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How is animal digestibility determined?

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The following equation is used to determine the apparent digestibility of a nutrient: digestibility (%) = 100 – (100 x (marker concentration in feedstuff / marker concentration in feces) x (nutrient concentration in feces / nutrient concentration in feedstuff)).


What is digestibility of animal feed?

What is digestibility in animal nutrition? Digestibility is the factor that expresses the potential of an ingredient to be digested, absorbed and processed by the animal's system, whether in terms of nutrients or of energy.

How is digestible energy measured?

For example, Digestible Energy (DE), the value utilized in equine nutrition, is calculated by subtracting the gross energy in the feces from the gross energy consumed by the animal. In other words, the Digestible Energy is the amount of energy an animal consumes minus what is lost in the manure.

What are the factors which affect digestibility of feed?

Factors Affecting Digestibility of FeedSpecies. ... Age. ... Work. ... Individuality. ... Level of feeding. ... Sudden change. ... Pathological and stressed animal. ... Indigenous secretions into feces.

What is digestibility method in feed evaluation?

The most accurate way to evaluate the nutritional value of any feedstuff is the standard measure of digestibility. It involves post ruminal collections through duodenal or abomasal cannulation of the animal (Nocek, 1988).

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