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Your search keyword '"M. V. G. B. da Silva"' showing total 2 results
Start Over Author "M. V. G. B. da Silva" Journal tropical animal health and production
2 results on '"M. V. G. B. da Silva"'

1. Different methods of assessing udder temperature through thermography and their relation with rectal temperature

Author

Renata Augusto Vieira, Darlene dos Santos Daltro, Concepta McManus, M. V. G. B. da Silva, Vivian Fischer, Helder Louvandini, Marcelo Tempel Stumpf, G. J. Kolling, Evelyn Priscila München Alfonzo, and Vanessa Calderaro Dalcin

Subjects
Maximum temperature, medicine.anatomical_structure, Food Animals, Thermography, Correlation analysis, Linear regression, medicine, Animal Science and Zoology, Rectal temperature, Lateral side, Udder, Mathematics, Biomedical engineering
Abstract

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

Published
2020
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2. Different methods of assessing udder temperature through thermography and their relation with rectal temperature

Author

Marcelo T, Stumpf, C M, McManus, D S, Daltro, E P M, Alfonzo, V, Dalcin, G J, Kolling, R A, Vieira, H, Louvandini, V, Fischer, and M V G B, da Silva

Subjects
Mammary Glands, Animal, Thermography, Animals, Cattle, Female, Skin Temperature, Body Temperature
Abstract

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.

Published
2020

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