Table 4.
Colostrum and milk compositions in lactating sows1
|
Item |
Dietary treatment2 | SEM | P-value | |
|---|---|---|---|---|
| CON | ACI | |||
| No. of sows | 11 | 11 | ||
| Colostrum | ||||
| Fat, % | 7.28 | 7.09 | 0.60 | 0.837 |
| Protein, % | 8.70 | 8.15 | 0.79 | 0.631 |
| Solids-nonfat, % | 15.33 | 15.07 | 0.71 | 0.807 |
| Lactose, % | 4.91 | 5.04 | 0.16 | 0.556 |
| Ca, mg/dL | 66.12 | 79.34 | 4.12 | 0.047 |
| Milk, day 9 of lactation | ||||
| Fat, % | 7.05 | 6.92 | 0.42 | 0.827 |
| Protein, % | 4.90 | 4.80 | 0.11 | 0.512 |
| Solids-nonfat, % | 13.28 | 13.11 | 0.33 | 0.736 |
| Lactose, % | 6.50 | 6.44 | 0.15 | 0.782 |
| Milk, day 18 of lactation | ||||
| Fat, % | 6.85 | 6.18 | 0.32 | 0.157 |
| Protein, % | 4.61 | 4.77 | 0.12 | 0.323 |
| Solids-nonfat, % | 12.96 | 13.07 | 0.11 | 0.505 |
| Lactose, % | 6.63 | 6.57 | 0.05 | 0.473 |
| Ca, mg/dL | 156.26 | 158.05 | 4.42 | 0.783 |
1Wet weight basis.
2Dietary cation-anion difference (DCAD) was expressed as milliequivalents (mEq) (Na + K – Cl) per kilogram diet. Two dietary treatments were CON (control diets were corn-soybean meal based with a calculated DCAD of 170 and 226 mEq/kg during late gestation and lactation, respectively) or ACI (acidogenic diets had a DCAD 100 mEq/kg lower than the control diets).