Finfish Breeding and Hatchery Management (2+1)

15.2. Broodstock development and breeding of olive barb

Unit 15 - Breeding of indigenous carps

15.2. Broodstock development and breeding of olive barb, P. sarana
Collection of wild fish

• Live specimens of P. sarana could be collected from reservoir, river, etc. using gill net/cast net.
• The collected fishes are immediately anaesthetized with quinaldine (20 ppm) for 2 minutes and transferred to high density poly ethylene bags (capacity 10 kg) containing clear water taken from the vicinity.

Packing and transportation

• The fishes are packed in plastic bags with 1/3 water and 2/3 pure oxygen and transported using plastic crate/carton box, by car.
• During transit, partial water exchange may be done and O2 filled to the bag.
• Regular checking of bags for any leakage should be carried out during transportation.

Acclimatization

• For acclimatization of the wild-caught specimens, the holding tanks should be thoroughly disinfected with a solution of KMnO4 (5 ppm) and water was filled to 3/4 of its volume and allowed to stabilize for 2-3 days.
• Netting should be used as a cover to avoid the escape of fish or predation by birds.
• In case of wounds, fishes are given a bath treatment with KMnO4 (5 ppm) for 2 minutes.
• After every 24 hours, swabbing may be done.
• The fishes are fed with pelleted feed during acclimatization when they do not normally accept it.