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/Mar/2014
Cleiton Pagliari Sangali, Luís Daniel Giusti Bruno, Ricardo Vianna Nunes, Adhemar Rodrigues de Oliveira Neto, Paulo Cesar Pozza, Taciana Maria Moraes de Oliveira, [...]
DOI: 10.1590/S1516-35982014000300006
The objective of this trial was to evaluate the bioavailability of DL-2-hydroxy-4-(methyl) butanoic acid (DL-HMBA) and a polyherbal ingredient (PHI) in relation to DL-methionine (DLM) on broilers. Nine hundred male broiler chickens of the Cobb 500 strain were fed from 22 to 42 days of age either a basal diet without industrial methionine supplementation or the basal diet supplemented with DL-HMBA at one of three levels (0.143, 0.286 and 0.429%) or DLM at one of three levels (0.093, 0.186 and […]
Keywords: dl-2-hydroxy-4-methylthio butanoic acid; dl-methionine; polyherbal ingredient; sulphur amino acids
01/Sep/2009
Maurício Tárcio dos Santos Viana, Fernando Teixeira Albino, Horacio Santiago Rostagno, Sergio Luiz de Toledo Barreto, Débora Cristine de Oliveira Carvalho, Paulo Cezar Gomes
DOI: 10.1590/S1516-35982009000900016
The objective of this study was to evaluate the effect of two sources of methionine, DL-Methionine (DLM – 99%) and Methionine Hydroxy Analogue Free Acid (MHA-FA – 88%), at three different levels of supplementation of this amino acids in commercial diets on the performance of broiler chickens. A total of 1.232 commercial Ross broilers was used, from 01 to 47 days of age, and allotted to a complete randomized design in a 2 X 3 factorial (source methionine X supplementation […]
Keywords: biological efficacy; broiler chicks; methionine source; performance; sulphur amino acids
01/Oct/2007
Adhemar Rodrigues de Oliveira Neto, Rita Flávia Miranda de Oliveira, Juarez Lopes Donzele, Sergio Luiz de Toledo Barreto, Roberta Gomes Marçal Vieira Vaz, Eliane Gasparino
DOI: 10.1590/S1516-35982007000600019
The experiment was carried out to determine the requirement of methionine + cystine (met + cys) for broilers from 22-to-42-day-old kept under thermoneutral environment (23.5°C). A total of 240 Avian Farm male broilers, with 827 g average initial weight were distributed in a randomized experimental design with five levels of met + cys (0.659, 0.704, 0.750, 0.796, and 0.841%), six replications and eight birds per experimental unit. The increase of met + cys level influenced positively feed: gain ratio, met […]
Keywords: broiler; nutritional requirement performance; sulphur amino acids; thermal environment