The objective of this paper is to test the interactive effects of dietary fat source and slaughter weight on live performance, carcass traits, and fatty acid composition in 288 crossbred pigs. Results from this study indicate that fat source had little to no impact on live performance. However, feeding a polyunsaturated fat source altered the fatty acid profile within the first 17.4 kg of birthweight gain, therefore including %5 soybean oil in swine diets could lead to soft pork or fat. This could cause pork producers to suffer from economic ramifications based on poor quality pork.

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