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Public Health Considerations Associated with the
Industrial Food Animal Production Model
Keeve Nachman, PhD
Johns Hopkins University
Copyright © 2012 Johns Hopkins University and Keeve Nachman. Creative Commons Attribution-NonCommercial-ShareAlike License 3.0.
Lecture Overview
n 
Industrial food animal production overview
n 
Antibiotics in animal agriculture case study
n 
Arsenical drugs case study
n 
Food animal production abroad
3
Section A
An Introduction to Industrial Food Animal Production
Section Overview
n 
What is industrial food animal production?
n 
Changes in farm structure and process
n 
Animal waste
n 
Threats to human health and the environment
n 
Challenges in IFAP research
5
IFAP
6
IFAP
Source: USGS
7
IFAP
Source: EPA
8
IFAP
Photo by Socially Responsible Agricultural Project. Creative Commons BY-NC-ND.
9
AFOs, CAFOs, and IFAP
n 
EPA definition for animal feeding operation (AFO)
- 
- 
n 
Concentrated animal feeding operation (CAFO)
- 
n 
Animals stabled/confined and fed/maintained for 45 days per
year
Crops, vegetation, forage not sustained in normal growing
season over any portion of the lot or facility
>1,000 animal units = >1,000,000 pounds of live weight
Industrial food animal production—characterized by …
- 
- 
- 
- 
- 
High throughput production methods
One site
Controlled conditions
Uniform consumer product
Small profit margins
10
Transformation of Food Animal Production
n 
Food animal production in the US has been transformed over the
last 50 years
Source: USDA National Agricultural Statistics Service. The Census of Agriculture.
11
Transformation of Food Animal Production
n 
Food animal production in the US has been transformed over the
last 50 years
Source: USDA National Agricultural Statistics Service. The Census of Agriculture.
12
Transformation of Food Animal Production
n 
Food animal production in the US has been transformed over the
last 50 years
Source: USDA National Agricultural Statistics Service. The Census of Agriculture.
13
Localization of Production
(Aho, 2003)
n 
1949
- 
- 
n 
Poultry processing plants
Each dot represents a plant
processing 50,000 or more
chickens each year
2007
-  Chicken production
-  Each dot represents annual
production of 1 million or
more chickens
(USDA, 2009)
14
Vertical Integration/Contract Production
n 
Structure extremely common (more than 90 percent) in poultry
and swine industries (Martinez/USDA, 2002)
n 
Integrators
-  Own animals
-  Control inputs
- 
Own processing plants
n 
Growers
-  Operate under contract
-  Own animal waste
n 
“Farmers”?
15
2009–2010 Slaughter and Inventory Statistics for US Livestock
Animal
Slaughtered per year
Inventory
8,658,860,000
Not given
Hogs
113,733,800
64,400,000
Cattle & calves
33,300,000
93,700,000
Sheep & lambs
2,611,200
6,900,000
245,768,000
Not given
Chickens
Turkeys
Total
9,054,273,000
--Source: USDA 2010
16