Table 4. Percent fatty acid composition (>0.1%) of heart muscle.

Fatty acid	Short Photoperiod (n = 4)	Direction of Change	Long Photoperiod (n = 4)	T-test P-value
16∶0	17.9±0.6	<	20.4±0.9	<0.01
16∶1	0.5±0.5		0.7±0.5	ns
18∶0	21.0±2.2		19.8±1.5	ns
18∶1	18.6±2.9		17.6±0.8	ns
18∶2n6	22.3±0.9	>	20.4±1.0	<0.05
20∶4n6	5.5±1.3	>	3.2±0.2	<0.05
22∶6n3	12.7±1.5	<	16.9±1.3	<0.01
Rest	1.7±1.4		1.1±0.9
SFA	38.9±2.2		40.1±0.7	ns
UFA	59.4±0.9		58.9±1.1	ns
PUFA	40.4±2.7		40.5±0.6	ns
n3	12.7±1.5	<	16.9±1.3	<0.01
n6	27.7±1.2	>	23.6±1.1	<0.01