what are problems faced in composite fish culture

one  problem with composite fish culture is that many of these fishes breed only during monsoon . the fish seed collected can be mixed with that of other species . thus ,a major problem  in fish farming is the lack of availability of good quality  seeds .        this  problem  can be  overcome   by  breeding fish in ponds using hormonal  stimulation.  this   ensures   the  supply   of  pure  fish  seed  in  desired  quantities.
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