title: Effects of dietary oil blend on fatty acid composition, oxidative stability and physicochemical properties of Longissimus thoracis et lumborum muscle in goats.
abstract: This study examined the effects of dietary blend of 80% canola oil and 20% palm oil (BCPO) on the physicochemical properties, antioxidant status, oxidative stability and fatty acid composition of Longissimus thoracis et lumborum (LTL) muscle from goats during chill storage. Over a 14-week feeding trial, 24 Boer bucks were randomly assigned to and supplemented with diets containing 0, 4 or 8% BCPO on a dry matter basis, slaughtered and the LTL was subjected to a 7 day chill storage. Neither diet nor post mortem ageing influenced (P > 0.05) antioxidant enzyme activities, chemical composition and cholesterol. Diet had no effect on the carbonyl content, free thiol content, water-holding capacity, tenderness, pH and glycogen. Oil-supplemented goats had higher (P < 0.05) C18:1 trans-11, C18:3n-3 and C20:5n-3, carotenoid, tocopherol and redness, and lower thiobarbituric acid reactive substances values than the control goats. Post mortem ageing decreased (P < 0.05) shear force and oxidative stability of chevon. No significant (P > 0.05) changes were found in the proportion of individual fatty acids throughout storage. Total polyunsaturated fatty acids (PUFA) decreased while total saturated fatty acids increased as storage progressed. Dietary BCPO enhanced n-3 PUFA without compromising the quality attributes of chevon.
authors.affiliation: Department of Animal Science, Faculty of Agriculture.|Department of Animal Production, University of Ilorin, PMB 1515, Ilorin, Nigeria.
authors.forename: Kazeem Dauda
authors.initials: KD
authors.lastname: Adeyemi
authors.affiliation: Department of Animal Science, Faculty of Agriculture.|Department of Animal Resource, University of Salahaddin, Erbil, Kurdistan Region, Iraq.
authors.forename: Azad Behnan
authors.initials: AB
authors.lastname: Sabow
authors.affiliation: Department of Animal Science, Faculty of Agriculture.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Abubakar
authors.affiliation: Department of Animal Science, Faculty of Agriculture.
authors.forename: Anjas Asmara
authors.initials: AA
authors.lastname: Samsudin
authors.affiliation: Department of Animal Science, Faculty of Agriculture. awis@upm.edu.my, awisqurni@gmail.com.|Halal Products Research Institute, UPM, 43400, Serdang, Malaysia. awis@upm.edu.my, awisqurni@gmail.com.|Laboratory of Animal Production, Institute of Tropical Agriculture, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia. awis@upm.edu.my, awisqurni@gmail.com.
authors.forename: Awis Qurni
authors.initials: AQ
authors.lastname: Sazili
mesh_terms: D000824:Animal Nutritional Physiological Phenomena / Q000502:physiology*; D000818:Animals; D055598:Chemical Phenomena; D004032:Diet / Q000662:veterinary*; D004042:Dietary Fats, Unsaturated / Q000008:administration & dosage*; D019587:Dietary Supplements; D005227:Fatty Acids / Q000032:analysis / Q000378:metabolism*; D015525:Fatty Acids, Omega-3 / Q000032:analysis / Q000378:metabolism; D063427:Food Quality; D061353:Food Storage; D006041:Goats / Q000378:metabolism* / Q000502:physiology*; D008297:Male; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000378:metabolism*; D010084:Oxidation-Reduction; D011180:Postmortem Changes; D013997:Time Factors
chemical_list: D004042:Dietary Fats, Unsaturated; D005227:Fatty Acids; D015525:Fatty Acids, Omega-3
keywords: ageing; antioxidant; carbonyl; cholesterol; thiol