Dietary intervention is a well‐recognised approach to modifying milk yield and physicochemical characteristics. This study aimed to evaluate the effects of supplementing ewes’ diet with tannin and/or linseed oil on the physicochemical characteristics and fatty acid profile of milk, as well as the antioxidant status of dairy ewes. The study involved 36 3‐year‐old lactating Moghani sheep randomly assigned to six treatment groups. Results demonstrated that tannin extract and linseed oil changed the fatty acid content of milk. In particular, unsaturated fatty acids and conjugated linoleic acid were increased by the treatments (P < 0.05). Generally, groups receiving tannin extracts and/or oil showed higher concentrations of unsaturated fatty acids in their milk, especially polyunsaturated fatty acids including C18:3n3, C20:2, C20:3n3, C20:4n6, CLA cis‐9 trans‐11, CLA trans‐10 cis‐12, C22:2 and total unsaturated fatty acids.

中文翻译：

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单宁提取物和亚麻籽油对母乳产量，理化特性和脂肪酸谱的影响

饮食干预是公认的改变牛奶产量和理化特性的方法。这项研究旨在评估以单宁和/或亚麻子油补充母羊饮食对牛奶理化特性和脂肪酸谱以及乳母羊抗氧化状态的影响。该研究涉及36只3岁的哺乳期Moghani绵羊，它们随机分为六个治疗组。结果表明，单宁提取物和亚麻籽油改变了牛奶中的脂肪酸含量。特别是通过处理增加了不饱和脂肪酸和共轭亚油酸（P <0.05）。通常，接受单宁提取物和/或油脂的人群牛奶中的不饱和脂肪酸浓度较高，尤其是多不饱和脂肪酸，包括C18：3n3，C20：2，C20：3n3，C20：4n6，CLA cis-9 trans-11， CLA反式10顺式12，C22：2和总不饱和脂肪酸。