Introduction
Freshwater lobster, is called Klebhomarus or lobster, lobster, red shrimp Freshwater lobster, is called Klebhomarus or lobster, lobster, red shrimp . The shrimp native to the United States during World War II from Japan to China, is now widely distributed in the mid - lower Yangtze The shrimp native to the United States during World War II from Japan to China, is now widely distributed in the mid - lower Yangtze .
The Genus temperate freshwater shrimp, strong adaptability, high fecundity, feeding habits is miscellaneous, fast - growing, disease - resistant, pressure - resistant and anti - hypoxia and losing water, the number of hours is not death The Genus temperate freshwater shrimp, strong adaptability, high fecundity, feeding habits is miscellaneous, fast - growing, disease - resistant, pressure - resistant and anti - hypoxia and losing water, the number of hours is not death . tender shrimp meat flavor, rich nutrition, including 8 kinds of essential amino acids, while relatively low in fat, and contains more tropomyosin and paramyosin, that the higher tender shrimp meat flavor, rich nutrition, including 8 kinds of essential amino acids, while relatively low in fat, and contains more tropomyosin and paramyosin, that the higher .
are very popular with consumers, with a growing number of exports, sales and prices continue to rise,breeding prospects and are optimistic about the benefits of are very popular with consumers, with a growing number of exports, sales and prices continue to rise,breeding prospects and are optimistic about the benefits of .
Basic Habits
freshwater; broad life in freshwater lakes, rivers, ponds, gullies and paddy fields and other waters, the benthic organisms, plankton and aquatic weed is a variety of suitable food, grow well in these waters in freshwater; broad life in freshwater lakes, rivers, ponds, gullies and paddy fields and other waters, the benthic organisms, plankton and aquatic weed is a variety of suitable food, grow well in these waters in . juvenile shrimp live in shallow waters or poolside, burrowing, aquatic weed sometimes are holed up in the gravel of the lower regions, usually dig cave shrimp in a large water surface Zhou An clay more swamp reeds and clumps of beach between Hebei and Shandong, shrimp. Hit the generally circular, downwardly extends to a depth of 30 cm, and the meandering direction is not a freshwater lobster
perching sites often seasonal migration of grain boundaries in the spring and the water temperature rises, more shrimp in shallow waters activities; summer is not cause by high temperature when it moved to the deep water;The hole's winter in perching sites often seasonal migration of grain boundaries in the spring and the water temperature rises, more shrimp in shallow waters activities; summer is not cause by high temperature when it moved to the deep water;The hole's winter in . freshwater lobster molt, growth, and reproduction also in caves, in case we've been hurt, and the shrimp - Yam is afraid of light, the faint light or dark when the rain season freshwater lobster molt, growth, and reproduction also in caves, in case we've been hurt, and the shrimp - Yam is afraid of light, the faint light or dark when the rain season .
crawled out of caves, freshwater lobster also often come onto land to the activities of the crawled out of caves, freshwater lobster also often come onto land to the activities of the . shrimp and endure hunger, general Hunger 3 ~ 5 days; in autumn, typically for 20 ~ 30 days with no food nor shrimp and endure hunger, general Hunger 3 ~ 5 days; in autumn, typically for 20 ~ 30 days with no food nor .
starve feeding and was in the range of 25 - 30 DEG C; the temperature is below 15.d egree. C. The following activities weaken as the temperature below 10 DEG C or above 35 C. Feeding is obviously reduced; and the temperature of 8 DEG C below the over - wintering period,stop eating the shrimp ( freshwater lobster's average life of 20 months, while the female has a life of 24 months freshwater lobster's average life of 20 months, while the female has a life of 24 months .
freshwater lobster is generally at the end of October to March of the next year between those of the hatching eggs, different waters for mating time and premature mating often immature ova, the ova is too late to aging freshwater lobster is generally at the end of October to March of the next year between those of the hatching eggs, different waters for mating time and premature mating often immature ova, the ova is too late to aging . mating and the suitable temperature is 22 to 25. degree. C., preferably not the fishing season, it is important to let the eggs hatch, the offspring of
freshwater lobster in spring and summer, mating, spawning year 3 ~ 4 times, the general length of 7 ~ 10 cm and weighs 15 to 30 grams of shrimp, eggs is 220 - 270, depending on body size, freshwater lobster in spring and summer, mating, spawning year 3 ~ 4 times, the general length of 7 ~ 10 cm and weighs 15 to 30 grams of shrimp, eggs is 220 - 270, depending on body size,. eggs was a significant disparity in the normal case, After mating and oviposition of berried shrimp is required to have 1 ~ 2 months incubation of embryonic development) process (i.e., desired consumption of great physical strength, and thus to strengthen the berried shrimp nutrition and breeding
Shrimp with eggs hatch and the suitable temperature is 22 to 27 DEG C, the incubation time of 6 ~ 10 weeks Shrimp with eggs hatch and the suitable temperature is 22 to 27 DEG C, the incubation time of 6 ~ 10 weeks . shrimp postlarvae before clearing the disinfection, the water inflow for filtration, and then to cultivate the natural biological organic fertilizer for shrimp seedling feeding shrimp postlarvae before clearing the disinfection, the water inflow for filtration, and then to cultivate the natural biological organic fertilizer for shrimp seedling feeding .
general shrimp postlarvae when stocking density of larvae is 15 to 20 million, and by using "soymilk" cultivated plant, the stocking density to be within the range of 16 to 18 million general shrimp postlarvae when stocking density of larvae is 15 to 20 million, and by using "soymilk" cultivated plant, the stocking density to be within the range of 16 to 18 million .
Topographical Features
lobster of the cephalothorax is coarse, hard outer skin and bright body colour, short abdomen, snout - vent length (SVL) is generally 20 cm - 40 cm, weighs 0.5 kg up and down, as in the largest, heaviest 5 kilograms, is known as lobster 5 kilograms, is known as lobster .
tiger body in the form of a coarse cylindrical, somewhat flattened dorso - ventrally, and the carapace developed, Chien - Hou is thorny, the leading edge of the central pair of powerful eye on a ratchet, with closure of the gill chamber tiger body in the form of a coarse cylindrical, somewhat flattened dorso - ventrally, and the carapace developed, Chien - Hou is thorny, the leading edge of the central pair of powerful eye on a ratchet, with closure of the gill chamber . abdomen is short and coarse, the backward part of the ventral surface of the curl, so that the width of the short tail fan abdomen is short and coarse, the backward part of the ventral surface of the curl, so that the width of the short tail fan .
lobster has a hard, segmented lobster has a hard, segmented . breast with five pairs of legs and wherein one or more pairs of pincers is often deformed,the side of the claws is normally greater than on the opposite side of the breast with five pairs of legs and wherein one or more pairs of pincers is often deformed,the side of the claws is normally greater than on the opposite side of the .
eye may be located on the activities of the eyestalk eye may be located on the activities of the eyestalk . .
abdomen has two pairs of long antennae - like Long, with pairs of swimmerets abdomen has two pairs of long antennae - like Long, with pairs of swimmerets . tail fin for swimming; the tail and abdomen for the bending of the movable body can be extended forward tail fin for swimming; the tail and abdomen for the bending of the movable body can be extended forward .
lobsters of the first three pairs of pereiopods have claw, on the first pair of legs of the claw pole long lobsters of the first three pairs of pereiopods have claw, on the first pair of legs of the claw pole long . covering the head and breast of the front of the carapace of a sword or a kiss covering the head and breast of the front of the carapace of a sword or a kiss .
right frontal and left claw crayfish: Lobsters have two different kinds of crayfish, a crayfish, is a broken, is a spiny chela. If you yourself observed a lobster, you will find its pincers stabbing in crushed the right chela left If you yourself observed a lobster, you will find its pincers stabbing in crushed the right chela left .
soft shell and hard shell Atlantic lobster and the growth of the shell,The new shells are thin and soft soft shell and hard shell Atlantic lobster and the growth of the shell,The new shells are thin and soft . in Canada, lobster fishing season to try to stagger in surrogate eggshell of the summer, while the capture of most of Canada's Atlantic lobsters are all hard - shelled lobster, petit in Canada, lobster fishing season to try to stagger in surrogate eggshell of the summer, while the capture of most of Canada's Atlantic lobsters are all hard - shelled lobster, petit .
: petit activities. With the growth of the lobster's life lobsters in the first year of life, it will experience 10 times, petit lobsters in the first year of life, it will experience 10 times, petit .
lobster will continue experiencing about once a year until its eggshell of the activity of the mature mature lobster will continue experiencing about once a year until its eggshell of the activity of the mature mature . lobster may only once every three years, petit lobster may only once every three years, petit .
lobsters grow to 1 pound () may be placed on the market needs 6 - 8 year lobsters grow to 1 pound () may be placed on the market needs 6 - 8 year . lobster in warm water to grow more rapidly, and in a shorter time length to the specifications listed lobster in warm water to grow more rapidly, and in a shorter time length to the specifications listed .
limb regeneration:Left her own limbs of lobsters may confuse predators, including crayfish can be discarded limbs, legs, antennae, etc limb regeneration:Left her own limbs of lobsters may confuse predators, including crayfish can be discarded limbs, legs, antennae, etc . the lobster will sometimes also due to some unknown factor discard PERKINS the lobster will sometimes also due to some unknown factor discard PERKINS .
monocoque nutrition: hard - shelled lobster is thought to be the most delicious, and is proven to be the most nutritious monocoque nutrition: hard - shelled lobster is thought to be the most delicious, and is proven to be the most nutritious . soft - shell lobsters will molt carapaces when lost some nutrition and absorb large amounts of water soft - shell lobsters will molt carapaces when lost some nutrition and absorb large amounts of water .
is the most healthy of consumers choosing "at" natural color: lobster of natural color from bluish green to rust - brown, and blue - or white - shell lobsters is the most healthy of consumers choosing "at" natural color: lobster of natural color from bluish green to rust - brown, and blue - or white - shell lobsters . (in addition to the white outer - shell lobsters) various color of cooked lobster, all will turn red.Different color of lobster and shrimp are also delicious
multi - color entrails: lobster to be substantially white multi - color entrails: lobster to be substantially white . but when eating lobster and see that several of the other color but when eating lobster and see that several of the other color .
lobster next to a dark red lobster is female lobster seed lobster next to a dark red lobster is female lobster seed . textured portion is green tomalley, a lot of people very like the tomalley, lobster and think this is also the unique taste of a part of the textured portion is green tomalley, a lot of people very like the tomalley, lobster and think this is also the unique taste of a part of the .
occurs frequently as a white foamy substance is the lobster's blood and fat, these edible, occurs frequently as a white foamy substance is the lobster's blood and fat, these edible, . cannibalism: since the lobster's gut and discovered in lobster shell,lobster once misidentified the cannibalism of actual biological cannibalism: since the lobster's gut and discovered in lobster shell,lobster once misidentified the cannibalism of actual biological .
these shrimp lobster is eaten in surrogate eggshell of himself in the process of discarding the old shrimp these shrimp lobster is eaten in surrogate eggshell of himself in the process of discarding the old shrimp . although lobsters are also members of the animal, but it is more like fresh food, including fish, crabs, lobster and sea urchin although lobsters are also members of the animal, but it is more like fresh food, including fish, crabs, lobster and sea urchin .
teeth: lobster bear teeth, but its teeth in its mouth but not a long long time in the stomach to sleep teeth: lobster bear teeth, but its teeth in its mouth but not a long long time in the stomach to sleep . lobster: simply let their lobster upside down on the back for a few minutes lobster: simply let their lobster upside down on the back for a few minutes .
Some people they like in boiled lobster so dry Some people they like in boiled lobster so dry . front foot taste buds: in addition to the mouth of a lobster leg also has a taste organ front foot taste buds: in addition to the mouth of a lobster leg also has a taste organ .
Distribution Range
Lobster distributed in all continents, generally inhabit warm seas of the shore or offshore subsea Lobster distributed in all continents, generally inhabit warm seas of the shore or offshore subsea . Chinese - made lobster at least in the more Chinese - made lobster at least in the more .
8: Chinese lobster, olive, as the eastern coast of Guangdong province, and the yield is also large; Panulirus homarus, color shape is similar to the lobsters in the composite family, native to South China coastal area; Panulirus penicillatus, color shape were the same on both, native to Hainan Island and the Xisha Islands; Panulirus ornatus, the beautiful multicolored patterns, which may be up to a maximum of 4 kg to 5 kg, Zhejiang Zhoushan Archipelago area, the yield - 8: Chinese lobster, olive, as the eastern coast of Guangdong province, and the yield is also large; Panulirus homarus, color shape is similar to the lobsters in the composite family, native to South China coastal area; Panulirus penicillatus, color shape were the same on both, native to Hainan Island and the Xisha Islands; Panulirus ornatus, the beautiful multicolored patterns, which may be up to a maximum of 4 kg to 5 kg, Zhejiang Zhoushan Archipelago area, the yield - . There is, furthermore, Japanese spiny lobster, Panulirus versicolor, less spiny lobster, Panulirus longipes longipes, etc.But rarely yield
Homarus americanus (Homarus americanus) Queliang) and Norway lobsters (norvegicus) value is highest, often with live lobsters in the form of a commercially available; edible part of the muscles in the abdomen and chelae Homarus americanus (Homarus americanus) Queliang) and Norway lobsters (norvegicus) value is highest, often with live lobsters in the form of a commercially available; edible part of the muscles in the abdomen and chelae . true lobsters in the poles of all oceans and in the deeper waters where true lobsters in the poles of all oceans and in the deeper waters where .
European lobster (Homarus, i.e. European crayfish lobster) greenish, found in the European Atlantic coast and Mediterranean rocky seabed crayfish lobster (Homarus capensis Cape) in South Africa the surrounding waters,body length of up to 10 - 13 cm long, with no commercial value crayfish lobster (Homarus capensis Cape) in South Africa the surrounding waters,body length of up to 10 - 13 cm long, with no commercial value .
Growth And Reproduction
Mature females molt after spawning mating, the fertilized eggs by clamping of female pleopod in between, the egg circular, orange Mature females molt after spawning mating, the fertilized eggs by clamping of female pleopod in between, the egg circular, orange . female body over a period of about 5 years of development, i.e., mature, ready to spawn
summer males the sperm into the female body, and the fertilization to occur to the spring party summer males the sperm into the female body, and the fertilization to occur to the spring party . Each female can spawn 3, some 2,000 or more, after the female egg is attached to the body of an item of inter to swimmers. red flag have been on foot until months after the larva hatched
larval body length of 1 cm, a free - swimming for about 12 days, then sink to the bottom of the tank, and stay larval body length of 1 cm, a free - swimming for about 12 days, then sink to the bottom of the tank, and stay . this lobster of some 50 - year lifetime for this lobster of some 50 - year lifetime for .
Dogfish, skate and most fish hunt for lobster larvae Dogfish, skate and most fish hunt for lobster larvae . adult lobsters' main predators are human adult lobsters' main predators are human .
Food Therapy Value
Nutritive Value
lobster meat and abundant nutrition, and its meat per hectogram containing protein 18. 9 grams, nicotinic acid (4.3 mg, vitamin E, 58 mg, 2.79 mg, selenium 39. 36 micrograms, other ingredients such as sulfonyl, phosphorus, iron and the like, the content is no less wherein there is a very important nutrients for the astaxanthin is present mainly in the shrimp and shrimp in yellow (red), and a content of about 800PPM, astaxanthin is a powerful antioxidant, generally for cooking, eating a lot of it - - lost wherein there is a very important nutrients for the astaxanthin is present mainly in the shrimp and shrimp in yellow (red), and a content of about 800PPM, astaxanthin is a powerful antioxidant, generally for cooking, eating a lot of it - - lost .
hard - shelled lobster belonging to low - fat low - carbohydrate, high protein food hard - shelled lobster belonging to low - fat low - carbohydrate, high protein food . actually,Canadian lobster contained in saturated fatty acids, cholesterol and calorie content than many popular low fat food such as pork, beef or chicken in white) lower actually,Canadian lobster contained in saturated fatty acids, cholesterol and calorie content than many popular low fat food such as pork, beef or chicken in white) lower .
Every Canadian lobsters of the calorie content of less than 100 (89% of the calories come from protein), Canadian lobsters are various lovers including dieting (slimming) the overwhelming choice of Every Canadian lobsters of the calorie content of less than 100 (89% of the calories come from protein), Canadian lobsters are various lovers including dieting (slimming) the overwhelming choice of .
Cooking Method
folk eat lobster, steamed or boiled after shelling; fleshing; dipped in ginger and vinegar flavouring food folk eat lobster, steamed or boiled after shelling; fleshing; dipped in ginger and vinegar flavouring food . the hotel, restaurant, it's much more complicated and often a knife into the meat after molding will be cooked, the dishes of Guangdong, Fujian, Hainan, such as" lobster cooked in broth, "" Fried Lobster Ball, "" Garlic Style Lobster " the hotel, restaurant, it's much more complicated and often a knife into the meat after molding will be cooked, the dishes of Guangdong, Fujian, Hainan, such as" lobster cooked in broth, "" Fried Lobster Ball, "" Garlic Style Lobster ".
lobster etc due to the dispersion of the nervous system, it is immersed in the hot water does not feel pain lobster etc due to the dispersion of the nervous system, it is immersed in the hot water does not feel pain . lobster no vocal cords, also not like the rumors would scream lobster no vocal cords, also not like the rumors would scream .
cooking lobster when people heard the sound of the steam is discharged from the shell when the cooking lobster when people heard the sound of the steam is discharged from the shell when the . sound is to be noted that, prior to cooking,Preferably it is possible to remove the guts and gills of the lobster Mao sound is to be noted that, prior to cooking,Preferably it is possible to remove the guts and gills of the lobster Mao .
removed the intestines of the lobsters is lobster tail with 3 Credits, slightly with some force, the intermediate piece of the Beetle (along with the shrimp intestines) out, remove the gills removed the intestines of the lobsters is lobster tail with 3 Credits, slightly with some force, the intermediate piece of the Beetle (along with the shrimp intestines) out, remove the gills . Mao's method is to use scissors, the nail heads of the gills underneath all the hair cut off Mao's method is to use scissors, the nail heads of the gills underneath all the hair cut off .
like this, you can have all the lobsters were clean:) like this, you can have all the lobsters were clean:).
Dietotherapy Role
lobster meat protein, which contains more tropomyosin and paramyosin lobster meat protein, which contains more tropomyosin and paramyosin . Therefore, eating lobsters can tonifying yang, nourishing yin, invigorating stomach function. It can also raise the sports endurance
lobster crustacean Xiake more than other red lobster crustacean Xiake more than other red . This is because they contain more iron, calcium and carotene This is because they contain more iron, calcium and carotene .
lobster shell and the meat of the work is very beneficial to human health, it has curative effect on various diseases lobster shell and the meat of the work is very beneficial to human health, it has curative effect on various diseases . the crab, and shrimp shell fermented fructus gardeniae powder, can be treated neuralgia, rheumatism, polio, Epilepsy, Gastropathy and gynecopathy etc, The USA uses lobster shell manufactured according to the relevant pharmaceutical hemostatics the crab, and shrimp shell fermented fructus gardeniae powder, can be treated neuralgia, rheumatism, polio, Epilepsy, Gastropathy and gynecopathy etc, The USA uses lobster shell manufactured according to the relevant pharmaceutical hemostatics .
Embalmed in books, lobster and tastes sweet and salty, and warm in property,invigorating kidney and supporting yang, nourishing yin and invigorating functions of promoting blood circulation and cure impotence, neurasthenia, and pain, etc.
Other Uses
lobster very important astaxanthin for scientific discovery of the most potent antioxidants, the deeper the color of the description of the astaxanthin content lobster very important astaxanthin for scientific discovery of the most potent antioxidants, the deeper the color of the description of the astaxanthin content . is widely used in cosmetics, food additives, drugs and is widely used in cosmetics, food additives, drugs and .
Osaka University, Japan, the scientists found, shrimp of astaxanthin helps eliminate the time difference resulting from the reaction of a "jetlag" Osaka University, Japan, the scientists found, shrimp of astaxanthin helps eliminate the time difference resulting from the reaction of a "jetlag" .
Wash Shrimp Attention
Note: Do not use "shrimp powder" on the lobster cleaning Note: Do not use "shrimp powder" on the lobster cleaning . Shanghai Food and Drug Authority had issued an urgent notice, prohibiting the use of illegal food additives and wash the shrimp powder, washing powder is mainly some shrimp aquaculture market stallholder to lobster decontamination, the main ingredient is citric acid and sulfite Shanghai Food and Drug Authority had issued an urgent notice, prohibiting the use of illegal food additives and wash the shrimp powder, washing powder is mainly some shrimp aquaculture market stallholder to lobster decontamination, the main ingredient is citric acid and sulfite .
although the two ingredients are legal; the food additives, but the powder used to clean in there are a lot of the separated components, the use of this product are giving consumers to health although the two ingredients are legal; the food additives, but the powder used to clean in there are a lot of the separated components, the use of this product are giving consumers to health .
Breeding Technique
Freshwater crayfish gram crayfish, is a freshwater economic shrimps, native to North America in 1918 and from the United States and Japan, and introduced to china in 1929 Freshwater crayfish gram crayfish, is a freshwater economic shrimps, native to North America in 1918 and from the United States and Japan, and introduced to china in 1929 . crayfish and wide adaptability, high fecundity, with natural population development soon, after decades of diffusion, has formed a nationwide distribution crayfish and wide adaptability, high fecundity, with natural population development soon, after decades of diffusion, has formed a nationwide distribution .
because of the small lobster and delicious, welcomed because of the small lobster and delicious, welcomed . driven by local people started fishing for crayfish, superstrength, under environmental conditions of the shrimp production continue to fall, the market outstrips supply, prices have continued to rise (currently having the pool price is 8. 5 yuan / 500 g),artificial breeding prospect
But we must also pay attention to, freshwater crayfish have very strong survivability, likes to camp in a cave on the pond bunds so the damage is very serious, and this is something we shouldn't be in farming problems. This is a list of the relevant crawfish farming techniques are introduced: crawfish farming techniques are introduced:.
Biological Features
crawfish in classification belongs to Arthropoda Crustacea Decapoda Malacostraca crayfish Section crawfish in classification belongs to Arthropoda Crustacea Decapoda Malacostraca crayfish Section . it the requirements of water quality is not high, strong vitality and active force of the water temperature of 10 to 30. degree. C., pH 6. 5 ~ 9. 0 of the waters of the People's Republic of China may, on the normal growth and development, and optimal pH of 7. 5 ~ 8. 5
rapidly growth, at a suitable temperature and sufficient supply, over a period of 2 months of culture, specifications of commodity rapidly growth, at a suitable temperature and sufficient supply, over a period of 2 months of culture, specifications of commodity . crayfish of growth is also accompanied by a molt, the molt 11 times generally reach sexual maturity, sexually mature individuals may continue to moult growth crayfish of growth is also accompanied by a molt, the molt 11 times generally reach sexual maturity, sexually mature individuals may continue to moult growth .
whose life is not long, approximately 1 year whose life is not long, approximately 1 year . crayfish prefer to live in shallow water body,aquatic vegetation of wetlands, lakes and rivers within that, like a burrowing crayfish prefer to live in shallow water body,aquatic vegetation of wetlands, lakes and rivers within that, like a burrowing .
cave is located above the water of the pond is about 20cm, the depth of 60 cm to 1 m, within a thin layer of water, in order to preserve the humidity and mud at the entrance of the cave, generally, in a cap sealed to reduce moisture egress from cave is located above the water of the pond is about 20cm, the depth of 60 cm to 1 m, within a thin layer of water, in order to preserve the humidity and mud at the entrance of the cave, generally, in a cap sealed to reduce moisture egress from . crayfish bait is not high, the genus is omnivorous, feeding primarily on benthic detritus feeders, feeding on grasses, other aquatic animals in an aquaculture pond, preferring to eat the crab fed trash fish and mussel meat, when food was in short supply have a habit of fratricidal crayfish bait is not high, the genus is omnivorous, feeding primarily on benthic detritus feeders, feeding on grasses, other aquatic animals in an aquaculture pond, preferring to eat the crab fed trash fish and mussel meat, when food was in short supply have a habit of fratricidal .
Breeding Characteristics
Chang annual crawfish may propagate from may to september peak Chang annual crawfish may propagate from may to september peak . crayfish of the special reproduction, the reproduction process in most of the caves in the substrate, so that usual in the production of hard - to - see berried shrimp crayfish of the special reproduction, the reproduction process in most of the caves in the substrate, so that usual in the production of hard - to - see berried shrimp .
ovaries after mating in 2 ~ 5 months last maturation, ovulation and fertilization of the fertilized egg ovaries after mating in 2 ~ 5 months last maturation, ovulation and fertilization of the fertilized egg . is purplish, is adhered to the abdominal pleopods of setae on the abdomen of berried shrimp is often close to the water inside to keep the eggs in a wet state ( is purplish, is adhered to the abdominal pleopods of setae on the abdomen of berried shrimp is often close to the water inside to keep the eggs in a wet state (.
crayfish eggs are small, usually 100 - 700, with an average of 300 grain crayfish eggs are small, usually 100 - 700, with an average of 300 grain . hatching time is 14 ~ 24 days hatching time is 14 ~ 24 days .
crayfish larvae during puberty.does not require any external supply of nutrients, the newly hatched juveniles are required in shrimp abdominal stay about 10 days, Fang out of matrix too early if the conditions are not appropriate, in caves could survive for weeks without spending a penny when out of matrix too early if the conditions are not appropriate, in caves could survive for weeks without spending a penny when .
pond after filling, and prawn and shrimp from caves in the climb out of, the natural distribution in the pond, the shrimp will sometimes carry the larvae into the water, then release larvae pond after filling, and prawn and shrimp from caves in the climb out of, the natural distribution in the pond, the shrimp will sometimes carry the larvae into the water, then release larvae . crayfish Although eggs in small amounts, the hatching of the survival rate is very high dispersion of crayfish Although eggs in small amounts, the hatching of the survival rate is very high dispersion of .
crawfish breeding habits of the fingerling of limits to large - scale production, to the intensification of that negative impact of the crawfish breeding habits of the fingerling of limits to large - scale production, to the intensification of that negative impact of the .
Breeding Technique
1, pond pond selection in well - watered conditions, open ground, where the terrain is slightly inclined, a rectangle, preferably, 3 to 5 mu is good 1, pond pond selection in well - watered conditions, open ground, where the terrain is slightly inclined, a rectangle, preferably, 3 to 5 mu is good . depth 0. 7 ~ 1. 5 meters, is used in too deep
flat bottom sediment to loam with a good, hard on the slope and soil, a pond of water conservation, water level regulating water flat bottom sediment to loam with a good, hard on the slope and soil, a pond of water conservation, water level regulating water . Yi was plenty and fresh free from contamination, the dissolved oxygen at 4 mg / l or more, and the pH value of 7. 5 ~ 8. 5
water field shall have proper slope, and slope of 1: 2. 5, to facilitate foraging habitat for shrimps and crawfish escape capability is strong and must escape - proof facility construction escape capability is strong and must escape - proof facility construction .
usually took the form of a plastic film, plastic plate or mesh,along the ridge pool surrounded with bamboo or wood piles support surrounding an escape - proof, net sheet required in the upper lid 2 usually took the form of a plastic film, plastic plate or mesh,along the ridge pool surrounded with bamboo or wood piles support surrounding an escape - proof, net sheet required in the upper lid 2 . net, stocking (1) Preparation before clearing pool shrimp species stocked before 20 ~ 30 days, drain the pool water, exposure to sterilization, removal of excess sludge, the refurbished pool ridge, 75 kg per mu with quicklime or bleaching powder drug, thoroughly cleaning the pool disinfected net, stocking (1) Preparation before clearing pool shrimp species stocked before 20 ~ 30 days, drain the pool water, exposure to sterilization, removal of excess sludge, the refurbished pool ridge, 75 kg per mu with quicklime or bleaching powder drug, thoroughly cleaning the pool disinfected .
(2) fertilization shrimp pond before 10 days under 50 cm water, livestock and poultry manure composting ha) was 500 ~ 600 kg, and the Culture Rotifera, Cladocera and Copepoda in plankton, provide shrimp seedling of Palatable Bait (2) fertilization shrimp pond before 10 days under 50 cm water, livestock and poultry manure composting ha) was 500 ~ 600 kg, and the Culture Rotifera, Cladocera and Copepoda in plankton, provide shrimp seedling of Palatable Bait . fertilized for the first time, according to the color, pH value, transparency change,timely once topdressing fertilizer, the pH is maintained at a value of 7. 5 ~ 8. 5, cultivation of dark brown or greenish color, the transparency was 20 ~ 30 cm
(3) before the stocking of grass in the pond at the foot of the cusp around the ponds and planting a certain number of plants, the best choice of Vallisneria, Elodea, grass - planting area in 1 / 3 of the left and right along the pond bunds around (3) before the stocking of grass in the pond at the foot of the cusp around the ponds and planting a certain number of plants, the best choice of Vallisneria, Elodea, grass - planting area in 1 / 3 of the left and right along the pond bunds around . transplantation of Eichhornia crassipes, Alternanthera philoxeroides, width depends on the size of pond transplantation of Eichhornia crassipes, Alternanthera philoxeroides, width depends on the size of pond .
adventitious plants can serve as both the crayfish food from the website, which provide habitat for molting and environment, to decrease, the grass and the bamboo with enclosed, to prevent full expansion of the pool adventitious plants can serve as both the crayfish food from the website, which provide habitat for molting and environment, to decrease, the grass and the bamboo with enclosed, to prevent full expansion of the pool . simultaneously, may be in the pool in the erection of a mesh or a set of bamboo,plastic pipe, for example, as a roosting, moulting, a hiding place simultaneously, may be in the pool in the erection of a mesh or a set of bamboo,plastic pipe, for example, as a roosting, moulting, a hiding place .
(4) transplanting snail acre launch 300 kilograms of snails, on the one hand improves the quality of the pool water, and can be used as bait for crawfish (4) transplanting snail acre launch 300 kilograms of snails, on the one hand improves the quality of the pool water, and can be used as bait for crawfish . (5) is mounted to the inlet filter screen shall be fitted with a strainer, generally using 60 ~ 80 mesh sieve, preventing enemy organisms mixed (5) is mounted to the inlet filter screen shall be fitted with a strainer, generally using 60 ~ 80 mesh sieve, preventing enemy organisms mixed .
(6) mounting the anti - bird nets along the pond bunds to dilute the codend mesh installed central pond, and a width of about 4 - 5 meters, the center of the mesh above the water is about 2 ~ 3 meters thin wire to prevent waterfowl on crayfish invasion 3 (6) mounting the anti - bird nets along the pond bunds to dilute the codend mesh installed central pond, and a width of about 4 - 5 meters, the center of the mesh above the water is about 2 ~ 3 meters thin wire to prevent waterfowl on crayfish invasion 3 .,shrimp species stocking (1) due to the situation of crayfish culture amount of seed production has not reached the degree of industrialization, use of the spring stocking merchandise is not up to the specifications of the shrimp of the species, and put in a 50 - 100 kilogram for each acre, approximately 150 ~ 200 / kg ,shrimp species stocking (1) due to the situation of crayfish culture amount of seed production has not reached the degree of industrialization, use of the spring stocking merchandise is not up to the specifications of the shrimp of the species, and put in a 50 - 100 kilogram for each acre, approximately 150 ~ 200 / kg .
as stocking of commodity shrimps, mu amp 50 kg as stocking of commodity shrimps, mu amp 50 kg . (2) (A) the same precautions for stocking pond shrimp species specifications should be uniform, and once foot, catching the small fry to stay (2) (A) the same precautions for stocking pond shrimp species specifications should be uniform, and once foot, catching the small fry to stay .
great demand robust in physique, complete appendages great demand robust in physique, complete appendages . (B) are selected on a sunny winter morning stocking, the stocking choice on a sunny day in summer and autumn morning or on cloudy and rainly day,Avoid midday sun exposure from (B) are selected on a sunny winter morning stocking, the stocking choice on a sunny day in summer and autumn morning or on cloudy and rainly day,Avoid midday sun exposure from .
(C) before stocking shrimp species with 3% ~ 5% saline soak 10 minutes, the parasites and pathogens (C) before stocking shrimp species with 3% ~ 5% saline soak 10 minutes, the parasites and pathogens . (D) from the city of shrimp species, because of water over a long period of time, before stocking shrimp species in pond water within 1 minute of soaking, the lift resting 2 to 3 minutes, then immersed for 1 minute, repeated for 2 ~ 3 times, and let the shrimp species body surface and gill cavity to absorb moisture after re - stocking, in order to improve the survival rate of (D) from the city of shrimp species, because of water over a long period of time, before stocking shrimp species in pond water within 1 minute of soaking, the lift resting 2 to 3 minutes, then immersed for 1 minute, repeated for 2 ~ 3 times, and let the shrimp species body surface and gill cavity to absorb moisture after re - stocking, in order to improve the survival rate of .
(E) and bighead carp fingerling stocking, mu place 100 or so (E) and bighead carp fingerling stocking, mu place 100 or so . in order on the one hand we can use, increase yields and, on the other hand, use of silver carp and bighead carp in adjusting water in order on the one hand we can use, increase yields and, on the other hand, use of silver carp and bighead carp in adjusting water .
4,feedstuffs and feeding method (1) of the forage species of juvenile shrimps, in the stage of juvenile shrimp, rotifers, Cladocera, Copepoda and larval aquatic insects such as feeds 1. 5 ~ 3 cm of the juvenile period, throwing for breaking bait such as fish and other animal tissues were often observed, which is made of small particles); 5 ~ 8 cm in shrimp to bait and processing the size (such as carp, snail, mussel meat, earthworms and other animal offal cut into grains of broad bean size) before feeding; and food shrimp into the stage of animal feed and vegetable - based feed and the feeding of the bait may be slightly thicker total principle is: when the juvenile shrimp to animal - based, of plant - assisted;metaphase should gradually turn to the feeding rate of plant - based, and use a mix of animal bait; his last fed animal, it is known as" two fine, intermediate green " total principle is: when the juvenile shrimp to animal - based, of plant - assisted;metaphase should gradually turn to the feeding rate of plant - based, and use a mix of animal bait; his last fed animal, it is known as" two fine, intermediate green ".
(2) feeding the artificial feeding amount was calculated, the quantity of feed material is substantially dry shrimp weight 7% ~ 8%, 5% in weight of shrimps, prawns and weight 2% ~ 3%, and according to weather, water quality condition and shrimp foraging activities when suitably (2) feeding the artificial feeding amount was calculated, the quantity of feed material is substantially dry shrimp weight 7% ~ 8%, 5% in weight of shrimps, prawns and weight 2% ~ 3%, and according to weather, water quality condition and shrimp foraging activities when suitably . Continuous overcast and rainy weather or water quality that is so strong that it can be less, and the weather is suitable when the multi - fed; a large number of shrimp exuviation when less; feeding a molt after multi - fed; shrimp season less feeding,when multi - feeding of the normal growth of crayfish at night Continuous overcast and rainy weather or water quality that is so strong that it can be less, and the weather is suitable when the multi - fed; a large number of shrimp exuviation when less; feeding a molt after multi - fed; shrimp season less feeding,when multi - feeding of the normal growth of crayfish at night .
more foraging activity, and having to feed in a gluttonous habits more foraging activity, and having to feed in a gluttonous habits . throwing the feed going on every day, one in the afternoon to afternoon once, accounting for about a day feeding amount is 70%; the qualitative, quantitative, and the timing of feeding method for feeding selected throwing the feed going on every day, one in the afternoon to afternoon once, accounting for about a day feeding amount is 70%; the qualitative, quantitative, and the timing of feeding method for feeding selected .
typically takes place on the shore and shallow water, multi - point uniform feeding, feed shall be far away from the beach in the morning, evening dosing should be as close to typically takes place on the shore and shallow water, multi - point uniform feeding, feed shall be far away from the beach in the morning, evening dosing should be as close to . ponds can also be provided in the circumference of the bait station, in order to investigate the food ponds can also be provided in the circumference of the bait station, in order to investigate the food .
the case 5, the day - to - day management (1) establish a pool of patrol inspection system regularly feed consumption, crayfish,escape - proof facility, in the case of the case 5, the day - to - day management (1) establish a pool of patrol inspection system regularly feed consumption, crayfish,escape - proof facility, in the case of . (2) regulating and controlling water quality and water quality in shrimp ponds require fresh (2) regulating and controlling water quality and water quality in shrimp ponds require fresh .
Early to fertilizer, transparency is 25 cm on the left and right sides of the mid and late stage, where possible, clean the water and the addition of water, transparency kept in the range of 30 - 40 cm Early to fertilizer, transparency is 25 cm on the left and right sides of the mid and late stage, where possible, clean the water and the addition of water, transparency kept in the range of 30 - 40 cm . every 15 ~ 20 days once in water, with 1 / 3 water every 15 ~ 20 days once in water, with 1 / 3 water .
douse once every half month, limewater, quicklime for each mu of land is 8 ~ 10 kg douse once every half month, limewater, quicklime for each mu of land is 8 ~ 10 kg . but must keep the water level is unstable and fluctuating, lest affect shrimp spawning but must keep the water level is unstable and fluctuating, lest affect shrimp spawning .
(3) to strengthen the management of the habitat for molting and ponds were always more aquatic (3) to strengthen the management of the habitat for molting and ponds were always more aquatic . large shrimp exuviation are strictly forbidden to interfere,molt stage immediately after the increasing feed palatability and high - quality forage, is prevented from killing each other, promote the growth of large shrimp exuviation are strictly forbidden to interfere,molt stage immediately after the increasing feed palatability and high - quality forage, is prevented from killing each other, promote the growth of .
(4) preventing escape and preventing flood season to strengthen the inspection and quarantine, fleeing shrimp disease and predating. make clear the general work make clear the general work .
crayfish diseases less should be preferably less without drugs or medication, the Innocuous Breeding crayfish diseases less should be preferably less without drugs or medication, the Innocuous Breeding . 6, fishing fishing mainly for using in - mould cover, trapping, fishing, trapping large stay small, if each of the catching amount is very small, may suspend fishing 6, fishing fishing mainly for using in - mould cover, trapping, fishing, trapping large stay small, if each of the catching amount is very small, may suspend fishing .
