The aim of this study was to examine whether ultrasonography can be used to predict the outcome of clinical mastitis in dairy cows. Forty-seven mastitic quarters of Holstein-Friesian cows were examined using ultrasonography at the time of the first examination. In mastitic mammary tissue, three sonographic signs indicating tissue abnormality were found: a hyperechoic spot in the parenchyma area, structural changes How to cite this article: Suzuki N, Kurose T, Kaneko S, Haraguchi A, Isobe N. Outcome prediction from the first examination in clinical mastitis using ultrasonography in dairy cows.

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