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Sources of Dietary Fiber Affect the SCFA Production and Absorption in the Hindgut of Growing Pigs
- Source :
- Frontiers in Nutrition, Frontiers in Nutrition, Vol 8 (2022)
- Publication Year :
- 2021
-
Abstract
- Effects of different dietary fiber (DF) sources on short-chain fatty acids (SCFA) production and absorption in the hindgut of growing pigs were studied by an in vivo–vitro (ileal cannulated pigs and fecal inoculum-based fermentation) method. Thirty-six cannulated pigs (body weight: 48.5 ± 2.1 kg) were randomly allocated to 6 treatments containing the same DF content (16.5%), with either wheat bran (WB), corn bran (CB), sugar beet pulp (SBP), oat bran (OB), soybean hulls (SH), or rice bran (RB) as DF sources. Pigs were allowed 15 days for diet adaptation, and then, fresh ileal digesta and feces were collected to determine SCFA concentration which was normalized for food dry matter intake (DMI) and the hindgut DF fermentability. Fecal microbiota was inoculated into the freeze-dried ileal digesta samples to predict the ability of SCFA production and absorption in the hindgut by in vitro fermentation. The SH group had the largest concentration of total SCFA and propionate in ileal digesta and fecal samples of growing pigs (p < 0.05). Nonetheless, the predicted acetate, total SCFA production, absorption in the SBP group were the highest (p < 0.01), but the lowest in the OB group (p < 0.01) among all groups. Even SBP and OB group had a similar ratio of soluble DF (SDF) to insoluble DF (IDF). The CB group had high determined ileal and fecal butyrate concentration but the lowest butyrate production and absorption in the hindgut (p < 0.01). Overall, the source of DF had a great impact on the hindgut SCFA production and absorption, and SBP fiber had a great potential to increase hindgut SCFA production and absorption.
- Subjects :
- Nutrition and Dietetics
animal structures
hindgut fermentation
Nutrition. Foods and food supply
Endocrinology, Diabetes and Metabolism
digestive, oral, and skin physiology
food and beverages
fiber sources
digestive system
growing pigs
SCFA production and absorption
in vivo-vitro method
TX341-641
Food Science
Nutrition
Original Research
Subjects
Details
- ISSN :
- 2296861X
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Frontiers in nutrition
- Accession number :
- edsair.doi.dedup.....12e20b77254a5a7184882a4810c3997a