Vicia villosa

Show simple item record Botha, C.J. (Christoffel Jacobus) Venter, Elna
dc.contributor.other University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology
dc.coverage.spatial Africa en
dc.coverage.spatial South Africa en 2009-04-16T08:06:17Z 2009-04-16T08:06:17Z 2002
dc.description Colour photos. Final web-ready size: JPEG. Photo 1: 44.6 kb, 96 ppi; Photo 2: 122 kb, 96 ppi; Photo 3: 20.1 kb, 72 ppi; Photo 4: 7.16 kb, 72 ppi. Original TIFF file housed at the Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology, University of Pretoria. en
dc.description.abstract DISTRIBUTION: Imported plant. Cultivated as pasture in the Western and Eastern Cape and Northern province. en
dc.description.abstract BOTANICAL DESCRIPTION: General: Grows up to 1 m high. Generally a good fodder, though various toxic syndromes have been associated with it. Leaves: Compound leaf with a characteristic tendril at the end of the midrib which twines around other plant material. Flowers: Purple blue pea-like flowers in an erect raceme. Spring - Summer. Fruit: Small erect pods en
dc.description.abstract TOXIC PRINCIPLE: Unknown. Unable to reproduce experimentally. Only circumstantial evidence. en
dc.description.abstract SYSTEMS AFFECTED: Skin and appendages. en
dc.description.abstract CLINICAL SIGNS: • Problem in cattle. • Occurs in adult cattle (more than 3 years old). • Seen in dark breeds (Holstein-Friesians, Aberdeen Angus) which graze for a relative long period (more than 1 month) on green pasture and consume large quantities. • Latent period 2 - 6 weeks. • Severe dermatitis and pruritus noticed initially. • Roughened coats, alopecia. • Cracks develop in the skin, serum oozes out, crust formation, tissue under crusts are severely inflamed. • Later, skin becomes unpliable, hard. • Severe exudative to ulcerative dermatitis. • Pigmented and non-pigmented skin are affected. (Compare with photosensitivity) • Mucous membranes affected - conjunctivitis, salivation, mucopurulent nasal discharge. • Coughing, dyspnoea. • Severe diarrhoea - even haemorrhagic. • Drop in condition, emaciation, dehydration, drop in milk production. • Sick for one week, may take 1 month before they die. • Older animals more severely affected. • Up to 35% morbidity and high mortality. en
dc.description.abstract NECROPSY: HISTOPATHOLOGY: 1. Granulomatous lesions in various organs. - Infiltration of lymphocytes, monocytes and eosinophils in lesion. - Granulomas in kidney, spleen, liver, myocardium and skin. 2. Skin: - multifocal, - ulcerative dermatitis with hyperkeratosis, - oedema, - cell infiltration and fibrosis. en
dc.description.abstract TREATMENT: Antibiotics, fluid and electrolyte replacement, local skin treatment. en
dc.description.uri en
dc.identifier.citation Botha, CJ & Venter, E 2002, 'Plants poisonous to livestock Southern Africa (CD-ROM)' University of Pretoria, Faculty of Veterinary Science, Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology, Pretoria, South Africa. en
dc.rights ©University of Pretoria. Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology (Original and digital). Provided for educational purposes only. It may not be downloaded, reproduced or distributed in any format without written permission of the original copyright holder. Any attempt to circumvent the access controls placed on this file is a violation of copyright laws and is subject to criminal prosecution. Please contact the collection administrator for copyright issues. en
dc.source Original format: University of Pretoria, Faculty of Veterinary Science. en
dc.subject Plant poisoning en
dc.subject Toxicology en
dc.subject Plant poisoning in animals en
dc.subject Poisonous plants en
dc.subject Cattle en
dc.subject Dermatitis en
dc.subject Pruritis en
dc.subject.lcsh Poisonous plants -- Toxicology -- Africa, Southern en
dc.subject.lcsh Veterinary toxicology en
dc.title Vicia villosa en
dc.title.alternative Vetch en
dc.title.alternative Wieke en
dc.title.alternative Hairy vetch en
dc.title.alternative Broad-leaved vetch en
dc.title.alternative Breëblaarperswieke en
dc.type Still Image en

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