The influence of cage size and environmental enrichment on the development of stereotypies in bank voles (Clethrionomys glareolus)

@article{citeulike:271088, abstract = {Bank voles were bred and lived in 4 different environments: small barren cages (SB), small enriched cages (SR), big barren cages (BB) and big enriched ones (BR). Ten different behaviours were recorded at the age of 30, 45, 60, 61, 75 and 90 days. Between day 60 and 61, within each experimental environment, the group of voles performing stereotypies (ST) and the group of those which did not (NST) were each split in two, one part being transferred to a new environment, the other remaining in the same as control. For each of the 10 behaviours, differences between the 4 environments and therein differences between the ST and the NST animals and between the age groups were analysed with a split-plot ANOVA.The results indicated that enrichment is more determinant than cage size, as more voles developed stereotypies in SB and BB than in SR and BR.Improving the environment after day 60 inhibited the stereotypies in most ST animals, while smaller and/or barren environments elicited them in very few NST.ST voles performed significantly more rearing and walking-sniffing and showed significantly less immobility than NST ones. These differences remained linked to the ST/NST status when an animal reversed it after day 60.Within different environments, some individuals are more prone to react actively to frustration, including the development of stereotypies. The performance of stereotypies is associated with a more general behavioural activation.}, author = {Odberg, F. O. }, citeulike-article-id = {271088}, comment = {Observation period was 10 minutes. Duration of behaviours was recorded. He doesn't tell you the exact form of the stereotypies? Refers the reader to Odberg (1986b). ---=note-separator=--- Only about a third of animals developed SS, in any condition. ---=note-separator=--- "As most SS are performed against or along the cage walls (Odberg, 1986b), the twigs were placed centrally so that the eventual performance of SS would not be obstructed." p. 157 I've wondered about this very issue. ---=note-separator=--- Points out that SS may not be easily reversible, citing Levy (1944) and Davenport \& Menzel (1963). These data show otherwise, however, which unfortunately restricts the novelty of what I'll propose.}, doi = {http://dx.doi.org/10.1016/0376-6357(87)90042-8}, journal = {Behavioural Processes}, keywords = {cage\_size, enrichment, hardcopy, stereotypy, voles}, month = {April}, number = {2}, pages = {155--173}, posted-at = {2005-08-01 22:01:38}, priority = {0}, title = {The influence of cage size and environmental enrichment on the development of stereotypies in bank voles (Clethrionomys glareolus)}, url = {http://dx.doi.org/10.1016/0376-6357(87)90042-8}, volume = {14}, year = {1987} }

TY - JOUR ID - citeulike:271088 L3 - citeulike-article-id:271088 TI - The influence of cage size and environmental enrichment on the development of stereotypies in bank voles (Clethrionomys glareolus) JF - Behavioural Processes VL - 14 IS - 2 SP - 155 EP - 173 N2 - Bank voles were bred and lived in 4 different environments: small barren cages (SB), small enriched cages (SR), big barren cages (BB) and big enriched ones (BR). Ten different behaviours were recorded at the age of 30, 45, 60, 61, 75 and 90 days. Between day 60 and 61, within each experimental environment, the group of voles performing stereotypies (ST) and the group of those which did not (NST) were each split in two, one part being transferred to a new environment, the other remaining in the same as control. For each of the 10 behaviours, differences between the 4 environments and therein differences between the ST and the NST animals and between the age groups were analysed with a split-plot ANOVA.The results indicated that enrichment is more determinant than cage size, as more voles developed stereotypies in SB and BB than in SR and BR.Improving the environment after day 60 inhibited the stereotypies in most ST animals, while smaller and/or barren environments elicited them in very few NST.ST voles performed significantly more rearing and walking-sniffing and showed significantly less immobility than NST ones. These differences remained linked to the ST/NST status when an animal reversed it after day 60.Within different environments, some individuals are more prone to react actively to frustration, including the development of stereotypies. The performance of stereotypies is associated with a more general behavioural activation. KW - cage_size KW - enrichment KW - hardcopy KW - stereotypy KW - voles N1 - Observation period was 10 minutes. Duration of behaviours was recorded. He doesn't tell you the exact form of the stereotypies? Refers the reader to Odberg (1986b). N1 - Only about a third of animals developed SS, in any condition. N1 - "As most SS are performed against or along the cage walls (Odberg, 1986b), the twigs were placed centrally so that the eventual performance of SS would not be obstructed." p. 157 I've wondered about this very issue. N1 - Points out that SS may not be easily reversible, citing Levy (1944) and Davenport & Menzel (1963). These data show otherwise, however, which unfortunately restricts the novelty of what I'll propose. AU - Odberg, FO PY - 1987/04// UR - http://dx.doi.org/10.1016/0376-6357(87)90042-8 ER -