Abstract: The main breed currently used for artificial breeding in China is the wide-body gold line. This article discusses the identification, breeding techniques, and fishing and processing of wide-body goldfish.
Key words: wide-body goldfish identification of artificial breeding, fishing and processing.
Whitmaniapigra (Whitmar), commonly known as the grasshopper, is also known as the leech. It is categorized in zoology as an annelid, an ape, an order, and a physician. There are three main types of traditional medical leech breeding in China: wide-body gold thread larvae, fine gold thread larvae, and Japanese doctors' orders. The saliva of leeches contains a variety of active substances, the most important of which is hirudin, an anticoagulant substance with a high medicinal value. In the Ming Dynasty, Li Shizhen had a record of breaking blood and licking worms in the “Compendium of Materia Medicaâ€. Through the function, it is often used to treat rickets, lumps, blood stasis, amenorrhea, bruises, etc. In recent years, hydraulic pressure has been used to replant limbs and inhibit cancer cell growth. According to the current market demand, there is a bright future for artificial breeding farms in rural areas, which is a new way for science and technology to become rich. Now we will introduce the following aspects:
I. Wide-body golden thread ticks Identification of wide-body gold wire carcasses grown, slightly woven, flat, adult body length 60-130 mm, width 8-20 mm, weight about 20-30 grams, the back is usually dark green , with 5 fine yellow and black spots composed of vertical lines, a deep back line, belly pale yellow, mixed with many irregular tea green spots. The number of rings in the body ring is 107, and the link is obvious. The male reproductive pores are located in the 33-34 ring groove and the female gonads are located in the 38-39 ring groove. Hermaphrodite and allogeneic fertilization (for details, see the outline of the wide-body gold thread and the three types of medical inequality morphological discrimination table).
Second, wide-body gold line artificial breeding technology
The wide-body gold line has strong vitality, long crude growth, rapid breeding, easy management, low general investment, and high profitability. Extensive polyculture of fish ponds in the pond can harvest 400-500 kilograms of finished product per mu, 60-80 kilograms of dried product, and output value of 3,000-5,000 yuan; 1,000-1,500 kilograms of finished product can be obtained from small water surface intensive intensive production per hectare. -120 kilograms, output value 6000-10000 yuan (calculated at an average price of 80 yuan per kg dry matter).
1. Aquaculture Aquaculture Pond Aquaculture Aquaculture ponds should show no pollution in the upstream, and the water resources can be improved. The ponds can be farmed extensively: the existing ponds can be used for extensive polyculture of the surimi: the existing shallow ponds or low-yielding fields can be used to dig and dig Into a number of small pools continuum intensive, the water should be small should not be large, usually 30-60 square meters (10-20 meters long, 3 meters wide). The pond is 1.5-1.8 meters high and the water depth is 0.8-1 meters, and then it is connected to form a large pool. Each tank is provided with one inlet and outlet at the opposite corner, and sealed with a dense mesh to prevent the otters from fleeing. Some stones and aquatic plants are put in the bottom of the pool to allow the otters to inhabit and grow.
2. The source of the seedlings of the leeches to breed the leeches: One can collect the wild seeds on the spot; the other can procure the domesticated seeds from the field. Restocking time is generally suitable for early spring (in October of that year, it can be returned for processing and sale); the stocking density pond pond is extensively polycultured and can lay about 10 thousand kilograms of about 10 thousand kilograms (about 1.5 centimeters or more) per acre. Small pools are bred and raised into 60-80 pups per acre. The pups begin to appear in large numbers in June and grow rapidly.
3, artificial breeding of mink otter Spawning time: the middle and lower reaches of the Yangtze River generally from late April to mid-June, the species can lay eggs 2 times per year, each species can breed 60-80 each time, young in June Began to appear in large numbers and grow rapidly.
(1) Seed pool requirements. Breeding pond breeding pond water surface is generally suitable for 30 square meters, built a square length and width of 5 meters 5 meters 6 meters, the pool around the pool wall is set by 1-1.5 square meters 4 platforms, the middle of the pool water depth of 0.5 meters, each The platform is 2 cm above the surface of the water and it is kept moist. The soil on the platform should be loose sandy soil with high humus content. It is convenient for the otter to inhabit and lay eggs (do not use yellow soil). The platform must be protected from water and dry drought. Flooded after the rain so as not to affect reproduction.
(2) Seed selection. The species is selected to be older than 2 years, and the individual body is about 30 grams. The body is robust, and the lively ostracodic hand corners are crushed into a ball. This kind of leeches has lots of eggs and high hatching rate.
(3) Restocking is done. The height of the species is to be calculated according to the area of ​​the platform in the seed pond. Generally about 40-50 eggs are stocked for about 1.5 kg per square meter. After the species has entered the pond, it is necessary to maintain the water quality. There should be plenty of plankton and snail feeding.
4) Spawning hatching. The species must keep quiet in the period of spawning, and people should move less to prevent the species from being frightened and fleeing, resulting in empty space. After the species have spawned eggs, they must be caught in a centralized pool or processed dry goods. The reproduction at this time is converted into a hatchery, where the eggs are naturally hatched in the acupuncture points. The larvae hatch from 11-25 days of birth and the larvae are similar to the adults, showing a yellowish cork and a body back. The side of the two sides of the knife is lined with seven purple-grey fine vertical stripes. As the young cubs continue to grow, the vertical stripes gradually change to form five strips of yellow and black stripes, and the mother forms a body color pattern. During the hatching period of eggs, one should try to avoid walking around the platform, so as not to break through the eggs, the platform must maintain a new understanding of the situation, can be covered with a layer of aquatic plants, rain to prevent flooding the platform. The young cubs are born within 2 to 3 days of the egg hatching. They mainly rely on their own yolks to maintain their lives. They can feed on their own for 3 days. The newly hatched cubs mainly eat the blood and juice of snails and sometimes grow in a quail. The entire soft part of the oysters, snails, and maggots can be swallowed and the larvae grow rapidly. After 15 days, if the average individual grows by more than 15 cm, they can be transferred to large pools for artificial rearing. By September and October, they can grow into pupa.
4. Aquatic rearing management Aquatic leeches have strong adaptability, and the general ponds can be cultured. The main management is feeding the bait and adjusting the water quality.
(1) Feed the bait. Wide-body gold oysters are mainly cultivated and fed with snails, plankton and snails.
Key words: wide-body goldfish identification of artificial breeding, fishing and processing.
Whitmaniapigra (Whitmar), commonly known as the grasshopper, is also known as the leech. It is categorized in zoology as an annelid, an ape, an order, and a physician. There are three main types of traditional medical leech breeding in China: wide-body gold thread larvae, fine gold thread larvae, and Japanese doctors' orders. The saliva of leeches contains a variety of active substances, the most important of which is hirudin, an anticoagulant substance with a high medicinal value. In the Ming Dynasty, Li Shizhen had a record of breaking blood and licking worms in the “Compendium of Materia Medicaâ€. Through the function, it is often used to treat rickets, lumps, blood stasis, amenorrhea, bruises, etc. In recent years, hydraulic pressure has been used to replant limbs and inhibit cancer cell growth. According to the current market demand, there is a bright future for artificial breeding farms in rural areas, which is a new way for science and technology to become rich. Now we will introduce the following aspects:
I. Wide-body golden thread ticks Identification of wide-body gold wire carcasses grown, slightly woven, flat, adult body length 60-130 mm, width 8-20 mm, weight about 20-30 grams, the back is usually dark green , with 5 fine yellow and black spots composed of vertical lines, a deep back line, belly pale yellow, mixed with many irregular tea green spots. The number of rings in the body ring is 107, and the link is obvious. The male reproductive pores are located in the 33-34 ring groove and the female gonads are located in the 38-39 ring groove. Hermaphrodite and allogeneic fertilization (for details, see the outline of the wide-body gold thread and the three types of medical inequality morphological discrimination table).
Second, wide-body gold line artificial breeding technology
The wide-body gold line has strong vitality, long crude growth, rapid breeding, easy management, low general investment, and high profitability. Extensive polyculture of fish ponds in the pond can harvest 400-500 kilograms of finished product per mu, 60-80 kilograms of dried product, and output value of 3,000-5,000 yuan; 1,000-1,500 kilograms of finished product can be obtained from small water surface intensive intensive production per hectare. -120 kilograms, output value 6000-10000 yuan (calculated at an average price of 80 yuan per kg dry matter).
1. Aquaculture Aquaculture Pond Aquaculture Aquaculture ponds should show no pollution in the upstream, and the water resources can be improved. The ponds can be farmed extensively: the existing ponds can be used for extensive polyculture of the surimi: the existing shallow ponds or low-yielding fields can be used to dig and dig Into a number of small pools continuum intensive, the water should be small should not be large, usually 30-60 square meters (10-20 meters long, 3 meters wide). The pond is 1.5-1.8 meters high and the water depth is 0.8-1 meters, and then it is connected to form a large pool. Each tank is provided with one inlet and outlet at the opposite corner, and sealed with a dense mesh to prevent the otters from fleeing. Some stones and aquatic plants are put in the bottom of the pool to allow the otters to inhabit and grow.
2. The source of the seedlings of the leeches to breed the leeches: One can collect the wild seeds on the spot; the other can procure the domesticated seeds from the field. Restocking time is generally suitable for early spring (in October of that year, it can be returned for processing and sale); the stocking density pond pond is extensively polycultured and can lay about 10 thousand kilograms of about 10 thousand kilograms (about 1.5 centimeters or more) per acre. Small pools are bred and raised into 60-80 pups per acre. The pups begin to appear in large numbers in June and grow rapidly.
3, artificial breeding of mink otter Spawning time: the middle and lower reaches of the Yangtze River generally from late April to mid-June, the species can lay eggs 2 times per year, each species can breed 60-80 each time, young in June Began to appear in large numbers and grow rapidly.
(1) Seed pool requirements. Breeding pond breeding pond water surface is generally suitable for 30 square meters, built a square length and width of 5 meters 5 meters 6 meters, the pool around the pool wall is set by 1-1.5 square meters 4 platforms, the middle of the pool water depth of 0.5 meters, each The platform is 2 cm above the surface of the water and it is kept moist. The soil on the platform should be loose sandy soil with high humus content. It is convenient for the otter to inhabit and lay eggs (do not use yellow soil). The platform must be protected from water and dry drought. Flooded after the rain so as not to affect reproduction.
(2) Seed selection. The species is selected to be older than 2 years, and the individual body is about 30 grams. The body is robust, and the lively ostracodic hand corners are crushed into a ball. This kind of leeches has lots of eggs and high hatching rate.
(3) Restocking is done. The height of the species is to be calculated according to the area of ​​the platform in the seed pond. Generally about 40-50 eggs are stocked for about 1.5 kg per square meter. After the species has entered the pond, it is necessary to maintain the water quality. There should be plenty of plankton and snail feeding.
4) Spawning hatching. The species must keep quiet in the period of spawning, and people should move less to prevent the species from being frightened and fleeing, resulting in empty space. After the species have spawned eggs, they must be caught in a centralized pool or processed dry goods. The reproduction at this time is converted into a hatchery, where the eggs are naturally hatched in the acupuncture points. The larvae hatch from 11-25 days of birth and the larvae are similar to the adults, showing a yellowish cork and a body back. The side of the two sides of the knife is lined with seven purple-grey fine vertical stripes. As the young cubs continue to grow, the vertical stripes gradually change to form five strips of yellow and black stripes, and the mother forms a body color pattern. During the hatching period of eggs, one should try to avoid walking around the platform, so as not to break through the eggs, the platform must maintain a new understanding of the situation, can be covered with a layer of aquatic plants, rain to prevent flooding the platform. The young cubs are born within 2 to 3 days of the egg hatching. They mainly rely on their own yolks to maintain their lives. They can feed on their own for 3 days. The newly hatched cubs mainly eat the blood and juice of snails and sometimes grow in a quail. The entire soft part of the oysters, snails, and maggots can be swallowed and the larvae grow rapidly. After 15 days, if the average individual grows by more than 15 cm, they can be transferred to large pools for artificial rearing. By September and October, they can grow into pupa.
4. Aquatic rearing management Aquatic leeches have strong adaptability, and the general ponds can be cultured. The main management is feeding the bait and adjusting the water quality.
(1) Feed the bait. Wide-body gold oysters are mainly cultivated and fed with snails, plankton and snails.