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OJVRTM
Online Journal of Veterinary Research©
Volume 25 (6): 394-400, 2021.
Pregnancy toxemia in ewes and misdiagnosis by ultrasonography.
Alidadi N, Rafia S and Moaddab SH.
Department of
Clinical Sciences, Faculty of Veterinary Medicine, University of Tehran,
Tehran, Iran.
ABSTRACT
Alidadi N, Rafia S, Moaddab SH., Pregnancy toxemia
in ewes and misdiagnosis by ultrasonography, Onl J Vetr Res., 25 (6): 394-407,
2021. Four recumbent
ewes with nervous depression were diagnosed as non-pregnant by transabdominal
ultrasonography. The ewes had been separated from pregnant ones ~4 months
before and thus given low energy diet. However, we then detected late twin
pregnancy by abdominal palpation and confirmed pregnancy toxemia by epidemiological,
clinical, necropsy, biochemical and histopathological findings. We then found
that 8 more ewes that had been also diagnosed as non-pregnant subsequently
found pregnant suggesting significant human error. Diagnosis of pregnancy in
ewes by ultrasonography usually has a high rate of accuracy (95-98%), but as highlighted
in this case report, it is strongly subject to technician experience and authors
recommend repeat scans of non-pregnant ewes.
Key words: Ewe,
Pregnancy Toxemia, Outbreak, Pregnancy Diagnosis, Ultrasonography.
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