Fig. 2From: Implementation of an extended ZINB model in the study of low levels of natural gastrointestinal nematode infections in adult sheepPosterior distribution obtained from the extended ZINB model. Each colour represents a different chain. Both chains have a mean around 0.38 and no sample was recovered from either of the chains with a zero-inflation parameter equal to zero (minimum value recovered = 0.12)Back to article page