N Hobson1, K K Chousalkar, P J Chenoweth. 1. School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia.
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.
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.
Authors: Jaqueline B Azevedo; Gustavo S Silva; Priscylla S Rocha; Letícia C Pitchenin; Valéria Dutra; Luciano Nakazato; Anderson Castro Soares de Oliveira; Caroline A Pescador Journal: Trop Anim Health Prod Date: 2016-12-03 Impact factor: 1.559
Authors: Manoel N Santos-Junior; Izadora S Rezende; Clarissa L S Souza; Maysa S Barbosa; Guilherme B Campos; Laís F Brito; Éllunny C Queiroz; Elaine N Barbosa; Mariana M Teixeira; Letícia O Da Silva; Lucas S C Silva; Flávia S Nascimento; Tassyo L Da Silva; Adam A Martens; Adriano F P Siqueira; Mayra E O D'Avila Assumpção; Glaucia M Machado-Santelli; Bruno L Bastos; Ana M S Guimarães; Jorge Timenetsky; Lucas M Marques Journal: Front Microbiol Date: 2018-07-12 Impact factor: 5.640
Authors: Lucas M Marques; Izadora S Rezende; Maysa S Barbosa; Ana M S Guimarães; Hellen B Martins; Guilherme B Campos; Naíla C do Nascimento; Andrea P Dos Santos; Aline T Amorim; Verena M Santos; Sávio T Farias; Fernanda  C Barrence; Lauro M de Souza; Melissa Buzinhani; Victor E Arana-Chavez; Maria E Zenteno; Gustavo P Amarante-Mendes; Joanne B Messick; Jorge Timenetsky Journal: PLoS One Date: 2016-09-07 Impact factor: 3.240