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Table 1.

Body mass (mb), snout–vent length (SVL),digestive organ length, and organ dry mass for each group

HibernatingFastingFeedingF and P values
Body size     
   mb (g) 77.9 (±5.3) 66.3 (±5.0) 68.7 (±8.0) F2,19=0.82; P<0.46 
   SVL (cm) 9.225 (±0.309) 8.558 (±0.252) 8.999 (±0.333) F2,19=1.31; P<0.29 
Gut length (cm)     
   Stomach 2.6 (±0.2)a 3.7 (±0.2)b 4.2 (±0.2)c F2,18=24.8; P<0.0001 
   Small intestine 9.8 (±1.2)a 14.7 (±1.1)b 18.9 (±1.0)c F2,18=22.7; P<0.0001 
   Large intestine 2.4 (±0.3) 2.4 (±0.2) 2.8 (±0.2) F2,18=1.18; P<0.33 
Dry mass (mg)     
   Stomach 0.128 (±0.020)a 0.227 (±0.017)b 0.310 (±0.017)c F2,18=24.3; P<0.0001 
   Large intestine 0.054 (±0.011) 0.038 (±0.010) 0.057 (±0.010) F2,18=1.08; P<0.37 
   Liver 0.576 (±0.074)a 0.728 (±0.057)a,b 0.847 (±0.055)b F2,16=3.74; P<0.001 
   Kidneys 0.084 (±0.007)a 0.087 (±0.006)a 0.111 (±0.006)b F2,18=5.51; P<0.02 
   Heart 0.067 (±0.005) 0.084 (±0.005) 0.076 (±0.005) F2,18=2.62; P<0.10 
   Lungs 0.108 (±0.011) 0.093 (±0.010) 0.111 (±0.009) F2,18=1.00; P<0.39 
   Fat bodies 0.947 (±0.582)a 2.833 (±0.495)b 3.278 (±0.497)b F2,18=4.83; P<0.03 
   Gonads (males) 0.019 (±0.018) 0.020 (±0.014) 0.031 (±0.015) F2,6=0.18; P<0.84 
   Gonads (females) 0.538 (±0.176) 0.205 (±0.140) 0.179 (±0.159) F2,8=0.37; P<0.71 
HibernatingFastingFeedingF and P values
Body size     
   mb (g) 77.9 (±5.3) 66.3 (±5.0) 68.7 (±8.0) F2,19=0.82; P<0.46 
   SVL (cm) 9.225 (±0.309) 8.558 (±0.252) 8.999 (±0.333) F2,19=1.31; P<0.29 
Gut length (cm)     
   Stomach 2.6 (±0.2)a 3.7 (±0.2)b 4.2 (±0.2)c F2,18=24.8; P<0.0001 
   Small intestine 9.8 (±1.2)a 14.7 (±1.1)b 18.9 (±1.0)c F2,18=22.7; P<0.0001 
   Large intestine 2.4 (±0.3) 2.4 (±0.2) 2.8 (±0.2) F2,18=1.18; P<0.33 
Dry mass (mg)     
   Stomach 0.128 (±0.020)a 0.227 (±0.017)b 0.310 (±0.017)c F2,18=24.3; P<0.0001 
   Large intestine 0.054 (±0.011) 0.038 (±0.010) 0.057 (±0.010) F2,18=1.08; P<0.37 
   Liver 0.576 (±0.074)a 0.728 (±0.057)a,b 0.847 (±0.055)b F2,16=3.74; P<0.001 
   Kidneys 0.084 (±0.007)a 0.087 (±0.006)a 0.111 (±0.006)b F2,18=5.51; P<0.02 
   Heart 0.067 (±0.005) 0.084 (±0.005) 0.076 (±0.005) F2,18=2.62; P<0.10 
   Lungs 0.108 (±0.011) 0.093 (±0.010) 0.111 (±0.009) F2,18=1.00; P<0.39 
   Fat bodies 0.947 (±0.582)a 2.833 (±0.495)b 3.278 (±0.497)b F2,18=4.83; P<0.03 
   Gonads (males) 0.019 (±0.018) 0.020 (±0.014) 0.031 (±0.015) F2,6=0.18; P<0.84 
   Gonads (females) 0.538 (±0.176) 0.205 (±0.140) 0.179 (±0.159) F2,8=0.37; P<0.71 

Values presented are absolute means ± 1 s.e.m. (for mb and SVL) and adjusted means ± 1 s.e.m. (for the remaining variables; covariates: SVL=8.934 cm, carcass dry mass=13.2 g). Different letters indicate significant differences (P<0.05) after a Tukey HSD test

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