Table 8.
Post-absorptive plasma amino acid concentrations in gestating primiparous sows at farrowing and at weaning 1.
| Dietary Treatment 1 | SEM 2 | p-Value 3 | ||||||
|---|---|---|---|---|---|---|---|---|
| Item | 0.29 | 0.92 | ||||||
| Farrow | Wean | Farrow | Wean | Diet | Stage | Diet × Stage | ||
| Indispensable AA, μM | ||||||||
| Arg | 166.0 | 103.5 | 169.8 | 100.0 | 10.45 | 0.988 | <0.001 | 0.725 |
| His | 111.6 | 92.10 | 113.4 | 87.80 | 6.75 | 0.867 | <0.001 | 0.628 |
| Ile | 128.8 | 139.4 | 152.7 | 153.5 | 9.70 | 0.049 | 0.583 | 0.633 |
| Leu | 169.6 | 196.6 | 206.6 | 211.3 | 11.52 | 0.042 | 0.161 | 0.321 |
| Lys | 192.6 | 134.9 | 185.7 | 133.7 | 11.51 | 0.730 | <0.001 | 0.806 |
| Met | 45.01 | 34.34 | 54.02 | 46.18 | 7.53 | 0.169 | 0.242 | 0.856 |
| Phe | 125.5 | 96.50 | 136.3 | 111.1 | 8.89 | 0.144 | 0.007 | 0.842 |
| Thr | 334.8 | 137.2 | 312.6 | 133.6 | 21.20 | 0.534 | <0.001 | 0.676 |
| Trp | 75.51 | 75.53 | 83.38 | 95.25 | 10.21 | 0.125 | 0.611 | 0.612 |
| Val | 284.1 | 237.6 | 364.6 | 247.6 | 18.36 | 0.018 | <0.001 | 0.075 |
| Total | 1609 | 1248 | 1779 | 1320 | 86.74 | 0.166 | <0.001 | 0.588 |
| Dispensable AA, μM | ||||||||
| Ala | 599.2 | 243.5 | 567.8 | 234.7 | 25.70 | 0.455 | <0.001 | 0.655 |
| Asn | 75.43 | 54.37 | 83.59 | 58.01 | 5.11 | 0.210 | <0.001 | 0.691 |
| Asp | 14.17 | 9.43 | 14.38 | 17.94 | 3.28 | 0.183 | 0.864 | 0.230 |
| Gln | 3835 | 2339 | 3573 | 2090 | 243.0 | 0.334 | <0.001 | 0.978 |
| Glu | 144.1 | 96.6 | 146.5 | 93.7 | 6.17 | 0.976 | <0.001 | 0.624 |
| Gly | 736 | 674 | 726 | 601 | 38.22 | 0.313 | 0.016 | 0.390 |
| Pro | 246.7 | 161.6 | 263.7 | 163.3 | 11.21 | 0.397 | <0.001 | 0.515 |
| Ser | 124.7 | 123.9 | 179.5 | 122.9 | 13.55 | 0.071 | 0.035 | 0.040 |
| Tyr | 107.9 | 66.98 | 122.7 | 90.8 | 9.54 | 0.039 | 0.001 | 0.663 |
| Total 4 | 6015 | 3825 | 5851 | 3543 | 274.4 | 0.446 | <0.001 | 0.823 |
1 Dietary treatments were as follows: 0.29% and 0.92% standardized ileal digestible sulfur AAs, which correspond to 63 or 200% of the estimated SID SAAs requirement for primiparous sows in late gestation (requirements from d 90 to d 114 of gestation, 145 kg of body weight at breeding, expected litter size of 15, and piglet birth weight of 1.35 kg). A standard lactation diet was provided to all primiparous sows from farrowing through to weaning (23 ± 5 days of lactation); blood samples were collected at the post-absorptive stage, 15 h after the last meal. 2 Maximum value for the standard error of the means. 3 p-values for the two-way ANOVA procedure between dietary treatments, stage (farrowing and weaning), and the interaction. 4 Cys was included in the total.