27, To the reproduction of shrimps penaeid

摘要

The process of the invention consists in placing immature prawns in tanks containing water and sand at a starting temperature in the range of about 14 DEG to 18 DEG C and with daily lighting for about 8 to 13 hours, in progressively increasing the said temperature to an optimal value in the range of between 20 DEG and 26 DEG C, the increase in temperature being applied for at least about 3 months, in simultaneously and progressively increasing the said daily lighting to an optimal value in the range of about 131/2 to 16 hours, in feeding the prawns daily and to repletion with steroid-rich substances and in then maintaining the optimal conditions of temperature and lighting the entire duration of oviposition.