Type

Journal Article

Authors

Bernadette Earley
Sean Doyle
Mark McGee
Aran O'Loughlin

Subjects

Veterinary

Topics
stress characterisation beef calves future plasma biomarker weaning stress blood

Biomarker responses to weaning stress in beef calves. (2013)

Abstract The study objective was to investigate the physiological effects of weaning on beef calves and identify a panel of blood-based welfare biomarkers. On the day (d) of weaning (d 0), 16 spring-born, single-suckled, beef bull calves that previously grazed with their dams at pasture, were assigned to one of two treatments: (1) control (n = 8), calves were loose-housed with their dam, (2) weaned (n = 8), calves were abruptly separated from their dam and loose-housed. Jugular blood was collected on d -4, 0, 1, 2, 3, 7, and 14 relative to weaning (d 0) and assayed for inflammatory and steroid variables. Total leukocyte counts were measured in whole blood. It is concluded that neutrophil number is a robust biomarker of stress and that plasma CXCL8 is a sensitive indicator of stress in weaned and control calves. In future studies, these two biomarkers should be central to the characterisation of stress responses.
Collections Ireland -> Maynooth University -> PubMed

Full list of authors on original publication

Bernadette Earley, Sean Doyle, Mark McGee, Aran O'Loughlin

Experts in our system

1
Bernadette Earley
Teagasc
Total Publications: 120
 
2
Sean Doyle
Maynooth University
Total Publications: 130
 
3
Mark McGee
Teagasc
Total Publications: 81