highly significantp < 0.0001
A PERMANOVA on unweighted UniFrac distances for replicate samples stored in RNAlater revealed that individual horse was highly significant (F 29,65 = 2.55, r 2 = 0.67, p < 0.0001) and day of sampling less so when controlling for individual horse (F 6,65 = 2.55, r 2 = 0.06, p = 0.0334).