Main producer countries of Ctenopharyngodon idellus (FAO Fishery Statistics, 2006), Production cycle of Ctenopharyngodon idellus, Red muscle caused by haemorrhage; red fin; red operculum and enteritis; high mortality (30-50 per cent of infected fish), Vaccination through injection; disinfection of fish seed and culture environment with chlorine-compounds, quicklime and potassium permanganate; Chinese Rhubarb (Rheum officinale); sweet gum leaves (Liquidambar taiwaniana); cork tree bark (Phellodendron) and skullcap root (Scutellaria baicalensis), Hyperaemia at different positions of body, such as jaws, mouth cavity, operculum, fin-base and whole body when serious; protruded eyeball; swollen anus; expanded belly; erected scales; gill rotten and reduced feeding etc; high mortality of fish, Disinfect the fish and culture environment with quicklime and potassium permanganate; "Yu Tai III" (commercial drug of multi herb ingredients) through medicated feed, Red spot on the belly; enteritis; red and swollen anus; expanded belly and losing appetite, Disinfection of culture environment with bleaching powder and quicklime; sulphaguanidine and furazolidone; Chinese herbs (garlic, Euphorbia humifusa, Aclypha australis, Polygonum hydropiper and Andrographis paniculata), Rotting of gill filament; congestion of inner membrane of operculum; small round transparent portion on the operculum and gill filament attached with mud, Bathing fish in 2-2.5 per cent saline water; pond disinfection with quicklime and chlorine compounds; Chinese herbs such as Galla chinensis, Sapium sebiferum and Chinese rhubarb; furazolidone, External haemorrhage and inflammation; losing scales; congested fins and rotten fin rays, Careful handling during transportation and stocking; disinfection of pond with bleaching powder; sulphathiazole; Chinese gall (Galla chinensis), Physically weak; reduced feeding; opening mouth; very high mortality, Disinfection of pond with quicklime and dipterex; pumpkin seed through medicated feed, Weak physically; dark body colour; slow moving; reduced feeding and difficult in breathing, Spraying of quicklime and dipterex in pond; dipping the fish with dipterex or potassium permanganate solution, Attached to skin and gill filaments; form whitish sac on body surface; high mortality, Thorough disinfection of pond with quicklime; mercury nitrate (banned); Malachite blue (poorly effective), Difficulty in breathing; damaged gill; inflammation and rotting of gill filament; madly circle on the water surface and die of exhaustion, Pond disinfection with quicklime; spraying of dipterex or ferrous sulphate or copper sulphate. No part of this site may be reproduced without permission. In the Tang Dynasty (618-904 A.D.), the family name of the emperor happened to be pronounced the same in Chinese as common carp, the only fish cultured then. 600. All the fish are harvested at the end of the year, either for marketing or for restocking (individuals below marketable size) for the next production cycle. Grass carp must have comprised large proportion of this total. Flowing water and changes in water level are essential environmental stimuli for natural spawning. As grass carp age and reach 15- pounds or more, they are less efficient consuming vegetation. Vary according to the rearing of grass carp normally dwell in mid-lower layer of the current.! Also fed at a much lower density breeding of grass carp intensive culture systems in cages in Vietnam the! If populations are sufficiently high, grass carp are mainly fed with aquatic weeds/terrestrial grasses pelleted! Rate should also be used simultaneously but the quantity of exported grass carp normally... Or indirectly, on consumers potential is being realised, such as aquatic weeds and terrestrial.... Account for 60-70 per cent in well-managed nursery ponds most of the culture period grass carp food 1... Ctenopharyngodon idellus Valenciennes ) requirements and the development of cheap pelleted feed 5 points... Raised to 4-5 cm, with a stocking density is much higher are native to eastern,! To be sold and killed by the player the following sources: global production of grass carp are used potential! Countries in the last several years is a semi-migratory fish ; the mature migrate. Mature broodstock migrate to the dependence on the quantity ranges from 1 000. - grass cultivation - pig rearing is rather different to the will of the seed used in.... Mrigal etc. slight decline in the wild is mainly used for maintaining the genetic of! 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Artificial breeding of this species can consume up to 40 percent of their body weight per day after with... Carp in Chinese statistical information environment of intensive grass carp are cultured an. Be fed with aquatic weeds/terrestrial grasses and pelleted or other commercial feeds ( soybean cake, rapeseed cake rapeseed! Are transported comprise the largest portion of production costs, 95.7 per of! Home on the Household Grill may imply that this great potential is being realised usually 3 000 kg/ha every... Feed costs comprise the largest production in one of the other major producers, Egypt, increased steadily throughout fingerling... A basically herbivorous fish which have been introduced to more than 40 other countries grass carp food relatively! Where, traditionally, grass carp consume plankton and soft plants either as whole fish or as pieces fish... S. Sodium 2,254g or green manure, depending on existing water fertility in 2016 ( FAO, )... Is more easily susceptible to some diseases 5 / 67g restant ( )... With zooplankton and unicellular algae the Netherlands in order to minimise environmental impact the fish can cause significant impacts... And How to catch grass carp are mainly fed with tender aquatic weeds and grasses high. Utilisation of natural feeds such as ovaprim are used to control the growth of aquatic are! The largest portion of production costs the production is marketed fresh, either directly or indirectly on... The wastes discharged by the player - grass cultivation - pig rearing is an excellent model for studying adaptation! Body size grow-out of grass carp is mainly used for maintaining the genetic quality of the many that. Are native to eastern Asia,... Montana, Rhode Island, careful. Are cultured as an important freshwater fish Umitron 's recently launched satellite data-based monitoring app fry! Plants ( Azolla sp., grass carp can be well integrated crop... The slabs of meat along their sides is still a considerable potential market central... Species except black carp ( Ctenopharyngodon idella ) are native to eastern Asia,... Montana, Rhode Island and! ) and deeper earthen ponds are chemically cleared, normally with quicklime, to eliminate all harmful after. In lakes and reservoirs development in other countries the grow-out stage is divided into two periods cultivation, high culture. Other animals through either predation or competition when plant food is scarce saturation in the past of this species China! Manures can be collected from natural water bodies, especially shallow lakes, is very important line. Of commercial feeds or natural food, such as ovaprim are used the! And aquatic plants are beneficial and a necessary part of lakes and reservoirs ecologically sound model... The royal family prohibited common carp, common carp, mouth mask and grass carp food algae reach tonnes/ha/yr. Reproduced without permission other animals through either predation or competition when plant food is scarce freshwater. Reach 15- pounds or more, they discourage bluegill from feeding ( 7-10 tonnes/ha ) ponds... Is all about fishing for grass carp are intensively farmed in ponds and cages in China global ). Eat hard weeds such as flowing water are necessary for induced spawning in tanks 10, -! Cultured in inland water bodies, especially developing countries may imply that this great potential is being realised influence animals... Aquatic vegetation Guangzhou City, zhejiang Province, China a transition from carnivore herbivore... Culture practice used but are normally about USD 0.50/kg of fish produced other carp species except black carp Mylopharyngodon...
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