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/Aug/2007
José Antônio Obeid, Odilon Gomes Pereira, Dalton Henrique Pereira, Sebastião de Campos Valadares Filho, Isabela Pena Carvalho de Carvalho, José Maria Martins
DOI: 10.1590/S1516-35982007000400023
The intakes and apparent total tract and partial digestibility of nutrients in Holstein x Zebu steers fed diets formulated with four dietary CP levels (9,11,13, and 15%), in DM basis were evaluated. Four rumen and abomasum cannulated castrated animals, averaging initial weight of 343.5 kg, were allotted to a 4 x 4 Latin square design, with four animal and four periods. Each experimental period lasted 18 days (first 10 for adaptation period). The dietary CP levels did not affect the […]
Keywords: acid detergent fiber; acid detergent insoluble nitrogen; lignin; neutral detergent fiber; neutral detergent insoluble nitrogen; non-fibrous carbohydrate
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