Table 1.

Summary table of principal component analysis (PCA), indicating importance of each nutritional component in the diets preferred in kennel dogs, standard deviation, and the percentage of explanation of variation linked to each principal component.

	Principal Component Eigenvectors
Nutritional Components1	PC1	PC2	PC3	PC4	PC5	PC6	PC7	PC8	PC9	PC10
DM	0.32	−0.07	0.56	0.29	−0.40	0.03	0.19	−0.15	−0.39	−0.35
CP	0.39	−0.09	−0.34	−0.18	−0.58	0.01	0.39	0.14	0.06	0.43
CF	−0.14	−0.09	−0.20	0.90	0.03	0.10	0.17	0.22	0.13	0.13
EE	0.46	−0.14	−0.11	0.13	0.27	0.05	−0.47	−0.05	−0.52	0.41
NFE	−0.37	−0.09	0.59	−0.08	0.08	0.06	0.21	0.03	−0.08	0.66
ASH	0.14	0.54	0.08	0.22	−0.12	−0.29	−0.13	−0.59	0.32	0.26
Ca	0.12	0.55	0.10	0.00	0.13	−0.47	0.11	0.61	−0.21	−0.01
P	0.14	0.52	0.08	−0.04	0.04	0.82	−0.01	0.14	0.06	0.01
LIP	0.42	−0.10	0.03	−0.04	0.62	−0.01	0.60	−0.19	0.15	−0.05
ME	0.38	−0.27	0.39	0.01	−0.01	−0.04	−0.36	0.35	0.62	0.01
	Principal Component Eigenvalues
SD	1.91	1.59	1.12	1.02	0.79	0.58	0.46	0.44	0.36	0.18
% of Variance	36.61	25.26	12.53	10.31	6.30	3.36	2.08	1.90	1.33	0.32
Cumulative %	36.61	61.87	74.40	84.70	91.01	94.36	96.44	98.35	99.68	100.0

¹ Principal component (PC), dry matter (DM), crude protein (CP), crude fiber (CF), ether extract (EE), nitrogen-free extract (NFE), ash, calcium (Ca), phosphorus (P), total lipids (LIP), metabolizable energy (ME), standard deviation (SD).