. 2020 Nov 6;25(21):5173. doi: 10.3390/molecules25215173

Table 3.

Trace elements (mg/100 g DM) contents of the studied dry dog foods ¹.

No ²	Microelements				Heavy Metals ⁵
No ²	Cu	Fe	Mn	Zn	Co	Cd	Pb	Mo	Cr	Ni
1	2.374 ^kl	55.99 ^s	4.035 ^l	21.22 ^hi	BDL	BDL	BDL	BDL	BDL	BDL
2	2.501 ^mn	99.56 ^x	6.505 ^p	11.11 ^abcd	BDL	BDL	BDL	BDL	BDL	BDL
3	2.157 ^j	49.47 ^p	4.429 ^m	9.52 ^a	BDL	BDL	BDL	BDL	BDL	BDL
4	2.604 ^o	56.25 ^s	4.589 ⁿ	10.45 ^ab	BDL	BDL	BDL	BDL	BDL	BDL
5	1.277 ^a	72.61 ^u	5.936 ^o	10.58 ^abc	BDL	BDL	BDL	BDL	BDL	BDL
6	1.218 ^a	29.25 ^f	3.142 ⁱ	13.02 ^abcde	BDL	BDL	BDL	BDL	BDL	BDL
7	2.578 ^no	33.60 ⁱ	4.526 ^mn	15.72 ^def	BDL	BDL	BDL	BDL	BDL	BDL
8	2.142 ^j	44.05 ^m	21.210 ^v	15.90 ^defg	BDL	BDL	BDL	BDL	BDL	BDL
9	1.904 ^gh	29.79 ^f	9.522 ^t	10.98 ^abcd	BDL	BDL	BDL	BDL	BDL	BDL
10	1.629 ^ef	31.93 ^gh	3.330 ^j	12.92 ^abcde	BDL	BDL	BDL	BDL	BDL	BDL
11	1.693 ^f	84.60 ^w	7.904 ^s	18.77 ^fghi	BDL	BDL	BDL	BDL	BDL	BDL
12	2.825 ^p	53.86 ^r	7.042 ^q	40.43 ^k	BDL	BDL	BDL	BDL	BDL	BDL
13	2.290 ^k	51.47 ^q	7.127 ^q	30.81 ^j	BDL	BDL	BDL	BDL	BDL	BDL
14	1.583 ^de	77.89 ^v	7.137 ^q	17.22 ^efgh	BDL	BDL	BDL	BDL	BDL	BDL
15	1.497 ^cd	63.65 ^t	7.788 ^r	17.97 ^fghi	BDL	BDL	BDL	BDL	BDL	BDL
16	1.677 ^f	45.90 ⁿ	3.125 ⁱ	17.02 ^efgh	BDL	BDL	BDL	BDL	BDL	BDL
17	1.855 ^g	29.33 ^f	2.594 ^g	15.48 ^cdef	BDL	BDL	BDL	BDL	BDL	BDL
18	1.406 ^bc	31.47 ^g	3.600 ^k	18.17 ^fghi	BDL	BDL	BDL	BDL	BDL	BDL
19	2.002 ⁱ	48.09 ^o	2.350 ^f	20.70 ^ghi	BDL	BDL	BDL	BDL	BDL	BDL
20	2.927 ^q	42.81 ^l	2.071 ^d	29.08 ^j	BDL	BDL	BDL	BDL	BDL	BDL
21	2.288 ^k	14.37 ^b	0.998 ^a	21.51 ^hi	BDL	BDL	BDL	BDL	BDL	BDL
22	2.416 ^lm	28.31 ^e	2.550 ^g	31.54 ^j	BDL	BDL	BDL	BDL	BDL	BDL
23	1.683 ^f	45.89 ⁿ	2.916 ^h	17.73 ^efghi	BDL	BDL	BDL	BDL	BDL	BDL
24	2.162 ^j	40.70 ^k	2.508 ^g	27.56 ^j	BDL	BDL	BDL	BDL	BDL	BDL
25	1.634 ^ef	26.91 ^d	1.685 ^c	20.98 ^hi	BDL	BDL	BDL	BDL	BDL	BDL
26	1.716 ^f	32.11 ^h	2.247 ^e	18.46 ^fghi	BDL	BDL	BDL	BDL	BDL	BDL
27	1.685 ^f	29.46 ^f	2.199 ^e	18.42 ^fghi	BDL	BDL	BDL	BDL	BDL	BDL
28	1.395 ^b	18.23 ^c	1.374 ^b	15.12 ^bcdef	BDL	BDL	BDL	BDL	BDL	BDL
29	1.922 ^ghi	12.75 ^a	1.092 ^a	22.53 ⁱ	BDL	BDL	BDL	BDL	BDL	BDL
30	1.960 ^hi	35.72 ^j	18.300 ^u	13.87 ^abcdef	BDL	BDL	BDL	BDL	BDL	BDL
Contrast
Cereal-free foods	2.185 ^b	46.91 ^b	5.782 ^b	19.91 ^b	-	-	-	-	-	-
Cereal foods	1.681 ^a	39.89 ^a	4.272 ^a	17.41 ^a	-	-	-	-	-	-
MRL ³	0.720	3.60	0.580	7.20	-	-	-	-	-	-
MLL ⁴	2.800	68.18	17.000	22.70	-	-	-	-	-	-

¹ Means with at least one same letter in the superscripts (a, b, c, …) did not differ statistically at P = 0.05 (for all columns separately); ² the main ingredients of analyzed dog foods and division into cereal and cereal-free foods are shown in Table 5; ³ MRL, minimum recommended level [3]; ⁴ MLL, maximum legal limit [3]; ⁵ BDL—below detection limit.