Table 5.
Supplemental effects of LPL in lactation diets on colostrum and milk composition of sow
| Item | CON | LPL1 | SEM | P-value |
|---|---|---|---|---|
| Colostrum, day 0 of lactation2 | ||||
| Dry matter, % | 24.1 | 24.8 | 1.5 | 0.712 |
| CP, % (DM basis) | 48.3 | 42.3 | 4.7 | 0.375 |
| EE, % (DM basis) | 39.2 | 38.8 | 4.9 | 0.964 |
| GE, kcal/kg (DM basis) | 5,943 | 5,966 | 231 | 0.870 |
| IgG, g/L | 24.90 | 29.17 | 4.70 | 0.521 |
| IgA, g/L | 19.04 | 19.81 | 5.55 | 0.751 |
| Milk, day 18 of lactation | ||||
| DM, % | 19.9 | 20.2 | 0.9 | 0.510 |
| CP, % (DM basis) | 26.3 | 26.6 | 0.5 | 0.704 |
| EE, % (DM basis) | 37.7 | 40.4 | 2.8 | 0.176 |
| GE, kcal/kg (DM basis) | 5,977 | 5.926 | 99 | 0.713 |
| IgG, g/L | 1.14 | 1.94 | 0.38 | 0.092 |
| IgA, g/L | 2.85 | 2.91 | 0.24 | 0.760 |
| Milk—colostrum | ||||
| DM, % | −4.2 | −4.5 | 1.5 | 0.885 |
| CP, % (DM basis) | −22.0 | −15.7 | 4.8 | 0.363 |
| EE, % (DM basis) | −1.4 | 1.7 | 6.3 | 0.735 |
| GE, kcal/kg (DM basis) | 25 | −47 | 302 | 0.832 |
| IgG, g/L | −23.76 | −27.23 | 5.70 | 0.651 |
| IgA, g/L | −16.10 | −16.82 | 10.44 | 0.962 |
1Sows were fed diets with 0.05% LPL during lactation.
2Colostrum samples were collected within 24 h after farrowing.