Table 2.
Changes in nutrient composition of milk during the lactation period of Tibetan goats
| Group | Fat (%) | Protein (%) | SNF (%) | Solids (%) | Lactose (%) | Low lactose (%) | Galactose (%) | Casein (%) |
|---|---|---|---|---|---|---|---|---|
| D0 | 8.93 ± 0.28a | 11.99 ± 0.26a | 17.36 ± 0.35a | 24.80 ± 0.52a | 4.40 ± 0.09ab | 3.30 ± 0.18a | 1.32 ± 0.08a | 8.68 ± 0.28a |
| D7 | 7.50 ± 0.09b | 9.52 ± 0.09b | 14.95 ± 0.19b | 19.64 ± 0.66b | 3.99 ± 0.08b | 2.58 ± 0.10b | 1.29 ± 0.10a | 6.36 ± 0.37b |
| D14 | 6.70 ± 0.13b | 5.91 ± 0.18c | 12.14 ± 0.27c | 18.16 ± 0.94bc | 4.16 ± 0.34ab | 2.46 ± 0.17b | 1.01 ± 0.18a | 4.31 ± 0.25c |
| D28 | 5.28 ± 0.09c | 5.37 ± 0.15c | 12.18 ± 0.12c | 17.39 ± 0.38c | 4.14 ± 0.27ab | 2.15 ± 0.28b | 0.26 ± 0.16b | 3.56 ± 0.17c |
| D56 | 5.70 ± 0.09c | 5.21 ± 0.15c | 11.16 ± 0.24c | 17.00 ± 0.24c | 4.86 ± 0.17a | 2.46 ± 0.07b | 0.29 ± 0.05b | 3.93 ± 0.12c |
| SEM | 0.22 | 0.44 | 0.40 | 0.52 | 0.10 | 0.08 | 0.08 | 0.32 |
| P value | < 0.001 | < 0.001 | < 0.001 | < 0.001 | 0.007 | < 0.001 | < 0.001 | < 0.001 |
The data in the table represents the percentage of various nutritional components in the milk. Data are presented as the mean ± SEM. Different letters in the same column indicate significant differences between the two groups (P < 0.05), and the same letters indicate that the differences between the two groups are not significant (P > 0.05)