BusinessWeek -- Drugmaker Merck & Co. said its planned venture with French counterpart Sanofi-Aventis SA to unite their animal health businesses has been delayed as regulators continue anti-trust reviews. Merck, based in Whitehouse Station, N.J. ,and Sanofi said in recent regulatory filings they now expect the deal to close in the third quarter of this year. The companies had expected to close the deal in the first half of 2011.
