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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
17/02/2016 |
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Data da última atualização: |
03/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALFONZO, E. P.; SILVA, M. V. G. B.; SANTOS, D. D. dos; STUMPF, M. T.; DALCIN, V. C.; KOLLING, G.; FISCHER, V.; McMANUS, C. M. |
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Afiliação: |
E. P. ALFONZO, UFRGS; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; Daltro D. dos Santos, UFRGS; M. T. STUMPF, UFRGS; V. C. DALCIN, UFRGS; G. KOLLING, UFRGS; V. FISCHER, UFRGS; M. C. McMANUS, UFRGS; UnB. |
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Título: |
Relationship between physical attributes and heat stress in dairy cattle from different genetic groups. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
International Journal of Biometeorology, v. 60, n. 2, p. 245-353, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Dairy cattle raised under harsh conditions have to adapt and prevent heat stress. The aim of this study was to evaluate physical characteristics and their association with heat tolerance in different genetic groups of dairy cattle. Thickness of the skin and coat, length and number of hairs, body measurements, as well as physiological parameters and body temperatures by infrared thermography were determined in 19 Holstein and 19 Girolando (½ and ¾ Holstein) cows. The Holstein cattle were less tolerant to heat stress than Girolando (GH50 and GH75 Holstein), because of the difficulty in dissipating heat due to the larger body size, as well as thicker and longer hairs. The correlations between physical characteristics, physiological parameters, and thermographic measurements prove to be inconsistent among genetic groups and therefore are not predictive of heat tolerance, while the regressions of morphometric characteristics on physiological and thermographic measures were not significant. Thus, the physical characteristics were not good predictors of physiological indices and thermographic temperature and so should not be used. |
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Palavras-Chave: |
Coat and cows; Tolerance. |
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Thesaurus Nal: |
thermography. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139252/1/Cnpgl-2015-IntJBiom-Relationship.pdf
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Marc: |
LEADER 01866naa a2200241 a 4500
001 2037406
005 2024-02-03
008 2015 bl uuuu u00u1 u #d
100 1 $aALFONZO, E. P.
245 $aRelationship between physical attributes and heat stress in dairy cattle from different genetic groups.$h[electronic resource]
260 $c2015
520 $aDairy cattle raised under harsh conditions have to adapt and prevent heat stress. The aim of this study was to evaluate physical characteristics and their association with heat tolerance in different genetic groups of dairy cattle. Thickness of the skin and coat, length and number of hairs, body measurements, as well as physiological parameters and body temperatures by infrared thermography were determined in 19 Holstein and 19 Girolando (½ and ¾ Holstein) cows. The Holstein cattle were less tolerant to heat stress than Girolando (GH50 and GH75 Holstein), because of the difficulty in dissipating heat due to the larger body size, as well as thicker and longer hairs. The correlations between physical characteristics, physiological parameters, and thermographic measurements prove to be inconsistent among genetic groups and therefore are not predictive of heat tolerance, while the regressions of morphometric characteristics on physiological and thermographic measures were not significant. Thus, the physical characteristics were not good predictors of physiological indices and thermographic temperature and so should not be used.
650 $athermography
653 $aCoat and cows
653 $aTolerance
700 1 $aSILVA, M. V. G. B.
700 1 $aSANTOS, D. D. dos
700 1 $aSTUMPF, M. T.
700 1 $aDALCIN, V. C.
700 1 $aKOLLING, G.
700 1 $aFISCHER, V.
700 1 $aMcMANUS, C. M.
773 $tInternational Journal of Biometeorology$gv. 60, n. 2, p. 245-353, 2015.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| 9. |  | ABREU, U. G. P. de; McMANUS, C. Conservation of pantaneiro cattle. In: GLOBAL CONFERENCE ON CONSERVATION OF DOMESTIC ANIMAL GENETIC RESOURCES, 5., 2000, Brasilia. Proceedings... Brasilia: Embrapa Genetic Resources and Biotechnology, 2000. CD-ROM. (Embrapa Genetic Resources and Biotechnology. Document, 49). (P-38).| Biblioteca(s): Embrapa Pantanal. |
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| 15. | | PEREZ, K. S. S.; RAMOS, M. L. G.; McMANUS, C. Carbono da biomassa microbiana em solo cultivado com soja sob diferentes sistemas de manejo nos Cerrados. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 6, p. 567-573, junho 2004 Título em inglês: Microbial biomass carbon in soil cultivated with soybean, under different management systems in Cerrado.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 339 | |
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