Table 3.

Results of GLM analysis of organ masses, including lengths of gut components, of bank voles exposed to a long-day or short-day photoperiod

Sex
Photoperiod
Body mass
OrganFPFPFP
Subcutaneous fat 3.28 0.09 5.65 0.03  ns 
Mesenteric fat 12.7 0.002 11.1 0.004  ns 
Abdominal fat 0.54 0.47 5.56 0.03 10.3 0.01 
Brown adipose tissue 2.46 0.14 2.27 0.15 5.16 0.04 
Stomach 19.9 <0.001 0.30 0.59  ns 
Small intestine (SI)       
   Mass 1.74 0.20 0.17 0.69  ns 
   Length 6.32 0.02 0.48 0.50 18.8 <0.001 
Large intestine (LI)       
   Mass 15.1 0.001 2.88 0.11 4.74 0.04 
   Length 1.18 0.29 0.16 0.69  ns 
Caecum (C)       
   Mass 10.4 0.01 0.82 0.38 6.49 0.02 
   Length 0.20 0.66 2.51 0.13  ns 
LI+C       
   Mass 15.5 0.001 1.76 0.20 7.79 0.01 
   Length 1.03 0.32 1.88 0.19  ns 
Whole gut (SI+LI+C)       
   Mass 11.4 0.004 0.34 0.57 6.57 0.02 
   Length 7.25 0.02 1.87 0.19 14.4 0.001 
Reproductive organs 217.9 <0.001 7.40 0.02  ns 
Thyroid 0.13 0.72 0.05 0.83 5.59 0.03 
Spleen 0.03 0.85 0.50 0.49  ns 
Pancreas 3.41 0.08 0.31 0.59  ns 
Liver 10.3 0.01 0.47 0.50 35.1 <0.001 
Kidneys 3.40 0.08 0.24 0.63 30.4 <0.001 
Heart 1.19 0.29 0.86 0.37 12.1 0.003 
Lungs 3.81 0.07 0.00 0.98  ns 
Tail 3.88 0.07 0.11 0.74 5.42 0.03 
Pelage 6.51 0.02 0.19 0.67 6.99 0.02 
Carcass 26.5 <0.001 2.55 0.13 70.5 <0.001 
Sex
Photoperiod
Body mass
OrganFPFPFP
Subcutaneous fat 3.28 0.09 5.65 0.03  ns 
Mesenteric fat 12.7 0.002 11.1 0.004  ns 
Abdominal fat 0.54 0.47 5.56 0.03 10.3 0.01 
Brown adipose tissue 2.46 0.14 2.27 0.15 5.16 0.04 
Stomach 19.9 <0.001 0.30 0.59  ns 
Small intestine (SI)       
   Mass 1.74 0.20 0.17 0.69  ns 
   Length 6.32 0.02 0.48 0.50 18.8 <0.001 
Large intestine (LI)       
   Mass 15.1 0.001 2.88 0.11 4.74 0.04 
   Length 1.18 0.29 0.16 0.69  ns 
Caecum (C)       
   Mass 10.4 0.01 0.82 0.38 6.49 0.02 
   Length 0.20 0.66 2.51 0.13  ns 
LI+C       
   Mass 15.5 0.001 1.76 0.20 7.79 0.01 
   Length 1.03 0.32 1.88 0.19  ns 
Whole gut (SI+LI+C)       
   Mass 11.4 0.004 0.34 0.57 6.57 0.02 
   Length 7.25 0.02 1.87 0.19 14.4 0.001 
Reproductive organs 217.9 <0.001 7.40 0.02  ns 
Thyroid 0.13 0.72 0.05 0.83 5.59 0.03 
Spleen 0.03 0.85 0.50 0.49  ns 
Pancreas 3.41 0.08 0.31 0.59  ns 
Liver 10.3 0.01 0.47 0.50 35.1 <0.001 
Kidneys 3.40 0.08 0.24 0.63 30.4 <0.001 
Heart 1.19 0.29 0.86 0.37 12.1 0.003 
Lungs 3.81 0.07 0.00 0.98  ns 
Tail 3.88 0.07 0.11 0.74 5.42 0.03 
Pelage 6.51 0.02 0.19 0.67 6.99 0.02 
Carcass 26.5 <0.001 2.55 0.13 70.5 <0.001 

Reproductive organs were the only tissue to have a significant interaction for sex*pp, the result was F=4.94, P=0.04.

Values in bold indicate significant differences.

ns, not significant.

GLM, general linear model.

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