title: [Nutrient dependence of energy preservation requirements in rats. 1. Dependence of energy requirements for preservation in fully-grown rats on the type of nutrient offered as the sole energy source].
abstract: In two experiments with fully-grown albino rats (Wistar strain) the energetic utilization of glucose, sunflower oil and casein in the maintenance metabolism was determined under thermoneutral conditions of keeping the animals. The relative requirement of metabolizable energy for maintenance was, with either glucose, sunflower oil or casein being the sole energy source of the feed, in experiment 1 100:105:133 and in experiment 2 100:102:135. The absolute values of the maintenance requirement of metabolizable energy were in experiment 1 347 +/- 26, 364 +/- 61 and 460 +/- 33 resp., and in experiment 2 330 +/- 11, 337 +/- 21 and 446 +/- 27 kJ/kg LW 0.75 resp. The results are discussed in connection with the efficiency of ATP synthesis (metabolizable energy/mol ATP gain) in the oxidative decomposition of nutrients.
mesh_terms: D000255:Adenosine Triphosphate / Q000096:biosynthesis; D000818:Animals; D001835:Body Weight; D002244:Carbon / Q000378:metabolism; D002364:Caseins / Q000378:metabolism*; D004032:Diet; D004040:Dietary Carbohydrates / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism; D004734:Energy Metabolism; D005947:Glucose / Q000378:metabolism*; D008297:Male; D009584:Nitrogen / Q000378:metabolism; D010938:Plant Oils / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D000074242:Sunflower Oil
chemical_list: D002364:Caseins; D004040:Dietary Carbohydrates; D004044:Dietary Proteins; D010938:Plant Oils; D000074242:Sunflower Oil; D002244:Carbon; D000255:Adenosine Triphosphate; D005947:Glucose; D009584:Nitrogen
vernacular_title: Untersuchungen an Ratten zur Nährstoffabhängigkeit des Energieerhaltungsbedarfs. 1. Mitteilung. Abhängigkeit des Energiebedarfs für Erhaltung ausgewachsener Ratten von der Art des Nährstoffs, der als alleinige Energiequelle angeboten wird.