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.
09/Dec/2025
Danilo Cintra Proença
, Monaliza Freitas Sena
, Janaína Gomes Araújo
, Delma Machado Cantisani Pádua
, José Henrique Stringhini
, Guilherme Wolff Bueno
, [...]
ABSTRACT This research aimed to evaluate the chemical composition and apparent digestibility coefficients (ADC) of dry matter (DM), gross energy (GE), crude protein (CP), and amino acids (AA) in plant and animal protein sources used in aquafeeds for tambaqui (Colossoma macropomum). Tested ingredients were soybean meal (SBM), cottonseed meal (CSM), corn gluten meal (CGM), fish meal (FM), meat and bone meal (MBM), and poultry by-product meal (PBM). A reference diet was formulated to contain 287 g kg−1 CP and 18.5 […]
Keywords: characidae; conventional ingredients; feed utilization; protein sources
05/Nov/2025
Felipe Nobre Façanha
, Jordana Sampaio Leite
, Alberto Jorge Pinto Nunes
ABSTRACT This study evaluated the effects of dietary crude protein (CP) and methionine (Met) levels on growth performance, feed utilization, and daily nutrient intake of juvenile Penaeus vannamei reared under 16 and 40 psu. A 2 × 3 × 2 factorial design tested six diets with CP levels (33.3 and 37.4%, as-is basis) adjusted via soy protein concentrate, and Met levels (0.6, 0.7, and 0.9%, as-is basis) supplemented with DL-methionine. Shrimp of 1.49 ± 0.11 g were fed for 91 […]
Keywords: feed utilization; methionine supplementation; Penaeus vannamei; suboptimal salinity