Journal article

Assessment of welfare of suckling lambs following intradermal injection of cetrimide as a non-surgical alternative to conventional mulesing

IG Colditz, JB Lloyd, DR Paull, C Lee, A Giraudo, C Pizzato, AD Fisher



OBJECTIVE: To assess in suckling lambs the impact of intradermal injection of cetrimide, a quaternary ammonium compound formulated to induce non-surgical mulesing, on some physiological and behavioural indicators of welfare. PROCEDURES: We allocated 32 suckling lambs (9-11 weeks old) to three groups: (1) control (n = 10), (2) conventional surgical mules (n = 11) and (3) non-surgical mules (n = 11). Non-surgical mulesing was induced by intradermal injection of 4% (w/w) cetrimide + 3% (w/w) polyvinylpyrrolidone in water. Lambs were run in pens of four together with their dams. Haematology, cortisol, beta-endorphin and haptoglobin levels, and rectal temperature were monitored at least daily for..

View full abstract

University of Melbourne Researchers


Funding Acknowledgements

This work was commissioned by Australian Wool Innovation and funded by Australian tax payers and woolgrowers through Australian Wool Innovation. The assistance of Rob Powell with mulesing and administration of intradermal treatments and the dedicated technical assistance of Matt Reed, Jim Lea, Dom Niemeyer, Sue Belson, Grant Uphill, Troy Kalinowski, Remi Climent and Francois Brard are gratefully acknowledged.