfishing and the deterioration of habitats, the natural output of wild black turtles is rare, so artificially cultivated black turtles The economic value of tortoises has greatly increased. The price of ordinary tortoises is 60-100 yuan/catties, while the price of black tortoises is as high as 800-1,000 yuan/catties.

The artificial breeding methods of common tortoises are widely known, and there are also multiple patent applications for tortoise breeding methods, but these breeding methods only provide the breeding and production methods of raising common tortoises artificially, and do not involve any relevant methods of using tortoises in an artificial environment. The method of growing tortoises into black tortoises, the proportion of male tortoises bred by these methods that can mature into black tortoises is very low, and the economic value brought is very limited.

Contents of the invention

The purpose of the present invention is to provide a method for cultivating black tortoises, which can solve the problem that the probability of male tortoises growing into black tortoises is extremely low in the existing tortoise breeding methods, and enables most common male tortoises to grow up in artificially constructed ponds. Quickly grows into a black turtle.

To achieve the above object, the present invention provides the following technical solutions:

A kind of culture method of ink turtle, comprises the following steps:

1. Breeding of turtle seedlings: In the dry pond of the backup parent turtles, select the breeding turtles with intact skin, bright skin, large individuals, and quick movements for mating and reproduction. The ratio of male to female is 2:1, and the weight requirements of female turtles More than 800 grams, the weight of male tortoises is required to be more than 300 grams; the suitable month for tortoises to mate is May to July, and the suitable temperature for mating is 20 to 30 degrees. Time and temperature range at 4 o'clock; under the condition of captive breeding, tortoises tend to have the habit of laying eggs in clusters. Female tortoises usually start to lay eggs at the end of May, peak in July and August, and end in September. .

2. Collection, hatching and selection of turtle seedlings: Collect the turtle eggs produced in step 1, let the turtle eggs undergo artificial hatching or natural hatching process to become hatchlings, and select hatchlings with intact skin and bright skin after hatching As a rearing hatchling. There are two methods for natural hatching. One is to dig a sand pit with a width of 20 to 40 cm, a depth of 20 cm, and an unlimited length at the foot of the sunny wall of the turtle pool; Eggs are arranged in the sand at a distance of 1 cm; the humidity is kept at 25-35 degrees, and the temperature is increased by the sun, and hatchlings will emerge in 50-60 days. Second: Build several small sand mounds around the turtle pool, let mature tortoises climb ashore at night, dig holes in the sand mounds to lay eggs, let them hatch naturally, and hatchlings will emerge in 50-65 days. The artificial hatching is to collect turtle eggs and put them back in a wooden box with a height of 25 centimeters, an unlimited length, and a width adapted to local conditions. Several small holes are drilled at the bottom of the box, and the bottom is covered with sand 15 to 20 centimeters thick, and the turtle eggs are arranged in the sand. , and then sprinkle 1.5-2.5 cm thick spun yarn on the turtle eggs, cover the sand with a wet towel, and keep the indoor humidity at 25-35 degrees; Invasion of pests, anti-mosquito bites, 48 to 58 days hatchlings can hatch, turtle hatching rate of more than 85%.

3. Pond selection: There are two ponds to be cultivated according to this method, which are young turtle pond and adult turtle pond respectively; the selection of the young turtle pond is to require sufficient sunlight, abundant water sources, convenient drainage and no pollution for the farm. Noisy places; generally long strip ponds with a width of 4 to 5 meters, a general water depth of 0.2 to 0.5 meters, a slope of 1:2 or 1:3 at the bottom of the pond, and water inlets and outlets. The requirement is that the transparency of the water body is 25-35 cm and conforms to the national freshwater aquaculture water standard; a wall of 0.5-1 m high is built around the pool, and the wall base is buried 30 cm into the soil. There is an open space; there is a basking platform for tortoises to bask on the open space, and the area accounts for 1/20 of the juvenile turtle pool site. The selection of the turtle pool is to require the farm to select a place with sufficient sunlight, abundant water sources, convenient drainage, and no pollution; the general water depth range is 0.5 to 1.3 meters, and the slope of the pool bottom is 1:2 or 1:3. The water inlet and outlet are set up, and the requirement for aquaculture water is that the transparency of the water body is 25-35 cm and meets the national freshwater aquaculture water standards; and the water spinach, water peanuts, and stepha grass occupying 1/6 to 1/2 of the pool area are stocked in the pool; A central island made of soft soil is set in the center of the pond water area, and earthworms are stocked on the island; snails are stocked in the water area of the turtle pool, allowing them to grow naturally near aquatic plants, and fish are nested in the pool; 0.5 For a wall ~1 meter high, the wall base is buried 30 cm into the soil, and there is an open space 0.6-1 meter long and 0.6-1 meter wide inside the wall; small grasses and small trees are planted on the land around the pool, and sand belts are spread; About 7 days before the juvenile turtles are stocked in the pond, keep the water depth of 0.15 meters, and evenly sprinkle 100Kg quicklime slurry per mu to the pond for disinfection, and then inject new water to the required water level.

4. Stocking of juvenile turtles: Disinfect the juvenile turtles selected in step 2 with 10% normal saline or 1ppm potassium permanganese water. No food will be fed during the disinfection period. After 3 days, they can be fed with cooked egg yolks and egg whites. After 7 days, they can be stocked. The density is 45～55/m ² Put into the juvenile pond selected in step 3, carry out the feed feeding to the juvenile turtle in the pond on time and evenly along the open space outside the pond for one month, described feed is conventional tortoise feed.

5. Stocking of juvenile turtles: After feeding for one month according to step 4, the juvenile turtles will grow into juvenile turtles, keep the stocking density at 45-55/ ^m2 in the pond, and replace the food with snails, shrimps, and eggs according to the amount on time The young turtles are fed; the feeding time at this stage is 2 years.

6. Stocking in adult turtle stage: After 2 years of feeding according to step 5, male tortoises with a weight of more than 150 grams can be selected from the juvenile tortoise pond every month at a stocking density of ¹ /m2 and transferred to the adult tortoise pond for natural stocking , the male tortoise grows by eating crops in the growing pond by itself, and can approach maturity within 2 years, and gradually change color and grow into a black tortoise.

7. Breeding environment and related management: including water quality regulation and control management, water quantity regulation and control management, disease prevention and control management and wintering management; the water quality regulation and management is to control the water quality in the young turtle pond and adult turtle pond to be yellow-green or yellowish-brown , the transparency of the pool water is 25-35cm, and it must be replaced according to the water quality in other seasons. In summer, 20%-30% of the overall water volume should be replaced in a week; Pond is to keep spring water depth 0.5～.7 meter, and summer water depth is 1.1～1.3 meters, and autumn water depth is 0.7～1.1 meter, and winter water depth keeps about 0.5 meter; /L is mixed with quicklime slurry and evenly sprinkled into the pond for disinfection. The wintering management described above is the management of breeding brood turtles for wintering. Of course, the hatchlings produced are generally relatively fragile, so it is best for the hatchlings to survive the winter separately from the adult turtles, and let the adult turtles find a place to spend the winter by themselves under the condition of ensuring water quality and water quality. , Most of the methods for the hatchlings to survive the winter are to put a small wooden tray indoors, put 20-30 cm thick sand in the tray, put the hatchlings into the sand, then sprinkle 0.5 cm thick spun gauze on the hatchlings, and cover the top with gauze , Spray some warm water in an appropriate amount, and you can survive the winter safely.

As a further scheme: the fishes described in step 3 include crucian carp, silver carp, silver carp and carp, and twenty silver carp and ten silver carp are stocked in the turtle pond of every mu.

As a further plan: the principle of timing and quantity is as follows: after the beginning of spring, when the water temperature rises to 16°C, start using fresh pig liver to lure food, and lure food once every 2 to 3 days, so as to promote early blooming of parent turtles When the water temperature rises above 18°C, feed once a day around 10:00 am, and when the water temperature rises above 24°C, feed twice a day at 8-9 am and 4-5 pm each day. Feed once; according to the amount, the daily feeding amount of fresh feed is 4% to 8% of the body weight of the parent turtle.

Compared with the prior art, the beneficial effects of the present invention are: on the basis of the conventional breeding method, the method provides a turtle pool where the black tortoises in a simulated natural state grow into tortoises to allow the male tortoises to freely ingest food, and the adult tortoises Putting water, earthworms, snails, water peanuts or water spinach in the pool can, on the one hand, allow it to absorb harmful heavy metals and harmful substances in the water, suppress the concentration of ammonia nitrogen in the water, and control the fertility of the water body. On the other hand, this stage generally does not require manual labor. Feeding has reduced a large amount of artificial labor, and the biggest beneficial effect of this method is to solve the problem that the male tortoise grows into a black tortoise with extremely low probability in the existing breeding methods. More than 60% of the male tortoises cultivated by this method can grow in the Within 4 years, the black tortoise with a black shell will grow, and the remaining untransformed male tortoises can also slowly transform into black tortoises. This provides a method that can stably transform black tortoises. At the same time, the evolution time of male tortoises is greatly shortened. It only takes 4 years for most of them to grow into tortoises, which is much faster than the 6-10 year growth cycle of wild tortoises, and the grown tortoises are pollution-free and have higher nutritional value. The price of ordinary tortoises is 60-100 Yuan/jin, while the price of black tortoise is as high as 800-1000 yuan/jin, and its economic value is far higher than that of ordinary tortoise, which can bring more economic benefits to farmers.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the embodiment of the present invention, carried out a cultivation process by the cultivation method of described ink turtle, comprises the following steps:

1. Breeding of turtle seedlings:

In black tortoise breeding, good turtle seedlings will directly affect the quality of the final mature black tortoise. Therefore, it is necessary to select breeding turtles with intact skin, bright skin, large individuals and quick movements in the dry pond of the reserve parent tortoise for mating. For reproduction, the weight of female tortoises should be more than 800 grams, and the weight of male tortoises should be more than 300 grams; the suitable month for tortoises to mate is May to July, and the suitable temperature for mating is 20 to 30 degrees. At 6:00, the temperature ranges from 2 to 4:00 p.m. on rainy days; under artificial breeding conditions, tortoises often have the habit of laying eggs in clusters. Female tortoises usually start laying eggs at the end of May, and lay eggs in July and August. The peak period, spawning ends in September. The breeding tortoises are mated in the above-mentioned suitable time and temperature range according to the ratio of male to female ratio of 2:1, and the female tortoises are concentrated to lay eggs. Said back-up parent tortoise dry pond is to provide a place for back-up breeding tortoises, and the selected area of the present embodiment is 5 mu.

This embodiment selects 600 female tortoises and 300 male tortoises in total. The female tortoises began to lay eggs on May 14 and continued until September 10 when the laying eggs ended. It lasted 120 days. 53% of the number of eggs laid, a total of 17,400 eggs were laid, and each female turtle laid 29 eggs on average.

2. Collection, hatching and selection of turtle seedlings:

Collect the tortoise eggs produced in step 1. Tortoise eggs are collected and the parent turtles generally lay eggs from night to dawn. During this period, the environment should be kept quiet to avoid interference. Check the sand bed every morning, find traces of spawning, and make marks with bamboo sticks. The newly laid tortoise eggs have not been fixed because the embryos have not been fixed, and moving will affect the normal development of the embryos. Therefore, after 48 hours, the embryos are basically fixed, and the eggs can be collected when animals and plants can be distinguished. Be careful when collecting eggs, handle them with care, and do not collide or damage turtle eggs. If the milky white ring in the center of the eggshell is not obvious, it should be placed separately. If there are signs of insemination after a few days, it can be treated as a fertilized egg, and if there is still no change, it will be eliminated.

After 50-65 days, the collected turtle eggs will be artificially hatched or hatched naturally to become hatchlings. After hatching is completed, hatchlings with intact skin and bright skin are selected as hatchlings for rearing.

There are two methods for natural hatching. One is to dig a sand pit with a width of 20 to 40 cm, a depth of 20 cm, and an unlimited length at the foot of the sunny wall of the turtle pool; Eggs are arranged in the sand at a distance of 1 cm; the humidity is kept at 25-35 degrees, and the temperature is increased by the sun, and hatchlings will emerge in 50-60 days. Second: Build several small sand mounds around the turtle pool, let mature tortoises climb ashore at night, dig holes in the sand mounds to lay eggs, let them hatch naturally, and hatchlings will emerge in 50-65 days. The artificial hatching is to collect turtle eggs and put them back in a wooden box with a height of 25 cm, a length of 1 meter and a width of 40 cm. Several small holes are drilled at the bottom of the box, and the bottom is covered with 15-20 cm thick sand, and the turtle eggs are arranged on the sand. Then sprinkle 1.5-2.5 cm thick spun yarn on the turtle eggs, cover the sand with a wet towel, and keep the indoor humidity at 25-35 degrees; Invasion of predators, anti-mosquito bites, hatchlings can hatch within 48-58 days, and the hatching rate is over 85%;

The present embodiment has chosen to carry out artificial hatching, and the result after hatching is: 14,964 hatchlings hatched together, the hatching rate is 86%, wherein 8,920 are female hatchlings, and the female ratio is 56.8%; 25 ~ 35mm, body weight 3.0 ~ 6.0g. The total number of juvenile turtles selected in this embodiment is 14732.

3. Pond selection: There are two ponds to be cultivated according to this method, namely the pond for young turtles and the pond for adult turtles;

The selection of the juvenile turtle pond requires the farm to select a place with sufficient sunlight, abundant water sources, convenient drainage and no pollution; it is generally a long strip pond with a width of 4 to 5 meters and a general water depth of 0.2 to 5 meters. 0.5 meters, the slope of the pool bottom is 1:2 or 1:3, and there are water inlets and outlets. The requirement for aquaculture water is that the transparency of the water body is 25-35 cm and meets the national freshwater aquaculture water standards; the pool is surrounded by 0.5-1 meters For a high wall, the base of the wall is buried 30 cm into the soil, and there is an open space 0.6 to 1 meter long and 0.6 to 1 meter wide in the wall; a basking platform for tortoises to bask in is provided on the open space, covering an area of Pool site 1/20.

The selection of the turtle pool is to require the farm to select a place with sufficient sunlight, abundant water sources, convenient drainage, and no pollution; the general water depth range is 0.5 to 1.3 meters, and the slope of the pool bottom is 1:2 or 1:3. The water inlet and outlet are set up, and the requirement for aquaculture water is that the transparency of the water body is 25-35 cm and meets the national freshwater aquaculture water standards; and the water spinach, water peanuts, and stepha grass occupying 1/6 to 1/2 of the pool area are stocked in the pool; Build a wall with a height of 0.5 to 1 meter around the pool, and the base of the wall is buried 30 cm into the soil. Inside the wall, there is an open space with a length of 0.6 to 1 meter and a width of 0.6 to 1 meter; small grasses and trees are planted on the land around the pool, and paved with The upper sand belt; a central island made of soft soil is set in the center of the pond water area, and earthworms are stocked on the island; snails are stocked in the water area of the turtle pond, allowing them to adsorb and grow naturally near aquatic plants, and fish are nested in the pond; The fish include crucian carp, silver carp, silver carp and carp, and 20 silver carp and ten silver carp are stocked in the turtle pond per mu. The feces of turtles and algae that are difficult for some other fish to digest can accelerate the energy cycle of the water body and maintain the ecological balance of the water body.

About 7 days before the juvenile turtles are stocked in the pond, keep the water depth of 0.15 meters, and evenly sprinkle 100Kg quicklime slurry per mu to the pond for disinfection, and then inject new water to the required water level.

The present embodiment has chosen the juvenile tortoise pond that area is 15 mu and the tortoise pond that area is 20 mu.

4. Stocking of juvenile turtles: Disinfect the juvenile turtles selected in step 2 with 10% normal saline or 1ppm potassium permanganese water. No food will be fed during the disinfection period. After 3 days, they can be fed with cooked egg yolks and egg whites. After 7 days, they can be stocked. Density is 45～55/m ² Put into the juvenile pond selected in step 3, carry out feed feeding to juvenile turtle in the pond on time and evenly along the open space of pond extension for one month, described feed is conventional tortoise feed; Said juvenile turtle stage is just the tortoise growth stage within one month from the hatchling tortoise raised by this method.

5. Stocking of juvenile turtles: After feeding for one month according to step 4, the juvenile turtles will grow into juvenile turtles, keep the stocking density at 45-55/ ^m2 in the pond, and replace the food with snails, shrimps, and eggs according to the amount on time The young tortoise is fed; the feeding time at this stage is 2 years; the young tortoise stage is the tortoise growth stage that grows from the young tortoise stage to the tortoise body weight within 150 grams.

6. Stocking in adult turtle stage: After 2 years of feeding according to step 5, male tortoises with a weight of more than 150 grams can be selected from the juvenile tortoise pond every month at a stocking density of ¹ /m2 and transferred to the adult tortoise pond for natural stocking , a total of 660 male tortoises were selected to enter the pond, and the rest of the tortoises were sold as ordinary breeding tortoises except for the selected part into the dry pond of the reserve parent tortoise. Sufficient space, free movement, rich food and sustainable growth. Male tortoises can keep full every day, so they can approach maturity within 2 years, gradually change color and grow into black tortoises. Time accumulates and grows into a black tortoise; the described stage of becoming a tortoise is the growth stage after the tortoise with a body weight of more than 150 grams enters the pond of becoming a tortoise. The mature black tortoise can be collected and sold on behalf of others, and then the male tortoise that meets the body weight requirements can continue to be supplemented into the adult tortoise pond from the juvenile tortoise pond to keep the circulation in a suitable place to breed.

7. Breeding environment and related management: including water quality control management, water quantity control management, disease prevention and control management and winter management;

The water quality regulation and management is to control the water quality in the juvenile turtle pond and the adult turtle pond to be yellow-green or yellowish-brown, and the water transparency of the pool is 25-35cm. In spring, autumn and winter, a certain amount of water quality should be replaced to ensure that the water quality in the pool meets the requirements. 20% to 30% of the overall water volume needs to be replaced in one week; the water volume regulation and management is to keep the water depth between 0.2 to 0.5 meters in the young turtle pool all the year round, 0.5 meters in summer, and 0.5 to 0.7 meters in the spring tortoise pool. The water depth in summer is 1.1-1.3 meters, the water depth in autumn is 0.7-1.1 meters, and the water depth in winter is kept at 0.5 meters. For feeding and water quality management, the specific preventive measures are to choose sunny days every month, mix quicklime with 20mg/L of quicklime slurry and evenly sprinkle it into the pond for disinfection. The serious environmental pollution also makes the rainfall generally weakly acidic. The quicklime slurry also plays a role in neutralizing the pH of the water; the wintering management described above is the management of breeding parental tortoises for the winter. Of course, the hatchlings produced are generally more fragile, so it is best for the hatchlings to survive the winter separately from the adult turtles. Under the condition of ensuring the water quantity and quality, let them find their own place to spend the winter. Most of the methods for the hatchlings to survive the winter are to put a small wooden tray indoors, put 20-30 cm thick sand in the tray, put the hatchlings into the sand, and then put the hatchlings in the sand. Remove 0.5 cm thick spun yarn from the body, cover it with gauze, spray some warm water on it, and you can survive the winter safely.

The principle of timing and quantity described in step 4 and step 5 is: after the beginning of spring on time, when the water temperature rises to 16°C, start using fresh pig liver to lure food, once every 2 to 3 days, to promote early Start feeding; when the water temperature rises above 18°C, feed once a day around 10:00 am, and when the water temperature rises above 24°C, feed twice a day at 8-9 am and 4-5 pm each Feed once; the daily feeding amount of fresh feed is 4% to 8% of the body weight of the parent turtle.

According to the present embodiment implemented by this black tortoise breeding method, 383 black tortoises were successfully cultured within 4 years, and the conversion rate was 58%, and in the following 2 years, 66 remaining male tortoises in this batch grew into Black tortoise, the total conversion rate reached 68%. In the following 4 years, 33 of the remaining male tortoises in this batch grew into black tortoises, and the total conversion rate reached 73%. The method for breeding black tortoises in this embodiment solves the problem In the breeding method, the probability of male tortoises growing into black tortoises is extremely low, which greatly increases the proportion of artificial breeding tortoises into black tortoises. At the same time, the evolution process of male tortoises is greatly shortened, and it only takes 4 years to grow into black tortoises. Compared with the 6 to 10-year growth cycle of wild black tortoise, it has greatly improved.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (3)

1. a cultural method for black tortoise, is characterized in that, comprises the following steps:

(1) tortoise seedling breeding: do selective body skin in the pool standby parent tortoise complete without wound, skin Lightening, individual large, the sensitive standby breeding tortoise that takes action breeds for mating, and wherein female tortoise body weight requires more than 800 grams, and public grass tortoise body weight requires more than 300 grams; The ratio that to concentrate in male and female proportioning by described standby breeding tortoise be 2: 1 is carried out mating breeding and is laid eggs within the scope of suitable time-temperature.

(2) tortoise seedling is collected hatching and is chosen: the tortoise ovum collecting institute's output in step (1), allow tortoise ovum carry out artificial incubation or natural hatching process hatching become young tortoise, after completing hatching, choose body skin complete without wound, the young tortoise of skin Lightening supports young tortoise as standby.

(3) pond is selected: need two by the pond of this method cultivation, be respectively young Gui Chi and become tortoise pond; Being chosen as of described young tortoise pond require plant require to select sunny, abundant water, ejectment water convenient, the place of pollution-free noise and excitement; Be generally strip pond, width requirement is 4 ~ 5 meters, general depth of water scope is 0.2 ~ 0.5 meter, and pond bottom sloping is 1: 2 or 1: 3 and establishes entery and delivery port, is 25-35 centimetre to the transparency that the requirement of aquaculture water is water body and meets national aquiculture fresh water standard; Build the wall that 0.5-1 rice is high around pond, the wall base buries 30 centimetres, leaves the vacant lot of long 0.6 ~ 1 meter, wide 0.6 ~ 1 meter within the walls; Described vacant lot is provided with the solarization back of the body platform that can shine the back of the body for grass tortoise, and area accounts for young Gui Chi place 1/20.Being chosen as of described one-tenth tortoise pond requires plant to require to select, and sunny, abundant water, ejectment water are convenient, the place of pollution-free noise and excitement; General depth of water scope is 0.5 ~ 1.3 meter, and pond bottom sloping is 1: 2 or 1: 3 and establishes entery and delivery port, is 25-35 centimetre to the transparency that the requirement of aquaculture water is water body and meets national aquiculture fresh water standard; And put in a suitable place to breed in pond account for pool area 1/6 ~ 1/2 water spinach, water peanut and a thousand pieces of gold grass; Waters, pond central authorities arrange a central island be piled into by weak soil, and earthworm is put on island in a suitable place to breed; Put snail biology in Gui Chi waters in a suitable place to breed, allow it be adsorbed in self-sow near water plants, and pond inner sleeve support have fish; Build the wall of 0.5 ~ 1 meter high around pond, the wall base buries 30 centimetres, leaves the vacant lot of long 0.6 ~ 1 meter, wide 0.6 ~ 1 meter within the walls; Land kind around pond is implanted with little grass and little tree, and spreads sand ribbon; Before young tortoise is put in a suitable place to breed about 7 days, described young tortoise pond, keeps the depth of water 0.15 meter, and the every even 100Kg of splashing quicklime slurry per mu carries out disinfection to pond, injects new water subsequently to required water level.

(4) the young tortoise stage puts in a suitable place to breed: standby selected by step (2) is supported young tortoise 10% physiological saline or the high manganese potassium water sterilization with 1ppm, and not feeding during sterilization, can feed ripe yolk, albumen after 3 days, is 45 ~ 55/m by breeding density after 7 days ²put into the young tortoise pond selected by step (3), on time evenly according to quantity along extension vacant lot, pond carry out forage feed one month to tortoise young in pond, described feed is conventional grass tortoise feed.

(5) the young tortoise stage puts in a suitable place to breed: after feeding one month by step (4), continues to keep breeding density to be 45 ~ 55/m ²in pond, replacing foodstuff is screw, shrimp, hair egg are fed described young tortoise on time according to quantity; It is 2 years that this stage feeds the time.

(6) the tortoise stage is become to put in a suitable place to breed: after feeding 2 years time by step (5), the public grass tortoise monthly can choosing body weight more than 150 grams from young tortoise pond is 1/m by breeding density ²proceed to into tortoise pond and carry out naturally stocking, the described public grass tortoise crop in pond that eats food voluntarily in one-tenth tortoise pond grows up, can close to ripe in 2 years, and black tortoise is grown in large quantities of variable color, and the public grass tortoises of all the other non-variable colors continue to put in a suitable place to breed to accumulate in time grows into black tortoise.

(7) breeding environment and related management: comprise regulating and controlling water quality management, water quantity regulation management, control and prevention of disease management and management of passing the winter; Described regulating and controlling water quality management is water colour yellow green or yellowish-brown for controlling described young Gui Chi with becoming water quality in tortoise pond, water transparence 25 ~ 35cm, and autumn and winter season in spring is necessarily changed by water quality, changes 20% ~ 30% of the overall water yield week in summer one; The management of described water quantity regulation keeps the depth of water between 0.2 ~ 0.5 meter for young tortoise pond throughout the year, becomes tortoise pond for the maintenance depth of water 0.5 ~ .7 rice in spring, summer the depth of water 1.1 ~ 1.3 meters, autumn the depth of water 0.7 ~ 1.1 meter, winter, the depth of water kept 0.5 meter; The management of described control and prevention of disease becomes a fine day weather for monthly choosing, and evenly splashed with the mixed lime white of making a living of the amount of 20mg/L by quicklime carries out disinfection in pond; Described management of passing the winter is the management to carrying out in the close tortoise hibernation period of cultivation, tortoise is become to guarantee that allowing it find position voluntarily in water quantity and quality situation passes the winter, young tortoise survives the winter the little treucher of sand one taking to put 20-30 cm thick in indoor sale at reduced prices, young tortoise is put into sand, the spun yarn of 0.5 cm thick is spread again with it young tortoise, hide with gauze above, a little warm water of appropriate spray, just can safe overwintering.

2. the cultural method of black tortoise according to claim 1, is characterized in that, become in described step (3) class of breeding fish of the cover described in tortoise pond to comprise: crucian, variegated carp, silver carp and carp, and silver carp 20 is put in the tortoise pond of every mu in a suitable place to breed, variegated carp ten.

3. the cultural method of black tortoise according to claim 1, it is characterized in that, principle according to quantity on time described in described step (4) and step (5) is: on time for after the beginning of spring, when water temperature rises to 16 DEG C, start to use fresh liver food calling, every 2 ~ 3 days food callings 1 time, close tortoise is impelled early to open food; When water temperature rises to more than 18 DEG C, throw something and feed about when every morning 10 1 time, when water temperature rises to more than 24 DEG C, throw something and feed twice every day, when being respectively every morning 8 ~ 9, respectively throw something and feed when afternoon 4 ~ 51 time; According to quantity for the day throwing amount of raising of fresh and alive feed is 4% ~ 8% of close tortoise body weight.