Breeding of Common Carp

• Common carp (Cyprinus carpio) generally breeds in confined water.
• Spawning takes place in shallow marginal, weed infected areas from January to March and from July to August.
• Common Carp is also observed to breed round the year.
• Controlled breeding of common carp is conducted to achieve better spawning and hatching.
• A set of selected brooders contains one female and two males. 

Brood fishes in hapa

• In order to ensure successful spawning sometimes the female fish is injected with pituitary gland extract at a low dose 2 to 3 mg / kg body weight.
• Freshly washed aquatic weeds (Hydrilla, Najas, Eichhornia etc) are uniformly distributed inside the hapa. These aquatic weeds act as egg collections.

Eggs attached to the hydrilla

• The quantity of weed used is roughly double the weight of the female introduced. Each weed attached with 40,000 to 1,00,000 eggs are distributed into a single hatching hapa.
• After 4 to 5 days the weeds are taken out carefully.

Common carp in breeding hapa with hydrilla