Table 1. Behaviour and appearance in viewing jar.
Behaviour/Physical Trait | Criteria | Nfix +/+ | Nfix +/− |
Body position | Inactive | 10% | 16% |
Active | 60% | 44% | |
Very Active | 30% | 40% | |
Tremor | Present | 0% | 0% |
Palpebral closure | Present | 100% | 100% |
Coat appearance | Normal | 100% | 100% |
Whiskers | Present | 96% | 100% |
Lacrimation | Present | 100% | 100% |
Defecation | Present | 40% | 56% |
Wild-type mice and Nfix +/− mice were placed in a large Perspex viewing jar (15 cm diameter) for approximately 2 minutes. Aspects of physical appearance and behaviour were scored during this time. No large differences were apparent between genotypes (Nfix +/+, n = 20; Nfix +/− n = 26).