Molecular prevalence and phylogenetic confirmation of bovine trichomoniasis in aborted cows in Iraq
Autor: | Hasanain A. J. Gharban |
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Jazyk: | angličtina |
Rok vydání: | 2023 |
Předmět: | |
Zdroj: | Veterinary World, Vol 16, Iss 3, Pp 580-587 (2023) |
Druh dokumentu: | article |
ISSN: | 0972-8988 2231-0916 |
DOI: | 10.14202/vetworld.2023.580-587 |
Popis: | Background and Aim: Bovine trichomoniasis, caused by Tritrichomonas foetus, is a venereal disease that is distributed in many countries, including Iraq. Compared with other abortive infectious diseases, prevalence of T. foetus is expected to be relatively low in the field by veterinarians. This study aimed to estimate the prevalence of T. foetus in aborted cows by conventional polymerase chain reaction (PCR) and phylogenetic analysis of local T. foetus isolates was documented in the National Center for Biotechnology Information as the first sequenced isolates from Iraq. Materials and Methods: Vaginal fluids were collected from 62 aborted cows and examined by PCR. Data were reported for the following parameters: Vital signs (body temperature and respiratory and pulse rates), age (8 years), reproductive health status (premature calving, embryonic death, pyometra, and healthy newborn), breed (pure or crossbred), type of breeding (natural or artificial), bull-to-cow ratio (1:20), contact of cow with bull(s) from other farmers (yes or no), and contact with stray animals (dogs and cats). Results: A total of 20.97% of aborted cows were positive for T. foetus. Phylogenetic analysis for 10 positive local T. foetus isolates demonstrated high identity with the Thai (MN560972.2) and Chinese (MH115435.1) isolates, with an identity range of 98.8%–99.5% and 98.6%–99.3%, respectively. Clinical data showed that the vital signs differed insignificantly between cows positive and negative for T. foetus. Prevalence and risk of infection increased significantly in |
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