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| McManus,Concepta; Pinto,Bruno Freitas; Martins,Rafhael Felipe Saraiva; Louvandini,Helder; Paiva,Samuel Rezende; Braccini Neto,José; Paim,Tiago do Prado. |
| 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 lamb), weight of carcass and weight of female lambs sold for reproduction. Regardless of the index used (profitability or yield) or system (L, M or H), the economic weights are larger for the number of lambs weaned per ewe. With improvement in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Correlations; Costs; Heritability; Profit; Revenue. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200014 |
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| McManus,Concepta; Santos,Sandra Aparecida; Dallago,Bruno Stéfano Lima; Paiva,Samuel Rezende; Martins,Rafhael Felipe Saraiva; Braccini Neto,José; Marques,Pedro Rocha; Abreu,Urbano Gomes Pinto de. |
| A genealogical analysis of registered Pantaneiro horses was carried out with 3647 males and 6794 females. Of these animals, 50.66% had identified sires and 48.86% identified dams. The number of pedigrees increased over the generations, with higher registration of parents of sires than dams. Two municipalities are responsible for almost 70% of all registers: i) Poconé (Mato Grosso State), where the headquarters of the breeders association is located and ii) Corumbá (Mato Grosso do Sul State), where EMBRAPA Pantanal conducts its research. The mean inbreeding was 0.04% and average relatedness was 0.13%. Mean generation interval was 8.20 years. There is moderate to high genetic differentiation between farms (15% of total genetic variation) while between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average relatedness; Effective population size; Farm; Inbreeding; Municipality; Wright's statistics. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600004 |
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| Paim,Tiago do Prado; Martins,Rafhael Felipe Saraiva; Cardoso,Cyntia; Dallago,Bruno; Louvandini,Helder; McManus,Concepta. |
| There is an abundance of thermal indices with different input parameters and applicabilities. Infrared thermography is a promising technique for evaluating the response of animals to the environment and differentiating between genetic groups. Thus, the aim of this study was to evaluate superficial body temperatures of lambs from three genetic groups under different environmental conditions, correlating these with thermal comfort indices. Forty lambs (18 males and 22 females) from three genetic groups (Santa Inês, Ile de France × Santa Inês and Dorper × Santa Inês) were exposed to three climatic conditions: open air, housed and artificial heating. Infrared thermal images were taken weekly at 6h, 12h and 21h at the neck, front flank, rear flank, rump, nose,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian savanna; Bioclimatology; Thermal stress; Wind protection; Artificial warming. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500002 |
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