The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
01/Jun/2009
Erika Neumann, Teresa Cristina Ribeiro Dias Koberstein, Francisco Manoel de Souza Braga
DOI: 10.1590/S1516-35982009000600001
This study describes the differential effect of sexual reversion in tilapia strains on survival rates, growth and the percentage of phenotypical males under different environmental conditions. Two Orechromis niloticus strains (common Nile tilapia and Thai-chiltralada) and one hybrid Oreochromis sp (red tilapia) were used, which were fed from hatch during the first thirty days of life with 17-α-methyltestosterone hormone incorporated to the ration (60 mg/kg). At the 90th days, the survival rate of the common Nile had surpassed Thai-chiltralada in […]
Keywords: condition factors; growth; sexual reversion; survival rate