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Updated: Jul 15, 2025
Surgical Closure of Equine Abdomen, Prevention, and Management of Incisional Complications
Published on: May 10, 2024
A retrospective study of equine perinatal loss in Canada (2007 to 2020)
R Madison Ricard1, Guillaume St-Jean1, Harveen K Atwal1
1Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4 (Ricard, Wobeser); Faculté de médecine vétérinaire, Université de Montréal, 3200 Rue Sicotte, Saint-Hyacinthe, Quebec J2S 2M2 (St-Jean); Animal Health Centre, British Columbia Ministry of Agriculture, 1767 Angus Campbell Road, Abbotsford, British Columbia V3G 2M3 (Atwal).
Objective:
This study aims to identify the most common causes of equine perinatal loss up to 7 d of age in Canada.
Animal:
Equine.
Procedure:
Necropsy reports from 360 equine perinatal loss cases were acquired from provincial veterinary diagnostic labs across Canada. Each case was classified into a basic cause (noninfectious, infectious, or unidentified) of perinatal loss, then further classified into primary and secondary categories for analysis.
Results:
Of the basic causes of perinatal loss, noninfectious causes were the most common. Bacterial causes, such as septicemia, were the most common primary diagnosis overall. Actinobacillus was the most commonly identified bacterial species.
Conclusion:
This study showed similar results to those of studies conducted in other countries, including having similar etiologic agents identified. The high prevalence of thyroid hyperplasia identified in this study is notable and was not reported in other, similar retrospective studies, despite being reported in locations other than Canada.
Clinical Relevance:
Perinatal loss can have important economic consequences for horse breeders; thus, identification of the most common causes is of interest to both veterinarians and breeders.
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