Armies like to be able to feed and supply themselves in the event of a total war.

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These statistics demonstrate both the complexity of the supply chain from feed farm to table, and illustrate the importance of sustainability in the American food production industry.

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While the rest of the world has been disenchanted by the high level of risk, the last few years have seen China turning to Africa to feed its voracious appetite for the energy needed to supply its booming economy.

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For instance, homes equipped with solar-power panels could feed unused electricity back into the grid, adding to the total available supply.

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The losses carry on down the line to the concessionaires who feed spectators, vendors who provide hundreds of portable toilets, rental car companies that supply vehicles, hotels that house pilots and crews, and providers of aviation fuel.

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With feed costs going up, Mr Downes said he would also be forced to increase the volume of feed bought in over the winter, with the farm's ability to sustain its own supply badly hit.

BBC: Richard Downes

With the feed companies phoning incessantly to have their bills paid, Dean became concerned they might cut off his supply completely.

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"It gets a lot of cross feed of Australian passengers from Virgin and this deal is its way of strengthening that relationship and ensuring that the supply continues to grow, " he added.

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