Effects of dietary macronutrient content on energy metabolism and uncoupling protein mRNA expression in broiler chickens
| Autor: | Ramon D. Malheiros, Anne Collin, Veerle Darras, Mohammed Taouis, Vera Maria Barbosa de Moraes, Johan Buyse, Pieter Van As, Eddy Decuypere |
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| Přispěvatelé: | Unité de Recherches Avicoles (URA), Institut National de la Recherche Agronomique (INRA), Laboratory of Physiology, Immunology, and Genetics of Domestic Animals, Catholic University of Leuven, Laboratory of Comparative Endocrinology, Zoological Institute K.U. Leuven, Laboratoire de Biologie Cellulaire et Moléculaire, Biotechnologies, INRA |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Male
[SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology Medicine (miscellaneous) MESH: Triiodothyronine MESH: Avian Proteins Gene expression Uncoupling protein MESH: Animals MESH: Thermogenesis Food science ComputingMilieux_MISCELLANEOUS 2. Zero hunger 0303 health sciences Nutrition and Dietetics Triiodothyronine [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior MESH: Energy Metabolism MESH: Chickens MESH: Mitochondrial Proteins [SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences Thermogenesis 04 agricultural and veterinary sciences MESH: Gene Expression Regulation medicine.anatomical_structure Animal Nutritional Physiological Phenomena Mitochondrial Uncoupling Proteins medicine.medical_specialty MESH: Iodide Peroxidase MESH: Mitochondrial Uncoupling Proteins Biology Iodide Peroxidase Avian Proteins Mitochondrial Proteins 03 medical and health sciences Gastrocnemius muscle Internal medicine medicine Animals RNA Messenger MESH: RNA Messenger 030304 developmental biology Body Weight 0402 animal and dairy science Broiler Skeletal muscle MESH: Thyroxine Carbohydrate 040201 dairy & animal science MESH: Male MESH: Body Weight Thyroxine MESH: Animal Nutritional Physiological Phenomena Endocrinology Gene Expression Regulation Energy Metabolism Chickens [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition |
| Zdroj: | British Journal of Nutrition British Journal of Nutrition, Cambridge University Press (CUP), 2003, 90, pp.261-269 British Journal of Nutrition, Cambridge University Press (CUP), 2003, 90 (2), pp.261-269. ⟨10.1079/bjn2003910⟩ |
| ISSN: | 0007-1145 1475-2662 |
| DOI: | 10.1079/bjn2003910⟩ |
| Popis: | The objective of the present study was to investigate the effects of dietary macronutrient ratio on energy metabolism and on skeletal muscle mRNA expression of avian uncoupling protein (UCP), thought to be implicated in thermogenesis in birds. Broiler chickens from 2 to 6 weeks of age received one of three isoenergetic diets containing different macronutrient ratios (low-lipid (LL) 30 v. 77 g lipid/kg; low-protein (LP) 125 v. 197 g crude protein (N×6·25)/kg; low-carbohydrate (LC) 440 v. 520 g carbohydrate/kg). LP chickens were characterised by significantly lower body weights and food intakes compared with LL and LC chickens (−47 and −38 % respectively) but similar heat production/kg metabolic body weight, as measured by indirect calorimetry, in the three groups. However, heat production/g food ingested was higher in animals receiving the LP diet (+41 %, PPgastrocnemius muscle, measured by reverse transcription–polymerase chain reaction, than the LL diet (88 and 90 v. 78 % glyceraldehyde-3-phosphate dehydrogenase respectively, P |
| Databáze: | OpenAIRE |
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