Carp

Carp is a native fish the waters of Indonesia that have spread to Southeast Asia and China. Is one of the fish and taxonomically labirinth including Osphronemidae family.Gourami is one commodity that has been developed by farmers this is because the market demand is high, maintenance is easy and relatively stable prices.A. SystematicsPhylum: ChordataClass: ActinopterygiiOrder: PerciformesSuborders: BelontiidaeFamily: OsphronemidaeGenus: OsphronemusSpecies: Osphronemus gouramy, Lac.In morphology, these fish have a lateral line single, complete and not broken, scaly stenoid and have teeth on the lower jaw. Caudal fin rounded. The radius of the first weak pelvic fin is a long string that serves as a feeler. 2.0 to 2.1 times the height of standard length. In the young fish are colored vertical stripes of black, amounting to 8 to 10 pieces and at the base of the tail there is a round black spot.3. Seedinga. SpawningCarp can spawn throughout the year, despite higher productivity, especially in the dry season. The thing to note for this hatchery stocking is a solid carrier, the layout of the nest, egg harvesting and water quality spawning media. Females are characterized by the shape of the head and jaw and dark spots on the petals of the fin. Male parent is characterized by a lump on the head of the upper and lower jaw heavy, especially during spawning season and the absence of black spots on the petals pectoral fins. While the female parent is characterized by flat head shape upper and lower jaw thin and dark spots on the petals of the pectoral fins.Dispersive solid tail holding is 1/5 m2 with a ratio of the number of males: females was 1:3-4. Spreading the parent in the spawning pond can be done in pairs (as comparison) in a sealed pond or communally (a pond filled with multiple partners). Parent female can produce up to 1500 eggs 2500 eggs / kg of the parent.Nests placed 1-2 m from the nest material with a depth of 10 -15 cm from the surface of the water. Nest mounted horizontally parallel to the surface of the water and facing the direction of the nest material.Place nesting material is placed on the water surface can be rough woven from bamboo or other materials arranged so that the parent fish easy to take coconut fiber / fibers to make nests. Nest building can last for 1 to 2 weeks depending on the condition of the parent and the environment.Examination of the nest already containing eggs can be done by rubbing and gently shake the nest or nests using sticks with piercing / wire and swing. Nests containing eggs that have been marked by the discharge of oil / egg from the nest to the water surface.Nests containing eggs that have been raised. Eggs from nests separated by open nest carefully. Because it contains oil, the egg will float on the water surface. A good egg while the egg is yellow clear muddy yellow eggs are separated and discarded as such will not hatch. Resulting oil can be reduced by wearing cloth absorbed.A good quality spawning media are 25-30 ° C temperature, pH value of 6.5 to 8.0, the rate of 10-15% water changes per day and the water height 40-60 cm.b. Hatching EggsDense stocking eggs 4 to 5 butir/cm2 with water height 15-20 cm. Density per unit surface area was calculated according to the nature of the egg container that floats. To maintain the dissolved oxygen content in the media need to be added aeration hatching but must be kept small so that the egg is mixed. Water quality is good hatching medium temperature 29-30 ° C, pH values ​​from 6.7 to 8.6 and sourced from groundwater. When water sources contain high carbon, low pH values ​​or contain metal (eg iron), water should be deposited first for 24 hours. The eggs will hatch after 36-48 hours.c. Maintenance of LarvaeAfter the eggs hatch, the larvae can be maintained in the hopper hatch / basin until the age of 6 days and then transferred to the aquarium. When hatching performed at the aquarium, the transfer of larvae is not necessary. During larval rearing, water replacement is only necessary to discard the oil when the oil is produced when the hatch is quite a lot. Meanwhile, when the larvae are fed, the replacement of water can be adjusted to the condition of water that is if you have a lot of food remains and excrement "Faeces".Larvae in the aquarium maintenance performed by dispersive solid 15-20 tail / liters. Feed was started when the larvae reach 5 to 6 days of Tubifex worms, Artemia, Moina or Daphnia are adapted to the fish's mouth opening. Water quality should be maintained at a temperature 29-30 ° C, pH values ​​from 6.5 to 8.0 and the water levels 15-20 cm.d. Separating I, II, III, IV and VMaintenance of seed in the nursery I to V can be done in an aquarium or pond. Performed in the same aquarium as well as larvae but pemelihaaran need thinning. While in the pool needs to be done preparatory activities that include swimming pools subgrade treatment, drying, liming, fertilizing, and water filling the pool water conditioning. Tillage bottom of the pool can be a hijacking, peneplokan and repair the dike of the pond. Drying is carried out for 2-5 days (depending on weather).e. DiseaseWhen attacked by unidentified fish parasite treatment can be done with the salt 500 - 1000 mg / l by means of immersion for 24 hours. Meanwhile, when attacked by bacteria identified treatment can be done by administering a dose of oxytetracycline 5 -10 mg / l by immersion for 24 hours.
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