Data/hora: 04/06/2024 10:57:52

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 11/08/2021
Data da última atualização: | 29/12/2021
Autoria: | STUMPF, M. T.; MCMANUS, C. M.; DALTRO, D. S.; ALFONZO, E. P. M.; DALCIN, V.; KOLLING, G. J.; VIEIRA, R. A.; LOUVANDINI, H.; FISCHER, V.; SILVA, M. V. G. B.
Afiliação: | MARCELO T. STUMPF, Universidade Federal do Rio Grande do Sul; Universidade de Brasília; Universidade Federal do Rio Grande do Sul; Universidade Federal do Rio Grande do Sul; Universidade Federal do Rio Grande do Sul; Universidade Federal do Rio Grande do Sul; Universidade de Brasília; Universidade de São Paulo; Universidade Federal do Rio Grande do Sul; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL.
Título: | Different methods of assessing udder temperature through thermography and their relation with rectal temperature.
Ano de publicação: | 2021
Fonte/Imprenta: | Tropical Animal Health and Production, v. 53, article 44, 2021.
DOI: | https://doi.org/10.1007/s11250-020-02435-y
Idioma: | Inglês
Conteúdo: | Infrared thermography of the lateral side portion of the udder was taken from 38 lactating cows in a 6-day experiment. Thermograms were analyzed using specific software with the use of eight different methods. The experiment was aimed at correlating the different methods with each other and with rectal temperature (RT), in order to suggest a method to assess udder side temperature, and also at creating regression equations to enable RT calculation through the use of thermographic data. All methods of analyzing thermograms were highly correlated; correlations between thermograms and RT were significant (P < 0.01) and above 0.840. The highest correlation was between RT and the maximum temperature obtained using a horizontal rectangle placed within the lateral (side) portion of the udder (maximum temperature in a horizontal rectangle (MHR), 0.897). With the exception of the average temperature of a horizontal rectangle, linear regression coefficients were significant (P < 0.05) and coefficients of determination were higher than 75.51%. We suggest the use of MHR to evaluate udder side temperature. The ease of accessing the side of the udder, the welfare advantages of non-invasive observations, and the high correlation with RT suggest the use of thermograms in the lateral portion of the udder to assess animals? temperature.
Palavras-Chave: | Análise de correlação; Correlation analysis; Infrared thermography; Rectal temperature; Regression equations; Temperatura retal; Termografia infravermelha; Udder side.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (25183-1) - UPC - AP - DD -  -  -  - DIS