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Linear Programming and Pig Feed Formulation

B. Kearney
Irish Journal of Agricultural Economics and Rural Sociology
Vol. 3, No. 2 (1971), pp. 145-155
Stable URL: http://www.jstor.org/stable/25556356
Page Count: 11
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Linear Programming and Pig Feed Formulation
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Abstract

Linear programming is being increasingly used in many countries in the determination of least-cost livestock rations subject to certain quality specifications. In this example, the technique is applied to pig feed formulation where the choice of ingredients is varied in accordance with their availability. The least-cost ration of the basic quality chosen was comprised of wheat, native pollard, beet pulp, milo, soyabean, fishmeal, limestone flour and salt and the cost of the ingredients was £31.87 per ton of ration. This increases to £33.21 in the event of maize, milo and wheat being unavailable. Imported pollard, grassmeal and groundnut meal would appear to be over priced in relation to the ration qualities considered. The inclusion of skim milk where it is available would be justified on a cost basis up to a price marginally below 2 1/2p per gallon.

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