 at least one study ( Eskola and Kaliste-Korhonen 1999b ) has reported that nesting material did not affect breeding results. H Some conditions might require increased environmental temperatures, such as postoperative recovery, maintenance of chicks for the first few days after hatching, housing of some hairless rodents, and housing of neonates that have been separated from their mothers. JE 2003 ; Van Zutphen et al. Dean A mouse is generally not aggressive, and will try to evade rather than attack. Baumans C Animals have physiological and behavioral needs. Stauffacher RA Providing the animals with different food items (e.g., carrots for rabbits, seeds for rodents) may act as taste stimuli (see Nutritional Enrichment below). H However, housing systems for laboratory animals have often been designed on the basis of economic and ergonomic aspects. Hedrich Bayne Whereas enrichment objects are static and of interest only for specific activities, a social partner always creates new and unpredictable situations to which the animal must react. TG Brain Enrichment should pose no risks to the animals (i.e., cause injuries or excessive aggression), to the humans (i.e., jeopardize the health and safety of the animal staff), or to the experiments (i.e., cause undesirable interference or an excessive increase in the number of animals used). Size: Appropriate size will vary by species and tissue. HA Bogdanovich It is also important to note that GLP requirements might demand a definition and analysis of the materials used. AWIC Resource Series, Environmental Enrichment for Laboratory Mice: Preferences and Consequences, Preferences for nesting material as environmental enrichment for laboratory mice, Nesting material as environmental enrichment has no adverse effects on behavior and physiology of laboratory mice, Strength of preference for nesting material as environmental enrichment in laboratory mice, Effects of environmental enrichment for mice: Variation in experimental results. Baumans. TJ Köning Several reports ( Nolen and Alexander 1966 ; Norris and Adams 1976 ; Porter and Lane-Petter 1965 ) have indicated that providing nesting material can lead to a reduction in pre-weaning mortality and a greater number of surviving pups. T The purpose of these guidelines and rules are to prevent sample contamination. 1997a ; Van Loo et al. E Baumans The use of environmental enrichment to improve the well-being of laboratory animals is widely promoted and is currently incorporated in European legislation (Council of Europe, Revision of Appendix A, ETS 123, in preparation).. Kruitwagen The mouse has a short lifespan (one mouse year equals about 30 human years) which means scientists can easily measure the effects of ageing. MS 2002 ). Baumans K 1994 ). van Zutphen Held However, mice still showed a disturbance reaction (freeze or flight) during exposure to loud noise, irrespective of background music ( Van Loo et al. Monitoring Laboratory Room Temperature and Humidity. Lawson Diamond 2002 ). We use cookies to personalize our website and to analyze web traffic to improve the user experience. V a mouse up at the base of the tail, note its body condition by passing your finger over the sacroiliac bones (back and pubic bones). Inside the cage in re… Author summary Adequate housing of laboratory animals is essential to their... 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