CHANGES IN UDDER SKIN SURFACE TEMPERATURE OF DAIRY COWS CAUSED BY MACHINE MILKING
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2017, Vol 42, Issue 334
Abstract
The aim of the present study was to indicate if machine milking significantly affects udder skin surface temperature (SST) to establish the most optimum time for SST measurement in mastitis detection. A total of 21 healthy Polish Holstein-Friesian Black-and- White cows were used in the study. The thermograms were recorded from the rear and bottom of the udders in a milking parlour before and after milking in the same cows. Two geometric tools (circles and squares) available in a computer program were used to measure an average SST, its minimum, maximum and standard deviation. The mean value of the average temperature of circles was higher (P ≤ 0.05) before milking (36.48ºC and 36.61ºC for the right and left hind quarter, respectively) than after it (36.24ºC and 36.09ºC for the right and left hind quarter, respectively). Also, the mean temperature of squares for the left hind quarter was higher (P ≤ 0.05) before milking (36.58ºC) than after it (35.88ºC). There was only one significant difference (P ≤ 0.05) in the temperature (circles) between the left and right hind quarters (the range of the temperature after milking). Consequently, temperature measurement performed for potential mastitis detection should always be made at the same moment, as milking significantly affects skin surface temperature of the udder.
Authors and Affiliations
Maria SOROKO, Daniel ZABORSKI, Wilhelm GRZESIAK, Mirosław PARAFINIUK, Andrzej MODRZEJEWSKI
Keywords
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