Effect of temperament and prolonged transportation on endocrine and functional variables in young beef bulls

The purpose of this study was to evaluate the effect of prolonged transportation on adrenocorticotropic hormone (ACTH), cortisol, total and free triiodothyronine (T3, fT3) and thyroxine (T4, fT4) concentrations, and functional variables (heart rate (HR), respiratory rate (RR) and rectal temperature...

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Veröffentlicht in:	Veterinary record 2012-12, Vol.171 (25), p.644-644
Hauptverfasser:	Fazio, E., Medica, P., Cravana, C., Cavaleri, S., Ferlazzo, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adrenal glands Adrenocorticotropic Hormone - blood Animals beef bulls Behavior, Animal Body Temperature - physiology Cattle Cattle - physiology Heart Rate - physiology Hydrocortisone - blood Male Physiology Pituitary gland Respiratory Rate - physiology Rodents Stress Stress, Physiological - physiology Stress, Psychological - blood Stress, Psychological - physiopathology Studies Temperament - physiology Thyroxine - blood Time Factors Transport Transportation Triiodothyronine - blood
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Zusammenfassung:	The purpose of this study was to evaluate the effect of prolonged transportation on adrenocorticotropic hormone (ACTH), cortisol, total and free triiodothyronine (T3, fT3) and thyroxine (T4, fT4) concentrations, and functional variables (heart rate (HR), respiratory rate (RR) and rectal temperature (RT)) in calm and temperamental Limousin young beef bulls. Exit velocity measurement was used to classify bulls' temperament as calm (group I: consisted of eight slowest bulls) and temperamental (group II: consisted of five fastest bulls). Calm subjects showed an increase of ACTH (P
ISSN:	0042-4900 2042-7670
DOI:	10.1136/vr.100480