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/Dec/2012
Guilherme Pugliesi, Giovanni Ribeiro de Carvalho, Daniel Macêdo Rates, Pedro Gama Ker, Manuela Pereira da Matta, Renan Reis de Oliveira, [...]
DOI: 10.1590/S1516-35982012001200005
Two semen extenders were compared for their ability to maintain viability of horse semen during 24 hours of cold preservation, and for the pregnancy rate after artificial insemination. In the experiment 1, five ejaculates from three stallions were split-diluted in either a skimmed milk-based extender (Kenney extender) or a glycine egg yolk-based extender (Foote extender) and cooled at 6-8 ºC for 24 hours. Semen samples stored in Kenney extender for 24 hours had higher motility and spermatic vigor compared with […]
Keywords: artificial insemination; cooling; semen extender; stallion
01/Apr/2000
Lia de Alencar Coelho, César Roberto Esper, Joaquim Mansano Garcia, Roberta Vantini, Ivo Luis Almeida Junior
DOI: 10.1590/S1516-35982000000200012
This study investigated the effect of semen extender on in vitro development of bovine oocytes after in vitro maturation and fertilization. The ejaculate from one bull was divided in three parts which were diluted with three different extenders: Egg yolk/Lactose (EYL), Egg yolk/Citrate (EYC) and Egg yolk/Tris (EYT). Samples of semen diluted with these extenders were frozen in liquid nitrogen and, after thawing, were filtered by discontinuous Percoll gradient. The sperm concentration was adjusted to 10 x 106 cells/mL and […]
Keywords: bovine; cleavage rate; embryo; in vitro fertilization; semen extender