Raising carp (Osphronemus gourame) is not as easy as carp and tilapia aquaculture. Although it can spawn naturally, these fish need special handling, especially during spawning, hatching and larval rearing. However, the cultivation of carp have been successfully developed, because it remains a promising business opportunity.
Gonad maturation
Gonadal maturation of carp in the pond can be done soil. How, to prepare the pool size of 50 m2; dry for 2-4 days and improve all parts of the pond; water content as high as 50-70 cm and circulate continuously; input 40 breeding size from 2.5 to 4 kg; give additional food taro leaves as much as 2 percent and 1 percent each day.
Selection
Parent selection is done by seeing the signs on the body. Sign of a mature female gonad: chin (above head) flat, slightly bloated abdomen; body rather dull, slow movement and redness genital hole. Sign of the male parent: protruding chin, nimble movement, the body is lighter and brighter; hole genital redness.
Spawning
Spawning carp was conducted in earthen pond. Pond must be away from the crowds. The trick: prepare the pool size of 50 m2; fix all the parts thereof; dry for 3-5 days; water content as high as 60 cm and circulate continuously; pairs of four fruit sosog (nest made of bamboo or plastic bins) in the four corners of the pond; input 30 breeding females; four pairs of bamboo rack 5 cm above the water surface, place the palm or coconut belts as nest material; input also 10 breeding males; take the nest already containing eggs (usually nest was covered with palm or coconut belt and water around oily nest); tetaskan in hatcheries.
Hatchery in aquarium
Carp hatcheries are conducted in an aquarium. The trick: prepare an aquarium size 80 cm long, 60 cm wide and 40 cm high; dry for two days; water content as high as 30 cm; pairs of two points and turn on aeration during hatching; input from a nest egg that has been cleared of rubbish and rotten eggs; hatch will last for 10 days; on the fifth day some water is removed and replaced with new water; harvest larvae or beni with sekup net and stocked into the pond ready I.
Hatching in a plastic basin
Carp hatcheries may also be done in a plastic basin. The trick: prepare a large plastic basin (volume 50 liters); dry for two days; water content as high as 20 cm; input from a nest egg that has been cleaned of garbage and rotten eggs; hatch will last for 10 days; on the day The fifth part the water is removed and replaced with new water; harvest larvae or beni with sekup net and stocked into the pond ready I.
Separating I
Separating the first carried out in the pond soil. How: ready pool size 100 m2; dry 4-5 days; fix all the parts thereof; make kemalirnya; essentially averaged soil; scatter two sacks of chicken manure or quail; contents as high as 40 cm of water and soak for 5 days (the water is not discharged); dispersive 10 000 larvae in the morning, after two days, give 0.5 to 1 meal pellets or pellets that have been soaked every day; harvested seeds after 3 weeks of age.
Germination II
Separating the two also performed at the earthen pond. How: ready pool size 100 m2; dry 4-5 days; fix all the parts thereof; make kemalirnya; essentially averaged soil; scatter two sacks of chicken manure or quail; contents as high as 40 cm of water and soak for 5 days (the water is not discharged); dispersive 8000 fry from the nursery I (already selected); give 1-2 kg of flour pellets or pellets that have been soaked every day; crop seeds after one month of age.
Separating III
Germination was conducted in three earthen pond. How: ready pool size 100 m2; dry 4-5 days; fix all the parts thereof; make kemalirnya; essentially averaged soil; scatter two sacks of chicken manure or quail; contents as high as 40 cm of water and soak for 5 days (the water is not discharged); dispersive 6000 tail results from separating II (already selected); give 3-5 kg of small pellets (especially carp); seed harvest done a month later.
Enlargement
Enlargement of carp in the pond soil performed. The trick: prepare a pool size of 200 m2; fix all the parts; scatter four sacks of chicken manure or quail; water content as high as 40-60 cm and soak for 5 days; input selection result 10 000 fry from nursery III; news feed 3 percent every day , 3 kg at the beginning of maintenance and be on the increase according to the weight of the fish; circulate water continuously; do harvested after three months. A pond can produce 0.5 kg of food fish size of 400-500 kg
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