Patent ID: 8906407

Claim:
A feedstuff for ruminants, characterized as having a small variation coefficient comprising ruminant milk yield feed and a nutritive amount of coated particles of methionine or salt thereof in platelet-shaped or round crystal form, wherein the coating consists of a one-layer application of a rumen-protected shell, and the particles have a diameter between 400 and 600 μm, where in the protective shell is 4 to 30 wt. % based on total weight of said coated particles, wherein the layer consists of ethyl cellulose, wherein the layer imparts to the coated particle delayed-release properties and protection rates in an in-vitro rumen release test after 6 h of 60-90% and of 10-60% after 24 h, wherein the coated particles exhibit mechanical stability during feed pelleting and wherein after pelleting in milk yield feed, protection rates of the coated particle in an in-vitro rumen release test after 6 h of at least 26% are obtained.