Isolation of a Mycoplasma From Vulvovaginitis in Sheep

Cottew, G. S.; Lloyd, L. C.; Parsonson, I. M.; Hore, D. E.

doi:10.1111/j.1751-0813.1974.tb14092.x

Cited by 23 publications

(17 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ulcerative conditions of the genitalia of sheep have been described in Australia, Canada, Britain and India 2,7,11,12,19,21,37 , and in goats in India, New Zealand, Australia and Nigeria 6,14,16,31,33 . Although no infectious agent or agents have been consistently isolated 24,37,38 , there is some evidence that conventional bacteria 3,36 , Ureaplasma spp.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ulcerative balanitis and vulvitis of Dorper sheep in South Africa : a study on its aetiology and clinical features

Kidanemariam¹,

Gouws²,

Vuuren³

et al. 2005

J. S. Afr. Vet. Assoc.

View full text Add to dashboard Cite

Ovine ulcerative balanitis and vulvitis in sheep of the Dorper breed has been observed in South Africa since 1979. Its aetiology has not been conclusively resolved, and there is some discrepancy in descriptions of its clinical features. In order to identify the pathogenic microorganism / s that contribute to the occurrence of the disease, the microflora in the genital tracts of both clinically healthy and affected sheep were isolated and compared. Bacteriological examination of materials from affected and unaffected sheep resulted in the isolation of Arcanobacterium pyogenes from 44.2 % and 17.2 % of them respectively. This difference is statistically significant (P < 0.01). Seventy-four per cent of the isolates originated from severe clinical cases. Mycoplasmas were isolated from 49.3 % of 116 clinically normal sheep and 78.2%of 104 affected sheep. There were significant differences in their rates of isolation in clinical groups (P < 0.05). Of all the mycoplasma isolates, Mycoplasma mycoides mycoides large colony variant (MmmLC) was isolated from 61.5 % of clinically diseased sheep while 6.0 % of the isolates were from apparently healthy animals (P < 0.05). The study threw light on the prevalence of mycoplasmas in the genital tract of apparently healthy sheep and, at the same time the identity of the mycoplasma pathogen associated with ulcerative balanitis and vulvitis was revealed. The findings of this investigation therefore confirmed the involvement of mycoplasma, particularly that of MmmLC large colony, in the disease in Dorper sheep in South Africa, and it was concluded that this microorganism is an important pathogen of balanitis and vulvitis in them. The study furthermore demonstrated a probable synergism between A. pyogenes and MmmLC. Finding these 2 organisms together occurred 53.4 times more frequently in the affected sheep than in the unaffected, which emphasises the probable multifactorial nature of the disease. The association between age and the presence of clinical signs was statistically significant. It was found that young sheep were more likely to have lesions than adult sheep. Clinical observations showed that the typical ulceration appears to be confined to the glans penis and lips of the vulva; no ulceration was observed on the shaft of the penis and prepuce or vaginal vestibule. In uncomplicated cases inflammation of the prepuce and vaginal vestibule is not a regular feature of the disease. Therefore the names ulcerative balanitis and vulvitis most accurately describe the nature of the disease in South Africa.

show abstract

Section: Introductionmentioning

confidence: 99%

“…2,11,27,28 and Mycoplasma spp. 7,11,21,25,26,36 may be involved and have been recovered in some cases from clinical specimens. Several authors have intimated that the disease only occurs in ewes as no mention was made in their publications of the simultaneous involvement of associated rams 2,11 .…”

Section: Introductionmentioning

confidence: 99%

Ulcerative balanitis and vulvitis of Dorper sheep in South Africa : a study on its aetiology and clinical features

Kidanemariam¹,

Gouws²,

Vuuren³

et al. 2005

J. S. Afr. Vet. Assoc.

View full text Add to dashboard Cite

show abstract

“…Dentre as espécies com potencial patogênico para causar infecções genitais em pequenos ruminantes estão incluso Mycoplasma capricolum (JONES, 1983;JONES et al, 1983), Mycoplasma arginini (JONES, 1983), Mycoplasma mycoides mycoides (COTTEW; LLOYD; PARSONSON, 1974;TRICHARD et al, 1993, KIDANEMARIAM, 2003, Mycoplasma agalactiae (JONES, 1983), Acholeplasma laidlawii e Acholeplasma axantum KAPOOR;PATHAK, 1984), Ureaplasma (BALL; MCCAUGHEY, ,1982LIVINGSTONE JR.;GAUER, 1982 Os animais ainda foram divididos em dois grupos quanto a sua idade,j ovens animais com idade abaixo de 2 anos e adultos acima de 2 anos. MCCAUGHEY, 1982;RAJYAN;MOHANTY, 1974).…”

Section: Micoplasmosesunclassified

“…A avaliação dos resultados desta pesquisa, ainda não foi possível provar ser as micoplasmoses em ovinos a maior causadora de distúrbios relacionados a produção desta espécie animal, e como alguns autores citam a presença do microorganismo não significa presença da doença. Este aspecto ainda é muito controverso devido aos animais sadios também serem portadores desta bactéria em várias outras espécies (DOIG et al, 1979;REID et al, 1989;SARDERSON;CHENOWETH, 1999 DUNN, 1996;IHEMELANDU, 1972;KIDANEMARIAM, 2003;TRICHARD et al, 1993;WEBB;CHICK, 1976 (DENT, 1971;KIDANEMARIAM, 2003;TRICHARD et al, 1993;WEBB;CHICK 1976 LLOYD;PARSONSON, 1974;JONES, 1983;JONES et al, 1983;KAPOOR;PATHAK, 1984;KAPOOR et al, 1984;KIDANEMARIAM, 2003;LIVINGDTONE;GAUER, 1982;TRICHARD et al, 1993).…”

Section: Micoplasmosesunclassified

“…Pelos resultados encontrados há a evidência que bactérias contaminantes poderiam ser patogênicas e estar associadas com a vulvite encontrada (BALL; MCCAUGHEY, 1982 PARSONSON, 1974;RUHNKE, 1977;JONES et al, 1983;LIVINGSTONE JUNIOR;GAUER, 1983;RAJYAN;MOHANTY, 1974;TRICHARD et al, 1993 Acredita-se que as cepas mais patogênicas ainda não estão presentes na nossa área, fato este que deve-se ser discutido para que a vigilância epidemiológica local tome devidas providências no controle da possível entrada de agentes mais agressivos (DAMASSA; BROOKS; ADLER, 1983;KINADEMARIAM, 2003;PUGH, 2005;RODRIGUEZ et al, 1995;TRICHARD et al, 1993).…”

Section: Micoplasmosesunclassified

See 1 more Smart Citation