Role of dietary fibre source and meal size on the ileal transit of digesta in growing pigs

Solà-Oriol, David; Torrallardona, D.; Gasa, J.

doi:10.1016/j.livsci.2010.06.027

Cited by 16 publications

(13 citation statements)

References 12 publications

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“…Mean retention time through the GIT, nutrient and fibre digestibility all increase with the age of pigs (Le Goff et al, 2002;Kim et al, 2007), as longer retention time improves nutrient digestibility. A study (Solà-Oriol et al, 2010) investigating the effect of wheat bran (13%) offered to pigs with white rice or oats found a faster passage rate for oats. The authors concluded that cereal with high fibre content, such as oats, increased passage rate.…”

Section: Gastric Distension and Emptying Ratementioning

confidence: 99%

Review: Effects of fibre, grain starch digestion rate and the ileal brake on voluntary feed intake in pigs

Ratanpaul

Williams

Black³

et al. 2019

Animal

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Grains rich in starch constitute the primary source of energy for both pigs and humans, but there is incomplete understanding of physiological mechanisms that determine the extent of digestion of grain starch in monogastric animals including pigs and humans. Slow digestion of starch to produce glucose in the small intestine (SI) leads to undigested starch escaping to the large intestine where it is fermented to produce short-chain fatty acids. Glucose generated from starch provides more energy than short-chain fatty acids for normal metabolism and growth in monogastrics. While incomplete digestion of starch leads to underutilised feed in pigs and economic losses, it is desirable in human nutrition to maintain consistent body weight in adults. Undigested nutrients reaching the ileum may trigger the ileal brake, and fermentation of undigested nutrients or fibre in the large intestine triggers the colonic brake. These intestinal brakes reduce the passage rate in an attempt to maximise nutrient utilisation, and lead to increased satiety that may reduce feed intake. The three physiological mechanisms that control grain digestion and feed intake are: (1) gastric emptying rate; (2) interplay of grain digestion and passage rate in the SI controlling the activation of the ileal brake; and (3) fermentation of undigested nutrients or fibre in the large intestine activating the colonic brake. Fibre plays an important role in influencing these mechanisms and the extent of their effects. In this review, an account of the physiological mechanisms controlling the passage rate, feed intake and enzymatic digestion of grains is presented: (1) to evaluate the merits of recently developed methods of grain/starch digestion for application purposes; and (2) to identify opportunities for future research to advance our understanding of how the combination of controlled grain digestion and fibre content can be manipulated to physiologically influence satiety and food intake.

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Section: Gastric Distension and Emptying Ratementioning

confidence: 99%

Review: Effects of fibre, grain starch digestion rate and the ileal brake on voluntary feed intake in pigs

Ratanpaul

Williams

Black³

et al. 2019

Animal

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“…Titanium dioxide (TiO 2 ) was used as an indigestible marker in this study to examine the transit of digesta through various segments of the GI tract. Previously, several digestibility studies have used TiO 2 as an indigestible marker (Myers, Ludden, Nayigihugu, & Hess, 2004;Short, Gorton, Wiseman, & Boorman, 1996;Sola-Oriol, Torrallardona, & Gasa, 2010), as an alternative to the most commonly used marker, chromic oxide (Kavanagh, Lynch, O'Mara, & Caffrey, 2001).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of gastrointestinal transit in rats fed dietary fibres differing in their susceptibility to large intestine fermentation

Paturi

Butts

Monro

et al. 2012

Journal of Functional Foods

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Non-digestible carbohydratesShort-chain fatty acids Titanium dioxide Transit time A B S T R A C TThe rate and extent of in situ digesta transit after ingestion of diets containing dietary fibres differing in their susceptibility to large intestine fermentation were investigated. One hundred and twenty rats were fed diets containing 7.5% cellulose, inulin, potato fibre or maize starch for 3 days, then the same diets with titanium dioxide (TiO 2 ) for 3 days, followed by diets without TiO 2 for 2 days. In all diets, TiO 2 ratios rapidly increased within 24 h and reached a maximum level in duodenum, caecum and colon within 2-3 days. Inulin, potato fibre and maize starch-fed rats showed higher levels of caecal short-chain fatty acids, lower faecal polysaccharide concentrations, and reduced faecal output than the rats fed cellulose. Inulin was highly susceptible to caecal microbial fermentation compared to the other dietary fibres. Transit of these dietary fibres through the GI tract was rapid, and the rate of digesta transit was not affected by dietary fibre fermentability in the large intestine.

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“…At day 18 the pigs (48.9 ± 2.3 kg BW) were euthanised for quantitative digesta collection from the stomach, proximal and distal half of the small intestine based on length (further mentioned as proximal or distal small intestine, respectively), caecum, and proximal and distal half of the colon based on length (further mentioned as proximal or distal colon, respectively). After digesta collection, digesta samples were cooled and stored at 4°C pending analyses for dynamic viscosity (analysed within 96 h) and water-binding capacity (WBC; analysed within 24 h), while remaining digesta were stored at −80°C and freeze-dried before analyses for chemical content (DM (19) , CP (N × 6.25, (20) ), starch (21) , reducing sugars (22) , titanium (23) and chromium ( (24) , after sample preparation by Williams et al (25) ). Water-binding capacity of digesta was measured using centrifugal force.…”

Section: Sample Collection and Chemical Analysismentioning

confidence: 99%

“…During the frequent feeding period, the daily feed allowance was divided in six equal portions. On days 16 and 17, the pigs received (22) from day 8 onwards, and Cr-EDTA (23) as the indigestible soluble marker from day 16 onwards. Diets were fed as mash and mixed with water (1:2.5, w/w) in the feed trough.…”

Section: Diets and Feedingmentioning

confidence: 99%

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Modelling digestion kinetics in pigs : Predicting nutrient absorption based on diet and ingredient properties

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Role of dietary fibre source and meal size on the ileal transit of digesta in growing pigs

Cited by 16 publications

References 12 publications

Review: Effects of fibre, grain starch digestion rate and the ileal brake on voluntary feed intake in pigs

Review: Effects of fibre, grain starch digestion rate and the ileal brake on voluntary feed intake in pigs

Evaluation of gastrointestinal transit in rats fed dietary fibres differing in their susceptibility to large intestine fermentation

Modelling digestion kinetics in pigs : Predicting nutrient absorption based on diet and ingredient properties

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