Histopatology of the reproductive tract of Nellore pubertal heifers with genital ureaplasmosis
An. acad. bras. ciênc
;
89(4): 2987-2996, Oct.-Dec. 2017. tab, graf
Article
in English
| LILACS
| ID: biblio-886827
ABSTRACT
ABSTRACT 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. Key words bovine, tissue evaluation, reproduction, Ureaplasma diversum.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Cattle Diseases
/
Ureaplasma Infections
/
Genitalia, Female
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
An. acad. bras. ciênc
Journal subject:
Science
Year:
2017
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Goiás/BR
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