Induced breeding of pacu (Piaractus brachypomus) in captivity with pituitary extract

Dear Doctor, I would like to know that what will be the dose of synthetic hormone administration for induced breeding of Pacu (P.Brachypomus) in captivity. Plz. also share the details of pre- and post fertilization care to be taken for nursing and increasing survivability of spawn.

recently i injected four males and 2females,but after 12 hours eggs come out as clot with blood.i want to know why i am facing this type of problem.i have facing 2nd times.i used 1st does of female- 2mg/kg,2nd does-10mg/kg,beetween 6 hours,male & female both were fully mature,and female belly was full of eggs, one thing ,when we stripping the fishes then some eggs come out free flowing and clot.after one day i see maximum unfertilised eggs.

Dear Mr.Mukherjee, Please mention what type of inducing agent has been tried. Whether it is pituitary extract or synthetic hormone? Further in which position the same was injected. I believe this is equally important. Dr.Banerjee

Yes. Not only Pitutary extract but also synthetic hormone.

I've gone through the paper entitled, Induced breeding of pacu (Piaractus brachypomus) in captivity with pituitary extract Published on: 07/10/2009 Author/s : Chattarjee, N.R. & Mazumdar, B.Department of Aquaculture, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery Sciences. Aquaculture Asia Magazine. There are some sentences are hidden. For example,Generally 2 kg of Induced breeding of pacu (Piaractus brachypomus) in captivity with pituitary extract...............???? Chattarjee, N.R. & Mazumdar, B. Department of Aquaculture, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery Sciences, 5 B.H. Road, P.O. Panchasayar, Kolkata – 700 094, West Bengal, India.........???? feed/ha is given daily at this stocking rate. Within 8-10 days the spawn develop into fry, which are transferred to rearing ponds. it will be appreciated if you kindly discuss the same.

Yes, of course. Most of the hatchery owners of Naihati and Burdwan are to be educated in in Pacu breeding. It is true that only three hatchery owners could successfully produce pacu seeds. Biplab Kr.Banerjee

Hi, is it mandatory to use this pituitary extract? Is there no other way to reproduce these fish?