Fachbereich Veterinärmedizin



    Comparison of new techniques for the diagnosis of chronic endometritis in dairy cattle (2004)

    Drillich, M.
    Kaufmann, T. B.
    Raab, D.
    Lenz, M.
    Heuwieser, W.
    37. Jahrestagung Physiologie und Pathologie der Fortpflanzung, gleichzeitig 29. Veterinär-Humanmedizinische Gemeinschaftstagung
    München, 19. – 20.02.2004
    Wiener Tierärztliche Monatsschrift — S. 19
    ISSN: 0043-535x
    Tierklinik für Fortpflanzung

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    Abstract / Zusammenfassung

    n veterinary practice the diagnosis of chronic endometritis in dairy cattle is
    usually based on rectal palpation of the genital tract and / or on vaginoscopy.
    Recent studies have shown that subclinical forms of endometritis, not detected
    by rectal palpation, can cause depressed fertility. The objective of this study was
    to compare three diagnostic methods for the diagnosis of subclinical
    endometritis on a commercial dairy farm. All cows were examined by rectal
    palpation between day 21 to 27 post partum. Cows without clinical signs of
    endometritis at rectal palpation (i.e. enlarged uterus, purulent discharge) were
    examined by vaginoscopy (n=110), ultrasound (n=65), and sampling with the
    cytohrush technique (n=106).
    The proportion of cows that were found affected with signs of endometritis, was
    10.9, 42.5 and 58.5 % with vaginoscopy, cytobrush and ultrasound, respectively.
    Compared to the cytobrush technique the sensitivity and specificity of
    vaginoscopy were 12.3 % and 90.2 %, respectively. With ultrasound as "gold
    standard" they were 7.8 % and 96.3 %, respectively. Remarkably, the correlation
    of the results of cytobrush and ultrasound methods was low. Comparing
    ultrasound with the cytobrush technique as "gold standard" the sensitivity and
    specificity were 57.7 % and 40.5 %, respectively. A follow up study will
    evaluate both techniques concerning their relationship with reproductive
    performance with a large number of cows examined.
    Studies by Kasimanickam et al. (2001), and Raab et al. (2002) using the
    cytobrush technique, and Lenz et al. (2003) using ultrasound have shown a
    negative impact of subclinical endometritis on reproductive performance. The
    results of our study have demonstrated the limited diagnostic value of traditional
    techniques of examination. Ultrasound and the cytobrush technique both found
    significantly more cases of endometritis than vaginoscopy. An adequate
    diagnostic method is the basis for efficient post partum treatment and increased
    reproductive performance in the current lactation.