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Abstract

A total of 480 growing-finishing pigs in three blocks were used in a 12-week study to quantify the effects of group size (10, 20, 40, and 80 pigs per pen) on aggression, aggression-related injuries, behavioral patterns, and the relationships among aggression, injuries, and growth rate. Pigs were...

Author(s)
Schmolke, S. A.; Li, Y. Z.; Gonyou, H. W.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Applied Animal Behaviour Science, 2004, 88, 1/2, pp 27-38
Abstract

Segregated early weaning is a means of improving disease control and performance in pigs. However, it has been linked to an increased incidence of anomalous behaviours, which raises welfare concerns. A common anomalous behaviour in early-weaned pigs is belly nosing, but the key causal factors of...

Author(s)
Li YuZhi; Gonyou, H. W.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Applied Animal Behaviour Science, 2002, 77, 4, pp 285-294
Abstract

Crossbred growing pigs, with an average initial weight of 29.9 kg, were housed in groups of 15 in 10 experimental pens (5 shapes × 2 sizes) to assess the importance of pen shape in the perception of space quality. Pen sizes provided 0.396 and 0.356 m2 per pig. In Experiment 1, 4 replications, each...

Author(s)
Wiegand, R. M.; Gonyou, H. W.; Curtis, S. E.
Citation
Applied Animal Behaviour Science, 1994, 39, 1, pp 49-61
Abstract

Behavioural observations were conducted on 3 groups (replicates) of 40 crossbred female pigs (10-21 days post-coitum) to determine the duration of social isolation of newly introduced animals, following introduction into a previously established group. Each group comprised 30 'resident' animals,...

Author(s)
Moore, A. S.; Gonyou, H. W.; Ghent, A. W.
Citation
Applied Animal Behaviour Science, 1993, 38, 3/4, pp 257-267