Day-old chicks categorised on latency to peck, exhibit a stable fear pattern until 15 days of age
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Day-old chicks of both sexes were individually categorised on the latency to peck pebbles and termed as high latency (HL), moderate latency (ML) or low latency (LL). Anxiolytic doses of diazepam diminished the latency only in the HL category, suggesting that i... ...
