Table 2.
Serum macrominerals composition
| Item | Dietary treatment1 | SEM | P-value | |
|---|---|---|---|---|
| CON | ACI | |||
| No. of sows | 11 | 11 | ||
| Serum, day 1 of lactation | ||||
| Na, mEq/L | 143.64 | 145.36 | 0.90 | 0.191 |
| K, mEq/L | 4.78 | 4.87 | 0.14 | 0.653 |
| Total Ca, mg/dL | 9.23 | 9.71 | 0.15 | 0.031 |
| Mg, mg/Dl | 1.87 | 1.98 | 0.04 | 0.097 |
| P, mg/dL | 7.31 | 7.21 | 0.26 | 0.804 |
| Cl, mEq/L | 101.82 | 104.73 | 0.79 | 0.017 |
| Na/K ratio | 30.18 | 30.09 | 0.88 | 0.943 |
| Serum, day 18 of lactation | ||||
| Na, mEq/L | 141.64 | 141.00 | 0.52 | 0.401 |
| K, mEq/L | 5.42 | 5.25 | 0.11 | 0.300 |
| Total Ca, mg/dL | 9.74 | 10.14 | 0.10 | 0.012 |
| Mg, mg/dL | 2.21 | 2.40 | 0.07 | 0.087 |
| P, mg/dL | 6.45 | 6.18 | 0.20 | 0.361 |
| Cl, mEq/L | 103.09 | 102.82 | 0.65 | 0.769 |
| Na/K ratio | 26.18 | 27.00 | 0.60 | 0.348 |
1Dietary 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).