The effect of a strictly The effect of a strictly vegetable diet on the spontaneous activity, the rate of growth, and the longevity of the albino rat effectofstrictly00slon Year: 1912 12 EFFECT OF DIET ON THE ALBINO RAT omnivorous and vegetarian feeders grows rapidly less and less. The same may be said regarding the amount of daily activity of the two classes. The omnivorous female far surpasses all others. The omni- vorous male comes next in order. Then follows the vegetarian female, Revolutions 14000 13000 12000 11000 10000 9000 8000 TOOO i\ t \ 6000 3000 AgwuiMouthit 5 fO /is ' ' 20 25 3
The effect of a strictly The effect of a strictly vegetable diet on the spontaneous activity, the rate of growth, and the longevity of the albino rat effectofstrictly00slon Year: 1912 12 EFFECT OF DIET ON THE ALBINO RAT omnivorous and vegetarian feeders grows rapidly less and less. The same may be said regarding the amount of daily activity of the two classes. The omnivorous female far surpasses all others. The omni- vorous male comes next in order. Then follows the vegetarian female, Revolutions 14000 13000 12000 11000 10000 9000 8000 TOOO i\ t \ 6000 3000 AgwuiMouthit 5 fO /is ' ' 20 25 30 . Fig. II. Curves representing the average daily activity of each sex of the exercised rats at the ages indicated. The heavy solid line (OM) is the omnivorous males, the heavy dotted line (OF) is of the omnivorous females. The light solid line (VM) is the vegetarian males. The light dotted line (VF) is the vegetarian females. closely followed by the vegetarian male. The females of each class thus surpass the males of the same group in average daily activity. When we consider the time in life at which these rats do the great- est amount of daily running we see, on consulting the curves of Figure II, that it occurs in both classes at an early age in life, usually between the seventh and twelfth month. In the omnivorous feeders it is a little later than in the vegetarians. In a former experiment^ it was ascer- tained that the greatest average daily run of the normal male and female occurred when they had reached a trifle more than one-third of their
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