Table 2.

Blood concentrations of fatty acids at baseline and at 16 weeks in dogs receiving fish oil or corn oil supplementation

Variable	Fish oil			Corn oil			Between groups
	Baseline	End of trial	P-value/direction	Baseline	End of trial	P-value/direction	Baseline P-value	End P-value
Fatty acids, %
PA, C16:0	15.44 ± 1.38	14.99 ± 1.88	0.191	14.99 ± 1.31	14.60 ± 1.28	0.002 ↓	0.183	0.336
SA, C18:0	21.42 ± 1.49	21.38 ± 1.65	0.891	21.87 ± 1.62	21.85 ± 1.67	0.919	0.246	0.252
OLA, C18:1 ω-9	9.57 ± 1.43	9.43 ± 2.41	0.758	9.13 ± 1.23	8.90 ± 1.14	0.243	0.180	0.255
PO, C16:1 ω7	0.99 ± 0.35	0.85 ± 0.30	0.004 ↓	0.91 ± 0.28	0.87 ± 0.25	0.407	0.339	0.739
LA, C18:2 ω-6	22.97 ± 2.36	20.91 ± 2.26	<0.001 ↓	23.17 ± 2.60	24.13 ± 2.79	0.007 ↑	0.743	<0.001 b
GLA, C18:3 ω-6	0.19 ± 0.07	0.13 ± 0.05	<0.001 ↓	0.17 ± 0.07	0.20 ± 0.10	0.018 ↑	0.322	0.001 b
EDA, C20:2 ω6	0.32 ± 0.09	0.31 ± 0.09	0.545	0.37 ± 0.08	0.36 ± 0.08	0.625	0.065	0.044 b
DHGLA, C20:3 ω-6	0.88 ± 0.19	0.81 ± 0.27	0.111	0.95 ± 0.24	0.89 ± .25	0.011 ↓	0.246	0.223
AA, C20:4 ω-6	19.48 ± 2.26	14.2 ± 2.06	<0.001 ↓	19.48 ± 2.59	20.15 ± 2.51	0.030 ↑	0.995	<0.001 b
ALA, C18:3 ω-3	0.33 ± 0.11	0.31 ± 0.08	0.353	0.33 ± 0.14	0.34 ± 0.28	0.919	0.971	0.632
EPA, C20:5 ω-3	0.98 ± 0.48	6.81 ± 2.96	<0.001 ↑	1.04 ± 0.44	0.70 ± 0.31	<0.001 ↓	0.633	<0.001 a
DPA, C22:5 ω-3	2.07 ± 0.45	3.11 ± 0.99	<0.001 ↑	2.16 ± 0.62	1.96 ± 0.57	0.004 ↓	0.529	<0.001 a
DHA, C22:6 ω-3	1.52 ± 0.59	3.00 ± 1.04	<0.001 ↑	1.56 ± 0.71	1.30 ± .50	0.006 ↓	0.790	<0.001 a

P-values for changes within and between groups; significant (P < 0.05) values bolded. ^aHigher values in the fish oil group; ^bHigher values in the corn oil group. See Table 1 for fatty acid abbreviations. ↑ Value increased significantly; ↓ Value decreased significantly