Table 3.
Dietary Phenylalanine requirement, in the presence of excess of Tyrosine, for adult cats at maintenance as recommended by AAFCO, FEDIAF, NRC, and estimated in the present study
| Units | AAFCO1 | FEDIAF2 | NRC3 AI4 |
NRC RA |
Present Study | |
|---|---|---|---|---|---|---|
| MR | CL | |||||
| g/100 g DM5 | 0.42 | 0.53/0.40 | 0.40 | 0.40 | 0.31 | 0.56 |
| g/Mcal ME | 1.05 | 1.33/1.00 | 1.00 | 1.00 | 0.76 | 1.33 |
| mg/kg BW | 34.03 | 62.74 | ||||
| (56.89)6 | ||||||
1Association of American Feed Control Officials Manual. 2023.
2European Pet Food Industry Federation (2023) Nutritional guidelines for complete and complementary pet food for cats and dogs. Values depend on maintenance energy requirements 75 kcal/kg0.67 or 100 kcal/kg0.67, respectively.
3Nutrient requirements of dogs and cats; National Research Council, 2006.
4AI = adequate intake, RA = Recommended allowance, MR = Minimal requirement, CL = upper 95% confidence limit.
5Values for g 100 g DM−1 are determined assuming a dietary energy density of 4,000 kcal ME kg−1.
6Values in parentheses represent NRC recommendation for Phe requirement for adult cats at maintenance converted from mg·kg−1 BW0.67 to mg·kg−1 BW using the average BW of cats in the present study.