Buy a cow immediately. AVOID PUTTING ANY BEARS IN THE WAREHOUSE. If you get one in, restart. Best is to just click a couple of times on the bears to give the dogs a head start. Once the cow drops a milk, grab it and start processing it. You're now free to grab a bear, which you can sell with the cow immediately.
Keep working the milk through the process while the truck returns. Once it does, buy a pig, upgrade your storage to max, upgrade the plane a couple of times and send it for 1 cheese making bottle and 1 tray. You want to catch bears here just to stop them from crashing into your buildings . . . you can forget about the pig after it drops a ham or, if you're feeling guilty about leaving it to the bears, you can ship it off for sale.
Click on the meat buildings to speed the ham through, send the butter to the cheese factory and let the dogs play with the bears . . /
You'll be done in plenty o' time.