Induced maturation and spawning in five-month-old Penaeus monodon Fabricius by eyestalk ablation
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Pond-reared sugpo (Penaeus monodon Fabricius) females from coastal fry harvested after 4 months were unilaterally ablated and stocked in an indoor concrete tank with an equal number of males. The first two spawnings were obtained 22 d after ablation with the eggs hatching into viable nauplii. Five months (12–15 d from spawning to first postlarva, 14–16 d from first postlarva to coastal fry, and 4 months rearing in ponds) is the shortest age on record at which P. monodon females can be successfully ablated.
Contribution No. 10 of the Aquaculture Department, Southeast Asian Fisheries Development Center.