The Measurement of Intestinal Transit Time

Smith, A. N.; Eastwood, M. A.

doi:10.1007/978-1-4615-9176-4_2

Cited by 6 publications

(3 citation statements)

References 40 publications

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“…Therefore, high levels of soluble fiber had been included in the commercial maintenance diet in an effort to increase fecal bulk and improve stool quality [Boniface, 1998], and these levels were continued in the experimental diet. Dietary fiber can have various effects on TT, depending both on the type of fiber and how the fiber was processed [Smith and Eastwood, 1980;Hillenmeier, 1995]. In many reports, insoluble fiber decreases TT, whereas soluble fiber tends to lengthen it [Burrows et al, 1982;Stevens et al, 1988].…”

Section: Discussionmentioning

confidence: 98%

Transit time and digestibility of two experimental diets in the maned wolf (Chrysocyon brachyurus) and domestic dog (Canis lupus)

Childs-Sanford

Angel

2006

Zoo Biology

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Recent research involving nutritional management of clinical disease secondary to cystinuria in captive maned wolves (Chrysocyon brachyurus) in the United States resulted in the production of a commercially manufactured maintenance diet and subsequently, a further modified experimental diet. These two diets differed only in their protein sources and sodium concentrations. The purpose of this study was to further investigate these diets by determining their digestibility and transit time in maned wolves, and also to compare these results to the digestibility and transit time of the diets in domestic dogs. The experiment consisted of two diets (maned wolf commercial maintenance diet and experimental diet) and two species (maned wolf and domestic dog [beagle]) arranged as a 2 Â 2 factorial design. For the transit time study, titanium dioxide (TiO 2 , 5 g/kg diet) was administered as a pulse dose and total collection of feces was carried out for 50 hr. There was no effect of diet or species on initial Ti recovery time (IRT), the amount of Ti recovered at IRT, or the time to reach 50% of Ti excretion in the feces. Maned wolves had lower total percent recovery (Po0.01) of Ti than dogs and shorter time to last recovery of Ti in the feces (Po0.05), however, marker excretion in the maned wolves may not have been complete. For the digestibility study, in which chromic oxide was used as a marker, fecal samples were collected on 2 consecutive days immediately after 12 days of being fed the diets and then analyzed for dry matter, energy, protein, and minerals. Crude protein, calcium, phosphorus, and zinc apparent digestibilities were unaffected by species or diet (P40.05). Apparent digestibility of dry matter (Po0.05) and energy (Po0.01) were higher in the experimental diet and in the dogs. Both dogs and maned wolves fed the maintenance diet exhibited a greater apparent retention of copper, iron, and magnesium (Po0.01). Dogs had a higher apparent retention of magnesium and sodium than the maned wolves.

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Section: Discussionmentioning

confidence: 98%

Transit time and digestibility of two experimental diets in the maned wolf (Chrysocyon brachyurus) and domestic dog (Canis lupus)

Childs-Sanford

Angel

2006

Zoo Biology

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“…Selected components of dietary fibre, generally referred to as water insoluble or stable components, clearly influence bowel function in ambulatory individuals who habitually consume low-fibre diets (Eastwood, Brydon & Tadesse, 1980;Kelsay, 1978;Slavin & Marlett, 1980;Smith & Eastwood, 1980). Increasing fibre intake eases defecation and increases wet and dry stool weights.…”

Section: Introductionmentioning

confidence: 99%

“…the time required for material to traverse the entire length ofthe gut. Consuming additional fibre tends to adjust both short and long transit times to about 3 to 4 days (Slavin & Marlett, 1980;Smith & Eastwood, 1980). The objective of this study was twofold.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Dietary Fibre in a Liquid Diet on Bowel Function of Mentally Retarded Individuals

Fischer

Adkins

Hall

et al. 1985

J intellect Disabil Res

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Rates of fermentation and short chain fatty acid and gas production of six starches by human faecal microbiota

1990

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Six starches (wheat, kidney bean, rice, corn, amylopectin and amylose) were fermented in vitro with mixed human faecal microbiota for 2,4,6,8,12 and 24 h to determine differences in rates of fermentation, and production of short chain fatty acid (SCFA) and gas. The starches difered significantly in rates of fermentation with wheat and rice starches being completely fermented by 12 h whereas all other starches had disappeared by 24 h. However, individual and total SCFA production g-' starch fermented did not differ with starch source. Gas production was significantly correlated with SCFA production (P<04001). Although all starches were 100 % fermentable by 24 h and produced similar types and quantities of SCFA, differences in the projiles, ie rates of gas and SCFA production, were observed.

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The Measurement of Intestinal Transit Time

Cited by 6 publications

References 40 publications

Transit time and digestibility of two experimental diets in the maned wolf (Chrysocyon brachyurus) and domestic dog (Canis lupus)

Transit time and digestibility of two experimental diets in the maned wolf (Chrysocyon brachyurus) and domestic dog (Canis lupus)

The Effects of Dietary Fibre in a Liquid Diet on Bowel Function of Mentally Retarded Individuals

Rates of fermentation and short chain fatty acid and gas production of six starches by human faecal microbiota

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