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/Apr/2011
C.M. Bonafé, R.A. Torres, J.L.R. Sarmento, L.P. Silva, J.C. Ribeiro, R.B. Teixeira, [...]
DOI: 10.1590/S1516-35982011000400009
The objective of this paper was to compare different random regression models adjusted through Legendre polynomial functions of different orders to evaluate the one best adjusted to the genetic study of the meat quail growth curve. The data used in this study were from 26,835 and 27,447 observations from 3,909 and 4,040 meat quails of the UFV-1 and UFV-2 strain, respectively. The body weight of the two strain was evaluated on 1, 7, 14, 21, 28, 35 and 42 days […]
Keywords: heritability; Legendre polynomial; variance component
01/Aug/2000
Robledo de Almeida Torres, José Aurélio Garcia Bergmann, Claudio Napolis Costa, Carmem Silva Pereira, Jose Valente, Vania Maldini Penna, [...]
DOI: 10.1590/S1516-35982000000400015
Data of 109.200 lactations were used to verify the effects of heterogeneity of variance on genetic evaluation of cows and bulls of Holstein breed raised in Brazil. Total milk production adjusted for adult age was used to classify the herds among three classes of phenotypic standard deviation: Low (<1427 kg), medium (between 1427 kg and 1625 kg) and high (>1625 kg) classes. Records from the first lactation were analyzed for total milk production adjusted for adult age (TOTAJU) and for […]
Keywords: dairy cattle; genetic parameter; variance component