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/Jun/2008
Polyana Albino Silva Machado, Sebastião de Campos Valadares Filho, Rilene Ferreira Diniz Valadares, Edenio Detmann, Mônica Lopes Paixão, Douglas dos Santos Pina
DOI: 10.1590/S1516-35982008000600024
The objective of this trial was to determine the intake and the total, ruminal and intestinal apparent digestibilidade of dry matter (DM) and its components: organic matter (OM), crude protein (CP), ether extract (EE), in neutral detergent fiber (NDF) and no-fiber carbohydrates (NFC) of the elephantgrass in different regrowth ages and to quantify the microbial protein production. Four crossbred steers fitted with ruminal and abomasal cannula were fullfed with elephantgrass and mineral salt. The experiment was evaluated considering the group […]
Keywords: intake; nutrients; partial digestibility; roughage; total digestibility
01/Jun/2002
Luís Carlos Vinhas Ítavo, Sebastião de Campos Valadares Filho, Fabiano Ferreira da Silva, Rilene Ferreira Diniz Valadares, Maria Ignez Leão, Paulo Roberto Cecon, [...]
DOI: 10.1590/S1516-35982002000600026
It was aimed to study the intake and total and partial nutrients digestibilities in bovine. It were used five 165 kg growing Nelore bulls, rumen, abomasum and ileum fistulated. A randomized blocks design with four treatments and five collection periods was used. The treatments consisted of four concentrate levels (20, 40, 60 and 80%). The roughage used was Tifton 85′ Bermuda grass hay (Cynodon dactylon (L.) Pers.). The NDF and ADF intakes only presented linear reduction with the increase of […]
Keywords: concentrate level; intake; partial digestibility; total digestibility
01/Sep/1999
Lúcia Maria Zeoula, Ivanor Nunes do Prado, Ulysses Cecato, Antonio Ferriani Branco, Júlio Cesar Damasceno, Marcio Munemori Watanabe, [...]
DOI: 10.1590/S1516-35981999000500035
The objective of this study was to evaluate the intake, apparent digestibility coefficient (ADC), nitrogen balance, pH and nitrogen ammonia concentration (N-NH3) in the ruminal fluid of sheep. The animals were fed diets composed by concentrates with different ruminal degradability of the fractions starch and protein from the used sources: starch with high (triticale) and low (corn) ruminal degradability combined with nitrogen (N) sources of high (canola meal plus urea) and low (cottonseed meal plus meat and bone meal) ruminal […]
Keywords: ammonia; degradability; nitrogen; pH; starch; total digestibility