Pessimism and fearfulness in dairy calves.

ABSTRACT: Animals that experience situations likely to induce negative emotions show changes in judgment associated with pessimism. Few studies have focused on whether animals express stable differences in pessimism and whether these differences are related to personality traits. The first aim of this study was to explore if dairy calves are consistent over time in making judgments under ambiguous situations. Our second aim was to determine whether individual differences in judgment bias are related to conventional personality traits assessed using four standardized tests (Open field, Novel object, Human reactivity and Social motivation test). We subjected animals to two sessions of judgment bias and personality trait tests at 25 and 50 d of age. Individual differences in judgment bias were consiste

SUBMITTER: Lecorps B 

PROVIDER: S-EPMC5780456 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature