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Influence of dietary canola oil and palm oil blend and refrigerated storage on fatty acids,myofibrillar proteins,chemical composition,antioxidant profile and quality attributes of semimembranosus muscle in goats

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Journal of Animal Science and Biotechnology 2016年第3期7卷 353-365页

作者： Kazeem D.Adeyemi Azad B.Sabow Rafiat M.Shittu Roselina Karim awis q.sazili Department of Animal Science Faculty of Agriculture43400 UPMSerdangSelangorMalaysia Halal Products Research Institute 43400 UPMSerdangSelangorMalaysia Laboratory of Animal Production Institute of Tropical Agriculture43400 UPMSerdangSelangorMalaysia Department of Food Technology Faculty of Food Science and TechnologyUniversiti Putra Malaysia43400 UPMSerdangSelangorMalaysia Department of Animal Production University of IlorinPMB 1515IlorinNigeria Department of Animal Resource University of SalahaddinErbilKurdistan RegionIraq

Background： Improving the unsaturated fatty acid content of ruminant meat is essential due to the generally saturated nature of fatty acids in ruminant meat and the negative effects this can have on human health. Nonetheless, enhancing the unsaturated fatty acid content of ruminant meat can have adverse effects on the shelf life and quality attributes of the meat. This study assessed the effects of dietary 80 % canola oil and 20 % palm oil blend（CPOB） on fatty acid composition, antioxidants, oxidative spoilage, cholesterol and physicochemical properties of semimembranosus（SM）muscle from goats. Twenty four Boer bucks were randomly assigned to diets containing on dry matter basis 0, 4 and8 % CPOB, fed for 100 d and slaughtered. The carcasses were subjected to a 7 d postmortem refrigerated storage. Al analyses were conducted on the SM ***： Diet had no effect（P 〉 0.05） on the concentration of free thiol and carbonyl and the band intensity of myosin heavy chain, actin and troponin T. The muscle glycogen, p H, water holding capacity, tenderness, glutathione peroxidase（GPX） activity, total carotenoid, δ-tocopherol, cholesterol and proximate composition did not differ（P 〉 0.05） between diets. The SM muscle from goats fed 4 and 8 % CPOB had lower（P 〈 0.05） concentration of C14：0 and C16：0 and higher（P 〈 0.05） concentration of C18：1 trans-11, C18：1ω-9, C18：3ω-3, C20：5ω-3 and C22：5ω-3 than the SM muscle from the control goats. Dietary CPOB increased（P 〈 0.05） the concentration of α and γ tocopherol and meat redness（a＊） on d1 and 4 postmortem. Regardless of diet, antioxidant vitamins, and shear force decreased（P 〈 0.05） while drip loss, lipid and protein oxidation increased（P 〈 0.05） as postmortem storage ***： Results evince that dietary CPOB can be used as a management tool to enhance the beneficial fatty acids and antioxidant contents of chevon without deleterious effects on its physicochemical properties and shelf life.

关键词： Actin Cholesterol Lipid oxidation Meat quality Myosin Protein oxidation

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Effects of feeding whole linseed on ruminal fatty acid composition and microbial population in goats

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Animal Nutrition 2016年第4期2卷 323-328页

作者： Kamaleldin Abuelfatah Abu B.Zuki Yeng M.Goh awis q.sazili Abdelrahim Abubakr Faculty of Animal Production Khartoum University Faculty of Veterinary Medicine University Putra Malaysia Institute of Biosciences University Putra Malaysia Department of Animal Science Faculty of Agriculture University Putra Malaysia Institute of Tropical Agriculture University Putra Malaysia Department of Animal Nutrition College of Animal Production University of Bahri

The objective of the present study was to evaluate the effect of feeding different levels of whole linseed,as a source of n-3 polyunsaturated fatty acids(PUFA), on ruminal fatty acid composition and microbial population in the goat. Twenty-four crossbred Boer goats were assigned to 3 dietary treatments: LO(control), L10 and L20 containing 0,10%, or 20% whole linseed, respectively. The ruminal pH and concentration of total volatile fatty acids(VFA) were not affected by dietary treatments. The feeding of L10 and L20 diets produced higher(P quid of goats.

关键词： Whole linseed Rumen Microbial population Fatty acid Goat

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