Introduction
Bullfrog (Rana) aka Xuan frog, Rana esculenta Bullfrog (Rana) aka Xuan frog, Rana esculenta . of a of a .
bullfrog Rana genus Vertebrata, Amphibia, Ranidae, in which a large number of species, which can weigh more than a kilo bullfrog Rana genus Vertebrata, Amphibia, Ranidae, in which a large number of species, which can weigh more than a kilo . native to North America, is the edible frogs in habitus, weight may be up to 1 kilogram of native to North America, is the edible frogs in habitus, weight may be up to 1 kilogram of .
bullfrogs and fast growth, high - fat high - protein low - fat foods or deluxe nutritive foods bullfrogs and fast growth, high - fat high - protein low - fat foods or deluxe nutritive foods . skin and internal organs may be pharmaceutically, frog oil production senior lubricating oil can be skin and internal organs may be pharmaceutically, frog oil production senior lubricating oil can be .
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Introduction Of Origin
. native to North America from Cuba in 1959, Japan needs China's inland native to North America from Cuba in 1959, Japan needs China's inland .
China mainly relies on fishery production in the country, all parts of the country, mainly concentrated in the southern province of Hunan, Jiangxi, and Xinjiang, Sichuan, Hubei, China mainly relies on fishery production in the country, all parts of the country, mainly concentrated in the southern province of Hunan, Jiangxi, and Xinjiang, Sichuan, Hubei, . .
Frog merchandise mainly in autumn and winter Frog merchandise mainly in autumn and winter.
Morphological Feature
Frog large stocky frog is 20 centimetres long, weigh up to 1 kg of the body back Frog large stocky frog is 20 centimetres long, weigh up to 1 kg of the body back . green - brown, with dark brown markings on its belly pale gray, single male specimen of the pharynx, skin green - brown, with dark brown markings on its belly pale gray, single male specimen of the pharynx, skin .
bullfrog (Rana catesbeiana) and frog - shaped generally the same, but bigger in size, the female frog grows to 20 cm, 18 cm in males, the maximum an individual can reach 2 kg bullfrog (Rana catesbeiana) and frog - shaped generally the same, but bigger in size, the female frog grows to 20 cm, 18 cm in males, the maximum an individual can reach 2 kg . flat flat .
with head width of the mouth end of the bit, the tip of the snout rounded blunt with head width of the mouth end of the bit, the tip of the snout rounded blunt . upward gaze diplopia due to the two - part pilot, the eyelids, a crease of the nictitating membrane, may be an eye closed upward gaze diplopia due to the two - part pilot, the eyelids, a crease of the nictitating membrane, may be an eye closed .
back slightly rough, slightly ribbed skin back slightly rough, slightly ribbed skin . limbs stout, short forelimbs, limbs stout, short forelimbs,.
unwebbed toes inside the first male individuals have a distinctive grey nodular protrusions unwebbed toes inside the first male individuals have a distinctive grey nodular protrusions . hind legs long, webbed toes hind legs long, webbed toes .
complexion as the living environment and changeable, often back and limbs is brown, with dark brown markings on its back;head peristome and bright green;ventral white;throat below the color of the male, female, mostly white, grey or dark grey in males was aureus complexion as the living environment and changeable, often back and limbs is brown, with dark brown markings on its back;head peristome and bright green;ventral white;throat below the color of the male, female, mostly white, grey or dark grey in males was aureus . sounds great, Wen as far the cow named sounds great, Wen as far the cow named .
some other large frogs also called Bullfrog, such as Africa's box head frog (R., or) and India (Rana rugulosa R. tigrina) and South America of the Leptodactylidae () Frog green or brown, abdomen white to yellowish, limbs with black streaking Frog green or brown, abdomen white to yellowish, limbs with black streaking .
, of about 20 cm (8),limb up to 25 centimeters (10) , of about 20 cm (8),limb up to 25 centimeters (10) . body weight exceeds 0.5 kg (1 lb)
Chang lives in still water or near yield spring propagation Chang lives in still water or near yield spring propagation ., , .
tadpole larvae in the water was brown with darker spots tadpole larvae in the water was brown with darker spots . 1 ∼ tadpole stage lasts 3 years, decided that the climatic conditions of many edible bullfrog 1 ∼ tadpole stage lasts 3 years, decided that the climatic conditions of many edible bullfrog .
or or . serves as the experimental materials serves as the experimental materials.
Bullfrog Feeding
bullfrog's diet to animal feed, especially likes eating live bait bullfrog's diet to animal feed, especially likes eating live bait . during different stages of feeding different during different stages of feeding different .
tadpoles can feed to egg yolk, blood powder, angular powder, soybean milk, bran, flour, etc tadpoles can feed to egg yolk, blood powder, angular powder, soybean milk, bran, flour, etc . larval and adult food range comprises: annelids such as earthworms;arthropods, crustaceans such as shrimp;molluscs such as snails, clams;Fish, amphibians, reptiles and mammals of the larvae of fish viscera larval and adult food range comprises: annelids such as earthworms;arthropods, crustaceans such as shrimp;molluscs such as snails, clams;Fish, amphibians, reptiles and mammals of the larvae of fish viscera .
naturally greedy bullfrogs, the growth season with big naturally greedy bullfrogs, the growth season with big . bait tray for feeding the crowds jostle each other on the disk, the infirm, small stuff is usually extruded disk outer bait tray for feeding the crowds jostle each other on the disk, the infirm, small stuff is usually extruded disk outer .
bullfrog of maximum volume of the stomach to empty the stomach capacity of l0 times bullfrog of maximum volume of the stomach to empty the stomach capacity of l0 times . 6 ~ 8 months of that season, a month, on average, each average daily l60g artificial feed 6 ~ 8 months of that season, a month, on average, each average daily l60g artificial feed .
food and food and . 5 grams are advisable bullfrog ferocious, often as a result of a large frog eats small frog phenomenon 5 grams are advisable bullfrog ferocious, often as a result of a large frog eats small frog phenomenon .
therefore, farmed bullfrog to size separation, avoid its to cannibalism in extreme lack of food therefore, farmed bullfrog to size separation, avoid its to cannibalism in extreme lack of food . Bullfrog, Bullfrog metabolism will naturally reduce Bullfrog, Bullfrog metabolism will naturally reduce .
in cryogenic hibernation.bullfrog can withstand 4 months to 1 year of starvation, the body weight of a substantial reduction of
Propagation Manner
Bullfrog aquatic habitat is rich in lakes, ponds and permanent shallow are bushes of the adjacent waters of Bullfrog aquatic habitat is rich in lakes, ponds and permanent shallow are bushes of the adjacent waters of . multi - dispersed, hidden, emerging at night to forage multi - dispersed, hidden, emerging at night to forage .
diet is very wide, it can swallow prey almost all animals, including invertebrates, fish, frogs, salamanders, turtles, snakes, birds, rodents, such as diet is very wide, it can swallow prey almost all animals, including invertebrates, fish, frogs, salamanders, turtles, snakes, birds, rodents, such as . mostly in summer, and hibernate after 2 ~ 3 weeks begin spawning mostly in summer, and hibernate after 2 ~ 3 weeks begin spawning .
males often arboreal, aquatic plants were more of a pond or lake shallows in the rainy night of loud cry males often arboreal, aquatic plants were more of a pond or lake shallows in the rainy night of loud cry . 61.18 in before dawn 4 when about to spawn annually spawn is 1 ~ 2 tablets of above
egg with a diameter of about 2 mm, i.e., egg water dispersion into a sheet,multi - floating or adhered in the water on late tadpole - length are usually in the range of 11 ~ 16 cm, diatoms, algae, plankton and larvae that feed on insects, or the next year at metamorphosis late tadpole - length are usually in the range of 11 ~ 16 cm, diatoms, algae, plankton and larvae that feed on insects, or the next year at metamorphosis .
just finished the larval's length 5 ~ 6. 6 cm, two years after up to 12 cm, has now reached sexual maturity of the longest known bullfrogs at the age of 15 years and eight months bullfrogs at the age of 15 years and eight months .
Value
Food Value
Bullfrog is nutrient rich. According to the analysis, each hectogram bullfrog meat in the protein - containing 19.9 grams fat, 0. 3 g, is a kind of high protein, low fat, low cholesterol and delicious food bullfrogs have tonic for detoxication and treatment of certain diseases, which is regarded by medical science as rending a person: people (especially women) diet, eating a salmon appetizer, gastric hyperacidity or weak patients the most appropriate eats the bullfrog bullfrogs have tonic for detoxication and treatment of certain diseases, which is regarded by medical science as rending a person: people (especially women) diet, eating a salmon appetizer, gastric hyperacidity or weak patients the most appropriate eats the bullfrog .
bullfrog skin curry, and advanced gloves made of an elastic tie, by the consumers it bullfrog skin curry, and advanced gloves made of an elastic tie, by the consumers it . of refining the bark can be glue, is used for jewelry, diamonds, emeralds and other decorations on its of refining the bark can be glue, is used for jewelry, diamonds, emeralds and other decorations on its .
viscose, head,viscera and limbs and feet and the waste may be processed and livestock feed viscose, head,viscera and limbs and feet and the waste may be processed and livestock feed .
Economic Value
Bullfrog with fast - growing, fleshy and delicious with rich nutrition, protein content, high valuable foods Bullfrog with fast - growing, fleshy and delicious with rich nutrition, protein content, high valuable foods . .
can also export its bark can be leather, dirty Pharmaceuticals can also export its bark can be leather, dirty Pharmaceuticals . fast growth of bullfrog meat tastes tender, fresh and delicious, high - fat high - protein low - fat foods or deluxe nutritive foods fast growth of bullfrog meat tastes tender, fresh and delicious, high - fat high - protein low - fat foods or deluxe nutritive foods .
frog skin can be used to make high grade leather, whose turf is thin, soft, tough, and the like is manufactured on the frog skin can be used to make high grade leather, whose turf is thin, soft, tough, and the like is manufactured on the . wallets, belts, neckties, shoes, musical instruments, surgical wire in an excellent material for wallets, belts, neckties, shoes, musical instruments, surgical wire in an excellent material for .
skin and internal organs may be pharmaceutically, frog oil production senior lubricating oil can be skin and internal organs may be pharmaceutically, frog oil production senior lubricating oil can be .
Medicinal Value
CV is very nutritious and delicious high CV is very nutritious and delicious high . every 100 grams contain protein in bullfrog 19.9 grams fat, 0. 3 g, is a kind of high protein, low fat, low cholesterol food, has been loved
bullfrogs have nourishing detoxification, and the digestive function of the difference or hyperacidity of the people and the physique weak person can be used to nourish the body bullfrogs have nourishing detoxification, and the digestive function of the difference or hyperacidity of the people and the physique weak person can be used to nourish the body . bullfrog can promote the qi and blood converges on the exuberant, energetic, nourishing yin and calming and invigorating vital energy, which is beneficial to the patient's recovery bullfrog can promote the qi and blood converges on the exuberant, energetic, nourishing yin and calming and invigorating vital energy, which is beneficial to the patient's recovery .
Precautions
Bullfrog is an ectotherm, when the water temperature drop is 6 to 12. degree. C. when the start of this period of hibernation management should pay attention to the following three points: before December and to keep the bullfrog enter hibernation, lurking in the underwater or in caves, rely on cutaneous respiration dissolve of oxygen and nutrients to sustain the body's metabolism so lowly management should pay attention to the following three points: before December and to keep the bullfrog enter hibernation, lurking in the underwater or in caves, rely on cutaneous respiration dissolve of oxygen and nutrients to sustain the body's metabolism so lowly .
, hibernation ahead to be focused on stimulating fat, every day should be sufficiently high nutritious value and comprehensive feed, there may be some conditions of increasing maggot, and loach etc., ensure the bullfrogs feeding up to hibernation are accumulated with the raw material,reduce death wintering place to shelter it from the bullfrogs in the middle of the cave - wintering croproot and face south place to dig the cave, dig caves depending on how large the herd size, a typical cave having a diameter of up to 1.5 cm, 1 m deep cave
to wet and to avoid the pools of water flooded cave, and there is a problem that the paravent to wet and to avoid the pools of water flooded cave, and there is a problem that the paravent . In addition, the entire hibernation should also guard against the intrusion of rodents on the surface of the pool In addition, the entire hibernation should also guard against the intrusion of rodents on the surface of the pool .
the whole winter freezing bullfrog to keep 2 cm water layer, and the water are installed on a scaffold, i.e., anti - frost end with? bamboo? piece above the bath with a semicircular shape of the scaffolding, or straw mats on the cover film when the temperature in. degree. C.
6 above shall be lifted when the thin film part,ventilation and air - conditioning as well in order to ensure the normal wintering bullfrog 6 above shall be lifted when the thin film part,ventilation and air - conditioning as well in order to ensure the normal wintering bullfrog . 2 2.
Bullfrog's Red Leg Sickness Prevention
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Homely Practices
Homely Bullfrog Legs
Bullfrog only material 2, the four red pepper, green pepper, 1 teaspoon minced garlic flavoring cooking wine 1 tablespoon, half tablespoon soy sauce, 1 spoon of starch, cooking wine 1 tablespoon soy sauce, 1 tablespoon, half a teaspoon of salt, half tablespoon sugar, 1 teaspoon vinegar (from method 1, to kill good bullfrog hacked off limbs, and rinse, drain. Mix in seasoning and marinade, fried in hot oil and spooning 2, red pepper, green pepper, respectively is abluent, sliver, go seed, slicing, stir - fry the garlic with 2T of the rear into the chillies and fry the bullfrog legs in a pot, add in seasonings with tasty stir - frying, dish out 2, red pepper, green pepper, respectively is abluent, sliver, go seed, slicing, stir - fry the garlic with 2T of the rear into the chillies and fry the bullfrog legs in a pot, add in seasonings with tasty stir - frying, dish out .
Braised Bullfrog
Bullfrog only material 4, ginger, garlic, chilli, rice wine, soy sauce, chicken essence from method 1, bullfrog kill good dicing, washing, must bring a bloodbath (clean, otherwise there is a fishy smell);2, to serve, heat the oil drain (slightly), seaweed, ginger, garlic and chilies;3, Put bullfrog meat, fried boiled, add yellow rice or millet wine (a rice bowl), in 3 minutes, and lets the bullfrog enters the inside of the meat;4. Add soy sauce, fry, heat and continue covered about 8 ~ 10 minutes, the meat has been watching the bullfrog, chicken bouillon with a spoonful of the semi - final, is
Garlic Bullfrog
Raw garlic flap 10, bullfrogs, 300 grams, ginger, garlic, herbs and some excipients: 6 grams of cortex lycii radicis, 3 g of ephedra, mulberry bark, chlorothalonil, 6 g, licorice 3 g, cassia twig, 1. 5 g of flavoring cooking wine 1 / 2 t salt, 1 1 / 2 teaspoon of Method 1. Wash the bullfrog, chopping block;Garlic frying that sweet 2. bullfrogs, all of the herbs, ginger, cooking wine, garlic, salt and the water 400 ml
3. simmered for 15 minutes, scatter the leeks for eating notes for 1, after first slightly fried garlic, garlic flavor without being too heavy and it wasn't, don't like garlic for easier;without fried, more healthy notes for 1, after first slightly fried garlic, garlic flavor without being too heavy and it wasn't, don't like garlic for easier;without fried, more healthy .
2, bullfrog can purchase processed back to the cooking, but the best of the meat is fresh delicious compared 2, bullfrog can purchase processed back to the cooking, but the best of the meat is fresh delicious compared . featured this dish capable of relieving cough and asthma, and lung - heat, cough, asthma, bronchitis, have a soothing effect featured this dish capable of relieving cough and asthma, and lung - heat, cough, asthma, bronchitis, have a soothing effect .
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American Frog With A Difference
Difference Contour
Although American bullfrogs and bullfrog is very similar to each other, but on closer inspection, there exist some differences between them, and which is embodied in the following points: 1. The head difference: bullfrog is wide and flat head, resembling a toad, the binocular is slightly convex;American frog's head is slightly pointed, the eyes are markedly protruding 2, the skin can be distinguished from the bullfrog skin rough knot, head greenish - brown in colour and have greyish black, studded with blocky stripes;beauty of the skin and little wart frog, green head season. His whole body is greenish - brown, back and limbs was scissorsed and the evenly distributed dot markings
Characteristic Difference
1. hibernation temperature comparison: bullfrog Warning temperature of 18 degrees C., at a temperature of a hibernating 14 15. degree. C. while the frog is the united states of hibernation period and critical temperature of 10 C., and 5 - 8. degree. C., both the temperature difference is 7 - 8
c I stood on the downstream of Yangtze River Area along the Yangtze, Aim at the climate feature of anagen c I stood on the downstream of Yangtze River Area along the Yangtze, Aim at the climate feature of anagen . American Bullfrog Rana catesbeiana compared to one - month extension of the left and right, thereby shortening the cultivation cycle American Bullfrog Rana catesbeiana compared to one - month extension of the left and right, thereby shortening the cultivation cycle .
, in particular, American Bullfrog locally plastic greenhouse cultivation, it is unnecessary to warm the , in particular, American Bullfrog locally plastic greenhouse cultivation, it is unnecessary to warm the . also occurs in the absence of a state of hibernation, the bullfrog was built, still to be hibernating around 70 days. The resistance comparison:American Bullfrog resistance far in excess of the bullfrog, the frogs are fragile skin disease, red leg disease, liver diseases, etc. Also the Chinese resistance
bullfrog to breed nearly 40 - year history, the frog is the united states in 1987 and was first introduced, its advantages are obvious in species, immune function is not yet degraded bullfrog to breed nearly 40 - year history, the frog is the united states in 1987 and was first introduced, its advantages are obvious in species, immune function is not yet degraded . 3. The growth rate: according to our test, in the same case, the frog is the united states having a higher growth rate than cattle farmland, especially the larval stage, rapid growth of
weight reached 400 grams, the growth rate has been lowered, the maximum size is only about 800 grams /;The bullfrogs trump to larval period of slow growth, reached only after a 75 g /, wax, and the maximum size of 1500 g / weight reached 400 grams, the growth rate has been lowered, the maximum size is only about 800 grams /;The bullfrogs trump to larval period of slow growth, reached only after a 75 g /, wax, and the maximum size of 1500 g / . 4. Habit: American Bullfrog Rana catesbeiana living habits of Florida softshell turtle (Apalone ferox) are similar, but the frog is the united states to be lazy, jumping ability, movement is little, easy management, reward high
bullfrog is bad - tempered, leaping and punching ability strong, breeding management and on the prevention of the difficulty of bullfrog is bad - tempered, leaping and punching ability strong, breeding management and on the prevention of the difficulty of .
Cage Culture Method
Bullfrog Rana catesbeiana body large, fleshy, grows fast, progenitive rate is high, is now the world's most suitable role for the carnivorous frogs, bullfrogs are only due to the feeding activity of small animals, feed for aquaculture development problem is always posed a major challenge to the bullfrog, Rana catesbeiana rearing technology introduction below, Bullfrog Rana catesbeiana body large, fleshy, grows fast, progenitive rate is high, is now the world's most suitable role for the carnivorous frogs, bullfrogs are only due to the feeding activity of small animals, feed for aquaculture development problem is always posed a major challenge to the bullfrog, Rana catesbeiana rearing technology introduction below, . reference cage is carried out will be in fast growth stage of bullfrogs in special cages that inner core with the feed instrument, will be filling the stomach with artificial diets of frog Rana reference cage is carried out will be in fast growth stage of bullfrogs in special cages that inner core with the feed instrument, will be filling the stomach with artificial diets of frog Rana .
in homes, the farmed according to economic conditions and the herd size, bullfrog rearing premises can be divided into year - round production and seasonal production type in homes, the farmed according to economic conditions and the herd size, bullfrog rearing premises can be divided into year - round production and seasonal production type . anniversary production type of frog applied full manual control of the environmental conditions,break the bullfrog hibernating and other adverse weather conditions on the growth of bullfrog brings the adverse effect on the building should take account of the summer that is helpful for ventilation, but also to guarantee the winter heating season anniversary production type of frog applied full manual control of the environmental conditions,break the bullfrog hibernating and other adverse weather conditions on the growth of bullfrog brings the adverse effect on the building should take account of the summer that is helpful for ventilation, but also to guarantee the winter heating season .
production type of frog Rana homes only in the growing season is simple to use, may be a pergola type to do as they are waterproof, sunscreen can production type of frog Rana homes only in the growing season is simple to use, may be a pergola type to do as they are waterproof, sunscreen can . cages for bullfrog rearing cages that are composed of three parts: a support bracket;2, the water tank;3, Rana cage cages for bullfrog rearing cages that are composed of three parts: a support bracket;2, the water tank;3, Rana cage .
such a simpler structure and lower manufacturing material is preferably a hard plastic, there is no condition can also be carried with the timber to make such a simpler structure and lower manufacturing material is preferably a hard plastic, there is no condition can also be carried with the timber to make . need attention: 1, each cage shall be the length of the frog Rana of the structure, each frame of the cage tiers arranged Frog Rana homes should vary with the height of the space, the ventilation conditions and the size of the operator by need attention: 1, each cage shall be the length of the frog Rana of the structure, each frame of the cage tiers arranged Frog Rana homes should vary with the height of the space, the ventilation conditions and the size of the operator by .
2, Rana cage in a tank, preferably with a small piece of wood or other items that are a little cushion up, away from the groove bottom of the 2 - 3 cm long, while ensuring that the frog cage depth of immersion in 3 - 5 centimeters above 2, Rana cage in a tank, preferably with a small piece of wood or other items that are a little cushion up, away from the groove bottom of the 2 - 3 cm long, while ensuring that the frog cage depth of immersion in 3 - 5 centimeters above . 3, each cage frog in each of the cages should be of moderate size, accommodating up to 250 grams of the frog between 6 and 8 only for such 3, each cage frog in each of the cages should be of moderate size, accommodating up to 250 grams of the frog between 6 and 8 only for such .
,In operation can both save time and which does not affect the growth of frog ,In operation can both save time and which does not affect the growth of frog . feed formulation and processing requirements of Captive Bullfrog feed bullfrog must first meet the nutrition needs, i.e.: about 35% crude protein, crude fat, crude protein and can be used as a material for more than 60 per cent from single - celled protein or animal protein fodder is also added in L - lysine, methionine and other amino acids which are essential for
Cage Culture
Net - cage of the high - density high - yielding frog cultivating technology of stereoscopic contents is to use manure, drum or the like cultivating earthworms, yellow mealworms, maggot, earthworm feeding box such as bullfrogs, cages were located in the fish pond, frog, worm casts may be fertile enough fish, which method has low cost, predating, breeding density, fast growth of bullfrog, manageable, and a high comprehensive benefits Net - cage of the high - density high - yielding frog cultivating technology of stereoscopic contents is to use manure, drum or the like cultivating earthworms, yellow mealworms, maggot, earthworm feeding box such as bullfrogs, cages were located in the fish pond, frog, worm casts may be fertile enough fish, which method has low cost, predating, breeding density, fast growth of bullfrog, manageable, and a high comprehensive benefits . .
which concrete measures were the following (1) is provided for manufacturing net cage cultivating bullfrog in the cage equipment is required to have good water permeability of the ventilation, which can be generally made of plastic or of a window or a suture, the cage is sized and shaped to be made from place to place,generally horizontally - long shape is good, the volume is not more than 10 m3, the webs are stitched after Bamboo or wood bundling available rack box and is secured thereon, should be well padded which concrete measures were the following (1) is provided for manufacturing net cage cultivating bullfrog in the cage equipment is required to have good water permeability of the ventilation, which can be generally made of plastic or of a window or a suture, the cage is sized and shaped to be made from place to place,generally horizontally - long shape is good, the volume is not more than 10 m3, the webs are stitched after Bamboo or wood bundling available rack box and is secured thereon, should be well padded . in the pond in the net cages, the box in the water at 30 cm of foam buoyancy or bandaging material, in order to ensure the stability of the tank, and on the banks with the rope pulling against high winds blowing in the pond in the net cages, the box in the water at 30 cm of foam buoyancy or bandaging material, in order to ensure the stability of the tank, and on the banks with the rope pulling against high winds blowing .
(2) the stocking density for cage culture bullfrog should make full use of the water tank, can be carried out. The high density, generally the resonable density is 15: 300 - 500 - square - meter python shake the tail, on the one hand for young bullfrogs, 50 to 200 g per square metre only,Adult frogs 80 100 bullfrogs net cage after release depends on the growth speed in time for the big small frog binning classification, to avoid mutual cannibalism resulting in unnecessary loss of bullfrogs net cage after release depends on the growth speed in time for the big small frog binning classification, to avoid mutual cannibalism resulting in unnecessary loss of .
(3) and through rational feeding and rational application of Miao people in the box after the frog, the frog is contingent on the case size and the number of bins in a set or plurality of bait tray (3) and through rational feeding and rational application of Miao people in the box after the frog, the frog is contingent on the case size and the number of bins in a set or plurality of bait tray . daily feeding amount should be in accordance with the size of the frog, the change of weather and water temperature determined to within one hour of the finish is usually daily feeding amount should be in accordance with the size of the frog, the change of weather and water temperature determined to within one hour of the finish is usually .
case feeding twice a day, from 9 a.m. to 10 p.m. and from 5 to 6 when each time (4) preventing sterilization due to stocking density for cage culture when big bullfrog, Rana in the cluster,So our disease prevention disinfection work, typically every 10 days with a concentration of ppm bleach solution applied on the inlet line disinfection is splashed.
Distribution In China
Bullfrog almost throughout the south of Beijing in China, including Taiwan, Tibet, Hainan, Hong Kong and Macao, shall ensure that there lie Bullfrog almost throughout the south of Beijing in China, including Taiwan, Tibet, Hainan, Hong Kong and Macao, shall ensure that there lie . diffusion effects and causes problems of: eating has been widely introduced around the world, was introduced to China in 1959 diffusion effects and causes problems of: eating has been widely introduced around the world, was introduced to China in 1959 .
bullfrog, strong adaptability and wide range, but few enemies, long life, high reproducibility, has significant competitive edge, easy intrusion and diffusion bullfrog, strong adaptability and wide range, but few enemies, long life, high reproducibility, has significant competitive edge, easy intrusion and diffusion . native amphibians face extinction and reduce risk, even that has gone to the bio - diversity, such as Dianchi Lake of local fish,Meanwhile, some insect population is also a threat to the very existence of the native amphibians face extinction and reduce risk, even that has gone to the bio - diversity, such as Dianchi Lake of local fish,Meanwhile, some insect population is also a threat to the very existence of the .
early breeding and management method incorrectly are main reasons for their diffusion early breeding and management method incorrectly are main reasons for their diffusion . domestic trade and consumption in the absence of SALW, the animals engaged in long - distance and this phenomenon has universal domestic trade and consumption in the absence of SALW, the animals engaged in long - distance and this phenomenon has universal .
control methods: the management should be strengthened, including the bullfrog breeding license management, domestic trade and trafficking of the escape prevention and control measures on the restaurant business, lest the intrusion range is further widened by control methods: the management should be strengthened, including the bullfrog breeding license management, domestic trade and trafficking of the escape prevention and control measures on the restaurant business, lest the intrusion range is further widened by . while changing the feeding methods, by free - range instead of captive while changing the feeding methods, by free - range instead of captive .
tadpole stage is carried out in the ponds, treatment to control their population by tadpole stage is carried out in the ponds, treatment to control their population by . positive propaganda and acquisition, capture and consume the resources during the study period,to control their natural habitat in the number of positive propaganda and acquisition, capture and consume the resources during the study period,to control their natural habitat in the number of .
Hot Events
US Flood Threaten Native Frog
In October 2014, the U.S. Geological Survey biologist Adam juridico - showing, American bullfrogs spread disaster, northwest along the Yellowstone River in Montana, and at the threat to native frogs from 2010 to 2013, Montana bullfrog breeding grounds of the number has increased almost threefold, reaching as many as 45 from 2010 to 2013, Montana bullfrog breeding grounds of the number has increased almost threefold, reaching as many as 45 .
researchers have found systemic 30 cm of the bullfrog researchers have found systemic 30 cm of the bullfrog . Montana and federal agencies began trying to put the bullfrog slaughtered on its implementation of in - situ clean, but the number of bullfrogs in so much that they struggle to cope with the after, this effort to abandon Montana and federal agencies began trying to put the bullfrog slaughtered on its implementation of in - situ clean, but the number of bullfrogs in so much that they struggle to cope with the after, this effort to abandon .
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