title: [Involvement of endorphins in the emotional behavior of pigs].
abstract: Social isolation and exposure to a new environment induce hyperactivity, vocalizations and ACTH release in weaned Piglets acutely submitted to this stress. These reactions are increased by pretreatment with morphine (0.5 and 1 mg/kg) and decreased by naloxone (1 mg/kg), suggesting that endogenous opiates modulate emotional behaviour in Pigs.
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000378:metabolism; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D004723:Endorphins / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000494:pharmacology; D012934:Social Isolation; D013315:Stress, Psychological; D013552:Swine / Q000502:physiology*
chemical_list: D004723:Endorphins; D009270:Naloxone; D009020:Morphine; D000324:Adrenocorticotropic Hormone
vernacular_title: Intervention des endorphines dans le comportement émotionnel du porc.