COMPARISON OF BEHAVIOURAL PATTERNS DISPLAYED BY FOUR DIFFERENT STRAINS OF RATS IN THE ENRICHED HOLE BOARD TEST

ORCE IG, CALDERÓN M, SERRANO L, SORIA G, FRAILE M, LANDA AI, GARGIULO PA.

de los Funes, San Luis, Argentina.

Simposio; XXIV Reunión Científica Anual de la Sociedad de Biología y IV reunión científica de microscopía.; 2006

Genetic of behaviour studies differences between individual patterns despite environmental conditions. In previous studies we have observed strains differences in Rattus norvegicus. The aim of the present study is to measure behavioural patterns displayed in an enriched hole board test by four different strains of rats (Holtzman [H], Wistar [W], Atriche IPL [A] y Sprague Dawley [SD]). Male rats weighing 230-250 g (n=15) were used. The following parameters were considered: ambulatory movements, non ambulatory movements, number of movements, rearing, horizontal activity, number of fecal boli, sniffing, head dipping, total exploration and time of contact with the novel object. The A strain showed a significant increase of ambulatory movements when compared with H and SD (p