“…A single communication studied the effect of azaperone (D 1 and D 2 receptor antagonist), pimozide (D 2 antagonist) or bromocryptine (D 2 agonist) in three male goats before, during and after a 2-h motorised transportation (Sanhouri et al 1993). The three agents, either alone or when combined with transport, did not affect glucose concentration, probably indicating that D receptors have no direct involvement with catecholamine-induced glucose production.…”