Table 3 Apparent ileal, total tract, and standardized digestibilities of amino acids in adult dogs, cats, and pigs, %
From: Amino acid nutrition and metabolism in domestic cats and dogs
Nutrients | Adult dogsa | Apparent digestibility (total tract) by adult catsb | Pigsc | ||||
|---|---|---|---|---|---|---|---|
Apparent digestibility | Standardized ileal digestibility | Hair removed | Hair included | Apparent ileal digestibility | Standardized ileal digestibility | ||
Ileal | Total tract (fecal) | ||||||
Dry matter | 75.1 | 81.2 | – | 80.1 | 72.0 | – | – |
Organic matter | 79.4 | 85.3 | – | – | – | – | – |
Crude protein | 76.2 | 81.9 | 81.4 | 82.4 | 73.4 | 80.7 | 87.8 |
Lipids | 96.5 | 92.4 | – | 95.3 | 93.4 | – | – |
Carbohydrates | 88.9 | 95.5 | – | – | – | – | – |
Ala | 77.7 | 81.6 | 80.8 | 86.8 | 78.6 | 78.9 | 85.9 |
Arg | 87.3 | 91.7 | 89.6 | 91.4 | 85.3 | 91.0 | 94.9 |
Asp + Asn | 67.0 | 82.0 | 71.1 | 82.1 | 70.7 | 82.8 | 88.0 |
Cys | 56.5 | 75.3 | – | 75.4 | 42.2 | 79.9 | 87.6 |
Glu + Gln | 81.6 | 87.1 | 84.3 | 85.5 | 76.9 | 87.1 | 90.8 |
Gly | 73.1 | 83.7 | 76.7 | 90.0 | 82.9 | 74.3 | 89.1 |
His | 61.4 | 78.7 | 66.1 | – | – | 87.5 | 91.3 |
Ile | 77.7 | 80.6 | 81.6 | – | – | 81.9 | 87.5 |
Leu | 79.4 | 84.9 | 82.3 | 85.1 | 76.1 | 85.0 | 89.1 |
Lys | 76.8 | 81.6 | 80.0 | – | – | 83.8 | 88.9 |
Met | 82.6 | 83.8 | 85.1 | – | – | 86.4 | 90.1 |
Phe | 80.3 | 84.6 | 84.7 | – | – | 85.2 | 89.4 |
Pro | 78.8 | 88.2 | 82.6 | – | – | 80.5 | 104.2 |
Ser | 69.0 | 82.6 | 78.1 | 84.9 | 72.9 | 84.7 | 90.6 |
Thr | 62.0 | 79.0 | 75.1 | 83.5 | 72.5 | 78.5 | 86.2 |
Tyr | 77.2 | 82.8 | 82.5 | – | – | 85.1 | 90.5 |
Val | 72.3 | 79.6 | 76.9 | – | – | 79.9 | 86.0 |
AA nitrogen | 76.7 | 84.6 | 80.2 | 85.7 | 76.5 | 83.1 | 90.0 |