The effects of environmental enrichment on the physiology, behaviour, productivity and meat quality of pigs raised in a hot climate
Fábrega i Romans, Emma (Institut de Recerca i Tecnologia Agroalimentàries)
Marcet-Rius, Míriam (IRSEA (Research Institute in Semiochemistry and Applied Ethology). Physiological and Behavioural Mechanisms of Adaptation Department)
Vidal, Roser (Institut de Recerca i Tecnologia Agroalimentàries)
Escribano Tortosa, Damián (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Cerón, José Joaquín (Universidad de Murcia. Laboratorio Interdisciplinario de Análisis Clínicos Interlab)
Manteca Vilanova, Xavier (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Velarde, Antonio (Institut de Recerca i Tecnologia Agroalimentàries)

Data:	2019
Resum:	Some positive effects regarding the use of enrichment material on the stimulation of pig exploration and a reduction in redirected behaviour was reported. This study aims to evaluate the effects of four enrichment materials on the behaviour, physiology/health, performance and carcass and meat quality in pigs kept in Spanish production conditions. Ninety-six male pigs (six pigs/pen) ranging from 70 to 170 days old were used. Chains were used for the control group (CH), and wooden logs (W), straw in a rack (S) or paper (P) were also used. The pigs were subjected to two pre-slaughter treatments: 0 or 12 h of fasting. Their behaviour was observed for 12 weeks using scan and focal sampling. Samples of the Neutrophil: Lymphocyte (N:L) ratio and lactate were obtained from the pigs at 66 and 170 days old. Saliva samples for Chromogranin-A (CgA) were obtained at 67, 128, 164 and 170 days old. The weight, skin lesions and feed intake of the pigs were recorded. S triggered more exploratory behaviour than W and CH (P < 0. 001). Skin lesions and redirected behaviour were lower for pigs with S (P < 0. 01 and P < 0. 05, respectively). The pigs offered S presented lower CgA after no fasting than pigs with P or CH (P = 0. 055). Lactate was higher in pigs with W and CH treatments, regardless of fasting (P < 0. 05). The N:L ratio increased over time (P < 0. 05). No other significant effects were found. Overall, straw in a rack was the enrichment material that enhanced pig inherent behaviour. View Full-Text.
Ajuts:	Ministerio de Economía y Competitividad FJCI-2015-24662 Ministerio de Economía y Competitividad AGL2015-68373-C2-2-R
Nota:	Altres ajuts: IRTA/AGL2015-68373-C2-2-R
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Environmental enrichment ; Pig ; Behaviour ; Performance ; Chromogranin-A ; Lactate ; Skinlesions ; Meat quality
Publicat a:	Animals, Vol. 9 Núm. 5 (may 2019) , p. 235, ISSN 2076-2615

DOI: 10.3390/ani9050235
PMID: 31086082

20 p, 1.0 MB

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