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



Título del documento: Histopatology of the reproductive tract of Nellore pubertal heifers with genital ureaplasmosis
Revue: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000417699
ISSN: 0001-3765
Autores: 1
1
2
3
2
1
Instituciones: 1Universidade Federal de Goias, Escola de Veterinaria e Zootecnia, Goiania, Goias. Brasil
2Universidade Federal de Goias, Unidade Especial de Ciencias Agrarias, Goiania, Goias. Brasil
3University of Minnesota, College of Veterinary Medicine, Saint Paul, Minnesota. Estados Unidos de América
Año:
Periodo: Dic
Volumen: 89
Número: 4
Paginación: 2987-2996
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés 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
Disciplinas: Medicina veterinaria y zootecnia
Palabras clave: Bovinos,
Medicina veterinaria,
Nelore,
Infecciones microbianas,
Tracto reproductivo,
Histopatología,
Ureaplasma diversum
Keyword: Bovines,
Veterinary medicine,
Nelore,
Microbial infections,
Reproductive tract,
Histopathology,
Ureaplasma diversum
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