Melica decumbens

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 2008-12-19T08:59:12Z 2008-12-19T08:59:12Z 2002
dc.description Colour photos. Final web-ready size: JPEG. Photo 1: 37.3 kb, 72 ppi; Photo 2: 2.33 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: It grows usually in the shade of trees or shrubs between rocks. Most common on hillsides, but also on plains and roadsides. en
dc.description.abstract BOTANICAL DESCRIPTION: General: A relatively short, coarse, densely tufted grass. Leaves: Very coarse, erect and usually rolled. Flowers: The spikelets are covered with soft hairs and mostly arranged on one side of the axis. Glumes are papery and usually purple. October to April. en
dc.description.abstract TOXIC PRINCIPLE: Indications are that mycotoxin producing endophytes are the cause of the syndrome. en
dc.description.abstract SYNDROMES: “Dronkgras poisoning”. en
dc.description.abstract SYSTEMS AFFECTED: Central nervous system. en
dc.description.abstract CLINICAL SIGNS: A tremorgenic, usually non-fatal, not uncommon syndrome of cattle and sheep on Melica decumbens in late winter and early spring, following good winter rain in the eastern Karoo and Eastern Cape Province where this grass is prevalent. Essentialy identical to Kweek tremors. • Stimulation and exertion (exercise) often precipitate symptoms. • All stages of nervous derangement seen from: Hypersensitivity; Mild involuntary trembling to spastic tremors of individual muscle groups; Nodding of head, shaking of limbs or trunk. • Ataxia, stiff-legged gait, side-ways progression, falling and inability to get up to complete prostration (recumbency). • Some cases show hypersensitivity and paddling movements like heartwater. • Adopt position of sternal recumbency. Except for outspoken cases, animals remain alert and retain their appetites. When withdrawn from infected pastures recover rapidly over a few days. en
dc.description.abstract NECROPSY: • Nothing specific. en
dc.description.abstract TREATMENT: • Symptomatic. • Remove from infected pasture and allow to recover. 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 Dronkgras af
dc.subject Mycotoxin en
dc.subject.lcsh Poisonous plants -- Toxicology -- Africa, Southern en
dc.subject.lcsh Veterinary toxicology en
dc.title Melica decumbens en
dc.title.alternative Staggers grass en
dc.title.alternative Dronkgras af
dc.type Still Image en

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