Effects of short-term restraint stress on plasma concentrations of catecholamines, beta-endorphin, and cortisol in gilts.

摘要: The effects of short-term restraint stress, by means snaring, on plasma concentrations catecholamines, beta-endorphin, and cortisol were studied in 6 gilts. A catheter was inserted into the jugular vein, 2 blood samples collected before onset stress. Thereafter, a hog snare applied, at 0.5, 2, 3.5 minutes after start snaring. Plasma epinephrine norepinephrine increased (P < 0.001) within 0.5 minute decreased thereafter. concentration beta-endorphin 0.05) restraint, whereas that restraint. Taken together, such as snaring may increase pigs.