human versus animal

• 1,000 humans produce as much total solids as:
20 dairy cows
60 beef feeder cattle
280 feeder pigs
6 200 laying hens
11 000 broiler chickens

• 1,000 humans produce as much Total Nitrogen as:
40 dairy cows
90 beef feeder cattle
340 feeder pigs
7 000 laying hens
12 000 broiler chickens

• 1,000 humans produce as much Total Phosphorus as:
30 dairy cows
70 beef feeder cattle
190 feeder pigs
3 800 laying hens
8 600 broiler chickens

• 1,000 humans produce as much Total coliform bacteria as:
30 dairy cows
1 300 beef feeder cattle
10 000 feeder pigs
130 000 laying hens


Dairy Cattle - mature cows
total manure per cow: 68.7 L / day

Beef Cattle - feeders
total manure per animal: 21.3 L / day

Pigs - feeder pigs
total manure per pig: 5.8 L / day

Chickens - laying hens
total manure per chicken: 0.2 L / day

Chickens - broilers
total manure per chicken: 0.07 L / day

from: 'human versus animal: a comparison of waste properties'
fleming and ford, university of guelph, july 2001.