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/2010
Isabella Dias Barbosa Silveira, Vivian Fischer, Gilson de Mendonça
DOI: 10.1590/S1516-35982010001000029
The objective of this work was to evaluate behavior of sheep and to relate behavioral aspects with breed and age of animals. It was observed 5,971 animals distributed in 181 plots regarded to: breed – Corriedale (n=2,731), Ideal (n=1,574), Merino (n=168), Texel (n=717), Suffolk (n=247) and six crossbreds (n=534); age – yearlings (1.5 year, n=3,021), ewes (above 1.5 year, n =2,457) and lambs (average 6 months of age, n=493). Average behavior of plots was evaluated by attributing scores of movement […]
Keywords: agitation; behavior; breeds; scores; temperament
01/Jun/2002
Aya Sasa, Daniela Cristiane Teston, Paula de Almeida Rodrigues, Lia de Alencar Coelho, Edison Schalch
DOI: 10.1590/S1516-35982002000500011
The goal of this experiment was to provide information about the pattern of progesterone secretion (P4) and on the oestrus cycle characteristics in hair and wool ewe lambs, from April to November, in São Paulo State. Blood samples from jugular vein were collected from 12 ewe lambs Santa Inês (SI), Romney Marsh (RM) and Suffolk (SU) breeds, and the concentrations were determined by radioimmunoassay method, using commercial kits. Oestrus was detected by using vasectomized rams (fitted with raddle crayons + […]
Keywords: breeds; oestrus cycle; ovine; progesterone