Figure 2From: Reduced body mass, food intake, and testis size in response to short photoperiod in adult F344 ratsMean ± SE of change in body weight (a) and mean ± SE of daily food intake (b) in adult F344 rats over 16 weeks in LD or SD. Mean body weight at Week 0 was 333 ± 4 g for each treatment group. Standard error bars are not shown for data points in which error bars were smaller than the symbols. Asterisks indicate significant differences at P < 0.05.Back to article page