Occurrence of Methyl Sulfide in Milk from Cows Fed Fresh, Dried, or Stored Alfalfa

Methyl sulfide (Me~S) concentrations in milk and Me~S peak heights in blood plasma and tureen fluid from cows fed various alfalfa test meals were determined. Comparisons of Me~S levels were made when cows were fed green and oven-dried alfalfa at vegetative and bloom stages; also, when fed sun-cured and oven-dried alfalfa after storage.