National Agricultural Statistics Service (NASS)
The NASS unit of the USDA, conducts a number of comprehensive annual surveys on U.S. agriculture (including the Census of Agriculture), and summarizes these findings on an annual basis. The numerous reports and data found on the site include national and state data, as well as information categorized by specific agriculture sector (plants, animals, and end products).
Please review NASS website directly for a complete list of available reports and data. Examples of items of specific interest include: 1) [By Farmed Animal & End Product Sector] Production, Disposition, and Income Annual Summary 2) Agricultural Statistics Database (Detailed statistics on various farmed animal sectors, published every five years) 3) Charts and maps of various farmed animal sectors 4) Statistical bulletins (1987-2002) 5) Trends in U.S. Agriculture (by segment) 6) Sample surveys and statistical bulletins on specific farmed animal sectors.