It is advised that attention should be given to sourcing good broodstock of O. mossambicus or using all-male fingerlings from reputable hatcheries.
Kunconywa ukuthi kufanele kunikezwe ukunakekelwa kokunciphisa ama-o.mossambicus ama-broodstock amahle noma ukusebenzisa wonke ama-fingerlings avela kuma-hatcherries ahloniphekile.