Journal article
Prevalence of breech-strike in mulesed, clipped and unmulesed Merino hoggets in south-eastern Australia
JWA Larsen, LD Tyrell, N Anderson
Australian Veterinary Journal | Published : 2012
Abstract
Objective To compare the prevalence of breech flystrike ('breech-strike') on 12-20-month-old Merino hoggets that were mulesed, had breech and tail clips applied ('clipped') or were left unmulesed but treated strategically with long-acting insecticide. Design A cohort study on three farms in southern Victoria. Methods Three treatment groups were established at lamb marking on each farm. The unmulesed group was treated with dicyclanil when 12 months old in September or October ('early-season treatment'). The prevalence of breech-strike and key risk factors, including soiling of the breech with faeces ('dag') and urine ('stain'), and breech wrinkle, were compared between the groups. Results Ove..
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Awarded by Australian Wool Innovation Pty. Ltd.
Funding Acknowledgements
It is a pleasure to acknowledge the farm owners and managers who generously donated their time and facilities for this study; M & J Bunge, 'Kooringal'; P Preet, D Mackay & G Spencer, 'Larundel'; F & R Irving, 'Tramore'. We thank D Rees, L Warn & Dr N Rolls for their technical assistance, and Novartis Animal Health and Elanco Animal Health for the donation of products used in this study. This work was funded by Australian Wool Innovation Pty. Ltd. (Project WP301), which is funded by Australian woolgrowers and tax payers. Dr Leah Tyrell received a research scholarship from the University of Melbourne.