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/2001
Kátia Cylene Guimarães, Antonio Ferriani Branco, Lúcia Maria Zeoula, Ivanor Nunes do Prado, Gisele Fernanda Mouro, Fábio Jose Maia, [...]
DOI: 10.1590/S1516-35982001000300038
The objective of this research was to evaluate the effects of two experimental periods and two forage levels in the diet on the total and parcial apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), gross energy (GE) and starch. Four Holstein steers, averaging two years old and 340 kg of body weight, ruminally and duodenally cannulated, were used. The experimental design was a 4 x 4 latin square […]
Keywords: digestibility; experimental period; forage level
01/Jun/2001
Kátia Cylene Guimarães, Antonio Ferriani Branco, Lúcia Maria Zeoula, Claudete Regina Alcalde, Fábio Luís Fregadolli, Saul Ferreira Caldas Neto
DOI: 10.1590/S1516-35982001000300037
The objectives of this research were to evaluate the effects of two forage levels and two experimental periods on the microbial efficiency, ruminal ammonia concentration, the ruminal pH, duodenal nitrogen (N) flux and digestibility. Four Holstein steers, two years old and 340 kg of body weight, ruminally and duodenally cannulated, were used. The experimental design was a 4 x 4 latin square and animals received four treatments as folowing: two levels of forage (70 and 30%) and two experimental periods […]
Keywords: ammonia; experimental period; forage level; nitrogen; pH