Ever since former Sanofi ($SNY) CEO Chris Viehbacher was sent packing a couple of months back, the company has been quiet about its plans in animal health. That changed Wednesday when Chairman and acting CEO Serge Weinberg told the German publication Handelsblatt that the company is looking for growth in its veterinary products unit--and that the expansion could come in the form of acquisitions. Not surprisingly, that revelation sent shares of Zoetis ($ZTS) up briefly from their opening price of $43.85 to $44.18. Zoetis has been under pressure to put itself up for sale ever since activist investor Bill Ackman snapped up a huge stake in the company last month. Story from FiercePharma