Protein content increasing agent in lactating cow milk

摘要

PROBLEM TO BE SOLVED: To provide an agent for increasing a protein content in milk of a lactating cow. SOLUTION: 5-ALA which is a kind of amino acid, or a derivative thereof, or ALA which is a salt thereof is mixed with a feed and administered to a lactating cow without any treatment such as coating. There was almost no change in milk yield compared to milk collected from the dairy cow herd, but milk with a significantly higher proportion of protein, especially casein (%), was obtained. [Selection diagram] None