The Estimated Proportion of Factory Farmed Animals in the UK from 2017 Data (Updated in 2019)
Source: Compassion in World Farming
| Animal | Measurement | No. of animals (head) | % factory farmed | No. factory farmed (head) | Basis for % factory farmed |
|---|---|---|---|---|---|
| Chickens reared for meat (broilers) | Slaughtered in 2017 | 1,090,000,000 | 89 | 970,100,000 | Poultry World, 2019 |
| Laying hens | Population at 2017 | 44,132,492 | 37.2 | 16,417,287 | CIRCABC EU 2017 |
| Broiler breeders | Population at 2017 | 10,000,000 | 90 | 9,000,000 | Estimated from broiler data |
| Turkeys | Slaughtered in 2017 | 14,000,000 | 65 | 9,000,000 | Multiple sources |
| Pigs reared for slaughter | Slaughtered in 2017 | 9,970,000 | 33 | 3,290,100 | Multiple sources |
| Breeding pigs & guilts | Population at 2017 | 416,000 | 53 | 220,480 | Free Farrowing Report 2016 |
| Cattle and calves reared for slaughter | Slaughtered in 2017 | 2,106,000 | 10 | 210,600 | Best estimate using limited data available |
| Dairy cows & heifers | Population at 2017 | 1,896,000 | 22 | 417,120 | March, M. D., et al. “Current trends in British dairy management regimens.” Journal of dairy science 97.12 (2014): 7985-7994; calculated from this, adjusting using DairyCo 2011 data on herd size |
| Beef Breeding cows | Population at 2017 | 1,589,000 | 5 | 79,450 | Best estimate using limited data available |
| Lambs & sheep reared for slaughter | Slaughtered in 2017 | 13,704,000 | 1 | 137,040 | Best estimate using limited data available |
| Breeding sheep | Population at 2017 | 16,669,000 | 0 | 0 | Best estimate using limited data available |
| Total | Farmed in 2017 | 1,204,804,461 | 84 | 1,009,261,849 |