The name of the American frog is Marsh Green Frog, belonging to the genus Amphibia, Anura, Ranidae, and Rana. It was imported from the United States by Guangdong in 1987. Since 1996, the author has directed agricultural production to use rice fields to excavate small earthen ponds to simulate natural ecology and self-breeding and self-sustaining American frogs. Practice has proved that small earthen pond intensive trophozoites in the United States have small areas with high yields, low investment, large profits, and easy management of diseases. The advantages of small, easy-to-capture, and easy re-cultivation in paddy fields are the benefits of aquaculture. The key techniques for breeding American frogs in small earthen ponds are summarized as follows:
First, how to build a small earthen pond
1. Select the plot to choose a quiet environment, from the farmhouse more than 200m, fresh water, adequate water, medium fertility, strong water retention performance, convenient injection and drainage of the field, the best option is to refer to clean water all year round, close to rivers, reservoirs, ditches Field blocks.
2. The frog farm that excavates the frog pond and breeds its own frog farm must have a pro-frog pool (and spawning pond), a pond, a domestication pool, a frog, and a rearing pool. The pro-frog pool generally covers an area of ​​15 to 20 square meters, with a water depth of 30 to 40cm and a water-land ratio of 1:1. It can stock 8 to 10 groups of pro-family frogs, while supporting the construction of a shelter covering 1/3 of the area. The Dianchi Lake has a water surface width of 1.4m, a width of 0.7m and a water depth of 40cm to 50cm. The length is adapted to local conditions and the ratio of water to land is approximately 1:1. The juvenile frog domestication pool is similar to Dianchi Lake, and may be slightly smaller, with an aspect ratio of 2:1, an area of ​​about 10 to 15 square meters, and a water depth of 20 to 30 cm. The frogs and rearing ponds are similar to Dianchi Lake. The water level is slightly shallow and the land area can be slightly larger.
3. Supporting the construction of feedstuffs Each pool will be equipped with 1 to 2 feedstuffs to feed American frogs. The feed table is nailed into plates and staked in water. Allow 0.5cm to 1.0cm gaps between plates for daily cleaning. Measure the height of 5cm to 6cm around the feed table top. Dianchi's feed station is not 10cm to 20cm into the water. Frog Pond's feed station table is not 2cm to 3cm deep. Half of the frame is not submerged in water and the other half is in water. The flow of water on the feed table can cause feedstuffs to sway. Causes feed to drift across the water.
4. Set the water intake system into the water ditch around the field, the drainage ditch excavated in the middle axis of the field, the drainage ditch arranged in sequence on both sides of the pool. In order to ensure water quality, prevent off-field pesticides and other pollution, and achieve the purpose of "sun-water" in winter and spring, water reservoirs can be constructed with water tanks of the corresponding area depending on the amount of water used.
5. Build a 1.0-meter-wide blind-eyed polyethylene net or a nylon screen as a material for the anti-escape net. It can be used for 2 to 3 years. Do a good job of fences around the flock and do defense barriers for each pool. The specific approach is: 1m ~ 2m every 1 hit a stake, then the net into a defensive barrier, the fence to be buried 10cm.
Second, how to improve the hatching rate
1. After harvesting high-quality pro-family late rice, dig a small earthen pond. In the frog pool, 8 to 10 groups of excellent frogs were introduced and 1:1 spawning was performed. In order to achieve spawning hatching in the first year of spring, it is required to select the relatives with a body weight of about 500 g or more and require the pro-frogs to be physically robust, lively, disease-free and free of injury, have good posture and good gonadal development. At the same time, care should be taken to avoid inbreeding.
2. Production and use Incubation cages Incubation cages are made of 50-mesh nylon screens and are made of rectangular cages. The specifications are 1.0m in length, 0.5m in width and 0.8m in height. The box is suspended on the frame, the cage floats on the surface of the water, the box enters the water 20cm to 30cm, and the box is separated from the bottom of the tank to prevent sediment contamination. The cages are arranged in the hatchery and are fixed with wooden stakes. The number of eggs produced by one female pro-family hatched per box is approximately 9,000 to 10,000. Before laying the eggs, lay a layer of 5cm to 10cm non-toxic and thorny grass in the cage for incubation.
3. Collection of eggs The American frog spawned in Jianou area from the end of April to mid-May, with a water temperature of 18°C ​​to 32°C and an optimum water temperature of 25°C to 27°C. American frogs are fertilized in vitro, and mating usually takes 1 day to 2 days, and as many as 3 days. Spawning usually starts at dawn and ends at 9 a.m. The eggs that have just been produced are small and soft, and after a few minutes of output, they become colloidal beads that connect to the entire surface of the water and sometimes attach to the plants. It is timely to use plastic basins to harvest eggs and quickly move into hatch cages for hatching. Place the egg pieces on top of the incubator box and keep the eggs on the surface of the incubator. Pay attention to the direction of the eggs. Face up and reverse to the bottom of the tank. If the direction is incorrect, the hatching rate will be seriously affected.
4. During the incubation process, ensure that the water is clear and there is sufficient dissolved oxygen. The water in the hatchery can be dropped or injected into the pool to increase the dissolved oxygen in the pool water.
5. The timely hatching of the newly hatched quails relies on the yolk sac to provide nutrition. After 2 days to 3 days of incubation, the quails begin to feed the egg yolk filtrate. Every 10,000 oysters feed 1 to 2 egg yolks per day and the egg yolk adds 1 kg to 2 kg of water. Into the filter suspension feed, feed each day sooner or later, generally after hatching, the earthworms are carefully reared after half a month in the incubator, and they are free to move freely. At this time, they are counted and moved into the Dianchi Lake to evacuate. Cages.
Third, how to improve survival rate
1. Qingchi disinfection 10 days to 15 days before pupa stocking, disinfect with quicklime water, dry the sun in the annual dry pool, cold and cold, to eliminate pathogens.
2. Fertilizer pools are stocked with fermented and decomposed organic fertilizers of 1.2kg/m2 to 1.5kg/m2 for 5 days to 7 days before stocking, in order to cultivate the natural basic food organisms and make the manure pool underwater.
3. Reasonable stocking After 16 days of age, cockroaches have been able to feed freely, and stocking densities of about 1000/m2 are appropriate. After that, clams grow appropriately and sparsely. In order to ensure that the water quality, feed, dissolved oxygen, and other conditions meet the requirements during the metamorphosis, the stocking density before the metamorphosis is 100/m2 to 300/m2.
4. Scientifically feeding the pupal stage, the crude protein content of feed shall not be less than 45%. In Jianye, from the end of April to mid-May, the infestations of the infestations lasted from about 70 days to 80 days. The hatching hatches in September were extended to become abnormal after April of the following year. Some farmers used flour, corn flour, and fish meal to mix. Feeding crickets, although it can reduce costs, but the growth time of up to 80 days to 90 days. The use of full-priced compound feed can shorten the growth time. At the early stage (16 days to 45 days of age), the whole price of wolfberry powder is fed, and after the 45th day of age, the floating granular material is added. Feeding should adhere to the principle of "Four Sets". Feeding should be done within 1 hour to 2 hours. Do not overfeed to avoid bloating and death. The pellets should be softened, and 1kg of pellets should be soaked with 0.3kg of clean water and soaked for 10 minutes. The feed can be softened and then fed again to prevent the feed from scratching the intestine and ingesting dirty water. Different batches of eggs hatched from the larvae should be kept separately, so that the pupa metamorphosis is controlled at the same time, keeping the specifications consistent.
Fourth, how to improve the survival rate of abnormal metamorphosis before the metamorphosis, the body side of the elbow prominent, abdominal contraction thin, thin shape and stop eating. When the juvenile metamorphosis of juvenile larvae landing ashore, every day to capture in time, collected and placed in the juvenile frog domestication pool carefully domesticated, this phase of the management of the most critical, can improve the survival rate. The newly metamorphosed juvenile frog has poor sense of smell and depends mainly on visual feeding. It only feeds on live animals and must therefore feed live baits. The domestication process requires patience and requires multiple inductions. After feeding for 3 days live baits, the ratio of live bait and full-price compound feed is 1:1. The size of the full-price compound feed is appropriate to be swallowed by juvenile frogs, and gradually increase the proportion of full-price compound feed. Until all feed formula feed.
V. How to comprehensively prevent and control diseases and predators In the process of breeding frogs, frogs and frogs in the United States, disease prevention and control should implement the principle of “prevention first and prevention from oversizingâ€. In the flood season, there are mainly diseases such as water mold, enteritis, air bubbles, and worms. The frogs and frogs mainly have diseases such as red legs, rotten skin, enteritis, ascites, and trichoderma. When a disease occurs, they should be symptomatic and timely. In addition to drugs, the following key prevention and control technologies should be well established.
1. Pay attention to the clear pond, use clear lime to clear the pond, generally use 200ppm ~ 500ppm whole pond disinfection.
2. Daily disinfection, every 15 days to 20 days for water body, frog body disinfection 1, water disinfection with copper sulfate 0.5g/m3 and ferrous sulfate 0.2g/m3 mixture Quanchiposa, frog body disinfection with 7ppm Potassium permanganate was soaked in frogs for 20 minutes.
3. Prevent and control enemy pests. For snakes and rats, you can always check whether the defense barrier is damaged and repair it in time. To prevent bird damage, use shade nets to build awnings, which can prevent sun from falling and prevent birds from attacking.
First, how to build a small earthen pond
1. Select the plot to choose a quiet environment, from the farmhouse more than 200m, fresh water, adequate water, medium fertility, strong water retention performance, convenient injection and drainage of the field, the best option is to refer to clean water all year round, close to rivers, reservoirs, ditches Field blocks.
2. The frog farm that excavates the frog pond and breeds its own frog farm must have a pro-frog pool (and spawning pond), a pond, a domestication pool, a frog, and a rearing pool. The pro-frog pool generally covers an area of ​​15 to 20 square meters, with a water depth of 30 to 40cm and a water-land ratio of 1:1. It can stock 8 to 10 groups of pro-family frogs, while supporting the construction of a shelter covering 1/3 of the area. The Dianchi Lake has a water surface width of 1.4m, a width of 0.7m and a water depth of 40cm to 50cm. The length is adapted to local conditions and the ratio of water to land is approximately 1:1. The juvenile frog domestication pool is similar to Dianchi Lake, and may be slightly smaller, with an aspect ratio of 2:1, an area of ​​about 10 to 15 square meters, and a water depth of 20 to 30 cm. The frogs and rearing ponds are similar to Dianchi Lake. The water level is slightly shallow and the land area can be slightly larger.
3. Supporting the construction of feedstuffs Each pool will be equipped with 1 to 2 feedstuffs to feed American frogs. The feed table is nailed into plates and staked in water. Allow 0.5cm to 1.0cm gaps between plates for daily cleaning. Measure the height of 5cm to 6cm around the feed table top. Dianchi's feed station is not 10cm to 20cm into the water. Frog Pond's feed station table is not 2cm to 3cm deep. Half of the frame is not submerged in water and the other half is in water. The flow of water on the feed table can cause feedstuffs to sway. Causes feed to drift across the water.
4. Set the water intake system into the water ditch around the field, the drainage ditch excavated in the middle axis of the field, the drainage ditch arranged in sequence on both sides of the pool. In order to ensure water quality, prevent off-field pesticides and other pollution, and achieve the purpose of "sun-water" in winter and spring, water reservoirs can be constructed with water tanks of the corresponding area depending on the amount of water used.
5. Build a 1.0-meter-wide blind-eyed polyethylene net or a nylon screen as a material for the anti-escape net. It can be used for 2 to 3 years. Do a good job of fences around the flock and do defense barriers for each pool. The specific approach is: 1m ~ 2m every 1 hit a stake, then the net into a defensive barrier, the fence to be buried 10cm.
Second, how to improve the hatching rate
1. After harvesting high-quality pro-family late rice, dig a small earthen pond. In the frog pool, 8 to 10 groups of excellent frogs were introduced and 1:1 spawning was performed. In order to achieve spawning hatching in the first year of spring, it is required to select the relatives with a body weight of about 500 g or more and require the pro-frogs to be physically robust, lively, disease-free and free of injury, have good posture and good gonadal development. At the same time, care should be taken to avoid inbreeding.
2. Production and use Incubation cages Incubation cages are made of 50-mesh nylon screens and are made of rectangular cages. The specifications are 1.0m in length, 0.5m in width and 0.8m in height. The box is suspended on the frame, the cage floats on the surface of the water, the box enters the water 20cm to 30cm, and the box is separated from the bottom of the tank to prevent sediment contamination. The cages are arranged in the hatchery and are fixed with wooden stakes. The number of eggs produced by one female pro-family hatched per box is approximately 9,000 to 10,000. Before laying the eggs, lay a layer of 5cm to 10cm non-toxic and thorny grass in the cage for incubation.
3. Collection of eggs The American frog spawned in Jianou area from the end of April to mid-May, with a water temperature of 18°C ​​to 32°C and an optimum water temperature of 25°C to 27°C. American frogs are fertilized in vitro, and mating usually takes 1 day to 2 days, and as many as 3 days. Spawning usually starts at dawn and ends at 9 a.m. The eggs that have just been produced are small and soft, and after a few minutes of output, they become colloidal beads that connect to the entire surface of the water and sometimes attach to the plants. It is timely to use plastic basins to harvest eggs and quickly move into hatch cages for hatching. Place the egg pieces on top of the incubator box and keep the eggs on the surface of the incubator. Pay attention to the direction of the eggs. Face up and reverse to the bottom of the tank. If the direction is incorrect, the hatching rate will be seriously affected.
4. During the incubation process, ensure that the water is clear and there is sufficient dissolved oxygen. The water in the hatchery can be dropped or injected into the pool to increase the dissolved oxygen in the pool water.
5. The timely hatching of the newly hatched quails relies on the yolk sac to provide nutrition. After 2 days to 3 days of incubation, the quails begin to feed the egg yolk filtrate. Every 10,000 oysters feed 1 to 2 egg yolks per day and the egg yolk adds 1 kg to 2 kg of water. Into the filter suspension feed, feed each day sooner or later, generally after hatching, the earthworms are carefully reared after half a month in the incubator, and they are free to move freely. At this time, they are counted and moved into the Dianchi Lake to evacuate. Cages.
Third, how to improve survival rate
1. Qingchi disinfection 10 days to 15 days before pupa stocking, disinfect with quicklime water, dry the sun in the annual dry pool, cold and cold, to eliminate pathogens.
2. Fertilizer pools are stocked with fermented and decomposed organic fertilizers of 1.2kg/m2 to 1.5kg/m2 for 5 days to 7 days before stocking, in order to cultivate the natural basic food organisms and make the manure pool underwater.
3. Reasonable stocking After 16 days of age, cockroaches have been able to feed freely, and stocking densities of about 1000/m2 are appropriate. After that, clams grow appropriately and sparsely. In order to ensure that the water quality, feed, dissolved oxygen, and other conditions meet the requirements during the metamorphosis, the stocking density before the metamorphosis is 100/m2 to 300/m2.
4. Scientifically feeding the pupal stage, the crude protein content of feed shall not be less than 45%. In Jianye, from the end of April to mid-May, the infestations of the infestations lasted from about 70 days to 80 days. The hatching hatches in September were extended to become abnormal after April of the following year. Some farmers used flour, corn flour, and fish meal to mix. Feeding crickets, although it can reduce costs, but the growth time of up to 80 days to 90 days. The use of full-priced compound feed can shorten the growth time. At the early stage (16 days to 45 days of age), the whole price of wolfberry powder is fed, and after the 45th day of age, the floating granular material is added. Feeding should adhere to the principle of "Four Sets". Feeding should be done within 1 hour to 2 hours. Do not overfeed to avoid bloating and death. The pellets should be softened, and 1kg of pellets should be soaked with 0.3kg of clean water and soaked for 10 minutes. The feed can be softened and then fed again to prevent the feed from scratching the intestine and ingesting dirty water. Different batches of eggs hatched from the larvae should be kept separately, so that the pupa metamorphosis is controlled at the same time, keeping the specifications consistent.
Fourth, how to improve the survival rate of abnormal metamorphosis before the metamorphosis, the body side of the elbow prominent, abdominal contraction thin, thin shape and stop eating. When the juvenile metamorphosis of juvenile larvae landing ashore, every day to capture in time, collected and placed in the juvenile frog domestication pool carefully domesticated, this phase of the management of the most critical, can improve the survival rate. The newly metamorphosed juvenile frog has poor sense of smell and depends mainly on visual feeding. It only feeds on live animals and must therefore feed live baits. The domestication process requires patience and requires multiple inductions. After feeding for 3 days live baits, the ratio of live bait and full-price compound feed is 1:1. The size of the full-price compound feed is appropriate to be swallowed by juvenile frogs, and gradually increase the proportion of full-price compound feed. Until all feed formula feed.
V. How to comprehensively prevent and control diseases and predators In the process of breeding frogs, frogs and frogs in the United States, disease prevention and control should implement the principle of “prevention first and prevention from oversizingâ€. In the flood season, there are mainly diseases such as water mold, enteritis, air bubbles, and worms. The frogs and frogs mainly have diseases such as red legs, rotten skin, enteritis, ascites, and trichoderma. When a disease occurs, they should be symptomatic and timely. In addition to drugs, the following key prevention and control technologies should be well established.
1. Pay attention to the clear pond, use clear lime to clear the pond, generally use 200ppm ~ 500ppm whole pond disinfection.
2. Daily disinfection, every 15 days to 20 days for water body, frog body disinfection 1, water disinfection with copper sulfate 0.5g/m3 and ferrous sulfate 0.2g/m3 mixture Quanchiposa, frog body disinfection with 7ppm Potassium permanganate was soaked in frogs for 20 minutes.
3. Prevent and control enemy pests. For snakes and rats, you can always check whether the defense barrier is damaged and repair it in time. To prevent bird damage, use shade nets to build awnings, which can prevent sun from falling and prevent birds from attacking.
ORIENTMED is professional pharmacy products supplier.
MOQ: 100pcs
MOQ for OEM: 2000pcs
The main products are as follows;
1. Stethoscope ,
3. Digital Blood Pressure Monitor,
5. Nebulizer ,
6. Oral Irrigator ,
7. pharmacy products
Diagnostic Test Products,Digital Thermometer,Oral Irrigator,Blood Glucose Meter
Hebei Orient Imp. & Exp. Co. Ltd. , https://www.orientmedcare.com