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. 2021 Apr 22;8:667318. doi: 10.3389/fvets.2021.667318

Table 1.

Diets chemical composition (g/kg as is) and energy content (ME kcal/kg as is).

Nutritional characteristics CTR* GF1 GF2 CB RMSE
Crude Protein 240 363A 316B 317B 19.1
Total fat 100 185 193 194 51.5
Crude Fiber 38.0 23.0 23.7 24.7 9.41
Ash 99.0 65.0a 60.0b 60.3b 20.3
Metabolizable Energy* 3,200 3,999 3,990 3,997 140

*Chemical composition of control diet as reported in the label; GF1, grain-free diet 1; GF2, grain-free diet 2; CB, cereal based diet; along the row the capital letters indicate differences for P < 0.01 and P < 0.001; lowercase indicated differences for P < 0.05. RMSE, root mean square error. The statistical comparison was performed between GF1, GF2, and CB diets. *ME, calculated according to the predictive equation indicated by NRC 2006 (6).