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EVALUATING EXTENSIVE SHEEP FARMING SYSTEMS AgEcon
Stott, Alistair W.; Vosough Ahmadi, Bouda; Morgan-Davies, Claire; Dwyer, Cathy M.; Goddard, Pete; Phillips, Kate; Milne, Catherine E.; Kupiec-Teahan, Beata; Ringrose, Sian; Waterhouse, Tony.
Data from each of 5 commercial, extensive sheep farms in Cumbria, UK were used as parameters in a linear program (LP) representing labour and grazing management in such farming systems. The LP maximised ewe enterprise gross margin subject to constraints dictated by the labour availability and land types on each farm. Under the assumptions used, labour availability and price restricted ewe numbers well below those observed in practice on 2 farms i.e. land resources were adequate for the farming system practiced. On two other farms stocking levels and hence returns were limited by the availability of forage and hence feed input prices relative to output. On one farm, greater grassland productivity was the key determinant of system performance. It was...
Tipo: Working or Discussion Paper Palavras-chave: Livestock Production/Industries; Extensive; Sheep; Economics; LP.
Ano: 2009 URL: http://purl.umn.edu/61123
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Impacts of labour on interactions between economics and animal welfare in extensive sheep farms AgEcon
Vosough Ahmadi, Bouda; Dwyer, Cathy M.; Erhard, H.W.; Morgan-Davies, Claire; Waterhouse, A.; Milne, Catherine E.; Kupiec-Teahan, Beata; Ringrose, Sian; Goddard, Pete; Phillips, Kate; Stott, Alistair W..
This study quantified interactions between animal welfare and farm profitability in British extensive sheep farming systems. Qualitative welfare assessment methodology was used to assess welfare from the animal's perspective in 20 commercial extensive sheep farms and to estimate labour demand for welfare, based on the assessed welfare scores using data collected from farm inventories. The estimated labour demand was then used as a coefficient in a linear program based model to establish the gross margin maximising farm management strategy for given farm situations, subject to constraints that reflected current resource limitations including labour supply. Regression analysis showed a significant relationship between the qualitative welfare assessment...
Tipo: Conference Paper or Presentation Palavras-chave: Sheep; Labour; Animal Welfare; Linear Programme; Livestock Production/Industries; C6; Q10; Q19; Q57.
Ano: 2010 URL: http://purl.umn.edu/91803
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