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/Oct/2006
Anselmo Domingos Ferreira Santos, Ciro Alexandre Alves Torres, Jeferson Ferreira da Fonseca, Álan Maia Borges, Eduardo Paulino da Costa, José Domingos Guimarães, [...]
DOI: 10.1590/S1516-35982006000700007
This study aimed to evaluate reproductive characteristics (sexual behavior, scrotal perimeter and quali-quantitative aspects of semen) of young and adults Alpine and Saanen male goats exposed to an artificial photoperiod (16 hours of light and 8 hours of darkness for 2 months). The young animals showed greater libido than the adults, based on the smallest time of reaction. Frequency of manifestation of the behavior traits varied between breeds and ages and higher intensity was observed on adult animals. Scrotal perimeter […]
Keywords: behavior; male goats; photoperiod; scrotal perimeter; sex selection
01/Dec/2004
Jânio Coelho da Silveira, Concepta McManus, Arthur dos Santos Mascioli, Luiz Otávio Campos da Silva, Arley Coelho da Silveira, José Américo Soares Garcia, [...]
DOI: 10.1590/S1516-35982004000600010
The objective of the present work was to investigate the effects of some genetic and environmental factors on production (weaning weight WW; eighteen month weight W18) and reproduction (scrotal perimeter at 18 months SP18; calving interval CI; age at first calving AFC; True fertility TF, calving date CD) traits in a Nellore cattle herd in the Mato Grosso do Sul State, Brazil. The observations were analysed using the least squares methodology, and the statistical models included the fixed effects: year […]
Keywords: age at first calving; calving date; calving interval; scrotal perimeter; true fertility; weight
01/Apr/2000
Joslaine Noely dos Santos Gonçalves Cyrillo, Alexander George Razook, Leopoldo Andrade de Figueiredo, Luiz Martins Bonilha Neto, Ana Cláudia Ruggieri, Humberto Tonhati
DOI: 10.1590/S1516-35982000000200013
The objective of this study was to evaluate the indirect effects of selection for post-weaning weight on body measures and scrotal perimeter of 809 Nellore males from selected herds (NeS and NeT) and control herd (NeC), of the Estação Experimental de Zootecnia de Sertãozinho. The statistical analyses were performed by using a sire mixed model where the random source of variation, sires, was nested within herds. The fixed effects were herds, year of performance test (PGP), age of cow and […]
Keywords: body measurements; scrotal perimeter; selection; weaning weight