The best replacement for swine is pig.

The best alternatives to swine are rated as following:
★★★★★  pig
★★★  regular flu
★★  h1n1
★  pig difference
★  pigs
  hogs
  swines
  porcine
  pearls
  sars
  common cold

Your alternative for swine is not listed? Suggest!
Speaking about swine, one probably shouldn't forget about pearls.

Other search terms related to swine and their ratings are:
★★★★★ pearls
★★ swine
You have in mind a companion for swine and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of swine in all years. Click on graph for more.
swine
pig
regular flu