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/Dec/2004
José Aparecido Moreira, Dorinha Miriam Silber Schmidt Vitti, João Batista Lopes, Messias Alves da Trindade Neto
DOI: 10.1590/S1516-35982004000800019
The study was conducted to evaluate the biological flow of P in pigs fed diets based on corn, soybean meal, defatted rice bran (DRB) and soybean oil, with increasing phytase levels (253, 759, 1265 and 1748 PU/kg of diet), using mathematics models. The model was deterministic and compartimental, in which the gastrintestinal tract (GIT) (C1), the plasma C2, the bones (C3) and the soft tissues (liver, heart, kidney and muscle) (C4) represented the compartments. Metabolism data and kinetics of P […]
Keywords: absorption; endogenous losses; kinetics; mathematic model; radiophosphorus
José Augusto Gomes Azevêdo, José Carlos Pereira, Augusto César de Queiroz, Pedro Crescêncio Souza Carneiro, Rogério de Paula Lana, Márcio Henrique Pereira Barbosa, [...]
01/Dec/2003
José Augusto Gomes Azevêdo, José Carlos Pereira, Augusto César de Queiroz, Pedro Crescêncio Souza Carneiro, Rogério de Paula Lana, Márcio Henrique Pereira Barbosa, [...]
DOI: 10.1590/S1516-35982003000600019
The objectives of this work were to determine the chemical-bromatological composition, to determine the carbohydrates fractions and to estimate the kinetic variables of degradation of the fibrous (FC) and no-fiber carbohydrates (NFC), of three nutritional divergence sugarcane varieties. The studied varieties were SP80-1842, SP79-1011 and RB845257. The varieties of intermediary production cycle showed greater values of NDF and ADF compared to the variety of early cycle. The observed FDN/Pol (sucrose index) ratio was, respectively, 2.73; 2.82 and 2.25 for the […]
Keywords: carbohydrates; chemical-bromatological composition; kinetics; sugarcane
01/Feb/2001
João Batista Lopes, Dorinha Miriam Silber Schmidt Vitti, Adibe Luiz Abdalla, Marinéia de Lara Haddad, Agustinho Valente de Figueirêdo, Regina Célia Botéquio de Moraes
DOI: 10.1590/S1516-35982001000100024
The experiment was designed to simulate the mathematical models that relate to the phophorus (P) flow, considering the hypotheses that the endogenous phosphorus from digestive tract was absorbed in the same proportion of the dietary phosphorus and that the input and output flow of this mineral in the compartments was constant. The variables absorption, retention, endogenous P that returns to the gastrointestinal tract (GIT), dietary absorbed P, accretion, reabsorption and balance of P in bone and in soft tissues and […]
Keywords: endogenous losses; kinetics; mineral metabolism; phosphorus accretion; radiophosphorus; true absorption