Pattern of carbon dioxide production and retention is similar in adult pigs when fed hourly, but not when fed a single meal

BMC Physiology
Soenke MoehnR O Ball

Abstract

The understanding of bicarbonate kinetics and CO2 retention in the body is necessary to conduct amino acid tracer oxidation studies in both humans and laboratory animals. Significant metabolic activity is associated with eating which can affect bicarbonate steady state kinetics. A study was conducted to assess the impact of feeding regimen on the recovery of labelled bicarbonate and energy expenditure in adult female pigs (sows). Five catheterized sows (235 +/- 5 kg) were fed semi-synthetic diets as: a single meal 2 h into the infusion after an overnight fast, or in eight hourly meals starting 2 h before the infusion. Oxygen consumption, CO2 production and 14CO2 recovery (ie fraction not retained) were determined during primed, constant intravenous infusions of NaH14CO3. The 14CO2 recovery (%) after fasting (58.1 +/- 4.8) was lower than that after single meal feeding (78.8 +/- 5.9) or hourly meal feeding (81.0 +/- 2.6, P = 0.03). CO2 production correlated with 14CO2 recovery during hourly feeding (r = 0.40, P = 0.01); this relationship was not significant after single meal feeding (P = 0.30), probably due to physical activity-associated CO2 production. The correlation of CO2 retention factors with CO2 production during hourly f...Continue Reading

References

Sep 1, 1985·Canadian Journal of Physiology and Pharmacology·R O Ball, H S Bayley

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Citations

Apr 27, 2017·Journal of Animal Physiology and Animal Nutrition·L L McKnightA K Shoveller
Aug 26, 2014·Journal of Animal Science·D J FrancoR O Ball
Aug 19, 2007·Journal of Applied Physiology·Gregory C HendersonGeorge A Brooks
Jan 20, 2012·The Journal of Nutrition·Kristine L UrschelPat A Harris
Mar 31, 2015·Annals of the New York Academy of Sciences·Kenneth C WelchMarshall D McCue
Dec 15, 2015·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Marshall D McCue, Kenneth C Welch
Oct 24, 2006·The Journal of Nutrition·Barry D LambertDouglas G Burrin
Dec 24, 2010·Journal of Animal Science·C L LevesqueR O Ball
Oct 11, 2012·Journal of Animal Science·R S SamuelR O Ball
Sep 22, 2007·The Journal of Nutrition·Joost J G C van den BorneWalter J J Gerrits
May 10, 2013·Journal of Animal Science·D J FrancoR O Ball

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