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Animal Science Database

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Abstract

Social interactions between individuals, such as co-operation and competition, are key factors in evolution by natural selection. As a consequence, evolutionary biologists have developed extensive theories to understand the consequences of social interactions for response to natural selection....

Author(s)
Rodenburg, T. B.; Bijma, P.; Ellen, E. D.; Bergsma, R.; Vries, S. de; Bolhuis, J. E.; Kemp, B.; Arendonk, J. A. M. van
Publisher
Universities Federation for Animal Welfare (UFAW), Wheathampstead, UK
Citation
Animal Welfare, 2010, 19, Supplement, pp 77-82
Abstract

Forty-eight Large White × Landrace multiparous sows were mixed into twelve groups of four animals after their piglets were weaned. These groups were defined as static, with no animals being added to or removed from the groups after their formation. Aggressive and submissive behaviours were recorded ...

Author(s)
O'Connell, N. E.; Beattie, V. E.; Moss, B. W.
Publisher
Universities Federation for Animal Welfare (UFAW), Wheathampstead, UK
Citation
Animal Welfare, 2003, 12, 2, pp 239-249
Abstract

320 pigs were reared from birth to 15 weeks of age in either barren or enriched environments. The barren environments were defined by common intensive housing conditions (slatted floors and in terms of recommended space allowances), while the enriched environments incorporated extra space and...

Author(s)
O'Connell, N. E.; Beattie, V. E.
Citation
Animal Welfare, 1999, 8, 3, pp 269-279
Abstract

Using 2 groups of gilts of 7 months of age A (6 pigs) and B (8 pigs) which had no contact with each other, different pairs of B gilts were mixed first with Group A for 4 days (first grouping), returned to B for 7 days, and then regrouped with Group A (second grouping) for 1 day. Aggressive...

Author(s)
Olsson, A. C.; Svendsen, J.
Citation
Swedish Journal of Agricultural Research, 1997, 27, 1, pp 33-43