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/May/2010
Cristiana Libardi Miranda-Furtado, Priscila Vendramini Silva, Marta Fonseca Martins Guimarães, Nicola Vergara Lopes Serão, José Domingos Guimarães, Simone Eliza Facioni Guimarães
DOI: 10.1590/S1516-35982010000500012
The main purpose of the present study was to identify for candidate genes related to ovulation in swines. To do so, it was investigated in ovarian follicular cells through quantitative real-time PCR the differential expression of the following genes: steroidogenic acute regulator (STAR), GATA-binding protein 4 (GATA), prostaglandin F2α (PGF2α), progesterone receptor (P4R), follicle-stimulating hormone receptor (FSHR), and cytochrome P450 aromatase (CYP19). These genes encode hormone receptors (FSHR and P4R), hormone (PGF2α), steroidogenic proteins (STAR and CYP19) and transcription factor […]
Keywords: candidate gene; litter size; ovulation rate; pig production; quantitative real-time PCR
01/Nov/2008
Fernanda Fernandes Lourenço, Nelson José Laurino Dionello, Gil Carlos Rodrigo Medeiros, Valmir Costa da Rosa
DOI: 10.1590/S1516-35982008001100009
Data from 12.840 litters, recorded from 1989 to 2003, were used to evaluate genetic parameters and genetic trends of reproductive traits in Large White pigs. Data were provided by the Swine Breeders Brazilian Association – ABCS and included records on litter size at birth (NLN), litter size at 21 days (NLD), average litter weight at birth (PMNasc), litter weight at weaning adjusted to 21 days (PMD), average daily weight gain (GMD) and number of stillbirth (NatMort). Variance components were estimated […]
Keywords: direct and maternal genetic effects; genetic trends; litter size; litter weight; stillbirth
01/Oct/2004
Haroldo Garcia de Faria, Cláudio Scapinello, Rosane Marina Peralta, Thierry Gidenne, Antonio Claudio Furlan, Márcia Aparecida Andreazzi
DOI: 10.1590/S1516-35982004000500009
Two experiments were carried out to study the effect of the normal (15%) or high (24%) starch level on the digestibility and performance in growing rabbits from four feeding patterns until weaning. For the digestibility assay, 96 White New Zealand from 35 to 49 days of age, were allotted to a factorial design 2x2x2 (two milk intake patterns versus two starch levels before weaning versus two starch levels in diet after weaning), with eight treatments and 12 replicates. Animals from […]
Keywords: digestive utilization; litter size; performance; starch in diet