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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
23/11/2015 |
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Data da última atualização: |
15/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SILVA, J. A. R. da; ARAÚJO, A. A. de; LOURENÇO JÚNIOR, J. D. B.; SANTOS, N. DE F. A. DOS; GARCIA, A. R.; OLIVEIRA, R. P. de. |
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Afiliação: |
JAMILE ANDRÉA RODRIGUES DA SILVA, INSTITUTE OF ANIMAL HEALTH AND PRODUCTION, FEDERAL RURAL UNIVERSITY OF THE AMAZON - UFRA; AIRTON ALENCAR DE ARAÚJO, FACULTY OF VETERINARY, CEARÁ STATE UNIVERSITY /FORTALEZA; JOSÉ DE BRITO LOURENÇO JÚNIOR, CENTER OF NATURAL SCIENCES AND TECHNOLOGY, PARÁ STATE UNIVERSITY - UEPA; NÚBIA DE FÁTIMA ALVES DOS SANTOS, INSTITUTE OF ANIMAL HEALTH AND PRODUCTION, FEDERAL RURAL UNIVERSITY OF THE AMAZON - UFRA; ALEXANDRE ROSSETTO GARCIA, CPPSE; RAIMUNDO PARENTE DE OLIVEIRA, CPATSA. |
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Título: |
Thermal comfort indices of female Murrah buffaloes reared in the Eastern Amazon. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
International Journal of Biometeorology, v. 59, n. 9, p. 1261-1267, sep. 2015. |
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DOI: |
10.1007/s00484-014-0937-y |
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Idioma: |
Inglês |
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Conteúdo: |
The study aimed to develop new and more specific thermal comfort indices for buffaloes reared in the Amazon region. Twenty female Murrah buffaloes were studied for a year. The animals were fed in pasture with drinking water and mineral supplementation ad libitum. The following parameters were measured twice a week in the morning (7 AM) and afternoon (1 PM): air temperature (AT), relative air humidity (RH), dew point temperature (DPT), wet bulb temperature (WBT), black globe temperature (BGT), rectal temperature (RT), respiratory rate (RR), and body surface temperature (BST). The temperature and humidity index (THI), globe temperature and humidity index (GTHI), Benezra's comfort index (BTCI), and Ibéria's heat tolerance index (IHTI) were calculated so they could be compared to the new indices. Multivariate regression analyses were carried out using the canonical correlation model, and all indices were correlated with the physiological and climatic variables. Three pairs of indices (general, effective, and practical) were determined comprising the buffalo comfort climatic condition index (BCCCI) and the buffalo environmental comfort index (BECI). The indices were validated and a great agreement was found among the BCCCIs (general, effective, and practical), with 98.3 % between general and effective a.nd 92.6 % between general and practical. A significant correlation (P < 0.01) was found between the new indices and the physiological and climatic variables, which indicated that these may be used in pairs to diagnose thermal stress in buffaloes reared in the Amazon. MenosThe study aimed to develop new and more specific thermal comfort indices for buffaloes reared in the Amazon region. Twenty female Murrah buffaloes were studied for a year. The animals were fed in pasture with drinking water and mineral supplementation ad libitum. The following parameters were measured twice a week in the morning (7 AM) and afternoon (1 PM): air temperature (AT), relative air humidity (RH), dew point temperature (DPT), wet bulb temperature (WBT), black globe temperature (BGT), rectal temperature (RT), respiratory rate (RR), and body surface temperature (BST). The temperature and humidity index (THI), globe temperature and humidity index (GTHI), Benezra's comfort index (BTCI), and Ibéria's heat tolerance index (IHTI) were calculated so they could be compared to the new indices. Multivariate regression analyses were carried out using the canonical correlation model, and all indices were correlated with the physiological and climatic variables. Three pairs of indices (general, effective, and practical) were determined comprising the buffalo comfort climatic condition index (BCCCI) and the buffalo environmental comfort index (BECI). The indices were validated and a great agreement was found among the BCCCIs (general, effective, and practical), with 98.3 % between general and effective a.nd 92.6 % between general and practical. A significant correlation (P < 0.01) was found between the new indices and the physiological and climatic variables, which indicated that ... Mostrar Tudo |
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Thesaurus NAL: |
animal welfare; buffaloes; equations; thermal stress; thermoregulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
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024 7 $a10.1007/s00484-014-0937-y$2DOI
100 1 $aSILVA, J. A. R. da
245 $aThermal comfort indices of female Murrah buffaloes reared in the Eastern Amazon.$h[electronic resource]
260 $c2015
520 $aThe study aimed to develop new and more specific thermal comfort indices for buffaloes reared in the Amazon region. Twenty female Murrah buffaloes were studied for a year. The animals were fed in pasture with drinking water and mineral supplementation ad libitum. The following parameters were measured twice a week in the morning (7 AM) and afternoon (1 PM): air temperature (AT), relative air humidity (RH), dew point temperature (DPT), wet bulb temperature (WBT), black globe temperature (BGT), rectal temperature (RT), respiratory rate (RR), and body surface temperature (BST). The temperature and humidity index (THI), globe temperature and humidity index (GTHI), Benezra's comfort index (BTCI), and Ibéria's heat tolerance index (IHTI) were calculated so they could be compared to the new indices. Multivariate regression analyses were carried out using the canonical correlation model, and all indices were correlated with the physiological and climatic variables. Three pairs of indices (general, effective, and practical) were determined comprising the buffalo comfort climatic condition index (BCCCI) and the buffalo environmental comfort index (BECI). The indices were validated and a great agreement was found among the BCCCIs (general, effective, and practical), with 98.3 % between general and effective a.nd 92.6 % between general and practical. A significant correlation (P < 0.01) was found between the new indices and the physiological and climatic variables, which indicated that these may be used in pairs to diagnose thermal stress in buffaloes reared in the Amazon.
650 $aanimal welfare
650 $abuffaloes
650 $aequations
650 $athermal stress
650 $athermoregulation
700 1 $aARAÚJO, A. A. de
700 1 $aLOURENÇO JÚNIOR, J. D. B.
700 1 $aSANTOS, N. DE F. A. DOS
700 1 $aGARCIA, A. R.
700 1 $aOLIVEIRA, R. P. de
773 $tInternational Journal of Biometeorology$gv. 59, n. 9, p. 1261-1267, sep. 2015.
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