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.
Gherman Garcia Leal de Araújo, José Fernando Coelho da Silva, Sebastião de Campos Valadares Filho, Oriel Fajardo de Campos, Ricardo Dias Signoretti, Silvia Helena Nogueira Turco
01/Dec/2001
Gherman Garcia Leal de Araújo, José Fernando Coelho da Silva, Sebastião de Campos Valadares Filho, Oriel Fajardo de Campos, Ricardo Dias Signoretti, Silvia Helena Nogueira Turco
DOI: 10.1590/S1516-35982001000700020
The effects of different levels of roughage on intake and apparent absorption of calcium (Ca), phosphorus (P), sodium (Na), potassium (K) and magnesium (Mg) were studied. Forty Holstein x Zebu calves, with initial average live weight of 60 kg, allotted to a completely randomized design, were fed concentrate and chopped coastcross (Cynodon dactylon) grass hay ad libitum in the following levels: 10; 25; 40; 55 e 90%, on a DM basis. The coefficients of apparent absorption were obtained by one […]
Keywords: apparent absorption; calcium; calves; feed intake; magnesium; phosphorus; potassium; roughage; sodium
Ricardo Dias Signoretti, José Fernando Coelho da Silva, Sebastião de Campos Valadares Filho, José Carlos Pereira, Paulo Roberto Cecon, Augusto César de Queiroz, [...]
01/Feb/1999
Ricardo Dias Signoretti, José Fernando Coelho da Silva, Sebastião de Campos Valadares Filho, José Carlos Pereira, Paulo Roberto Cecon, Augusto César de Queiroz, [...]
DOI: 10.1590/S1516-35981999000100026
This study was to evaluate the effects of different levels of forage in the diet on the intake and apparent absorption of calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K) and sodium (Na). Thirty five pure Holstein bull calves, 60 days old with initial average live weight (LW) of 78 kg, were allotted in a completely randomized experimental design with nine replicates per diet, except for the 10% forage diet, with eight replications. The animals were ad libitum fed with […]
Keywords: apparent absorption; forage level; Holstein calf; intake; mineral