Table 3.
Branched-chain amino acid requirement estimates for lactating sows
| Item | NRC (2012) | Brazil (2017)1 | PIC (2020) 2 | Danish Nutrient Standards (2020)3 |
|---|---|---|---|---|
| SID4 | ||||
| Lys, % | 0.72–0.87 | 1.04–1.10 | 1.05 | 1.00 |
| Val:Lys | 0.85 | 0.83 | 0.64 | 0.69–0.74 |
| Ile:Lys | 0.56 | 0.60 | 0.56 | 0.56–0.60 |
| Leu:Lys | 1.11–1.15 | 1.15 | 1.14 | 1.02–1.08 |
| SID intake, g/d | ||||
| Lys | 42.2–52.6 | 64.5–68.9 | 50.0–62.0 | – |
| Val | 35.9–44.9 | 53.5–57.2 | 32.0–39.7 | – |
| Ile | 23.4–29.4 | 38.7–41.4 | 28.0–34.7 | – |
| Leu | 47.1–60.3 | 74.2–79.2 | 57.0–70.7 | – |
Brazilian Tables for Poultry and Swine (2017).
PIC Nutrition guidelines (2020).
Danish nutrient standards (2020).
SID = standardized ileal digestible.