Figure 10.

Case of decreased general health condition was identified through automated body weight measurement but not by locomotion tracking. After oral gavage of vehicle (methocel), rat 6 was noticed during health scoring because of low body weight. (A) Automated body weight tracking illustrates body weight difference of rat 6 compared with the group average (n = 18). (B) Weight gain of individual rats during the first 7 d after dosing of a vehicle solution by oral gavage. The accuracy of automated compared with manual body weight measurements is illustrated in Figure 4. (C) Locomotion of individual rats during the first 7 d after dosing by oral gavage. Data are shown as the sum of detections at all antennas during 7 d for each rat.