Retrospective analysis of hairy vetch (Vicia villosa roth) poisoning in Argentina (2004–2019)

Case report: Systemic granulomatous disease with vasculitis in a bull due to hairy vetch (Vicia villosa) toxicosis

“…have been identified in several countries. [7][8][9][10][11][12][13][14][15] Most cases are attributed to ingestion of V. villosa (hairy vetch); 7,8,[11][12][13] however, other species have also been identified in several cases including V. sativa (common vetch), 14 V. dasycarpa (wooly-pod vetch), 9,10 and V. benghalensis (purple vetch). 9 In some outbreaks, a mixture of vetches are found in the same pasture 9,11,13 or a hybrid vetch has been identified.…”

“…2,8,9,12 Common clinical signs include dermatitis with variable pruritus and alopecia, conjunctivitis, catarrhal or serous rhinitis, weight loss, fever, reduced milk production, diarrhea, lymphadenopathy, weakness, tachypnea and tachycardia. 2,4,[7][8][9]12,13 Histopathology shows disseminated granulomatous inflammation characterized by infiltrates of macrophages, lymphocytes, and plasma cells with variable numbers of multinucleated giant cells and eosinophils. 1,2,[7][8][9]11,13,15 Lesions can be seen in any organ; however, the main organs affected include skin, kidney, adrenal gland, lymphoid tissues, heart, liver and thyroid glands.…”

“…6 Outbreaks and isolated cases of systemic granulomatous disease in cattle attributed to ingestion of Vicia spp. have been identified in several countries including Argentina, 7,8 Australia, 9,10 Brazil, [11][12][13] France 14 and South Africa. 15 The following report describes an isolated case of systemic granulomatous disease due to hairy vetch toxicity in a beef bull.…”

Plants causing poisoning outbreaks of livestock in South America: A review

“…The genus Vicia comprises more than 150 species, including Vicia villosa and Vicia sativa ( Barros et al, 2001 ; Aguirre et al, 2021 ), which have been reported to be toxic in South America. The toxic compound that causes hairy vetch poisoning is unknown.…”

Wickenvergiftung in einem bayerischen Rinderbestand

“…), in der Rinderklinik bestens bekannt. Dagegen wird das Krankheitsbild der Wickenvergiftung in der deutschsprachigen Literatur bislang nur in 2 Lehrbüchern erwähnt, obwohl es im englischsprachigen Schrifttum bereits früh und seitdem wiederholt beschrieben worden ist 4 , 6 , 7 , 8 , 9 , 10 , 13 , 14 , 15 , 16 , 25 , 26 . Deutschsprachige Fallberichte liegen nach dem Kenntnisstand der Autoren jedoch bislang nicht vor.…”