Isolation of Mycoplasma spp. and serological responses in bulls prior to and following their introduction into Mycoplasma bovis-infected dairy herds

Journal of Dairy Science
M S HazeltonJ K House

Abstract

With the common use of bulls for breeding following a period of artificial insemination in seasonally bred dairy herds, it is important to consider the potential role of the bull in transmission of Mycoplasma spp. within and between herds. This study aimed to assess the prevalence of Mycoplasma spp. in a population of bulls before and after use in Mycoplasma bovis-infected herds. The frequency of subclinical infection was also measured serologically postbreeding, and the association of Mycoplasma spp. on semen quality was evaluated. Mycoplasma bovis was isolated from 4 of 118 bulls after use in 4 herds infected with M. bovis. In the bulls, M. bovis seroprevalence increased from 9% prebreeding to 46% postbreeding with a total seroconversion rate of 44% across the 4 herds, with no evidence of clinical disease. There was no association of Mycoplasma spp. in the bulls' semen and abnormal palpation characteristics (enlarged or nodular) of seminal vesicular glands or poor semen quality attributes such as semen mass activity, sperm motility, and morphology. These results demonstrate a high degree of subclinical exposure of the bulls to M. bovis in infected herds and highlight the potential for bulls to be mycoplasma carriers within an...Continue Reading

References

May 2, 1977·JAMA : the Journal of the American Medical Association·K Lind
Jul 22, 1978·The Veterinary Record·R N GourlayM J Edmonds
Sep 12, 1987·The Veterinary Record·S M ThamsborgE Brummerstedt
Oct 3, 1987·The Veterinary Record·H J BallW Orr
Mar 1, 1986·Journal of Reproduction and Fertility·P D WoodD R Melrose
Nov 1, 1974·Australian Veterinary Journal·P A Bagshaw, P W Ladds
Sep 1, 1983·Australian Veterinary Journal·S T Lomas, S L Hazell
Aug 1, 1994·Genitourinary Medicine·A Strand, E Rylander
Dec 1, 1996·Revue Scientifique Et Technique·H Pfützner, K Sachse
Nov 1, 2000·The Veterinary Record·D P MackieH J Ball
Apr 10, 2003·The Veterinary Clinics of North America. Food Animal Practice·Rubén N González, David J Wilson
Jul 8, 2005·Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health·L K FoxA Britten
Jan 1, 1994·Infectious Diseases in Obstetrics and Gynecology·A SteinD Raoult
Aug 18, 2010·Infection and Immunity·Jacques van der MerweJose Perez-Casal
Feb 4, 2011·Epidemiologic Perspectives & Innovations : EP+I·Joseph H Abramson
Jul 13, 2011·Journal of Veterinary Internal Medicine·F P MaunsellE D Janzen
Jun 6, 2012·The Veterinary Clinics of North America. Food Animal Practice·Lawrence K Fox
Jun 26, 2012·Nucleic Acids Research·Andreas UntergasserSteven G Rozen
Jan 30, 2013·Australian Veterinary Journal·M LucasL Fritschi
Dec 18, 2013·Clinical and Vaccine Immunology : CVI·Nadeeka K WawegamaPhilip F Markham
May 16, 2015·Veterinary Research·Sibylle BürkiPaola Pilo

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Citations

Sep 24, 2020·World Journal of Microbiology & Biotechnology·Feng ShiChuangfu Chen

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