Effect of cereal fermentation and carbohydrase supplementation on growth, nutrient digestibility and intestinal microbiota in liquid-fed grow-finishing pigs

Torres-Pitarch, Alberto and Gardiner, Gillian E. and Cormican, Paul and Rea, Mary and Crispie, Fiona and O’Doherty, John V. and Cozannet, Pierre and Ryan, Tomas and Cullen, James and Lawlor, Peadar G. (2020) Effect of cereal fermentation and carbohydrase supplementation on growth, nutrient digestibility and intestinal microbiota in liquid-fed grow-finishing pigs. Scientific Reports, 10 (1). ISSN 2045-2322

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Abstract

This study aimed to determine the impact of fermenting the cereal fraction of the diet (Cferm) and enzyme supplementation (ENZ) on the bacterial composition of the feed, nutrient digestibility, pig growth, feed efficiency (FE), intestinal volatile fatty acid (VFA) concentrations and intestinal microbiota composition. A total of 252 grow-finisher pigs (~ 40.4 kg; 7 pigs/pen) were randomly allocated to 4 diets in a 2 × 2 factorial arrangement for 55d. The diets were: (1) fresh liquid feed (Fresh); (2) Cferm liquid feed (Ferm); (3) Fresh + ENZ and (4) Ferm + ENZ. Cferm increased total tract nutrient digestibility, reduced caecal butyrate and propionate concentrations, and increased average daily gain (ADG). ENZ increased ileal and total tract nutrient digestibility, reduced caecal isobutyrate and propionate concentrations, and improved FE. Bacterial taxa positively correlated with pig growth (Lactobacillus kisonensis in the ileum and Roseburia faecis in the caecum) were more abundant in pigs fed ENZ diets, whereas most of the ileal bacterial taxa negatively correlated with growth (Megasphaera, Bifidobacterium and Streptococcus) had lower abundance in pigs fed Cferm diets. In conclusion, Cferm increased ADG and ENZ improved FE, with these improvements possibly mediated by increased nutrient digestibility, and beneficial modulation of the intestinal microbiota.

Item Type:	Article
Additional Information:	Funding Information: We thank the technical and farm staff in the Pig Development Department at Teagasc, Moorepark, for assistance with pig management and laboratory work. Thanks to Marleen Van der Heide for her assistance with the animal study and in the laboratory. We also thank personnel at the Animal Nutrition Laboratory at Lyons Research Farm, University College Dublin for assistance with nutrient digestibility and volatile fatty acid determinations. Research leading to these results received funding from the Teagasc-funded project PIG-ZYME (project no. PDPG6671) and the European Union’s Seventh Framework Programme for research, technological development and demonstration (ECO-FCE project no. 311794). Publisher Copyright: © 2020, The Author(s).
Uncontrolled Keywords:	/dk/atira/pure/subjectarea/asjc/1000
Departments or Groups:
Depositing User:	Admin SSL
Date Deposited:	19 Oct 2022 23:08
Last Modified:	03 Aug 2023 22:25
URI:	http://repository-testing.wit.ie/id/eprint/4242

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