Granular Vulvovaginitis Syndrome in Nelore pubertal and post pubertal replacement heifers under tropical conditions: role of Mycoplasma spp., Ureaplasma diversum and BHV-1
| Autor: | C. M. G. Oliveira, T. L. Kunz, Maria Lúcia Gambarini, Regiani Nascimento Gagno Pôrto, B. D. Oliveira Filho, W. M. E. D. Brito, Marco Antônio de Oliveira Viu |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
animal diseases
Physiology Cattle Diseases Biology medicine.disease_cause Ureaplasma Vaginal mucus Ureaplasma diversum Vaginal disease Mycoplasma Food Animals Neutralization Tests Risk Factors Stress Physiological medicine Animals Seroconversion Vaginitis Herpesvirus 1 Bovine Tropical Climate Syndrome Zebu medicine.disease Vulvovaginitis medicine.anatomical_structure Immunology Vagina Animal Science and Zoology Cattle Female Brazil |
| Zdroj: | Tropical animal health and production. 41(7) |
| ISSN: | 1573-7438 |
| Popis: | In order to determine the role of Mycoplasma spp, Ureaplasma diversum and BHV-1 as causal agents of Granular Vulvovaginitis Syndrome in Nelore heifers raised under tropical conditions and based on the hypothesis that stressful conditions during puberty or breeding season would be a determinant factor for the infection, 340 heifers not vaccinated against BHV-1 were divided in Post-pubertal, in the beginning of the first breeding season, and Pubertal heifers. The vaginal lesion score (VLS) Grade 1 to 4 was giving according to lesion area and severity. Vaginal mucus was used to isolate Mycoplasma spp., Ureaplasma diversum and BHV-1. The predominant VLS was 2. No sample was positive for BHV-1; 48% were positive for Mycoplasma spp., Ureaplasma diversum, or both, with predominance of Ureaplasma diversum. Serum neutralization for BHV-1 showed more positive animals in pubertal group (23%); 3 of the paired sera demonstrated seroconversion. These data indicated that post-pubertal and pubertal Nelore heifers raised under extensive conditions are more susceptible to Mycoplasma spp. and Ureaplasma diversum. The hypothesis that the stress of pubertal period could lead to an acute vaginal infection by HBV-1 was not proofed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink