Fig. 4From: Huddling remodels gut microbiota to reduce energy requirements in a small mammal species during cold exposureEffects of huddling and cold on the concentrations of short-chain fatty acids (SCFAs). The concentrations of acetic acid (a), propionic acid (b), butyric acid (c), isobutyric acid (d), valeric acid (e), and isovaleric acid (f) in huddling and separated Brandt’s voles at warm and cold Ta (n = 7–9/group). *P < 0.05Back to article page