The digestibility of pet foods is determined in feeding studies and, for a specific nutrient, is calculated from the daily amount consumed minus the amount excreted in faeces. This figure is divided by the total consumed to give a coefficient or percentage. 28 февр. 2011 г.
How is feed digestibility measured?
A measure of the proportion of a feed that is digestible. The digestibility of a nutrient is often measured as the difference between the amount of nutrient ingested minus the amount of nutrient excreted in the feces, expressed as a percentage of the nutrient ingested: 100 x (intake - excreted)/intake.
What is the digestibility of dog food?
The article further states, “As a rule of thumb, dry dog foods with digestibility values of 75 percent or less will be of very poor quality, those with values between 75 and 82 percent are classified as moderate in quality, and foods with digestibility values that are higher than 82 percent are of high quality.
Which dog food has higher digestibility?
As a protein source in dog food, fish meal had the highest values on almost all quality measures, including digestibility and essential amino acid content.
What determines digestibility?
Carbohydrates: The nature and level of dietary carbohydrates affect the digestibility of all nutrients present in the diet. High crude fibre content of mixed diets decreases their digestibility. The higher the percentage of crude fibre in a ration, the lower is the digestibility of dry matter and all other nutrients.
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