1. USDA (2011a). Feedlot 2011, Part I: Management Practices on U.S. Feedlots with a Capacity of 1000 or More Head. USDA-APHIS-VS-CEAH-NAHMS. Fort Collins, CO #626.0313. [Available online at: http://www.aphis.usda.gov/animal_health/nahms/feedlot/downloads/feedlot2011/Feed11_dr_PartI.pdf]. Last accessed August 24, 2014.
2. USDA (2011d). Dairy Heifer Raiser, 2011. USDA-APHIS-VS, CEAH, NAHMS, Fort Collins, CO #613.1012. [Available online at: http://www.aphis.usda.gov/animal_health/nahms/dairy/downloads/dairyheifer11/HeiferRaiser.pdf]. Last accessed August 24, 2014.
3. USDA (2011c). Feedlot 2011, Part IV: Health and Health Management on U.S. Feedlots with a Capacity of 1000 or More Head. USDA-APHIS-VS-CEAH-NAHMS. Fort Collins, CO #638.0913. [Available online at: http://www.aphis.usda.gov/animal_health/nahms/feedlot/downloads/feedlot2011/Feed11_dr_PartIV.pdf]. Last accessed August 24, 2014.
4. USDA (2011b). Feedlot 2011, Part II: Management Practices on U.S. Feedlots with a Capacity of Fewer than 1000 Head. USDA-APHIS-VS-CEAH-NAHMS. Fort Collins, CO #627.0313. [Available online at: http://www.aphis.usda.gov/animal_health/nahms/feedlot/downloads/feedlot2011/Feed11_dr_PartII.pdf]. Last accessed August 24, 2014.