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/2010
Dominique Blache, Samantha L. Bickell
DOI: 10.1590/S1516-35982010001300044
Reproductive capacity is controlled by a large number of factors such as season, social interactions and metabolic status. However, the influence of emotional reactivity on reproductive success has not been intensively investigated in farm animals. In this review, we define emotion reactivity and the expression of its inter individual variability named temperament. We briefly describe our protocol to measure temperament in sheep and discuss the heritability of temperament traits. Using the results obtained from our flock of sheep selected for […]
Keywords: male-effect; ovulation; sheep; survival; temperament
01/Jun/2004
Sergio Augusto Ferreira de Quadros, José Fernando Piva Lobato
DOI: 10.1590/S1516-35982004000300016
The goal of this experiment was to evaluate if biostimulation may favourably change the reproductive performance of beef heifers on their first breeding season. For this purpose, 50 days before the artificial insemination (AI) period, 60 two-year-old heifers (Hereford x Nelore) were randomly distributed into two treatment groups: biostimulatated (BE) using a ruffian or not biostimulated (NE). The rates of cycling heifers before AI were 76 and 56% for BE e NE, respectively. Conception rates were 90 and 73% for […]
Keywords: biostimulation; heifers; male-effect; reproductive performance