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Slide Collection (Paraclinical Sciences - Pharmacology & Toxicology): Recent submissions

  • Chenopodiaceae 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    Beetroot, goosefoot, spinach, beet, hondebossie, spinasie.
  • Sorghum species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Sorghum is cultivated mostly in the drier parts of the summer-rainfall areas such as Mpumalanga, Free State and the Northwest. Grain sorghum is cultivated for human consumption, while various feed sorghums ...
  • Ergot alkaloids 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    FUNGI, GRASSES AND SEDGES INVOLVED: Festuca spp. (Neotyphodium coenophialum) Lolium spp. (Claviceps purpurea) Cyperus esculentus (Clacviceps cyperi).
  • Helichrysum argyrosphaerum 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • It occurs in sandy areas – often a weed in disturbed places • Widespread
  • Cynodon dactylon 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: It grows in all types of soil, especially sandy soil and fertile soil. It is found in disturbed places such as road reserves, gardens and cultivated lands.
  • Pteronia pallens 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Mostly on stony hillslopes and/or calciferous soil.
  • Chrysocoma ciliata 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: It is widely distributed in the Karoo on a variety of soil types, ecxept in brackish areas, where it does not flourish.
  • Asteraceae 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Annuals, ephemeral growth (“opslag”) or perennials. Often cultivated in gardens.
  • Amaranthus species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    MECHANISM OF ACTION: In the rumen nitrate is reduced to nitrite and following absorption haemoglobin is oxidised to methaemoglobin.
  • Stenocarpella maydis 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: One of the most prevalent moulds on harvested maize throughout the world. Diplodia ear rot is caused by the fungus Diplodia maydis. Maize is produced mainly in the North-West, the north-western, northern and ...
  • Nerium species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • An exotic plant that can be found in suburban gardens throughout southern Africa. • Originally from Europe. • Nerium oleander is now a declared weed in South Africa.
  • Cynanchum species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • C. ellipticum and C. obtusifolium grows over trees and shrubs in the coastal bush along the eastern coast line. • C. africanum is most common in the south-western, southern and south-eastern Cape Provinces.
  • Aspergillus clavatus 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • This distinctive species is a common soil fungus with widespread distribution in soils in warmer climates • It also is quite widely distributed in some kinds of foods, especially cereals.
  • Phomopsis leptostromiformis 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Lupins are cultivated chiefly in the southern and south-western areas of the Cape province as a fodder crop.
  • Allium species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Not usually cultivated as animal feed. When market prices are low or crops are damaged by hail etc., it is sometimes fed to stock.
  • Panicum species 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Grows in fertile, damp soil, usually in the shade.
  • Microcystis aeruginosa 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Gauteng, Mpumalanga, N.E. Free State, Vaal dam, Hartebeespoort dam and Roodeplaat dam, now also Western and Eastern Cape Provinces. Botanical description: General: • These fresh water, blue-green algae ...
  • Thevetia peruviana 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • An exotic ornamental shrub planted in suburban gardens • Originating in South America.
  • Sarcostemma viminale 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: • Widespread in bushveld and grassland, generally in hot parts of the country on a variety of soil types • Usually among trees and bushes
  • Brassicaceae 
    Botha, C.J. (Christoffel Jacobus); Venter, Elna; University of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology (2002)
    DISTRIBUTION: Not usually cultivated as animal feed. Japanese radishes & kale are produced as feed for livestock. When market prices are low or crops are damaged by hail, etc., it is sometimes fed to stock.