Table 5.
Concentrations of macro and trace elements in alpaca milk during four months postpartum, data are provided as median (1st quartile/3rd quartile), significant differences between the months are marked with different indices.
| Milk | Day 6–30 (n = 17) |
Day 31–60 (n = 16) |
Day 61–90 (n = 16) |
Day 91–120 (n = 12) |
|---|---|---|---|---|
| P [g/L] | 1.21 (1.00/1.42) | 1.15 (0.86/1.34) | 1.15 (0.98/1.45) | 1.11 (0.73/1.41) |
| Ca [g/L] | 1.40 (1.23/1.55)a | 1.33 (1.18/1.49)a | 1.24 (1.02/1.55)a,b | 1.11 (0.90/1.35)b |
| Mg [g/L] | 0.16 (0.14/0.22) | 0.15 (0.14/1.17) | 0.15 (0.14/0.16) | 0.13 (0.11/0.17) |
| Na [g/L] | 0.50 (0.27/1.29) | 0.42 (0.28/0.85) | 0.46 (0.31/1.00) | 0.52 (0.33/1.36) |
| K [g/L] | 0.84 (0.78/1.11)a | 0.96 (0.88/1.13)a,b | 1.16 (1.13/1.28)b | 0.98 (0.79/1.34)a,b |
| S [g/L] | 0.60 (0.47/0.93) | 0.50 (0.41/0.67) | 0.49 (0.45/0.65) | 0.54 (0.50/0.70) |
| Fe [mg/L] | 1.16 (0.88/1.69) | 1.59 (0.76/3.25) | 1.33 (0.81/2.01) | 1.08 (0.67/2.65) |
| Cu [mg/L] | 0.25 (0.15/0.56)a | 0.15 (0.13/0.17)b | 0.13 (0.14/0.16)b | 0.11 (0.08/0.14)b |
| Zn [mg/L] | 3.16 (2.71/3.74) | 3.07 (2.90/3.85) | 2.94 (2.59/3.37) | 3.19 (2.81/3.57) |
| Se [µg/L] | 31.0 (19.9/43.6)a | 20.2 (14.8/26.7)b | 14.5 (8.68/26.3) b | 18.0 (11.9/33.4)b |
| Sr [mg/L] | 0.77 (0.61/0.88)a | 0.70 (0.66/0.84)a | 0.61 (0.58/0.75)a,b | 0.56 (0.41/0.63)b |
| Mo [µg/L] | 6.50 (4.55/9.00)a | 4.50 (3.50/7.65)b | 2.80 (1.92/3.50)c | 4.60 (2.80/5.98)b |
| Ba [µg/L] | 514 (399/611) | 753 (493/923) | 641 (439/905) | 449 (349/602) |
| Al [µg/L] | 750 (204/950) | 918 (698/1947) | 1114 (560/1635) | 607 (468/707) |
| Co [µg/L] | 0.75 (0.40/1.15) | 0.50 (0.30/1.10) | 0.65 (0.40/1.10) | 0.50 (0.30/0.70) |
| Ni [µg/L] | 4.65 (3.58/5.92) | 5.40 (4.50/8.70) | 5.85 (4.65/8.00) | 4.55 (3.65/6.05) |
| Tl [µg/L] | 0.13 (0.11/0.17) | 0.11 (0.08/0.17) | 0.10 (0.08/0.16) | 0.11 (0.08/0.14) |
| Pb [µg/L] | 5.40 (2.02/7.85)a | 9.80 (4.82/19.3)b | 4.98 (3.24/10.1)a | 3.00 (2.58/4.13)c |
| U [µg/L] | 0.12 (0.09/0.14) | 0.17 (0.14/0.19) | 0.15 (0.13/0.19) | 0.14 (0.12/0.20) |
| Cd [µg/L] | 0.25 (0.08/0.40) | 0.31 (0.12/0.44) | 0.25 (0.13/0.39) | 0.24 (0.18/0.32) |
| Sn [µg/L] | 1.45 (0.78/3.45)a | 3.10 (1.80/5.44)b | 3.10 (1.88/3.70)b | 3.40 (2.78/4.78)b |
| As [µg/L] | 1.65 (0.98/1.90)a | 1.80 (1.10/3.20)a | 0.85 (0.70/2.05)b | 0.60 (0.50/0.88)b |
| Mn [µg/L] | 82.1 (46.2/118)a | 131 (73.8/305)b | 129 (77.6/257)b | 76.5 (59.8/104)a |
| B [µg/L] | 168 (147/200) | 144 (129/180) | 155 (122/185) | 142 (135/167) |
| Li [µg/L] | 12.8 (7.05/36.2) | 15.6 (6.15/27.9) | 11.9 (6.60/12.95) | 12.60 (9.70/13.2) |