Abstract
The amount of collagen and elastic fibres near the Fürstenberg's rosette in histological sections of bovine teats was estimated using the ImageJ image processing software. This method holds promise for comparing tissue types within and between sections but it was not a reliable way to quantify the absolute amount of tissue types in a sample. The amount of elastic fibres and collagen was similar in cow teats with a history or acute case of mastitis infection and in non-infected cows, but this could not be statistically tested due to limitations in the study material.
Highlights
Along with the continuous regeneration of bovine teat canal lining to replace the keratinized superficial strata of the epithelium, tissues ensuring the proper closing of the Fürstenberg's rosette play a major role in the prevention of both milk leakage and the entry of bacteria into the teat sinus
The use of an image processing software proved a promising method for estimating bovine teat tissue types between samples of the same study
Because magnification affects the ability of the software to detect elastic fibres, it is not a representative method for measuring this tissue type in whole teat
Summary
Along with the continuous regeneration of bovine teat canal lining to replace the keratinized superficial strata of the epithelium, tissues ensuring the proper closing of the Fürstenberg's rosette play a major role in the prevention of both milk leakage and the entry of bacteria into the teat sinus. Some previous studies (Giesecke, Gerneke, & van Rensburg, 1972; Paulrud, 2005; Pounden & Grossman, 1950; Van der Merwe, 1985) suggest that teat canal closure depends primarily on passive elastic contractions augmented by the tone of the smooth muscle fibres, while Hamann and Burvenich (1994) described the closure as an active process related to the spirally distributed smooth muscle in the teat wall. Regardless of the closing mechanism, teat canal keratin helps block the teat canal during the dry season. The objective of our study was to estimate the amount of collagen and elastic tissues surrounding the Fürstenberg's rosette in mastitis-infected and non-infected cows
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