The objective of these experiments was to determine how changes in dietary DE concentration, achieved through graded changes in diet composition, would affect the performance and carcass composition of growing pigs. It was found that the value per pig was unaffected by increasing dietary energy content and returns above feed costs were reduced. Increasing the energy density of the diet for growing pigs through incremental changes in dietary composition had a variable impact on overall growth performance and carcass quality. Also increasing the dietary DE was found to have no effect on variations in BW at the time of marketing.

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