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The effects of weather variability on growth potential of Afrikaner cattle in a semi-arid region in Zimbabwe

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dc.contributor.advisor Bartkowiak Higgo, A. J.
dc.contributor.advisor Anim, D. F. K.
dc.contributor.author Chipfupa, Lukas
dc.date.accessioned 2013-07-25T12:39:11Z
dc.date.available 2013-07-25T12:39:11Z
dc.date.issued 2013-07-25
dc.identifier.citation Chipfupa, Lukas (2013) The effects of weather variability on growth potential of Afrikaner cattle in a semi-arid region in Zimbabwe, University of South Africa, Pretoria, <http://hdl.handle.net/10500/10198> en
dc.identifier.uri http://hdl.handle.net/10500/10198
dc.description Only part of the abstract could be included due to the rest having renderable text
dc.description.abstract The abiotic environment plays an important role in cattle production. Key abiotic elements evaluated in this study are rainfall and temperature. This study was carried out to assess the effect and contribution of rainfall and temperature, amid other factors, on pre- and post-weaning growth traits of Afrikaner cattle at Matopos Research Institute from 1958 to 1997. Historical data generated from a genotype x environment interaction study at Matopos Research Institute was used to identify factors associated with the average daily weight gain of calves of Afrikaner cattle breed. A total of 10 700 records were retrieved comprising of birth weight (BW), 90 day weight, 205 day weight and early post-weaning weight as well as additional corresponding rainfall and temperature data from 1958 to 1997. The rainfall and temperature data was computed asrainfall and temperature variability. The data was corrected for heteroscedasticity using the generalized least squares approach (GLS) before running an ordinary least square regression (OLS) analysis to determine the association between growth rate and potential explanatory factors for average daily weight gain, pre-weaning weight gain and early post-weaning weight gain. en
dc.format.extent 1 online resource (xx, 116 leaves)
dc.language.iso en en
dc.rights University of South Africa
dc.subject Abiotic elements en
dc.subject Rainfall en
dc.subject Temperature en
dc.subject Afrikaner cattle en
dc.subject Weather en
dc.subject Matopos Research Institute en
dc.subject.ddc 636.0096891
dc.subject.lcsh Cattle -- Environmental aspects -- Zimbabwe
dc.subject.lcsh Arid regions climate -- Zimbabwe
dc.subject.lcsh Arid regions ecology -- Zimbabwe
dc.subject.lcsh Climatice changes -- Zimbabwe
dc.subject.lcsh Cattle -- Breeding -- Environmental aspects -- Zimbabwe
dc.subject.lcsh Cattle -- Climatic factors -- Zimbabwe
dc.subject.lcsh Matopos Research Institute
dc.title The effects of weather variability on growth potential of Afrikaner cattle in a semi-arid region in Zimbabwe en
dc.type Dissertation en
dc.description.department Agriculture and  Animal Health en
dc.description.degree M. Sc. (Agriculture)


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