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/Apr/2000
Alexandre Amstalden Moraes Sampaio, Paulo de Figueiredo Vieira, Rodolfo Marques de Brito
DOI: 10.1590/S1516-35982000000200036
ABSTRACT – Ten bovines with abomasal cannulas were used to evaluate the coefficients of digestibility of diets prepared with different protein sources (dry yeast, urea and cottonseed meal). The coefficients of digestibility were obtained by the total feces collection technique and using the chromic oxide as an internal marker. In the diet with urea, an increase of digestibility coefficients for the most nutrients, when the chromic oxide technique was used, was obtaneid. The ethereal extract fraction did not show differences […]
Keywords: cottonseed meal; dry yeast; nitrogen balance; nutrients digestibility; urea