Hair cortisol levels were determined in 85 multiparous lactating Italian Friesian dairy cows. The animals were clinically healthy and had not undergone social group changes within the past 3 months. Hair cortisol data were stratified into 14 frequency classes. Data showed a strongly positive asymmetric distribution. In 50% of the animals, cortisol levels were below 3.29 pg/mg while in 33% hair cortisol levels were concentrated in the hair cortisol class 2-2.99 pg/mg. This range of values was suggested as the representative class of hair cortisol levels in healthy animals. Hair cortisol analysis could be a valid, interesting and useful tool for monitoring HPA activity in healthy dairy cows.
Peric T., Meloni T., Montillo M., Faustini M., Comin A., Pantaleo S., et al. (2012). Individual hair cortisol as a tool for monitoring HPA activity in healthy dairy cows.. CASTELLANA GROTTE : Società Italiana di Riproduzione Animale.
Individual hair cortisol as a tool for monitoring HPA activity in healthy dairy cows.
PERIC, TANJA;MONTILLO, MARTA;
2012
Abstract
Hair cortisol levels were determined in 85 multiparous lactating Italian Friesian dairy cows. The animals were clinically healthy and had not undergone social group changes within the past 3 months. Hair cortisol data were stratified into 14 frequency classes. Data showed a strongly positive asymmetric distribution. In 50% of the animals, cortisol levels were below 3.29 pg/mg while in 33% hair cortisol levels were concentrated in the hair cortisol class 2-2.99 pg/mg. This range of values was suggested as the representative class of hair cortisol levels in healthy animals. Hair cortisol analysis could be a valid, interesting and useful tool for monitoring HPA activity in healthy dairy cows.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.