Table 4 Comparison of nutrient concentration per 1000 kcal in diets for cats with or without supplementation

Crude protein (g)

50.00

83.30

97.66 ± 57.37

142.52 ± 41.41

0.0605

Ether extract (g)

22.50

22.50

34.64 ± 23.67

33.56 ± 15.03

0.9050

Crude fiber (g)

–

–

5.81 ± 4.51

3.36 ± 3.07

0.4203

Ash (g)

–

–

4.56 ± 2.03

6.20 ± 1.33

0.0114

Calcium (g)

0.72

1.97

0.70 ± 0.70

2.26 ± 1.22

0.0011

Phosphorus (g)

0.64

1.67

1.29 ± 0.39

1.33 ± 0.51

0.6827

Ca:P¹ ratio

–

1.00

0.50 ± 0.38

2.26 ± 2.19

0.0002

Potassium (g)

1.30

2.00

1.00 ± 0.52

1.07 ± 0.36

0.7207

Magnesium (g)

0.10

0.13

0.27 ± 0.11

0.23 ± 0.07

0.2521

Sodium (g)

0.17

0.25

0.46 ± 0.36

0.78 ± 0.41

0.0458

Copper (mg)

1.20

1.67

7.23 ± 8.21

15.53 ± 12.88

0.0613

Iron (mg)

20.00

26.70

10.19 ± 3.47

15.51 ± 5.55

0.0095

Manganese (mg)

1.20

1.67

3.63 ± 4.98

1.65 ± 3.14

0.3042

Selenium (μg)

75.00

100.00

20.70 ± 62.10^a

0.00 ± 0.00^a

0.4000

Zinc (mg)

18.50

25.00

10.27 ± 5.52

19.51 ± 8.19

0.0037