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| Maia Filho,Geraldo Helber Batista; Barbosa,Fabiano Alvim; Emerick,Lucas Luz; Souza,Rafahel Carvalho; Figueiredo,Tadeu Chaves; Azevedo,Henrique de Oliveira; Cavalcanti,Luigi Francis Lima; Mandarino,Raphael Amazonas. |
| ABSTRACT The objective of this experimental study was to evaluate the effects of different dietary energy sources on the carcass and meat traits of feedlot Nellore bulls. A total of 48 Nellore bulls at 32 months of age with 354.35±19.56 kg body weight were studied for 85 days. The bulls were allotted to four groups of 12 individuals: Whole corn grain - diet based on whole corn grain; Ground corn - diet based on ground corn grain; Citrus pulp - diet based on citrus pulp; and Steam-flaked corn - diet based on steam-flaked corn. Diets did not influence carcass quality or meat quality. Average values for fat depth, rib eye area, shear force, total cooking losses, and carcass yield were 4.97 mm, 74.71 cm2, 5.85 kgf, 26.82%, and 52.0%, respectively. Based on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fat; High-concentrate diets; Intake; Rib eye area; Tenderness. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000500265 |
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| Costa,Patrícia Monteiro; Barbosa,Fabiano Alvim; Alvarenga,Ramon Costa; Guimarães,Sérgio Teixeira; Lampeão,Ângelo André; Winkelströter,Larissa Kretli; Maciel,Isabella Cristina de Faria. |
| Abstract: The objective of this work was to evaluate the performance of crossbred steers post-weaned in an integrated crop-livestock system (ICL) and finished in a feedlot, fed either a high-level concentrate diet or whole corn with no roughage. Weaned calves of two breed groups - ½ Angus × ½ Nellore, and ½ Charolais × ¼ Angus × ¼ Nellore - were allotted in a completely randomized experimental design (CRD). During the rainy season, the ½ Angus × ½ Nellore animals showed a higher performance than the ½ Charolais × ¼ Angus ×¼ Nellore ones, with 0.748 and 0.490 kg average daily gain, respectively. The productivity in the post-weaning period was 926 kg ha-1 body weight in a 11-month period, in the ICL system. Subsequently, the animals were confined and fed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Crossbreeding; Feed intake; Integrated systems; Intensification.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000500355 |
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| Santana,Ronan Aparecido Valadares; Barbosa,Fabiano Alvim; Andrade,Venício José de; Molina,Patrícia Caires; Maia Filho,Geraldo Helber Batista; Leão,Juliana Mergh. |
| ABSTRACT The study evaluated the average return on invested capital (ROIC) in function of the variations in the historical prices of beef cattle and the odds of return on that capital gain within the system of beef cattle fattening on a farm in the state of Minas Gerais, Brazil, from 2004 to 2007. To calculate the risk of ROIC, monthly data of beef cattle prices (BM&F) were used from July 1997 to December 2013, revised by the General Price Index of the Fundação Getúlio Vargas in December 2013. The corrected data were divided into five classes that correspond to the risk scenarios. In light of these classes, the observed frequencies and their respective probabilities were calculated. The cumulative and updated ROIC were -3.02 and 0.24%, respectively.... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Economic; Profitability; Rate of return. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200788 |
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| Azevedo,Henrique de Oliveira; Barbosa,Fabiano Alvim; Graça,Décio Souza; Paulino,Pedro Veiga Rodrigues; Souza,Rafahel Carvalho; Lavall,Thiago José Piron; Bicalho,Filipe Lage. |
| Resumo: O objetivo deste trabalho foi avaliar o efeito da substituição da proteína bruta do farelo de soja pela ureia de liberação lenta sobre o desempenho, as características de carcaça e o custo alimentar de bovinos Nelore terminados em confinamento. Foram utilizados 48 machos inteiros da raça Nelore, com idade média de 22 meses e peso inicial de 367,95±18,52 kg. Utilizou-se o delineamento inteiramente casualizado com quatro tratamentos: FS, 8,91% de farelo de soja e 0% de ureia de liberação lenta (ULL); OP33, 6,01% de farelo de soja e 0,46% de ULL; OP67, 2,94% de farelo de soja e 0,94% de ULL; e OP100, 0% de farelo de soja e 1,41% de ULL. Não houve diferença entre os tratamentos para as variáveis peso inicial, peso final, ganho médio diário, ganho de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ganho de peso vivo; Nitrogênio não proteico; Proteína degradável no rúmen; Ureia protegida. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001101079 |
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