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See detailEffects of space allowance on the welfare of dry sows kept in dynamic groups and fed with an electronic sow feeder
Remience, Virginie; Wavreille, José; Canart, Bernard et al

in Applied Animal Behaviour Science (2008), 112(3-4), 284-296

The minimal legal space allowance for grouped pregnant sows in the EU is 2.25 m(2)/sow. The effect of higher space per animal on agonistic behaviour and social stress of animals living in dynamic groups ... [more ▼]

The minimal legal space allowance for grouped pregnant sows in the EU is 2.25 m(2)/sow. The effect of higher space per animal on agonistic behaviour and social stress of animals living in dynamic groups is not known. Two groups of 34 pregnant Belgian Landrace sows were housed in two pens of respectively 102 m(2) (3 m(2)/sow) and 76.5 m(2) (2.25 m(2)/sow). Each sow lived there for 15 weeks. Sows were fed through an electronic sow feeder. According to the dynamic system, one third of each group (i.e. 11 or 12 nearly parturient sows) was replaced every 5 weeks by the same number of recently inseminated sows. Welfare indicators were collected during six of these 5 week-periods: performance, agonistic behaviour, skin lesion score and salivary cortisol. No differences were observed for production parameters, or for fighting activity. However, the mean number of one-way aggressions, when observed during 2 h-periods at 3 and 8 days after grouping, was significantly lower in the large pen than in the small one (respectively 16 +/- 2 versus 26 +/- 3, p < 0.01, and 10 +/- 2 versus 20 +/- 5, p < 0.05). The mean number of injuries was also lower with the 3 m(2) space allowance, when collected on the introduced sows one, 2 and 3 weeks after grouping. Some contradictory differences in salivary cortisol were noted 2 and 26 h after mixing, but without reaching statistical significance. An available area 33% higher than the EU legal minimum reduced agonistic behaviour and consecutive wounds and thus induced better welfare conditions for sows living in dynamic groups and fed with an electronic sow feeder. The impact on productivity and social physiological stress need further research. [less ▲]

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See detailCaractérisation de l'occupation d'un espace extérieur par des truies gestantes élevées en groupe en loges paillées.
Remience, Virginie; Wavreille, José; Canart, Bernard et al

in 40èmes Journées de la Recherche Porcine (2008)

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See detailThe welfare of farmed pigs
Meunier-Salaun, Marie-Claude; Bizeray, D.; Colson, V. et al

in Productions Animales (2007), 20(1), 73-80

The current intensive system of pig production is the outcome of better control of the environment, prevention of infectious disease, a feeding strategy adapted to the nutritional needs of pigs, and ... [more ▼]

The current intensive system of pig production is the outcome of better control of the environment, prevention of infectious disease, a feeding strategy adapted to the nutritional needs of pigs, and genetic selection oriented towards increased growth and reproductive performances. Meanwhile, certain practices have been shown to be detrimental to pig welfare. During the last few decades, research conducted on pig welfare has mainly been oriented towards measurement of behavioural and physiological responses to housing, feeding and management practices. The results have demonstrated the animals' difficulties to adapt to their conditions, particularly regarding changes in social relationships, impoverishment of the environment, restriction of space, and the development of management practices leading to discomfort, fear or pain. This review presents a summary of the scientific research conducted on the consequences of husbandry conditions and management practices on pig welfare. Finally, some possible solutions are presented for improving pig welfare by providing greater harmony between the animals and their environment. [less ▲]

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See detailEffets du moment de regroupement par rapport au début du cycle alimentaire sur le bien-être de truies en groupes dynamiques et alimentées au Distributeur Automatique de Concentré (DAC)
Remience, Virginie; Wavreille, José; Cloet, D. et al

in 39èmes Journées de la Recherche Porcine (2007)

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See detailEffects of space allowance on the welfare of pregnant sows housed in dynamic groups.
Remience, Virginie; Wavreille, José; Cloet, D. et al

in Proceedings of the 40th International Congress of the Internationnal Society for Applied Ethology (2006)

Detailed reference viewed: 11 (2 ULg)