Table 1.
Physical markers of development | PND5 | PND8 | PND11 | PND15 | PND18 | Week 16 |
---|---|---|---|---|---|---|
Weight | + | + | + | + | + | + |
Freeing of pinnae | + | + | ||||
Fur development | + | + | ||||
Incisor eruption | + | + | + | |||
Eye opening | + | + | ||||
Behavioural testing | PND5 | PND8 | PND11 | PND15 | PND18 | Week 16 |
Grasping reflex | + | + | ||||
Righting reflex | + | + | ||||
Climb/hang test | + | + | + | |||
Auditory startle | + | + | + | |||
Visual placing | + | |||||
Cliff drop aversion | + | |||||
Forelimb strength | + | + | ||||
Open field | + | + | ||||
Startle reflex (ASR/PPI) | + |
Behavioural tests were performed on all pups in a litter from postnatal day (PND) 5 to PND18 and at 16 weeks of age. +: Signifies that the test was performed that day.