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.
18/Nov/2021
Danilo de Souza Sanches
, Elis Regina de Moraes Garcia
, Gabriela Puhl Rodrigues
, Charles Kiefer
, Danilo Alves Marçal
, Stephan Alexander da Silva Alencar
, [...]
ABSTRACT This study aimed to evaluate different periods of chromium yeast (CrY) supplementation on growth performance and quantitative carcass characteristics of growing-finishing pigs. We used eighty barrows (Duroc/Pietran × Large White/Landrace) with an initial body weight of 24.5±2.4 kg. A completely randomized block design was used within four periods of dietary CrY supplementation (control diet: CrY-free, from 25 to 110 kg; Cr25-110 kg: diet with 0.4 mg kg−1 of CrY, from 25 to 110 kg; Cr50-110 kg: diet with 0.4 […]
Keywords: additives; carcass modifier; mineral; swine
01/May/2012
Carlos Enrique da Trindade Barbosa, Carolina Teixeira Costa Silva, Vinícius de Souza Cantarelli, Márcio Gilberto Zangeronimo, Raimundo Vicente de Sousa, Cesar Augusto Pospissil Garbossa, [...]
DOI: 10.1590/S1516-35982012000500014
Performance and carcass and cut yield of finishing pigs of three sexual categories fed diets with different levels of ractopamine were studied. Forty-eight hybrid animals (initial weight of 92.1±2.4 kg) were distributed in a completely randomised design in 3 × 2 factorial arrangement (three sexual categories: surgically castrated males, two females and immunologically castrated males – with or without 10 ppm of ractopamine), totalling six treatments and eight repetitions with one animal per experimental plot during 28 days. Ractopamine improved […]
Keywords: additives; bonus rate; carcass modifier; immunologically castrated males; swine nutrition
01/Sep/2010
Erin Caperuto de Almeida, Elias Tadeu Fialho, Paulo Borges Rodrigues, Márcio Gilberto Zangeronimo, José Augusto de Freitas Lima, Dalton de Oliveira Fontes
DOI: 10.1590/S1516-35982010000900014
It was evaluated the effect of diets supplemented or not supplemented with ractopamine and digestible lysine on the performance and carcass characteristics of finishing pigs. A total of 50 barrows and 50 gilts (90.2 kg ± 3.5 kg) were used. In the growth performance trial, a randomized block design was utilized in a 5 x 2 factorial arrangement, consisting of five levels of digestible lysine (0.68; 0.78; 0.88; 0.98 and 1.08%) and two levels of ractopamine (0 and 5 ppm), […]
Keywords: additives; amino acid; carcass modifier; nutrition
01/Aug/2009
Nikolas de Oliveira Amaral, Elias Tadeu Fialho, Vinícius de Souza Cantarelli, Márcio Gilberto Zangeronimo, Paulo Borges Rodrigues, Lúcio Vilela Carneiro Girão
DOI: 10.1590/S1516-35982009000800013
An experiment was carried out to evaluate the performance, carcass composition, cutting yields and economic viability of 5 or 10 ppm of ractopamine hydrochloride (RAC) in diets for barrows and gilts from 94 to 130 kg. Sixty commercial hybrid pigs within a gender, were individually kept in pens and assigned a randomized experimental block design, in a 3 × 2 factorial arrangement, with three levels of RAC (0; 5 and 10 ppm) and two sexs (barrows and gilts). There were […]
Keywords: additive; carcass modifier; lean meat; nutrition; performance