Table 3.
Daily energy and vitamin D3 intake from kitten pet food, safe upper limit for vitamin D3, nutritional maximum for vitamin D, and the percentage difference for each cat.
Case 1 | Case 2 | Case 3 | Case 4 | Case 5 | Mean ±SD* | |
---|---|---|---|---|---|---|
Body weight (kg) | 0.85 | 2.35 | 3.20 | 4.00 | 3.10 | 2.70 ± 1.06 |
Daily energy requirements (kcal ME/day)a | 180 | 280 | 292 | 253 | 213 | 243 ± 41.3 |
Daily energy intake from KPF (% of daily energy requirements)b | 38 | 49 | 47 | 109 | 97 | 68 ± 28.9 |
vitamin D3 intake (IU/cat) from KPFc | 18,823 | 37,647 | 37,647 | 75,293 | 56,470 | 45,176 ± 19,196 |
SUL for vitamin D3 (IU/cat; NRC, 2006)d | 1,218 | 3,719 | 4,781 | 1,924 | 1,622 | 2,653 ± 1,365 |
Δ% between vitamin D3 intake (KPF) and SUL | 1,445 | 912 | 687 | 3,813 | 3,382 | – |
Nutritional maximum for vitamin D (IU/cat; FEDIAF, 2020)e | 1,355 | 2,092 | 2,187 | 1,899 | 1,601 | 1,827 ± 310 |
Δ% between vitamin D3 intake (KPF) and the FEDIAF nutritional maximum for vitamin D | 1,289 | 1,699 | 1,621 | 3,866 | 3,428 | – |
Data are expressed as the mean value ± SD; KPF, kitten pet food.
Daily metabolizable energy requirement calculated by the NRC equations proposed for growth kittens after weaning (cases 1, 2, and 3) and adult cats at maintenance (cases 4 and 5).
KPF energy density: 98 kcal/100 g as fed.
Based on measured KPF vitamin D3 content IU/100 g = 27,300.
SUL = safe upper limit (IU vitamin D3/cat).
Established on the nutritional maximum for vitamin D (D2 + D3) recommended by FEDIAF = 7,500 IU/1,000 kcal ME.