A model for estimating potential market offtake from subsistence herds |
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| Authors: | PW Uys JW Hearne PM Colvin |
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| Institution: | Department of Mathematics and Applied Mathematics, University of Natal, Box 375, Pietermaritzburg, 3200, South Africa;Institute of Natural Resources, University of Natal, Box 375, Pietermaritzburg, 3200, South Africa |
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| Abstract: | A mathematical model is presented of the regional cattle herd within a subsistence pastoral system, in a semi-arid region, where empirical data on herd production are restricted to a few basic properties under average conditions.The model was developed to estimate the potential market offtake for a region in Kwazulu (Republic of South Africa). Currently, this region is overstocked and low production levels are prevalent.The model was used to simulate various offtake strategies and it was found than an approximate threefold increase in sustainable annual revenue can be achieved while simultaneously reducing grazing pressure. |
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