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2013•Journal of Agricultural ScienceOpen access

Effect of Dietary Inclusion of Conjugated Linoleic Acid on Quality Indicators of Aged Pork Loin

Kristen E. Matak, Kaitlin Hope Maditz, Kimberly M Barnes, Sarah K. Beamer, Patrick Brett Kenney

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Abstract

The purpose of this study was to examine the effect of dietary inclusion of conjugated linoleic acid (CLA) in hog feed on quality indicators of pork loins. A total of twenty barrows (PIC 380 x Cambrough 1025) were randomly paired, housed in pens, and fed 1% soybean oil or 1% CLA diet for 6 weeks. There were no significant differences in proximate composition of the pork loins (P > 0.05). Muscle pH increased and there were color changes over time (P < 0.05) which was independent of diet (P < 0.05). Shear force decreased over time (P=0.017), with CLA loins having lower shear force than the control (P = 0.032). These results indicate that CLA supplementation of finishing diets resulted in pork quality similar to that of traditional diets.

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The purpose of this study was to examine the effect of dietary inclusion of conjugated linoleic acid (CLA) in hog feed on quality indicators of pork loins. A total of twenty barrows (PIC 380 x Cambrough 1025) were randomly paired, housed in pens, and fed 1% soybean oil or 1% CLA diet for 6 weeks. There were no significant differences in proximate composition of the pork loins (P > 0.05). Muscle pH increased and there were color changes over time (P < 0.05) which was independent of diet (P < 0.05). Shear force decreased over time (P=0.017), with CLA loins having lower shear force than the control (P = 0.032). These results indicate that CLA supplementation of finishing diets resulted in pork quality similar to that of traditional diets.

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Available abstract

The purpose of this study was to examine the effect of dietary inclusion of conjugated linoleic acid (CLA) in hog feed on quality indicators of pork loins. A total of twenty barrows (PIC 380 x Cambrough 1025) were randomly paired, housed in pens, and fed 1% soybean oil or 1% CLA diet for 6 weeks. There were no significant differences in proximate composition of the pork loins (P > 0.05). Muscle pH increased and there were color changes over time (P < 0.05) which was independent of diet (P < 0.05). Shear force decreased over time (P=0.017), with CLA loins having lower shear force than the control (P = 0.032). These results indicate that CLA supplementation of finishing diets resulted in pork quality similar to that of traditional diets.

Key concepts: Loin, Conjugated linoleic acid, Food science, Linoleic acid, Chemistry, Lipid oxidation, Soybean oil, Animal science

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Effect of Dietary Inclusion of Conjugated Linoleic Acid on Quality Indicators of Aged Pork Loin — Research Paper | ScholarLens