129809647024586250_62After breeding, the variety characteristics of pengze crucian carp 1 performances of dramatic change, growing faster than prior to breeding 50%, 249.8% faster than a normal growth of crucian carp and became China's first direct from twice the fine culture of ploidy breeding in wild Carassius auratus variety. Due to simple, fast growth of pengze crucian carp breeding, nutrition value of individual large, strong resistance, the higher the fine, Is now available in most parts of the country to promote culture and forming a complete fish breeding, larval and adult fish culture technologies, access to significant economic and social benefits. Pengze crucian carp is dark gray to black on the back, the abdomen gray, the fins are blue black, spindle-shaped. Head short, blunt kisses, mouth-side arc, lips thick, no, jaw slightly inclined upward. From the bottom of the mandibularGentle to the base of pectoral fins are curved, 2 handle tall pengze crucian carp in the eye during the first long. Straight outer edges of the dorsal fin, caudal fin fork light. Male pectoral fins than the individual tips long, ends up base of pelvic fins.
Females pectoral fins than blunt, not part of pelvic fins. For wide temperature of pengze crucian carp, Lake settlement of omnivorous fish, benthic life, live in sediment more fertilizer and grass lush habitats in shallow water andFeeding. It is to adapt to a wide range of water temperature, all the normal feeding and growth, optimal growth water temperature 25-30 degrees centigrade. Its physical and chemical factors such as changes in water quality and low dissolved oxygen have a lot of patience. In the seed stage to feed on planktonic fauna and flora, fish feeding and adult stages of organic debris and artificial feed, aquatic, aquatic insects and other plant debris. In natural waters, JohnZe fastest growth of crucian carp with the same weight can be up to 128 grams, weight gain for the year for the second year is growing at around 50%.
Under artificial culture, northern areas up to 150 grams in the year, southern region of up to 200 grams. 1 Winter age of pengze crucian carp can reach sexual maturity, can reproduce naturally in the rivers, lakes
TERA Gold, ponds, the fertilized egg is a single sperm, it is normalTwice times of sexual reproduction, egg with viscous. Are multiple spawning type, propagation of 3-July each year in April and reproductive prime. In the South, generally after mid-March, when the water temperature rises up to around 17 �� c, pengze crucian carp begins breeding, reproductive activities most of 20-24 �� c. Rainfall and climate on the propagation of micro-flow and heat induced spawning of pengze crucian carp. Reproductive technologyBroodstock selection of pengze crucian carp weights at more than 200 grams, robust physique, injury-free, have the typical characteristics of a mature individual. Spawning pool area to 0.6-1 Mu as well. Oxytocin in 7-10 days to clear the spawning pool before disinfection of pond and raise about 70 cm deep, and against wild fish to the spawning pool. Palm skin or Willow roots tied into a fish nest, with 10-20 g/Cubic meter immersion in potassium permanganate disinfectant, dried and standby. Propagation can be induced spawning also natural spawning. Induced spawning, female human chorionic gonadotropin for injection/kg 800-1200 international units, or luteinizing hormone-releasing hormone analogs of 20-30 mg. Male injection dosage in half. Using a one-time injection of oxytocin, the injection site is usually the base of pectoral fins freeSquamous cell. Oxytocin in pengze crucian carp water temperature 18-20 �� c, effect of time of 9-16 hours, spawning time lasts 6-20 hours as a whole. Fertilization of eggs with other carp the same hatching method. Natural breeding male and female broodstock are selected according to the certain proportion into the same after cleanup of disinfection in the spawning pool, when the weather is fine, the water temperature when appropriate, if estrus broodstock, immediatelySet fish nests, making it spawning their own propagation. This method is simple and easy, suitable for small batch production, the main disadvantage is long spawning period, seedling emergence time inconsistency, does not facilitate the next stage of feeding and management. FRY 1. Stocking black stocking the stocking density per acre ponds 0. 8-1. 20,000 or summer flowers 7000-9000, tank specifications 50-100 g/Tail. Under FRY after Tong 10-15, silver carp 2000-3000 end of summer flowers, as the match type to regulate water quality (but not match carp, tilapia), survival rates of up to 90% per cent, 500-750 kg per acre each species. 2. Feishou of under water after feeding fish ponds under application of organic fertilizer or feed the milk. According toGrowth of feeding effects of fine powder, wheat flour, food such as rice bran, after about 20 days of training, can grow summer flowers of about 3 cm. Xia Hua developed into large-size species, feeding the full price you want combined with pellet feed, protein 30%, feed coefficient 1. 4-1. 7, size 0. 2-2. 0 mm, less early, late. Daily feeding rate fish8% about domestication and feeding. After 15 days of training around clusters floating eat. Feeding feishou amount should be based on water temperature, weather conditions, water quality, fish food flexibility. 3. Day-to-day management is to enhance water quality management, maintain the water transparency 25-30 cm, pool water and fertilizer, live, delicate, crisp. During the FRY, especially in summer,Often for new water to prevent water quality fertilizer. 20-25 water a day early, 10-15 cm
SWTOR Credits, late 7 days changing the water once every 15-20 cm. In the breeding process, when when transparency is greater than 30 cm, time dressing, the principle of "less Shi shi", each may execute urea 50 kg or 3 kg of organic fertilizer. Bi-monthly pool sprinkle itImproving water quality of quicklime, quicklime 15 kg per acre. To prevent and cure diseases on a regular basis. Fish Carassius auratus pengze into fish farming in many ways, you can FRY develop commodity fish of the year, winter, or spring fish get into the habit of fish. Except in a pond of pengze crucian carp culture in vitro, also suitable for small lakes and reservoirs, paddy fields, and cage culture in a variety of water in Lotus field. 1, the main species in pond: Area of 2-3 acre pond, depth of 1.5 meters above the bottom there are 10-15 cm of silt, in front of the village sewage pond behind the House better. Stocking of fingerlings per acre in winter around 1500, 2000 end of summer flowers species, matching 40%, flowers of grass carp silver carp species in winter. Stocking time sooner rather than later; stocking species specifications, pengze CountyWinter of Carassius auratus gibelio fingerlings of 5-6.5 cm, summer flowers should be big not small. Feeding and management of feed concentrate, combined with fertilizer supplement training water quality. Years of concentrated feed about 2.5 times the equivalent of pengze crucian carp is expected to yield. In the General case, raising water available per mu of pengze crucian carp about average weight of 150 g of 200 kilograms of Carassius auratus, about 200 kilograms of fish�� Due to the high proportion of high quality fish, its good economic benefit. 2, into a fish pond polyculture: often used in polyculture of fish and many varieties of ways. Pengze crucian carp stocking 5-6.5 cm in winter, summer flowers of stocking large-size species, stocking density per acre 150-250, other fish and quantity determined according to conditions and needs. The survival rate of pengze crucian carpAbout 80%
Diablo 3 power leveling, about 200 days of feeding, them, the vast majority of individuals in more than 200 grams, more than 20 kilograms per acre. 3, fish pond: fish species, such as the home of pengze crucian carp pool form in fish, but not suitable for raising carp, tilapia fish in the pool. Summer flower fish pond into the winter while FRY, summer flowers in pengze crucian carp fishSpecies. Stock size should be big not small, end of the stocking density is normally 150-220 per MU. Under normal breeding conditions, with 150-180 days of feeding, from the end of specifications of more than 200 grams of water, per Mu income pengze crucian carp fish 25-40 kilograms. 4, cage: cage placed in reservoirs, lakes, and other water-intensive farming. CageSpecifications, general area of 16-28 square meters, 2-3 metres deep. Cage materials to choose 3x3 polythene cable as well. Often single, can also match a certain percentage of silver carp and Bighead carp, silver xenocypris, but control within the production of 3-5%. Per square meter area of pengze crucian carp stocking more than 5 cm specifications types of 50-200, species within the same cageOne foot, stocking specifications must be in order. Feeding of half-floating or sinking particles of compound feed. Bait formulations may refer to carp feed formulas, protein content may be slightly lower than the CARP bait. Diets should be agreeable, to increase utilization. General after 180-200 days feeding, fish with an average weight of more than 200 grams per square metre yields up to 8-25 kilograms�� In addition, natural diets rich in small lakes and reservoirs and water-fertilizer for stocking pengze crucian carp, feeding and fertilization of lakes and reservoirs of semi-intensive culture culture better. Especially 1-3 good Lakes or dry fish in lakes and reservoirs, stocking increasing yield effect of pengze crucian carp are more obvious.
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