The energy value of short-chain fatty acids infused into the caecum of pigs

The British Journal of Nutrition
H JørgensenB O Eggum

Abstract

The present work was undertaken to study the energy value of a mixture of acetic, propionic and butyric acids (0.682:0.226:0.092) infused intracaecally in growing pigs. A basal diet low in fibre (42 g NSP/kg DM) was given at below the requirement for maximum weight gain. In six 2-week periods, N and energy balance measurements in eight growing pigs were carried out with and without infusion of short-chain fatty acids (SCFA). Heat production was measured using open-circuit chambers and the concentration of SCFA in faeces was determined. Less than 1% of the infused SCFA was excreted in faeces illustrating the capacity of the hind-gut to absorb and metabolize SCFA. Infusion of SCFA did not affect the digestibility of nutrients and energy. However, N retention increased demonstrating that SCFA are an energy source for protein gain when pigs are fed at below the requirement of energy. Increased CH4 production together with an increased excretion of branched-chain fatty acids in faeces suggested that there was a higher microbial activity in the hind-gut during infusion. The partial utilization of the infused energy in SCFA was 0.821. A small proportion of the infused energy in SCFA was retained in protein (0.099) and a considerable a...Continue Reading

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Citations

Apr 12, 2001·The British Journal of Nutrition·G Livesey
Mar 20, 2012·Acta neurologica Belgica·Veerle BeckersRaf Brouns
May 15, 2015·International Journal of Obesity : Journal of the International Association for the Study of Obesity·C S ByrneG Frost
May 23, 2015·Animal : an International Journal of Animal Bioscience·R Jha, J D Berrocoso
Jan 15, 2013·Physiology & Behavior·Carol Souza da SilvaJoost J G C van den Borne
Aug 6, 1999·Journal of Pediatric Gastroenterology and Nutrition·M ChristianL T Weaver
Apr 8, 2020·Journal of Animal Science·Jung W LeeTofuko A Woyengo
Jul 23, 2020·Nature Metabolism·James FramptonEdward S Chambers
May 4, 2021·Journal of Animal Science·Bonjin Koo, Charles Martin Nyachoti
Jul 15, 2021·Animal Nutrition·Faegheh ZaefarianVelmurugu Ravindran
May 27, 2021·Journal of Animal Science·Barbara U Metzler-ZebeliFrederike Lerch
Oct 22, 2021·Journal of Animal Science·Felina P Y TanRuurd T Zijlstra

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