The Natural Behaviour of the Pig

摘要: In a book about the welfare of pig, need to understand natural behaviour pig will be immediately obvious those who define good in terms an animal’s capacity behave way (KileyWorthington, 1989; Rollin, 1993). Other authors prefer welfaremainly health and biological functioning (Broom Johnson, 1993), or subjective mental states feelings (Dawkins, 1990; Duncan, 1993; reviewed by Fraser et al., 1997). However is defined, knowledge can useful identifying problems. Recent changes husbandry housing environments have occurred relatively rapidly context both evolutionary time, domestication history pig. As result, problems arise due mismatch between pig’s behavioural needs its environment. Problems occur where thwarted (e.g. sow attempting nestbuild without substrates restricted space) inappropriately redirected tail-biting). Studying unrestricted pigs setting provide information range role behaviours that perform, their choices use habitat could clues needs. When more intensive contrasted, differences may reveal aspects which are prevented not stimulated (Graves, 1984; Stolba Wood-Gush, Mendl, 1995; SVC, Wood-Gush (1984) directly applied this thinking studying free-ranging pigs, key environmental features apply new system design (see also Arey Brooke, 2006). At end chapter, we return