Table 1.

The regressions against ambient temperature for each organ.

Organ	Intercept (g)	Gradient (g)	r2	F	P
Females:
Body mass (g)	40.556 ± 0.713	0.016471 ± 0.031043	0.003	0.282	0.597
Liver (g)	2.289 ± 0.088	−0.024482 ± 0.003838	0.322	40.842	0.000
Heart (g)	0.229 ± 0.006	−0.001509 ± 0.000277	0.262	30.493	0.000
Lung (g)	0.244 ± 0.012	0.000533 ± 0.000518	0.012	1.055	0.307
Spleen (g)	0.168 ± 0.008	−0.001582 ± 0.000340	0.201	21.689	0.000
Kidney (g)	0.583 ± 0.013	−0.004985 ± 0.000578	0.464	74.327	0.000
Stomach (g)	0.353 ± 0.013	−0.001719 ± 0.000563	0.100	9.572	0.003
SI (g)	1.527 ± 0.064	−0.017703 ± 0.002795	0.318	40.110	0.000
LI (g)	0.344 ± 0.016	−0.003796 ± 0.000706	0.255	29.359	0.000
Caecum (g)	0.142 ± 0.008	−0.000906 ± 0.000351	0.073	6.791	0.011
Fat depot (g)	2.387 ± 0.197	0.043081 ± 0.008581	0.227	25.305	0.000
Carcass (g)	26.929 ± 0.571	0.028548 ± 0.024865	0.015	1.318	0.254
Males:
Body mass (g)	52.048 ± 0.935	−0.082984 ± 0.040703	0.046	4.157	0.054
Liver (g)	2.677 ± 0.065	−0.019621 ± 0.002840	0.350	46.337	0.000
Heart (g)	0.263 ± 0.007	−0.000939 ± 0.000283	0.108	10.465	0.002
Lung (g)	0.259 ± 0.011	0.000525 ± 0.000463	0.009	0.758	0.386
Spleen (g)	0.181 ± 0.011	−0.000727 ± 0.000476	0.027	2.359	0.128
Kidney (g)	0.906 ± 0.018	−0.008578 ± 0.000767	0.591	124.302	0.000
Stomach (g)	0.503 ± 0.024	−0.003136 ± 0.001062	0.093	8.839	0.004
SI (g)	1.802 ± 0.055	−0.019141 ± 0.002399	0.426	63.800	0.000
LI (g)	0.423 ± 0.016	−0.004890 ± 0.000677	0.376	51.796	0.000
Caecum (g)	0.169 ± 0.009	−0.001232 ± 0.000379	0.108	10.453	0.002
Fat depot (g)	4.750 ± 0.336	0.064716 ± 0.014643	0.186	19.601	0.000
Carcass (g)	35.377 ± 0.720	−0.067756 ± 0.031358	0.051	4.669	0.034

SI, small intestine; LI, large intestine. Data are intercept ± standard deviation or gradient ± standard deviation.