MARION LABS <MKC> VOTES SPLIT, DIVIDEND HIKE Marion Laboratories Inc said its board declared a two-for-one common stock split in the form of a dividend, with distribution April 21, record March 25. The board also said it intends to increase the regular quarterly dividend by 43 pct, to five cts a share, reflecting the split. It said the increase will be declared at the May 1987 board meeting and reflected in regular payments beginning in July 1987.