Diet-induced thermogenesis and glucose oxidation in broiler chickens: influence of genotype and diet composition

Poultry Science
Q SwennenJ Buyse

Abstract

The main objectives of this study were to explore the role of diet-induced thermogenesis in the regulation of voluntary feed intake and to determine the glucose oxidation of broiler chicken strains, known to differ in glucose-insulin balance. From 2 to 7 wk of age, male broiler chickens of a fat and a lean line were reared on 1 of 2 isoenergetic diets with constant gross energy and carbohydrate levels but with substitutions between fat and protein. The low protein (LP/HF) diet contained 126 g of protein/kg and 106 g of fat/kg, whereas the low fat (LF/HP) diet contained 242 g of protein/kg and 43 g of fat/kg. There was no significant effect of the genetic background of the broilers on the glucose oxidation rate (as measured by stable isotope breath test) or protein oxidation (as measured by plasma uric acid levels). Considering the difference in carcass composition (fat content) of both lines, this leads to the hypothesis that the lines differ predominantly in fat metabolism. Although there was no line effect on plasma triglyceride and free fatty acid concentrations, it was hypothesized that there might be differences in fat oxidation or de novo lipogenesis, or both, between the genotypes. Diet-induced thermogenesis per metaboli...Continue Reading

Citations

Mar 24, 2012·Animal : an International Journal of Animal Bioscience·I Kyriazakis
Jul 4, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Stephen M Secor
Mar 5, 2009·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·A CollinS Tesseraud
Nov 13, 2009·Journal of Animal Physiology and Animal Nutrition·Q SwennenJ Buyse
Feb 26, 2013·Animal : an International Journal of Animal Bioscience·E Baéza, E Le Bihan-Duval
Jan 21, 2020·Journal of Animal Science·Jill R NelsonGregory S Archer
Oct 20, 2018·Frontiers in Physiology·Bahareldin A AbdallaXiquan Zhang

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