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Type: Journal article
Title: Ureaplasma diversum in bull semen in Australia: its detection and potential effects
Author: Hobson, N.
Chousalkar, K.
Chenoweth, P.
Citation: Australian Veterinary Journal, 2013; 91(11):469-473
Publisher: Australian Veterinary Assn
Issue Date: 2013
ISSN: 0005-0423
Statement of
N Hobson, KK Chousalkar and PJ Chenoweth
Abstract: BACKGROUND: The primary objective of this study was to confirm the infection status of Ureaplasma diversum in Australian bulls and to identify morphological changes of sperm from U. diversum-positive bulls. METHODS: Fresh semen samples were taken from 29 sexually active beef bulls from suspect herds in the Riverina/Upper Murray region. U. diversum was identified using PCR analyses and culture of the organism. RESULTS: Nine of the bulls were PCR-positive for U. diversum but none of these had genital lesions. Sperm from infected bulls showed increased incidence of abnormal tails (bent and coiled), as well as surface abnormalities (i.e. small protuberances or lumps). CONCLUSIONS: The results suggest impairment of sperm function and possibly fertility. Further investigations into the potential role of U. diversum as a pathogen for Australian cattle are warranted.
Keywords: beef cattle; bulls; infertility; sperm morphology; Ureaplasma diversum
Rights: © 2013 Australian Veterinary Association
RMID: 0020132571
DOI: 10.1111/avj.12113
Appears in Collections:Animal and Veterinary Sciences publications

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