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Open AccessArticle

Clove Oil Delays Rather Than Prevents Scur/Horn Growth in Dairy Cattle

AgResearch Ltd., Ruakura Research Centre, Hamilton 3214, New Zealand
New Zealand Veterinary Pathology/IDEXX Laboratories, 20 Maui Street, Hamilton 3200, New Zealand
Author to whom correspondence should be addressed.
Vet. Sci. 2019, 6(4), 102;
Received: 10 June 2019 / Revised: 12 November 2019 / Accepted: 11 December 2019 / Published: 13 December 2019
(This article belongs to the Section Anatomy, Histology and Pathology)
The objective of this study was to evaluate if administration of clove oil prevents scur/horn growth in dairy cattle long term. At approximately 4 days of age, calves had one of four treatments assigned to each horn bud: (1) clove oil administered subcutaneously under the horn bud (CLOV, n = 132); (2) cautery disbudded and the horn bud removed (BUDOFF, n = 126); (3) cautery disbudded and the horn bud tissue left intact (BUDON, n = 129); (4) a liquid nitrogen filled probe applied to the horn bud area (CRYO, n = 131). At approximately 16 months of age, all cattle were checked for scur or horn development. A sub-set of scurs/horns from the CLOV cattle were removed to evaluate tissue and structural development. In total, 5% of CLOV buds developed into horns and 63% into scurs; 10% of the scurs looked like normally developed horns but they were not attached to the skull. Cautery disbudding prevented scur and horn development in cattle when the horn bud tissue was removed, but some scur growth was observed in the BUDON treatment. CRYO was 100% ineffective at preventing scur/horn growth. Injecting clove oil under the horn bud appeared to delay horn development, but not prevent it, when administered to 4 day old dairy calves. View Full-Text
Keywords: calf; cautery; disbudding; cryoablation; horns; scurs calf; cautery; disbudding; cryoablation; horns; scurs
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Sutherland, M.; Julian, A.; Huddart, F. Clove Oil Delays Rather Than Prevents Scur/Horn Growth in Dairy Cattle. Vet. Sci. 2019, 6, 102.

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