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Case study: Comparison of milk composition from adjacent organic and conventional farms in the USA
- Tunick, Michael H, Van Hekken, Diane L, Paul, Moushumi, Ingham, Elaine R, Karreman, Hubert J
- International journal of dairy technology 2016 v.69 no.1 pp. 137-142
- alpha-linolenic acid, case studies, conjugated linoleic acid, dairy farming, farms, fatty acid composition, geography, grazing, herds, milk, milk fatty acids, omega-3 fatty acids, weather, United States
- A study of two adjacent dairy farms, one using conventional confined herd management and the other organic management, revealed significant differences in the fatty acid composition of the milk. Compared with conventional milk, organic milk had higher levels of conjugated linoleic acid (CLA) and α‐linolenic acid (the major omega‐3 fatty acid in milk), and less stearic and linoleic acid (the major omega‐6 fatty acid in milk) during the spring–summer grazing season. When discarding geography and weather as variables, organic milk appears to yield more CLA and α‐linolenic acid, which should be beneficial to health.