Fecha/hora: 01/06/2024 23:56:26

Biblioteca(s): 	INIA Tacuarembó.	
Tipo de la producción científica: 	Artículos en Revistas Indexadas Internacionales	
Circulación/Nivel: 	Internacional - --	
Fecha corriente: 	23/05/2018	
Fecha de la última actualización: 	23/03/2023	
Autoria: 	CANOZZI, M.E.A.; MEDEROS, A.; TURNER, S.; MANTECA, X.; MCMANNUS, C.; MENEGASSI, S.R.; BARCELLOS, J.O.	
Afiliación: 	MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; AMERICA ESTHER MEDEROS SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SIMON TURNER, Animal and Veterinary Sciences Group, Scotland’s Rural College (SRUC), Edinburgh, UK.; XAVIER MANTECA, Department of Animal and Food Science, School of Veterinary Science, Universitat Autònoma de Barcelona, Spain.; CONCEPTA MCMANNUS, Institute of Biological Sciences, University of Brasilia, Brazil.; SILVIO RENATO MENEGASSI, Centre for Research on Production Systems and Beef Cattle Supply Chain (NESPro/UFRGS), Department of Animal Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.; JULIO OTÁVIO BARCELLOS, Centre for Research on Production Systems and Beef Cattle Supply Chain (NESPro/UFRGS), Department of Animal Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.	
Título: 	Dehorning and welfare indicators in beef cattle: A meta-analysis.	
Complemento del título: 	Review.	
Año de publicación: 	2019	
Fuente/Imprenta: 	Animal Production Science, 2019, Volume 59, Issue 5, p. 801-814. doi: https://doi.org/10.1071/AN17752	
DOI: 	10.1071/AN17752	
Idioma: 	Inglés	
Notas: 	History Article: Received 27 January 2017 // accepted 11 April 2018 // published online 30 May 2018. -- Corresponding author:  Barcellos, J.O.J.; Centre for Research on Production Systems and Beef Cattle Supply Chain (NESPro/UFRGS), Department of Animal Science, Federal University of Rio Grande Do sul, Porto Alegre, Brazil; email:julio.barcellos@ufrgs.br  --	
Contenido: 	Dehorning is a common practice in cattle farming. Researchers suggest that pain during dehorning can be mitigated, although there is no conclusive evidence about the best technique and the best manner of pain relief. A systematic review-meta-analysis was performed to clarify the effect of dehorning on welfare indicators (cortisol concentration or average daily gain [ADG] or vocalisation) in beef cattle up to 12 months of age. Five electronic databases were systematically searched, as well as conference proceedings and experts were contacted electronically. Pre-defined protocols were applied during all steps of the systematic review process. A random effect meta-analysis was conducted for each indicator separately with the mean of the control and treated groups. Four publications reporting 7 studies and 69 trials were included in the MA involving 287 cattle. Heterogeneity between studies was observed for cortisol (I2 = 50.5%), ADG (I2 = 70.5%), and vocalisation (I2 = 91.9%). When comparing the non-dehorned group with amputation dehorning, the cortisol concentration was lower 30 min (P < 0.0001) and 120 min (P = 0.023) after procedure (0.767 nmol/L and 0.680 nmol/L, respectively). Local anaesthesia did not show a reduction in cortisol concentration at 30 min after dehorning by amputation. Non-dehorned animals had a tendency to decrease the number of vocalisation (P = 0.081; MD = 0.929) compared with the group dehorned by amputation. These results suggest that dehorning is a painful experience and that local anaesthesia did not alleviate short-term pain following dehorning. Further investigation into pain relief is required to improve confident decision making under practical conditions.  © 2019 CSIRO.	
Palabras-Clave: 	ANIMAL ANALGESICS; ANIMAL PAIN; ANIMAL WELFARE; BEEF CATTLE; CATTLE.	
Thesagro: 	BIENESTAR ANIMAL.	
Categoría del tema: 	L01 Ganadería	
Registro original: 	INIA Tacuarembó (TBO)	
Ejemplares: 	TBO - (102653-1) - PXI - AP - DD - ANIMAL PRODUCTION SCIENCE/2019 -  -  - DIS