Evaluating carbohydrate sources for dogs

Eight adult dogs were housed in metabolic cages, and distributed into 8 × 8 Latin square experimental design, with eight diets and eight replicates per diet. The difference or substitution method was used to estimate ingredient digestibility. A reference diet was formulated based on nutritional requirements of dogs. For each test diet, 300 g/kg of the reference diet was replaced with the ingredient evaluated. All the diets were extruded.
 
Results are shown in the table below.
 

Total tract apparent nutrient digestibility
Ingredient
high oil maize
sorghum
millet broken rice maize germ wheat bran rice bran
Dry matter 0.893 0.905
0.859
0.905 0.654 0.593 0.550
Crude protein 0.884 0.884 0.803 0.753 0.656 0.682 0.729
Fat 0.855 0.786 0.821 0.668 0.482 0.538 0.852
Dietary fibre 0.503 0.741 0.668 0.744 0.232 0.209 0.129
Starch 0.986 0.987 0.991 0.992 0.955 0.896 0.904
Metabolizable energy (MJ/kg, as-fed basis)
14.4 13.1 13.5 13.1 9.1 9.0 12.0


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