title: [Continuous measuring of heat production and activity during the course of the day in hungry growing rats].
abstract: Heat production (indirect calorimetry) and motor activity were measured continuously with 4 repetitions at 8 male albino rats (24 h fasting) over 21 h (4 minute cycle of measured value registration). The average difference between maximum and minimum heat production in a 4-minute measuring period amounted to 82 +/- 14% (68 to 139%). There was a significant connection between heat production and activity. 7.9 +/- 1.2% of the heat production of the hungry rat could be ascribed to activity. In the course of the day of fasting (24 h) an average metabolism reduction of 15 kJ/kg LW0.75 could be observed.
authors.affiliation: Breich Tierernährung Oskar Kellner, Akademie der Landwirtschaftswissenschaften der DDR, Forschungszentrum für Tierproduktion Dummerstorf-Rostock.
authors.forename: L
authors.initials: L
authors.lastname: Hoffmann
authors.forename: H
authors.initials: H
authors.lastname: Scholze
mesh_terms: D000818:Animals; D001833:Body Temperature Regulation; D002151:Calorimetry; D005215:Fasting / Q000378:metabolism*; D006815:Hunger / Q000502:physiology*; D008297:Male; D009043:Motor Activity; D051381:Rats; D011919:Rats, Inbred Strains / Q000378:metabolism*
vernacular_title: Kontinuierliche Messung von Wärmeproduktion und Aktivität im Tagesverlauf an wachsenden Ratten bei Hunger.