Figure 4From: Reduced body mass, food intake, and testis size in response to short photoperiod in adult F344 ratsDifferences in synchrony of testicular regression among rats (a) treated with an abrupt change from LD to SD in Experiment 1 and (b) held in constant SD for 52 weeks in Experiment 2. The x-axis indicates the timing of lowest testis size for individuals relative to the time of the lowest mean testis size in that experiment (time "0").Back to article page