Cortisol concentrations
were elevated (P ,0.06) in SHORT piglets 30 and 60 min
after castration compared with CON piglets (Figure 1). Cortisol
concentrations were elevated (P ,0.05) in LONG piglets
30, 60, 120 and 180 min after castration compared with
CON piglets and greater (P ,0.05) at 120 min after castration
compared with CAS piglets (Figure 1). At no time point
was the cortisol response to castration with either short- or
long-acting topical anesthetic reduced (P .0.05) compared
with piglets castrated without an anesthetic.