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Palatability is defined as the subjective pleasure associated with eating a given food over another.

We can provide two different means of assessing palatability. The first, the two pan test, is the industry standard, in which subjects are given a choice of eating two different foods, and the preferred food is the most palatable. The second, the cognitive palatability assessment protocol (CPAP), was developed as an alternative by CanCog to provide a means of testing palatability that require smaller quantities of food. The CPAP is ideal for establishing preference of:

  • satiety inducing diets
  • small quantities of test food (e.g., tablets)

The figure above demonstrates the preference for lamb based food over time in dogs tested on the CPAP.

In contrast to the previous figure, preference ratios established during two pan testing demonstrate high individual variability. For example, Morpheus showed a large preference for the lamb-based product during CPAP testing, but his preference ratios were more sporadic during two-pan testing. On the other hand, Apollo showed high levels of preference for the lamb based diet during CPAP testing, but almost no preference according to two-pan testing.