What does a collar indicate in the show standards for Abyssinian cavies?

In the context of show standards for Abyssinian cavies, a collar is considered an undesirable trait. This is because the breed standard specifies that Abyssinians should have a specific coat pattern and texture, including rosettes that are evenly distributed across their body. The presence of a collar, which is a distinct band of color or fur that runs around the neck, detracts from the ideal appearance outlined in the standards. Judges look for cavies that conform closely to breed descriptions, and any deviation—including the presence of a collar—can negatively impact the cavy's evaluation in a show setting. Thus, a collar is viewed as a fault rather than a desirable or enhancing feature.