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/Jul/2011
Leonardo Franco Martins, Rogério Oliveira Pinho, Renan Moreira Paraizo, Renan Reis de Oliveira, Erick Fonseca Castilho, José Domingos Guimarães
DOI: 10.1590/S1516-35982011000700017
The objective of this study was to evaluate different osmolarities and incubation times during the hiposmotic test and its correlation with cryopreservation of semen of Zebu bulls. It was used 30 ejaculates from six mature Nelore bulls. It was performed physical and morphological evaluation, supravital staining classification and hiposmotic test in the fresh semen. In the hiposmotic test, solutions with osmolarities of 60, 100, 150 mOsm/kg and distilled water (19 mOsm/kg) were used at 15, 30 and 60 minutes of […]
Keywords: Bos indicus; complementary tests; cryopreservation; spermatozoa
01/Apr/2007
Jeanne Broch Siqueira, José Domingos Guimarães, Eduardo Paulino da Costa, Marc Henry, Ciro Alexandre Alves Torres, Marcos Vinícius Gualberto Barbosa da Silva, [...]
DOI: 10.1590/S1516-35982007000200016
The objective of this study was to evaluate the relationship between complementary (hiposmotic, thermo-resistance and acrosome reaction tests) and conventional evaluations (physical and morphologic aspects) of bovine frozen/thawed semen and conception rates. Average values for spermatic motility evaluated by thermo-resistance test were of 53.48% (post-thawed), 43.69% (60 minutes), 35.88% (120 minutes) and 33.04% (180 minutes). The percentage of reactive cells observed for the hiposmotic test was 37.89%. Average intensity was observed for post-thawing spermatic motility, positively correlated to hiposmotic test […]
Keywords: bull; complementary tests; fertility; sex selection