Activity and rest alternation: temporal distribution and influencing factors in nocturnal rodents

Lifestyle and heredity are two different terms but yet closely related components. An evaluation for the time invested in sleep locomotion behaviors per second Wistar rats animal model was carried out. A total of six within same cage were marked by color a room supported day’s light (12h lighting/12h darkness). These animals filmed 18 h daily ten days (9h lighting, 9h darkness) to estimate budget temporal distribution taking into account nature this biological model’s activity. The results obtained reveal sleeping/locomotion cycles respecting natural photoperiod except rat that shows dominance nocturnal compared rest rats. advances support change photoperiodic behavior response an adaptation rhythm imposed manipulator. They invite studies on larger sample consolidate controlled environment.