Unusual history and initial clinical signs of Mycoplasma bovis mastitis and arthritis in first-lactation cows in a closed commercial dairy herd

Wilson, David J.; Skirpstunas, Ramona T.; Trujillo, Jessie D.; Cavender, K. B.; Bagley, Clell V.; Harding, Robert L.

doi:10.2460/javma.230.10.1519

Cited by 41 publications

(42 citation statements)

References 10 publications

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“…Two subspecies have been isolated from congested lungs from two different lambs (ages 20 days & 1 year) after sudden death40. Mycoplasma species are linked to lameness, generally associated with polyarthritis in a wide range of animals, mainly pigs and poultry4142, but also cattle4344 and occasionally in sheep45.…”

Section: Discussionmentioning

confidence: 99%

A distinct bacterial dysbiosis associated skin inflammation in ovine footrot

Maboni

Blanchard

Frosth

et al. 2017

Sci Rep

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Ovine footrot is a highly prevalent bacterial disease caused by Dichelobacter nodosus and characterised by the separation of the hoof horn from the underlying skin. The role of innate immune molecules and other bacterial communities in the development of footrot lesions remains unclear. This study shows a significant association between the high expression of IL1β and high D. nodosus load in footrot samples. Investigation of the microbial population identified distinct bacterial populations in the different disease stages and also depending on the level of inflammation. Treponema (34%), Mycoplasma (29%) and Porphyromonas (15%) were the most abundant genera associated with high levels of inflammation in footrot. In contrast, Acinetobacter (25%), Corynebacteria (17%) and Flavobacterium (17%) were the most abundant genera associated with high levels of inflammation in healthy feet. This demonstrates for the first time there is a distinct microbial community associated with footrot and high cytokine expression.

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Section: Discussionmentioning

confidence: 99%

A distinct bacterial dysbiosis associated skin inflammation in ovine footrot

Maboni

Blanchard

Frosth

et al. 2017

Sci Rep

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“…34 -36 In outbreaks with Mycoplasma mastitis, it is not unusual to find cases of Mycoplasma arthritis. [37][38][39][40][41] Similarly, a field outbreak of Mycoplasma-associated bovine respiratory disease was associated with outbreaks of arthritis. 41 The link between arthritic Mycoplasma disease events and mastitis or pneumonia is indicative that internal somatic spread of this agent is not uncommon.…”

Section: Transmissionmentioning

confidence: 95%

Mycoplasma Mastitis

Fox¹

2012

Veterinary Clinics of North America: Food Animal Practice

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“…Bovine mycoplasmosis due to Mycoplasma bovis has caused major economic losses in the USA and Canada for several years, inducing mastitis [1,2], respiratory disease [3], and polyarthritis [4]. Both dairy and beef cattle have been affected [5].…”

Section: Introductionmentioning

confidence: 99%

Mycoplasma bovis infections in Swiss dairy cattle: a clinical investigation

et al. 2015

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Mycoplasma bovis causes mastitis in dairy cows and is associated with pneumonia and polyarthritis in cattle. The present investigation included a retrospective case–control study to identify potential herd-level risk factors for M. bovis associated disease, and a prospective cohort study to evaluate the course of clinical disease in M. bovis infected dairy cattle herds in Switzerland. Eighteen herds with confirmed M. bovis cases were visited twice within an average interval of 75 d. One control herd with no history of clinical mycoplasmosis, matched for herd size, was randomly selected within a 10 km range for each case herd. Animal health data, production data, information on milking and feeding-management, housing and presence of potential stress- factors were collected. Composite quarter milk samples were aseptically collected from all lactating cows and 5% of all animals within each herd were sampled by nasal swabs. Organ samples of culled diseased cows were collected when logistically possible. All samples were analyzed by real-time polymerase chain reaction (PCR). In case herds, incidence risk of pneumonia, arthritis and clinical mastitis prior to the first visit and incidence rates of clinical mastitis and clinical pneumonia between the two visits was estimated. Logistic regression was used to identify potential herd-level risk factors for M. bovis infection. In case herds, incidence risk of M. bovis mastitis prior to the first visit ranged from 2 to 15%, whereas 2 to 35% of the cows suffered from clinical pneumonia within the 12 months prior to the first herd visit. The incidence rates of mycoplasmal mastitis and clinical pneumonia between the two herd visits were low in case herds (0–0.1 per animal year at risk and 0.1-0.6 per animal year at risk, respectively). In the retrospective-case-control study high mean milk production, appropriate stimulation until milk-let-down, fore-stripping, animal movements (cattle shows and trade), presence of stress-factors, and use of a specific brand of milking equipment, were identified as potential herd-level risk factors. The prospective cohort study revealed a decreased incidence of clinical disease within three months and prolonged colonization of the nasal cavity by M. bovis in young stock.

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Unusual history and initial clinical signs of Mycoplasma bovis mastitis and arthritis in first-lactation cows in a closed commercial dairy herd

Cited by 41 publications

References 10 publications

A distinct bacterial dysbiosis associated skin inflammation in ovine footrot

A distinct bacterial dysbiosis associated skin inflammation in ovine footrot

Mycoplasma Mastitis

Mycoplasma bovis infections in Swiss dairy cattle: a clinical investigation

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