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In tilapia, precocious sexual maturity associated with continuous and asynchronous reproductive activity often results in unwanted reproduction and overcrowding in ponds where the food supply is limited. This constitutes a major limitation in the culture of most tilapia species. Furthermore, divergent growth performances linked to sex are regularly observed. Males present better growth performances...
Growth of Tilapia zillii, Sarotherodon galilaeus, Oreochromis aureus, and three populations of O. niloticus was studied in earthen ponds under declining water temperatures. Throughout 19 weeks of culture, average biweekly temperatures dropped from 32.7 to 15.9 o C. Average individual weights of the fish increased from 0.64, 0.45, 0.21, 0.22, 0.12, and 0.15 g to 31.5, 31.8, 65.7, 59.3, 59.6,...
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