Table 4. Analysis of variance of thoracic fat according to food treatment (fed and starved), sex, age and species identity.

	Df	Mean Square	F value	Probability (F)
Food treatment	1	178.1	1598.2	<0.001
Sex	1	12.2	109.9	<0.001
Age	2	587.1	5269.2	<0.001
Species identity	1	3.2	28.5	<0.001
Food treatment: Sex	1	4.6	41.4	<0.001
Food treatment: Age	2	33.3	298.5	<0.001
Food treatment: Species identity	1	11.1	99.4	<0.001
Sex: Age	2	2.4	21.8	<0.001
Sex: Species identity	1	0.5	4.3	0.039
Age: Species identity	2	3.2	29.1	<0.001
Food treatment: Sex: Age	2	4.5	40.8	<0.001
Food treatment: Sex: Species identity	1	1.9	16.8	<0.001
Food treatment: Age: Species identity	2	5.8	52.3	<0.001
Sex: Age: Species identity	2	0.9	8.4	<0.001
Residuals	695	0.1