Cotyledon orbiculata

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 2008-12-17T10:20:52Z 2008-12-17T10:20:52Z 2002
dc.description Colour photos. Final web-ready size: JPEG. Photo 1: 7.7 kb, 72 ppi; Photo 2: 19.3 kb, 72 ppi; Photo 3: 43.1 kb, 96 ppi. Original TIFF file housed at the Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology, University of Pretoria. en
dc.description.abstract DISTRIBUTION: Occurs in grassland and bushveld in sandy, well-drained spots. en
dc.description.abstract BOTANICAL DESCRIPTION: General: This is a succulent perennial plant, which grows between 50cm and 1 metre high when in flower. It has thick stems that root everywhere where they touch the soil. Leaves: The fleshy leaves vary greatly in size and shape, from broadly ovate to oblong to lanceolate. They are covered with a thin waxy bloom and usually pale blue-green with red-rimmed margins. Flowers: The waxy tubular flowers, carried in a terminal inflorescence, vary in colour from light orange to pink, but are usually coral-red, and pendulous. All flower parts in fives. en
dc.description.abstract TOXIC PRINCIPLE: • Contains four extremely cumulative bufadienolides, namely: - Orbicuside A, B, C, D. • The flowers are more toxic than the leaves and the toxicity of plants differ both within and between localities. • Soil-type may influence toxicity - e.g. C. orbiculata growing on black clay is less toxic than those plants growing on sandy soils. en
dc.description.abstract SYNDROME: Cumulative bufadienolides (Krimpsiekte) en
dc.description.abstract SYSTEMS AFFECTED: Cardiovascular system. en
dc.description.abstract CLINICAL SIGNS: Cotyledon orbiculata can cause both acute intoxication and krimpsiekte under natural conditions. Krimpsiekte is a disease of small stock (sheep and goats). • Krimpsiekte is basically a paretic syndrome. • Affected animals lag behind the flock. • When forced to move, they tire easily and lie down or stand trembling, typically with the feet together, the back arched and the head low. • The neck may be twisted and the head may dangle loosely as the animal walks. en
dc.description.abstract NECROPSY: Acute poisoning: Nothing specific Histopathology: Thalamic vacuolisation has been reported with krimpsiekte. en
dc.description.abstract TREATMENT: • Acute intoxication: dose 2g/kg activated charcoal. • Large dose is essential. • Adsorption and fixation of excess in rumen. • Even retro-diffusion back from plasma. • Minimize stress to prevent catecholamine release. With krimpsiekte treatment is symptomatic and supportive. 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 Bufadienolides en
dc.subject Krimpsiekte en
dc.subject.lcsh Poisonous plants -- Toxicology -- Africa, Southern en
dc.subject.lcsh Veterinary toxicology en
dc.title Cotyledon orbiculata en
dc.title.alternative Crassulaceae en
dc.title.alternative Pig's ears en
dc.title.alternative Honde-oor plakkie af
dc.title.alternative Kouterie en
dc.type Still Image en

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