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Validity of Weight Estimation Models in Pigs Reared under Different Management Conditions

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dc.contributor.author Sungirai, M.
dc.contributor.author Masaka, L.
dc.contributor.author Benhura, T. M.
dc.date.accessioned 2015-06-14T22:22:03Z
dc.date.available 2015-06-14T22:22:03Z
dc.date.issued 2014
dc.identifier.doi 10.1155/2014/530469
dc.identifier.uri http://hdl.handle.net/10390/8322
dc.description.abstract A study was carried out to determine the relationship between linear body measurements and live weight in Landrace and Large White pigs reared under different management conditions in Zimbabwe. Data was collected for body length, heart girth, and live weight in 358 pigs reared under intensive commercial conditions. The stepwise multiple linear regression method was done to develop amodel using a randomselection of 202 records of pigs.Themodel showed that age, body length, and heart girthwere useful predictors of liveweight in these pigswith significantly high positive correlations observed.Themodelwas internally validated using records of the remaining 156 pigs and there was a significantly high positive correlation between the actual and predicted weights. The model was then externally validated using 40 market age pigs reared under communal conditions and there was a significantly low positive correlation between the actual and predicted weights. The results of the study show that while linear measurements can be useful in predicting pig weights the appropriateness of the model is also influenced by the management of the pigs. Models can only be applicable to pigs reared under similar conditions of management. en_US
dc.language English en_US
dc.publisher Hindawi en_US
dc.subject weight estimation; pigs; production system en_US
dc.title Validity of Weight Estimation Models in Pigs Reared under Different Management Conditions en_US
dc.type Article en_US
dc.citation.jtitle Veterinary Medicine International en_US


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