Effects of photoperiod and temperature on the body mass, thermogenesis, and serum leptin levels of Apodemus draco (Rodentia: Muridae) in the Hengduan Mountain region, China

Zoological Studies

Table 2 Effects of photoperiod and temperature on wet organ masses of A. draco

Parameter	SD-cold (n= 10)	SD-warm (n= 10)	LD-cold (n= 10)	LD-warm (n= 10)
Heart (g)	0.270 ± 0.026 a	0.237 ± 0.012 a	0.238 ± 0.010 a	0.232 ± 0.009 a
Lungs (g)	0.327 ± 0.017 a	0.307 ± 0.034 a	0.320 ± 0.011 a	0.310 ± 0.016 a
Liver (g)	1.977 ± 0.136 a	1.597 ± 0.173 b	1.752 ± 0.071 a	1.575 ± 0.046 b
BAT (g)	0.227 ± 0.020 a	0. 195 ± 0.038 b	0.220 ± 0.012 a	0.193 ± 0.010 b
Kidneys (g)	0.203 ± 0.017 a	0.190 ± 0.020 a	0.193 ± 0.006 a	0.183 ± 0.010 a
Spleen (g)	0.020 ± 0.001 a	0.019 ± 0.003 a	0.020 ± 0.002 a	0.020 ± 0.001 a
Stomach (g)	0.411 ± 0.016 a	0.402 ± 0.015 a	0.395 ± 0.016 a	0.397 ± 0.010 a
Small intestine (g)	0.763 ± 0.024 a	0.701 ± 0.045 b	0.743 ± 0.023 a	0.655 ± 0.030 b
Cecum (g)	0.440 ± 0.015 a	0.423 ± 0.026 a	0.438 ± 0.025 a	0.421 ± 0.022 a
Large intestine (g)	0.353 ± 0.020 a	0.340 ± 0.032 a	0.342 ± 0.016 a	0.336 ± 0.011 a

Different lowercase letters in a given row indicate a significant difference (p < 0.05). BAT, brown adipose tissue; SD, short photoperiod; LD, long photoperiod.