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/Feb/2002
Luciele Cristina Pelicioni, Lillian Pascoa, Carolina Amália de Souza Dantas Muniz, Sandra Aidar de Queiroz
DOI: 10.1590/S1516-35982002000100007
The aims of this research were to estimate the influence of age of dam at calving (AC), and julian date of birth (JDB) on weaning weight (WW) and preweaning average daily gain (ADG) of gyr calves and adjustment factors for them. It was analyzed 10,685 and 18,339 records, on WW and ADG of Gyr calves, from the Associação Brasileira dos Criadores de Zebu data set belonging to 1229 and 1979 contemporary groups (CG), respectively. AC, for males, was fitted as […]
Keywords: adjustment factors; Gyr cattle; preweaning average daily gain; segmented polynomial; weaning weight