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Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition
[NOT OCR'D] Grazing animals in the semi-arid tropics are subjected to short or long periods of moderate to severe undernutrition. Many simulation models were developed to represent the mechanisms of ruminant adaptation. These mechanisms include, among others, the differential mobilization of tissues...
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| Format: | Thesis |
| Language: | English |
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Department of Mathematics and Applied Mathematics
2023
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| _version_ | 1867613235161595904 |
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| access_status_str | Open Access |
| author | Witten, Gareth |
| author2 | Richardson, David |
| author_browse | Richardson, David Witten, Gareth |
| author_facet | Richardson, David Witten, Gareth |
| author_sort | Witten, Gareth |
| collection | Thesis |
| description | [NOT OCR'D] Grazing animals in the semi-arid tropics are subjected to short or long periods of moderate to severe undernutrition. Many simulation models were developed to represent the mechanisms of ruminant adaptation. These mechanisms include, among others, the differential mobilization of tissues, the recycling of nitrogen to the rumen via the saliva and across the rumen wall, and the relation between intake and animal size. However, most simulation models have attempted to represent the mechanisms for above-maintenance nutritional restrictions. In this study, a simulation model, a linked rumen and intermediary metabolism model (RUMET), is developed to simulate rumen function and nutrient utilization during continuous growth, undernutrition (submaintenance) and realimentation for growing cattle. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/38393 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:54.720Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Department of Mathematics and Applied Mathematics |
| publisherStr | Department of Mathematics and Applied Mathematics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/38393 Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition Witten, Gareth Richardson, David Applied Mathematics [NOT OCR'D] Grazing animals in the semi-arid tropics are subjected to short or long periods of moderate to severe undernutrition. Many simulation models were developed to represent the mechanisms of ruminant adaptation. These mechanisms include, among others, the differential mobilization of tissues, the recycling of nitrogen to the rumen via the saliva and across the rumen wall, and the relation between intake and animal size. However, most simulation models have attempted to represent the mechanisms for above-maintenance nutritional restrictions. In this study, a simulation model, a linked rumen and intermediary metabolism model (RUMET), is developed to simulate rumen function and nutrient utilization during continuous growth, undernutrition (submaintenance) and realimentation for growing cattle. 2023-09-05T14:13:50Z 2023-09-05T14:13:50Z 2002 2023-09-05T14:13:36Z Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/38393 eng application/pdf Department of Mathematics and Applied Mathematics Faculty of Science |
| spellingShingle | Applied Mathematics Witten, Gareth Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| thesis_degree_str | Doctoral |
| title | Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| title_full | Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| title_fullStr | Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| title_full_unstemmed | Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| title_short | Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| title_sort | mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition |
| topic | Applied Mathematics |
| url | http://hdl.handle.net/11427/38393 |
| work_keys_str_mv | AT wittengareth mathematicalmodelsofthephysiologicalmechanismsaffectingtheadaptationofgrowingcattleduringandafteraperiodofundernutrition |