Here are some links that may help you look for the particular information you need.
National Pork Producers Council http://www.nppc.org
National Pork Board http://www.pork.org
Agriculture Marketing Service http://www.usda.gov/ams/division.htm
Agriculture Information Sites http://www.agric.gov.ab.ca
American Meat Institute https://www.meatinstitute.org/
Chicago Mercantile Exchange https://www.cmegroup.com/
National Agri-Marketing Association http://www.nama.org
Agriculture Weather Information Service http://www.awis.com
National Hog Farmer http://www.NationalHogFarmer.com