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/Oct/2017
Natália Ludmila Lins Lima, Carolina Resende de Freitas Ribeiro, Hemilly Cristina Menezes de Sá, Izac Leopoldino-Júnior, Luigi Francis Lima Cavalcanti, Ronan Aparecido Valadares Santana, [...]
DOI: 10.1590/S1806-92902017001000005
ABSTRACT The objective of this study was to evaluate residual feed intake (RFI), residual intake and body weight gain (RIG) and their relationship with other traits of efficiency, performance, and economic analysis of sheep. Lambs (n = 102) were evaluated during 56 days and a herd consisting of 500 ewes was simulated with the mean of dry matter intake (DMI) and final body weight of the lambs, the same as that of the experimental lambs. The lambs were fed hay-based […]
01/Dec/2011
Concepta McManus, Bruno Freitas Pinto, Rafhael Felipe Saraiva Martins, Helder Louvandini, Samuel Rezende Paiva, José Braccini Neto, [...]
DOI: 10.1590/S1516-35982011001200014
Three production systems for sheep (Low – L, Medium – M and High – H technology), with increasing technological levels, were studied under conditions in the Center-west of Brazil, to determine economic weights and selection indices of important traits. Receipts and costs were simulated using an economic simulator to calculate the structure of the operational costs. Only characteristics that were responsible for more than 10% of the profit were studied, which included: number of weaned lambs, food consumption (ewe and […]
Keywords: correlations; costs; heritability; profit; revenue
01/Feb/2011
Luiz Marques da Silva Ayroza, Elizabeth Romagosa, Daercy Maria Monteiro de Rezende Ayroza, João Donato Scorvo Filho, Fernando André Salles
DOI: 10.1590/S1516-35982011000200001
It was performed in this work the economic analysis of juvenile Nile Tilapia farming using different stocking densities. The experiment was carried out in an aquaculture area, using random block designs with four stocking densities (100, 200, 300 and 400 fish m-3), evaluated with six replicates, in two rearing periods: from March to April, 2005 (52 days – initial weight 43.08 ± 2.98 and final weight of 262.14 ± 47.86 g) and from March to April 2006 (58 days – […]
Keywords: economical variables; farm fishing; intensive system; revenue; zootecnic parameters