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/Jun/2012
Maria Cristina de Oliveira, Rossane Pereira da Silva, Liomar Sousa Araújo, Valdevino Rodrigues da Silva, Elis Aparecido Bento, Diones Montes da Silva
DOI: 10.1590/S1516-35982012000600021
This experiment assessed the effect of feed restriction in rabbits on performance and economic viability of the activity. Sixty New Zealand White rabbits, weaned at 33 days and slaughtered at 81 days of age, were used. The design was of randomized blocks with four treatments and five replications. The treatments were, as follows: 1 – free feeding, 2 – feed restriction from 35 to 40 days of age (50 g/d/rabbit), 3 – feed restriction from 54 to 61 days of […]
Keywords: animal nutrition; compensatory growth; economic viability
01/Oct/2011
Jefferson Costa de Siqueira, Nilva Kazue Sakomura, Juliano César de Paula Dorigam, Gabriela Geraldi Mendonça, Fernando Guilherme Perazzo Costa, João Batista Kochenborger Fernandes, [...]
DOI: 10.1590/S1516-35982011001000017
The objective of this study was to estimate the optimum digestible lysine levels in diets for broilers on growing (22 to 35 days) and finishing (35 to 42 days) phases, based on economic analysis of food. Two experiments were conducted, each one using 600 Cobb 500 male broilers, distributed in a completely randomized design with five treatments and six replicates of 20 birds. Treatments consisted of increasing digestible lysine levels in the diet. The feed:gain relation data were submitted to […]
Keywords: amino acids; economic viability; performance; poultry science; profitability
01/Dec/2010
Cinthia Eyng, Ricardo Vianna Nunes, Paulo Cesar Pozza, Wagner Thiago Mozer da Silva, Franciele Clenice Navarini, Jeffersson Rafael Henz
DOI: 10.1590/S1516-35982010001200016
For performance evaluation of broiler chickens fed different levels of meal of tilapia industrial filleting waste (0, 2, 4, 6 and 8%), 480 chicks at 1 day of age were used in a completely randomized design with five experimental diets, six replicates and 16 birds per experimental unit. Weight gain, final weight, average feed intake, feed conversion and mortality from 1 to 21 days of age and from 1 to 42 days of age were evaluated and in the end […]
Keywords: alternative food; economic viability; fish meal; performance
01/Jul/2002
Alexandre Orio Bastos, Luiz de Carvalho Landell Filho, Milton Passipieri, João Francisco Pereira Bastos
DOI: 10.1590/S1516-35982002000700018
A trial was carried out to determine the viability of pearl millet inclusion (Pennisetum glaucum (L.)R. Brown) on pigs feeding, in the growing and finishing phases, considering their effects on daily feed intake, average daily gain and feed conversion. The effect of increasing dietary pearl millet levels on the carcass characteristics was also observed. Sixty barrows, comercial hybrids, averaging 22.7kg were used. A completely randomized experimental design, with five treatments (0, 15, 30, 45 and 60% pearl millet in the […]
Keywords: alternative feed; carcass characteristics; economic viability; performance