Diet selection by sheep and goats in the Noorsveld

References

• Acocks , JPH . 1988 . Veld types of South Africa , Memoirs of the Botanical Survey of South Africa 57
   Google Scholar
• Anon. 1991 . Landbou‐ontwikkelingsprogram, Karoostreek , Middelburg : Grootfontein Agricultural Development Institute .
   Google Scholar
• Aucamp , AJ and Barnard , HH . 1980 . The development of the animal production potential of the dry grass‐bush communities of the eastern Cape . Proceedings of the Grassland Society of Southern Africa , 15 : 137 – 140 .
   Google Scholar
• Blom , CD . 1981 . Group classification of karoo plants , Middelburg : Grootfontein Agricultural Development Institute . Unpublished report,
   Google Scholar
• Botha , P . 1983 . A comparison between the diets of small and large stock on mixed Karoo veld . Proceedings of the Grassland Society of Southern Africa , 18 : 101 – 105 .
   Google Scholar
• Botha , P . 1984 . Veld: determination of animal ratios on the Noorsveld in the Karoo, based on diet selection by Merino and Dorper sheep and Angora and Boer goats , Middelburg : Grootfontein Agricultural Development Institute . Unpublished research project,
   Google Scholar
• Botha , P . 1986a . Weigewoontes van merinoskape . Karoo Agric , 3 (7) : 1012
   Google Scholar
• Botha , P . The need for physiological models of Karoo plant guilds for the estimation of grazing capacity . Paper presented at the 2nd annual research meeting of the Karoo Biome Project . Prince Albert.
   Google Scholar
• Bredon , RM , Torell , DT and Marshall , B . 1967 . Measurement of selective grazing of tropical pastures using oesophageal fistulated steers . Journal of Range Management , 20 : 317 – 320 .
   Google Scholar
• Chippindall , LKA . 1946 . The common names of grasses in South Africa , Bulletin 265 Pretoria : Department of Agriculture .
   Google Scholar
• Coetzee , PJS . 1937 . Management and preservation of Karoo veld . Farming in South Africa , 12 : 287 – 288 .
   Google Scholar
• Dugmore , TJ , Du Toit , PCV and Morning , SJ . 1991 . Dietary selection by steers grazing kikuyn . South African Journal of Animal Science , 21 : 194 – 197 .
   Web of Science ®Google Scholar
• Du Toit , PCV , Botha , WvD , Blom , CD , Becker , HR , Olivier , DJ , Meyer , EM and Barnard , GZJ . 1995 . Estimating grazing index values for Karoo plants , Technical Communication 239 Pretoria : Department of Agriculture .
   Google Scholar
• Gibbs Russell , GE , Welman , WG , Retief , E , Immehnan , KL , Germishuisen , G , Pienaar , BJ , Van Wyk , M and Nicholas , A . 1987 . List of species of southern African plants () , 2nd edn , Memoirs of the Botanical Survey of South Africa 56
   Google Scholar
• Gibbs Russell , GE , Watson , L , Koekemoer , M , Smook , L , Barker , NP , Anderson , HM and Dallwitz , MJ . 1990 . Grasses of southern Africa , Memoirs of the Botanical Survey of South Africa 58
   Google Scholar
• Heady , HF and Torell , DT . 1959 . Forage preferences exhibited by sheep with oesophageal fistulas . Journal of Range Management , 12 : 28 – 34 .
   Google Scholar
• Meissner , HH , Hofmeyr , HS , Van Rensburg , WJJ and Pienaar , JP . 1983 . Classification of livestock for realistic prediction of substitution values in terms of a biologically defined large stock unit , Technical Communication 175 Pretoria : Department of Agriculture .
   Google Scholar
• Novellie , P and Strydom , G . 1987 . Monitoring the response of vegetation to use of large herbivores: an assessment of some techniques . South African Journal of Wildlife Research , 17 : 109 – 117 .
   Web of Science ®Google Scholar
• Roux , PW . 1953 . The Noorsveld . Farming in South Africa , 28 : 227 – 231 .
   Google Scholar
• Roux , PW . 1963 . The descending‐point method of vegetation survey. A point sampling method for the measurement of semi‐open grasslands and Karoo vagetation in South Africa . South African Journal of Agricultural Science , 6 : 273 – 288 .
   Google Scholar
• Roux , PW . 1968 . “ Principles of veld management in the Karoo and the adjacent dry sweet‐grass veld ” . In The small stock industry in South Africa , Edited by: Hugo , WJ . 318 – 340 . Pretoria : Government Printer .
   Google Scholar
• Smith , CA . 1966 . Common names of South African plants , Memoirs of the Botanical Survey of South Africa 35
   Google Scholar
• Tainton , NM , Edwards , PJ and Mentis , MT . 1980 . A revised method for assessing veld condition . Proceedings of the Grassland Society Southern Africa , 15 : 37 – 42 .
   Google Scholar
• Willmott , CJ . 1981 . On the validation of models . Physical Geography , 2 : 184 – 194 .
   Google Scholar
• Willmott , CJ . 1982 . Some comments on the evaluation of model performance . Bulletin of the American Meteorological Society , 63 : 1309 – 1313 .
   Web of Science ®Google Scholar
• Willmott , CJ and Wicks , DE . 1980 . An empirical method for the spatial interpolation of monthly precipitation within California . Physical Geography , 1 : 59 – 73 .
   Google Scholar