This study was conducted to determine the effect of dietary supplementation of n-3 fatty acids (O3FA) with or without elevated concentrations of protein on the performance of sows during the first and the subsequent parity. Results indicated that O3FA alone during lactation improved the growth of nursing piglets, regardless of parity. However, the O3FA diet, with or without elevated protein, did not affect first-parity gestation performance, although O3FA alone may have improved piglet birth weight in the subsequent litter.

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