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.
Maria Andréa Borges Cavalcante, Odilon Gomes Pereira, Sebastião de Campos Valadares Filho, Karina Guimarães Ribeiro, Fernanda Helena Martins Chizzotti, Dalton Henrique Pereira
01/Dec/2005
Maria Andréa Borges Cavalcante, Odilon Gomes Pereira, Sebastião de Campos Valadares Filho, Karina Guimarães Ribeiro, Fernanda Helena Martins Chizzotti, Dalton Henrique Pereira
DOI: 10.1590/S1516-35982005000700006
The objective of this trial was to study the effects of different dietary levels of crude protein (CP) on intake and apparent total tract, intestinal, and ruminal digestibilities of nutrients in Holstein x Zebu steers. The diets contained [dry matter (DM) basis]: 10.5, 12, 13.5, or 15% of CP and a forage (Tifton 85):concentrate ratio of 65:35. Four castrated animals averaging 487.3 kg of body weight at the beginning of the trial and fitted with both abomasum and rumen cannulas […]
Keywords: acid detergent fiber; acid detergent insoluble nitrogen; lignin; neutral detergent fiber; neutral detergent insoluble nitrogen; nonfiber carbohydrate
01/Jun/2005
Maria Andréa Borges Cavalcante, Odilon Gomes Pereira, Sebastião de Campos Valadares Filho, Karina Guimarães Ribeiro
DOI: 10.1590/S1516-35982005000300001
The intake and total apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF) and nonfiber carbohydrate (NFC) with and without correction for ashes and crude protein, the weight gain, carcass yield and the food conversion were estimated in beef cattle fed with diets containing four dietary crude protein levels (10.5; 12; 13.5 and 15%), in dry matter base. There were used 24 non-castrated Zebus steers, with initial mean live weight […]
Keywords: carcass yield; crude protein; nonfiber carbohydrate; passage rate; weight gain