Fig. 6: Rotating rod outcomes at D + 15, D + 22 and D + 30.

Negative binomial regression modeling the number of each rotating rod outcome per animal, i.e., falls (a), hanging on for 3 turns (b), jumps (c) and refusals (d), at D + 15, D + 22 and D + 30 according to diet. Each animal, depicted by a point, can be assigned a value from 0 to 5 out of 5 trials for each outcome. The curve and its 95% confidence interval are generated using a mixed generalized model with a negative binomial distribution. The VF curve differed significantly from the DF curve only for ‘falls’ and ‘hanging on for 3 turns’ outcomes (p = 0.025 and p = 0.046, respectively). n = 25 in each diet group at D + 15; n = 25 (DF) and n = 24 (VF) at D + 22; n = 24 (DF) and n = 25 (VF) at D + 30.