Ureaplasma Diversum As a Cause of Reproductive Disease in Cattle

Miller, Richard B.; Chełmońska-Soyta, Anna; Smits, Bronwyn; Foster, Robert A.; Rosendal, S

doi:10.1016/s0749-0720(15)30533-8

Cited by 34 publications

(14 citation statements)

References 35 publications

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“…The presence of these microorganisms in the reproductive system of males has been associated with diseases such as orchitis, seminal vesiculitis, balanoposthitis, epididymitis and other functional disorders related to the morphology and motility of spermatozoa (Panangala et al 1981, Pilazec & Truszcynski 1988, Eaglesome et al 1992, Rizzo et al 2011. The transmission route is through direct contact during sexual intercourse, artificial insemination or by embryo transfer (Kirkbride 1987, Hasso et al 1993, Miller et al 1994). Oliveira (2008) …”

Section: Introductionmentioning

confidence: 99%

Mycoplasma agalactiae in semen and milk of goat from Pernambuco state, Brazil

et al. 2013

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In goat and sheep flocks, mycoplasmosis is a disease that may cause severe economical losses associated with polyarthritis, mastitis, agalactia, conjunctivitis, pneumonia and reproductive failure. The latter may involve repeat breeding, granular vulvovaginitis, infertility and abortions. The aim of the present study was to assess the occurrence of Mycoplasma agalactiae (Ma) in semen and milk samples from naturally infected goat in the semiarid region from Pernambuco State, Northeast from Brazil. Thirty-nine semen samples and 81 milk samples were submitted to DNA extraction using a commercially available kit and following the manufacturer's instructions. The polymerase chain reaction (PCR) was then performed in accordance with protocols described in the literature. The results of the present study revealed the presence of Ma in the DNA of 17.9% (7/39) of the semen samples and 3.7% (3/81) of the milk samples. The results obtained in the present study confirm the elimination of the DNA of Ma in the semen and milk samples. The presence of this agent in goat flocks is considered very risky in terms of reproductive disorders and contagious agalactia outbreaks in the Northeast region of Brazil.

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Section: Introductionmentioning

confidence: 99%

Mycoplasma agalactiae in semen and milk of goat from Pernambuco state, Brazil

et al. 2013

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“…It has been hypothesised that increased blood urea nitrogen may be a risk factor that predisposes an animal to infection by providing an increased concentration of urea substrate for the growth of Ureaplasma spp., but this theory has not yet been evaluated sufficiently to draw a conclusion . Ureaplasma diversum is believed to be transferred between animals during the breeding season via natural mating and through artificial procedures such as artificial insemination and embryo transfer . Horizontal transmission through nuzzling or urine contamination from infected cows can also occur …”

mentioning

confidence: 99%

“…Ureaplasma diversum is believed to be transferred between animals during the breeding season via natural mating and through artificial procedures such as artificial insemination and embryo transfer . Horizontal transmission through nuzzling or urine contamination from infected cows can also occur …”

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confidence: 99%

Presence of Ureaplasma diversum in the Australian cattle population

2013

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In cattle, Ureaplasma diversum has been associated with decreased fertility, granular vulvovaginitis, endometritis, salpingitis and spontaneous abortion in cows and seminal vesiculitis, balanoposthitis and changes in bull sperm. The presence of U. diversum within the Australian cattle population has not been established. One of the aims of this study was to determine if U. diversum was present in Australian cattle, using culture and polymerase chain reaction (PCR), both of which are considered to be gold standards for bacterial identification. Of 100 samples collected from 66 male and 34 female cattle, 15 were positive for U. diversum. Therefore, Australia can no longer be considered free of U. diversum. Further studies should be conducted to ascertain the effects of U. diversum within Australian cattle herds and, if warranted, to investigate prevention, treatment and eradication protocols.

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“…Vulvovaginitis is be periodically observed in heifers or cows positive for Ureaplasma diversum (Cardoso et al 2000), resulting in infertility. The contact between the mucosa of vagina and penis, as well as the friction during mating cause a break of the vesicles, resulting in the semen and male contamination (Miller et al 1994). …”

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confidence: 99%

Histopatology of the reproductive tract of Nellore pubertal heifers with genital ureaplasmosis

Porto

Filho

Ferraz

et al. 2017

An. Acad. Bras. Ciênc.

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In order to study and characterize the lesions in the reproductive tract of Nellore heifers naturally infected with Ureaplasma diversum and presenting granular vulvovaginitis syndrome (GVS), fragments of uterine tube, uterus, cervix, vagina and vulva of 20 animals were evaluated. The macroscopic lesions of the vulvovaginal mucosa were classified in scores of "1" mild, until "4", severe inflammation and pustular or necrotic lesions. The histopathological evaluation was performed using scores of "1" to "4", according to the inflammatory alterations. The fragments with severe microscopic lesions (3 and 4) were from the uterine tubes and uterus, which showed leukocytes infiltration and destruction and/or necrosis of epithelium. Alterations in the lower reproductive tract fragments were mild, but characteristics of acute inflammatory processes. The histopathological findings of the reproductive tract of females naturally infected with Ureaplasma diversum are consistent with injuries that compromise the environment from the local where spermatozoa acquires ability to fertilize an oocyte until those where the oocyte is fertilized. Therefore, animals with GVS should be identified early in the herd, because, besides the reduction in the fertility rates caused by tissue damages, they can contribute to disseminate the microorganism.

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Ureaplasma Diversum As a Cause of Reproductive Disease in Cattle

Cited by 34 publications

References 35 publications

Mycoplasma agalactiae in semen and milk of goat from Pernambuco state, Brazil

Mycoplasma agalactiae in semen and milk of goat from Pernambuco state, Brazil

Presence of Ureaplasma diversum in the Australian cattle population

Histopatology of the reproductive tract of Nellore pubertal heifers with genital ureaplasmosis

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