71 citations
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December 1987 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Hair analysis is not a precise way to measure livestock's mineral status but can help when used with other methods.
July 2004 in “Journal of the American Dietetic Association” Many Korean preschool children have low zinc levels, which may affect their growth, and zinc supplements could help.
30 citations
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November 1985 in “American Journal of Veterinary Research” Switch hair can indicate magnesium and copper levels in beef cows.
October 2014 in “Journal of Nutrition & Food Sciences” Higher copper and lower chromium and selenium in hair are linked to insulin resistance in visceral-obese adults.
16 citations
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March 2007 in “The Veterinary clinics of North America. Food animal practice” Proper mineral supplementation in cow-calf operations prevents health issues and economic losses.