Table 2.

Activity Score. Activity was defined from very active (score 6) to moribund (score 1) according to the activity scoring system.

Level	Quality	Characteristics of behavior
6	Very active	Strong, curious, fast motions
5	Active	Curious, fast, sporadic, activity breaks
4	Reduced activity	Attentive, frequent activity breaks
3	Quiet	Disinterested on environment, rare activity, sleepy
2	Lethargic	No activity, persist in one position, no food uptake
1	Moribund	No activity, reduced vital functions, death is expected