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/Sep/1999
Tarcísio de Moraes Gonçalves, Mário Luiz Martinez, Cláudio Manoel Rodrigues de Melo, Rui da Silva Verneque, Antonio Ilson Gomes de Oliveira
DOI: 10.1590/S1516-35981999000500014
The objective of this work was to determine the multiplicative factors to estimate the milk production (DP) based on the morning (MM) or afternoon (AP) milk yield and their were obtained of 3,632 lactations from 2,143 cows of the Gir breed, daughters of 335 sires, from 1993 to 1996 records. The calving year (Y) lactation length – linear (LL), calving age – linear and quadratic (A) and a factor K (the possible double, triple and quadruple interactions among management level […]
Keywords: dairy cattle; environmental factors; Gyr breed; partial production