National Agricultural Statistics Service (NASS). A tremendous site that gives a calendar for the release of all the reports from how many eggs we produce to how much wool and then hot-links you to the report from the monthly category: http://www.usda.gov/nass/pubs/rptscal.htm
Agricultural industry association listing, hundreds of sites for US (country and state) and international country, to include breed association headquarters and much more: http://agniclib.east.asu.edu/atmic_agriassn.htm
Livestock:
National Agricultural Statistics Service (NASS). A tremendous site that gives a calendar for the release of all the reports from how many eggs we produce to how much wool and then hot-links you to the report from the monthly category: http://www.usda.gov/nass/pubs/rptscal.htm