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http://dx.doi.org/10.5713/ajas.15.0190

The Effects of Components of Grazing System on Welfare of Fattening Pigs  

Tozawa, Akitsu (Graduate School of Agricultural Science, Tohoku University)
Tanaka, Shigefumi (Graduate School of Agricultural Science, Tohoku University)
Sato, Shusuke (Graduate School of Agricultural Science, Tohoku University)
Publication Information
Asian-Australasian Journal of Animal Sciences / v.29, no.3, 2016 , pp. 428-435 More about this Journal
Abstract
The objective of this study was to clarify the most effective component of grazing for improving welfare of fattening pigs. This study compared welfare indicators of 20 fattening pigs aged 100 to 124 days (the prior period) and 138 to 164 days (the latter period) in an indoor housing system (IS), an outdoor pasturing system (OP), a concrete floor paddock system (CF), a concrete floor paddock system with fresh grass (FG), or a soil floor paddock system (SF). The last three treatments include important components of a grazing system: extra space, grass feed, and soil floor. Behavior, wounds on the body, and performances, measured as average daily gain (ADG) and feed conversion ratio, were observed. CF pigs behaved similarly to IS pigs. FG pigs showed higher levels of foraging, chewing and activity. SF pigs engaged in higher levels of foraging, exploring, activity, and rooting, and showed a similar amount of playing behavior as OP pigs. ADG was the same in all treatments at the prior period, and increased in the order FG, IS, CF, SF, and OP at the latter. The behaviors and performance of SF pigs resembled those of OP which seemed to indicate a consistently higher standard of welfare than the other treatments. In conclusion, the existence of a soil floor is the most important component of a pasture for improving the welfare of pigs.
Keywords
Behavior; Grass; Grazing; Pigs; Soil; Space Allowance;
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  • Reference
1 Petherick, J. C. 1983. A biological basis for the design of space in livestock housing. In: Farm Animal Housing and Welfare (Eds. S. H. Baxter, M. R. Baxter, and J. A. D. McCormack). Martinus Nijhoff, The Hague, The Netherlands. pp. 103-120.
2 R Development Core Team. 2013. R: A language and environment for statistical computing ver.3.0.2. R Foundation for Statistical Computing, Vienna, Austria. http://www.R-project.org/ Accessed October 2, 2013
3 Randolph, J. H., G. L. Cromwell, T. S. Stahly, and D. D. Kratzer. 1981. Effects of group size and space allowance on performance and behavior of swine. J. Anim. Sci. 53:922-927.   DOI
4 Spoolder, H. A. M., S. A. Edwards, and S. Corning. 2000. Legislative methods for specifying stocking density and consequences for the welfare of finishing pigs. Livest. Prod. Sci. 64:167-173.   DOI
5 Stolba, A. and D. G. M. Wood-Gush. 1989. The behaviour of pigs in a semi-natural environment. Anim. Prod. 48:419-425.   DOI
6 Van Putten, G. 1979. Ever been close to a nosey pig? Appl. Anim. Ethol. 5:298.   DOI
7 Welfare Quality Consortium. 2009. Welfare Quality assessment protocol for pigs (sows and piglets, growing and finishing pigs). Welfare Quality Consortium, Lelystad, Netherlands.
8 Wood-Gush, D. G. M. and R. G. Beilharz. 1983. The enrichment of a bare environment for animals in confined conditions. Appl. Anim. Ethol. 10:209-217.   DOI
9 Wood-Gush, D. G. M. and K. Vestergaard. 1989. Exploratory behavior and the welfare of intensively kept animals. J. Agric. Ethics 2:161-169.   DOI
10 Anil, L., S. S. Anil, and J. Deen. 2007. Effects of allometric space allowance and weight group composition on grower-finisher pigs. Can. J. Anim. Sci. 87:139-151.   DOI
11 Appleby, M. C. and D. G. M. Wood-Gush. 1988. Effect of earth as an additional stimulus on the behaviour of confined piglets. Behav. Processes 17:83-91.   DOI
12 Baxter, S. 1984. Intensive Pig Production: Environmental Management and Design. Granada Publishing Ltd, London, UK.
13 Bigelow, J. A. and T. R. Houpt. 1988. Feeding and drinking patterns in young pigs. Physiol. Behav. 43:99-109.   DOI
14 Beattie, V. E., N. Walker, and I. A. Sneddon. 1995. Effects of environmental enrichment on behaviour and productivity of growing pigs. Anim. Welf. 4:207-220.
15 Beattie, V. E., N. Walker, and I. A. Sneddon. 1998. Preference testing of substrates by growing pigs. Anim. Welf. 7:27-34.
16 Beattie, V. E. and N. E. O'Connell. 2002. Relationship between rooting behaviour and foraging in growing pigs. Anim. Welf. 11:295-303.
17 Bracke, M. B. M., J. J. Zonderland, P. Lenskens, W. G. P. Schouten, H. Vermmer, H. A. M. Spoolder, H. J. M. Hendriks, and H. Hopster. 2006. Formalised review of environmental enrichment for pigs in relation to political decision making. Appl. Anim. Behav. Sci. 98:165-182.   DOI
18 Day, J. E. L., H. A. M. Spoolder, A. Burfoot, H. L. Chamberlain, and S. A. Edwards. 2002. The separate and interactive effects of handling and environmental enrichment on the behaviour and welfare of growing pigs. Appl. Anim. Behav. Sci. 75:177-192.   DOI
19 De Jong, I. C., E. D. Ekkel, J. A. Van de Burgwal, E. Lambooij, S. M. Korte, M. A. W. Ruis, J. M. Koolhaas, and H. J. Blokhuis. 1998. Effects of strawbedding on physiological responses to stressors and behaviour in growing pigs. Physiol. Behav. 64:303-310.   DOI
20 Guy, J. H., P. Rowlinson, J. P. Chadwick, and M. Ellis. 2002. Behaviour of two genotypes of growing-finishing pig in three different housing systems. Appl. Anim. Behav. Sci. 75:193-206.   DOI
21 KilBride, A., C. Gillman, P. Ossent, and L. Green. 2009. Impact of flooring on the health and welfare of pigs. In Pract. 31:390-395.   DOI
22 Haskell, M., F. Wemelsfelder, M. T. Mendl, S. Calvert, and A. B. Lawrence. 1996. The effect of substrate-enriched and substrate-impoverished housing environment on the diversity of behaviour in pigs. Behaviour 133:741-761.   DOI
23 Hughes, B. O. and I. J. H. Duncan. 1988. The notion of ethological 'need', models of motivation and animal welfare. Anim. Behav. 36:1696-1707.   DOI
24 Jensen, P. 1984. Effects of confinement on social interaction patterns in dry sows. Appl. Anim. Behav. Sci. 12:93-101.   DOI
25 Martin, P. and P. Bateson. 1986. Measuring Behaviour. Cambridge University Press, Cambridge, UK.
26 Meunier-Salaun, M. C., M. N. Vantrimponte, A. Raab, and R. Dantzer. 1987. Effect of floor area restriction upon performance, behavior and physiology of growing-finishing pigs. J. Anim. Sci. 64:1371-1377.   DOI
27 Olsen, A. W. 2001. Behaviour of growing pigs kept in pens with outdoor runs: I. Effect of access to roughage and shelter on oral activities. Livest. Prod. Sci. 69:255-264.   DOI
28 Pearce, G. P. and A. M. Paterson. 1993. The effect of space restriction and provision of toys during rearing on the behaviour, productivity and physiology of male pigs. Appl. Anim. Behav. Sci. 36:11-28.   DOI
29 Petersen, V., H. B. Simonsen, and L. G. Lawson. 1995. The effect of environmental stimulation on the development of behaviour in pigs. Appl. Anim. Behav. Sci. 45:215-224.   DOI