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Pet Food News
on March 17, 2010

Study finds digestibility of carbohydrate sources for dogs

A digestibility study conducted by São Paulo State University scientists determined the nutritional value of various ingredients for dog foods.

digestibility study  conducted by  São Paulo State University  scientists determined the nutritional value of various ingredients for dog foods. 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.

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

Chart courtesy of  All About Feed  

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