commiss direct eec june amend council direct eec product anim nutrit commiss european commun regard treati establish european econom commun regard council direct eec june product anim nutrit amend commiss direct eec articl thereof direct eec content annex regularli adapt account advanc scientif technic knowledg studi protein nitrogen compound ammonium sulfat hydroxyanalogu methionin calcium salt permit benefici effect rumin establish author product question extend categori anim measur provid direct accord stand committe feedingstuff adopt direct articl annex direct eec amend set annex direct articl member state bring forc law regul administr provis compli articl june latest immedi inform commiss thereof member state adopt provis refer direct accompani refer time offici public procedur refer adopt member state articl direct address member state brussel june commiss rené steichen member commiss oj oj annex group protein nitrogen compound point ammonium salt product ad tabl oj hydroxi analogu methionin calcium salt hydroxyanalogu methionin