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Number of dogs of each breed included in the brachycephalic dog group
| Brachycephalic dog breeds | Body weight |
|---|---|
| Pug (n = 5) |
6.2-9 kg |
| Boston terrier (n = 4) |
9 -14 kg |
| English bulldog (n = 3) |
15-25 kg |
| French bulldog (n = 4) |
9-12 kg |
| Pekingese (n = 3) |
3-5 kg |
| Maltese (n = 3) |
3-4.8 kg |
| Bolonka Zwetna (n = 2) |
2.2kg; 3 kg |
| Papillon (n = 2) |
2.5 kg; 2.8 kg |
| Yorkshire terrier (n = 4) |
1.8-2.9 kg |
| Shih Tzu (n = 3) |
7.5-8.2 kg |
| Chihuahua (n = 2) | 2.4 kg; 3 kg |
