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.
Isabela Pena Carvalho de Carvalho, Edenio Detmann, Mário Fonseca Paulino, Hilário Cuquetto Mantovani, Sebastião de Campos Valadares Filho, Daiany Iris Gomes, [...]
01/Mar/2012
Isabela Pena Carvalho de Carvalho, Edenio Detmann, Mário Fonseca Paulino, Hilário Cuquetto Mantovani, Sebastião de Campos Valadares Filho, Daiany Iris Gomes, [...]
DOI: 10.1590/S1516-35982012000300031
Two experiments were carried out to evaluate the effect of supplementation with different nitrogenous compounds on the activities of carboxymethil cellulase (CMCase) and glutamate dehydrogenase (GDH). In the first experiment, four treatments were evaluated in vitro: cellulose, cellulose with casein, cellulose with urea, and cellulose with casamino acids. After 6, 12 and 24 hours of incubation, CMCase and GDH activity, pH, and concentrations of ammonia nitrogen (AN) and microbial protein were measured. In the three incubation periods, the concentration of […]
Keywords: fibrolytic enzymes; nitrogen assimilation; protein effect; rumen microbiology
01/Jun/2005
Daniele Rebouças Santana Loures, Luiz Gustavo Nussio, Solidete de Fátima Paziani, André de Faria Pedroso, Lucas José Mari, José Leonardo Ribeiro, [...]
DOI: 10.1590/S1516-35982005000300004
The present trial aimed to study the effects of forage wilting or the addition fibrolytic enzymes to the Tanzaniagrass (Panicum maximum Jacq. cv. Tanzania) during the ensiling process or after the silage unloading and before animal feeding. The fermentation and ruminal kinetics parameters, animal ingestive behavior, dry matter intake and in vivo nutrient digestibilities in bovine were measured. Treatments consisted of forage ensiling as described: A – wilted forage without enzymes; B – fresh forage without enzymes; C – wilted […]
Keywords: digestibility; direct-fed application; fibrolytic enzymes; ingestive behavior; crossbreed cows; wilting