Table 1.
Disaccharidase activity in purified brush border membrane vesicles isolated from proximal, middle, and distal regions of the small intestine of dogs and cats
| Specific Activity, nmol mg−1 min−1 |
|||
|---|---|---|---|
| Region of Small Intestine |
|||
| Proximal | Middle | Distal | |
| Dogs (n = 12) | |||
| Lactase | 254 ± 32 | 309 ± 31 | 40 ± 9 |
| Sucrase | 302 ± 61 | 234 ± 33 | 158 ± 39 |
| Maltase | 1627 ± 158 | 1241 ± 158 | 759 ± 222 |
| Cats (n = 10) | |||
| Lactase | 82 ± 36 | 188 ± 22 | 100 ± 11 |
| Sucrase | 68 ± 11 | 82 ± 5 | 113 ± 10 |
| Maltase | 355 ± 57 | 400 ± 24 | 479 ± 52 |
Values are given as means ± SD.