Izuddin Wan Ibrahim, Loh Teck Chwen, Nayan Nazri, Akit Henny, Foo Hooi Ling, Noor Ahmadilfitri Md
Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia.
Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, Serdang 43400, Malaysia.
Animals (Basel). 2023 Jul 8;13(14):2245. doi: 10.3390/ani13142245.
Palm-based oils (palm oil and kernel oil) and soybean oil have unique fatty acid and antioxidant profiles based on the compounds present in them. Hence, this study elucidated the antioxidant properties of crude palm oil (CPO), red palm oil (RPO), refined palm oil (RBD), palm kernel oil (PKO) and soybean oil (SBO) and the influence of dietary oils on blood lipid profiles, tissue fatty acid deposition and the expression of hepatic lipid and lipoprotein metabolism genes in laying hens. The oils were analyzed for color, beta-carotene, free fatty acid and acid value, phenolic content and lipid peroxidation. In an in vivo trial, 150 laying hens were allotted into five groups and supplemented with either CPO, RPO, RBD, PKO or SBO for 16 weeks. High antioxidant compounds present in palm oils help reduce the oxidation of oils. Dietary supplementation with palm oils, particularly CPO and RPO, contributed to the lower liver, serum and jejunal mucosal antioxidant enzyme activities. The antioxidant enzyme genes in the jejunal mucosa were downregulated in palm oils and PKO, but there was no difference between oils in antioxidant enzyme genes in the liver. In conclusion, dietary supplementation with oils with high antioxidant content contributed to protection against oxidation and was associated with a lower requirement for producing antioxidant enzymes.
棕榈基油（棕榈油和棕榈仁油）以及大豆油因其所含化合物而具有独特的脂肪酸和抗氧化剂成分。因此，本研究阐明了毛棕榈油（CPO）、红棕榈油（RPO）、精炼棕榈油（RBD）、棕榈仁油（PKO）和大豆油（SBO）的抗氧化特性，以及日粮油对蛋鸡血脂谱、组织脂肪酸沉积和肝脏脂质及脂蛋白代谢基因表达的影响。对这些油进行了颜色、β-胡萝卜素、游离脂肪酸和酸值、酚类含量以及脂质过氧化分析。在一项体内试验中，将150只蛋鸡分为五组，分别补充CPO、RPO、RBD、PKO或SBO，为期16周。棕榈油中存在的高抗氧化化合物有助于减少油的氧化。日粮中添加棕榈油，特别是CPO和RPO，可降低肝脏、血清和空肠黏膜抗氧化酶活性。棕榈油和PKO组空肠黏膜中的抗氧化酶基因下调，但各油组肝脏中抗氧化酶基因无差异。总之，日粮中添加高抗氧化剂含量的油有助于抗氧化保护，并与较低的抗氧化酶生成需求相关。
