<；P>；PROBLEM TO BE SOLVED: To provide a livestock feed additive including marine mineral components containing in-vivo essential trace elements. <；P>；SOLUTION: The livestock feed additive includes a marine mineral complex containing a macro-scale and in-vivo essential trace elements including residual substance which is obtained by treating a seawater concentrated solution containing organic components derived from picoplanktons in the seawater, and minerals chelated by the organic components, with acetic acid, and eliminating sodium chloride and toxic components, and contains chelated mineral components, as active ingredients. The livestock feed additive preferably includes the marine mineral complex enriched in calcium, as an active ingredient. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
