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Minimum Cost Feeding of Dairy Cows in Northern Victoria

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  • Marnie Griffith

Abstract

A new era of water scarcity has changed past patterns of feeding dairy cows in northern Victoria. This paper derives a model for estimating least-cost feeding of dairy cows under a range of assumptions regarding prices for irrigation water, hay and feed grain. The cost-minimisation is subject to a variety of nutritional constraints, including seasonal provision of energy, fibre and protein. It is found that the optimal feeding regime varies considerable with input prices, from an irrigated pasture-based system to a diet based much more on bought-in hay and feed grain. This change broadly mimics that which has taken place in the region over the current extended period of drought. Output from the linear programming model is used to estimate the CES substitution parameter between water and the other inputs. This parameter is estimated at 0.7, significantly higher than the 0.2 originally used.

Suggested Citation

  • Marnie Griffith, 2010. "Minimum Cost Feeding of Dairy Cows in Northern Victoria," Centre of Policy Studies/IMPACT Centre Working Papers g-195, Victoria University, Centre of Policy Studies/IMPACT Centre.
    • Handle: RePEc:cop:wpaper:g-195
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    References listed on IDEAS

    as
    1. Ho, Christie K.M. & Nesseler, R. & Doyle, Peter T. & Malcolm, Bill, 2005. "Future dairy farming systems in irrigation regions," AFBM Journal, Australasian Farm Business Management Network, vol. 2(1), pages 1-10.
    2. Ho, Christie K.M. & Malcolm, Bill & Armstrong, Dan P. & Doyle, Peter T., 2006. "A case study of changes in economic performance of an irrigated dairy farm in northern Victoria," AFBM Journal, Australasian Farm Business Management Network, vol. 3(1), pages 1-10.
    3. Ho, Christie K.M. & Armstrong, Dan P. & Doyle, Peter T. & Malcolm, Bill, 2005. "Impacts of changing water price and availability on irrigated dairy farms in northern Victoria," AFBM Journal, Australasian Farm Business Management Network, vol. 2(2), pages 1-7.
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    Cited by:

    1. Marnie Griffith, 2010. "Culling dairy cows as a response to drought in northern Victoria," Centre of Policy Studies/IMPACT Centre Working Papers g-200, Victoria University, Centre of Policy Studies/IMPACT Centre.

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    More about this item

    JEL classification:

    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • Q15 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Land Ownership and Tenure; Land Reform; Land Use; Irrigation; Agriculture and Environment
    • Q25 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Water

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