Survey for papillomatous digital dermatitis in Australian dairy cattle

Milinovich, Gabriel; Sa, Tongmin; Mw, McLennan; Trott, DJ

doi:10.1111/j.1751-0813.2004.tb12683.x

Cited by 11 publications

(5 citation statements)

References 22 publications

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“…Probably, this is the reason why lameness was not the first clinical sign noticed by the farmer at the present study. In support to this finding, other researchers [12,13] referred that lameness is not a significant finding among the affected cows.…”

Section: Resultssupporting

confidence: 51%

First Confirmed Case of Digital Dermatitis in Greece

Katsoulos¹,

Minas²,

Christodoulopoulos³

2008

American J. of Animal and Veterinary Sciences

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Abstract:The objective of the present study was to report the first confirmed case of digital dermatitis in Greece, emphasizing to the clinical appearance of the disease and to discuss some potential mechanisms concerning the entrance and the contagiousness of the disease in a new herd. The outbreak occurred in a new dairy farm of 60 primiparous Holstein cows in Thessaloniki region. All the animals had been purchased as pregnant heifers five months before the onset of the disease and were clinically healthy without any abnormality on their limbs at their arrival in the herd. At the time of our visit a detailed clinical history was obtained and all cows of the herd were examined for lesions of digital dermatitis. Skin biopsies were taken from each affected cow for bacteriological examinations. The clinical examination revealed that 22 animals had lesions of digital dermatitis. The diagnosis was based on the typical clinical appearance of the disease and was confirmed by the detection of Treponema on the smears from biopsy materials. The majority of the animals were affected during the first 2-3 months of lactation and their mean lameness score was 2.68. The present study reported the first confirmed case of digital dermatitis in Greece and provided evidence that the disease can be entered in a farm by clinically healthy animals but certain initiating conditions should be met in order the to have clinical manifestation of the disease.

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Section: Resultssupporting

confidence: 51%

First Confirmed Case of Digital Dermatitis in Greece

Katsoulos¹,

Minas²,

Christodoulopoulos³

2008

American J. of Animal and Veterinary Sciences

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“…The negative results for treponemes in our samples may be due to the low sensitivity of the PCR rather than the absence of treponemes in the samples. The same conclusion was drawn from five biopsies of erosive dermatitis‐lesions, which were obtained from a veterinary practice in Tasmania, Australia. In that study, there were no Spirochaete organisms observed by silver staining, and these researchers suggest that their finding indicated that other hoof disorders with common conditions are easily mistaken for DD.…”

Section: Discussionmentioning

confidence: 64%

“…Treponema ‐species are difficult to culture, so a more successful way to identify these species is by PCR. Another commonly used technique for analysis is haematoxylin‐eosin (HE) staining or silver staining. However, there is no gold standard test to confirm a macroscopic diagnosis of DD.…”

Section: Introductionmentioning

confidence: 99%

“…These circumstances may contribute to an increasing DD prevalence and DD may be an emerging disease in Australia. In 2004, Milinovich et al developed a questionnaire, sent to Australian veterinarians, to investigate whether DD occurs in Australia. One of the 88 respondents had seen cases or suspected cases, but many assumed that they had diagnosed these lesions as other claw diseases.…”

Section: Introductionmentioning

confidence: 99%

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Bovine digital dermatitis in Victoria, Australia

et al. 2019

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Aims The objectives of this study were to estimate the prevalence of digital dermatitis (DD) in Victoria, Australia, and to investigate which organisms are consistent with typical DD lesions. The prevalence and causative pathogens of DD are not clear yet in Australia and this paper is one of the first to explore these questions in this country.Methods Examination and sampling of limbs was undertaken at three knackeries in Victoria, Australia. Limbs were classified as normal (N), active DD-lesion (A), dried or chronic DD-lesion (D) or suspected case of DD (S). A total of 823 cows were examined. Six skin biopsies were taken at each knackery, from which DNA was extracted for diversity profiling. Histochemical staining of samples was performed on eight of the skin biopsies.Results DD was detected in 29.8% of all cows. The prevalence of DD was significantly higher in dairy cows (32.2%) than in beef cows (10.8%). The differential abundance of Treponema-species was significantly increased in dried lesions, compared with the normal skin biopsies. Actinobacteria, Proteobacteria, Firmicutes and Tenericutes were found to be significantly different in abundance in the DD lesions compared with normal skin biopsies. Silver staining of samples showed only mild inflammation and in two samples organisms with morphology consistent with Spirochaetes were detected. ConclusionsThe calculated prevalence indicates that DD is present in Victoria, Australia. The results of diversity profiling showed that the presence of Treponema-species was significantly different between the samples of DD lesions and normal skin.

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“…Previous studies have linked multiple bacterial species to DD lesions 5. Nonetheless, spirochetes, of the genus Treponema , have been consistently found deep within the dermis of infected cows 6–8. DD largely appears to be multifactorial including a combination of intrinsic and environmental risk factors: stock purchase, low parity, early lactation and moist unhygienic housing conditions 2 9 10…”

Section: Introductionmentioning

confidence: 99%

Randomised clinical trial showing the curative effect of bandaging on M2‐stage lesions of digital dermatitis in dairy cows

Klawitter

Döpfer

Braden

et al. 2019

Veterinary Record Open

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Objectives and designThis trial evaluated the effect of bandaging of acute painful ulcerative bovine digital dermatitis (DD) lesion (stage M2) in dairy cows, tested using two different topical treatments.DesignRandomised clinical trial.SettingThis study was conducted using Holstein-Friesian cows ranging in age from heifers to fourth lactation in a single dairy herd and diagnosed with acute ulcerative DD lesions (stage M2) on the first examination (week 0). Cows were randomly assigned into either a non-bandaged or bandaged group across two treatment conditions: topical chlortetracycline spray (CTC) and Intra Hoof-Fit Gel (IHF). Lesions received standardised bandaging and treatment on a weekly basis. Unhealed lesions could receive up to five repeated treatments, at weekly intervals, within a four-week period. Both M-stage and locomotion were also evaluated and scored weekly. Cows with healthily formed skin (stage M0) were deemed healed and subsequently released from the study.ResultsIn total, 163 M2 lesions were diagnosed at week 0. Bandaged M2 lesions had a significantly higher probability of cure than non-bandaged lesions regardless of treatment type (HR: 4.1; P<0.001; 95 per cent CI: 2.5 to 6.8). Most healing occurred within the first three weeks of trial. Furthermore, bandaged lesions (group 2 and group 4) were significantly less likely to progress into the chronic hyperkeratotic or proliferative stage (M4) than non-bandaged lesions in group 1 and group 3 (HR: 0.10; P<0.001; 95 per cent CI: 0.04 to 0.22). Out of concern for the cow’s wellbeing, this study investigated the effects of bandaging on locomotion. Bandaging had no effect on locomotion for either cows treated with CTC (group 1: median Sprecher score, 2; IQR=1–2; group 2: median Sprecher score, 2; IQR=1–3; P=0.3) or IHF (group 3: median Sprecher score, 2; IQR=1–2; group 4: median Sprecher score, 2; IQR=1–3; P=0.3).

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Survey for papillomatous digital dermatitis in Australian dairy cattle

Abstract: Anecdotal reports and analysis of biopsy material confirm that a condition similar to PDD does occur sporadically in dairy cattle in southern Australia. However, this condition has so far not been shown to be associated with the presence of spirochaetes in the lesions.

Cited by 11 publications

References 22 publications

First Confirmed Case of Digital Dermatitis in Greece

First Confirmed Case of Digital Dermatitis in Greece

Bovine digital dermatitis in Victoria, Australia

Randomised clinical trial showing the curative effect of bandaging on M2‐stage lesions of digital dermatitis in dairy cows

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