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
Nelson Massaru Fukumoto, Julio Cesar Damasceno, Fermino Deresz, Carlos Eugênio Martins, Antônio Carlos Cóser, Geraldo Tadeu dos Santos
DOI: 10.1590/S1516-35982010000700022
The objective of this study was to evaluate milk yield and composition, dry matter intake, and stocking rate in pastures with tanzania grass (Panicum maximum cv. Tanzânia), star grass (Cynodon nlemfuensis cv. Estrela-Africana), and marandu grass (Brachiaria brizantha cv. Marandu). The grasses were managed in a rotational grazing system with Holstein x Zebu crossbreed cows, with a 30-day resting period and three days of paddock occupation. The pastures were fertilized with 1,000 kg/ha/year using the 20:05:20 (NPK) formula, split in […]
Keywords: leaf appearance; crossbreed cows; Cynodon nlemfuensis; crossbreed cows
01/Jun/2002
Selma de Fátima Grossi, Maria Armênia Ramalho de Freitas
DOI: 10.1590/S1516-35982002000600006
The objectives of this work were to evaluate the productive and reproductive efficiencies and also the genetics parameters for traits considered, using data from 1877 crossbreed cows (Holstein x Zebu) from four genetics groups. The cows belonged to three commercial dairy herds monitored from 1989 to 1998 by the Dairy Information System (DAISY). The data were processed using the procedure available in SAS (Statistical Analysis System), while genetic parameters on productive and reproductive traits were estimated by the multiple trait […]
Keywords: crossbreed cows; dairy cattle; genetic parameters