Pathological findings in spontaneously dead and euthanized sows – a descriptive study

Porcine Health Management

Olli Peltoniemi¹  Paula Bergman¹  Mari Heinonen¹  Henna Pekkarinen²  Camilla Munsterhjelm³  Eve Ala-Kurikka³  Anna Valros³  Taina Laine⁴ 

[1] Department of Production Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki;Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki;Research Centre for Animal Welfare, Department of Production Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki;Veterinary Bacteriology and Pathology Unit, Finnish Food Authority (until 31 December 2018 Finnish Food Safety Authority Evira);

关键词: Sow;    Mortality;    On-farm death;    Euthanasia;    Post-mortem examination;    Lameness;   

DOI  :  10.1186/s40813-019-0132-y

来源: DOAJ

【 摘 要 】

Abstract Background A high rate of euthanized and spontaneously dead sows causes production losses and likely indicates underlying welfare problems. Identification of predisposing factors to on-farm deaths requires a thorough understanding of the causes. Post-mortem examination is needed for a proper diagnosis. The aims of this descriptive study were to determine causes of spontaneous deaths and euthanasia in sows in a convenience sample of Finnish herds and to describe pathological findings in the locomotor system and in teeth and gums. Results This study described post-mortem findings in 65 sows found dead or euthanized on 15 farms. All but one of the sows presented with two or more pathological findings. The majority of primary pathologic-anatomic diagnoses (PAD-1) were inflammatory. The most prevalent diagnoses were arthritis and peritonitis (9% of sows each). The locomotor system was the body part most commonly affected by lesions. Findings in the locomotor system unassociated with death were present in 85% of the animals, additionally 29% of PAD-1 s concerned the locomotor system. The prevalence for both degenerative joint disease and tooth wear was 71%. Farmers had noted clinical signs within 30 days of death in every euthanized sow and in half of the spontaneously dead ones. The farmer’s impression of the cause of death agreed at least partly with the PAD-1 in 44% of the cases. Conclusion Multiple pathologies were the norm in the present animals. This may indicate an extended course of illness and therefore also an unnecessary delay in medical treatment or euthanasia. The prevalence and clinical relevance of the most common disorders, including degenerative joint disease and tooth wear, need to be elucidated.

【 授权许可】

Unknown