01073naa a2200145 a 450000100080000000500110000800800410001910000110006024500870007126000090015852006120016765300160077965300120079577301200080710809642011-10-03       1998    bl uuuu     u00u1 u    #d1 aEpagri  aResults obtained from polyploidy production in nile tilapia Oreochromis niloticus.  c1998  aTriploid animals are frequently more productive than regular diploids. Another great advantage of triploidy is the fact that these animals are infertile, and therefore do not spend energy in gonad maturing. The Nile tilapia sometimes offers restrictions for being a highly prolific fish in temperate waters, thus impairing more intensive monocultivations. In this work, a tetraploidy production technique was used with tilapias (n=44), witch consisted of applying thermal chocks on recently fertilized eggs, for subsequent breeding with normal diploid animals, as a means of propagating triploid generations  aPoliploidia  aTilapia  tIn: SIMP??SIO BRASILEIRO DE AQUICULTURA - SIMBRAQ, 10., 1998, Recife, PE. Anais... S??o Paulo: ABRAQ, 1998. p. 161.