Effect of dietary fish oil, alpha-tocopheryl acetate, and zinc supplementation on the composition and consumer acceptability of chicken meat.
A factorial design was used to study the effect of dietary fish oil (1.25% and 2.5%), all-rac-alpha-tocopheryl acetate (70 and 140 mg/kg), and Zn supplementation (0 and 200 mg/kg) on the composition and consumer acceptability of chicken meat stored at -20 degrees C for 5 mo. Supplementation of the diet with all-rac-alpha-tocopheryl acetate increased the alpha-tocopherol content in meat. The fatty acid composition of the meat was affected only by the amount of fish oil. Diets supplied with 2.5% fish oil produced meat with an eicosapentaenoic and docosahexaenoic acid content double that of diets supplied with 1.25% fish oil. Zn supplementation did not affect the content of this mineral in the meat. Moreover, the consumer acceptability of meat samples showed no significant differences between dietary treatments after 5 mo of storage at -20 degrees C or with respect to a freshly cooked commercial sample used as a blind control.
Nutrition and Food Science Department-CeRTA, Faculty of Pharmacy, University of Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain.
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Bou
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Guardiola
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Tres
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Barroeta
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Codony
D000818:Animals; D000975:Antioxidants / Q000008:administration & dosage* / Q000378:metabolism; D002645:Chickens; D003258:Consumer Behavior; D019587:Dietary Supplements; D004305:Dose-Response Relationship, Drug; D005227:Fatty Acids / Q000032:analysis; D005260:Female; D005395:Fish Oils / Q000008:administration & dosage* / Q000378:metabolism; D005511:Food Handling / Q000379:methods; D008460:Meat / Q000032:analysis / Q000592:standards*; D010084:Oxidation-Reduction; D011897:Random Allocation; D015032:Zinc / Q000008:administration & dosage* / Q000378:metabolism; D024502:alpha-Tocopherol / Q000008:administration & dosage* / Q000378:metabolism
D000975:Antioxidants; D005227:Fatty Acids; D005395:Fish Oils; D024502:alpha-Tocopherol; D015032:Zinc