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Adaptation of healthy adult cats to select dietary fibers in vivo affects gas and short-chain fatty acid production from fiber fermentation in vitro
- Source :
- Journal of Animal Science. 89:3163-3169
- Publication Year :
- 2011
- Publisher :
- Oxford University Press (OUP), 2011.
-
Abstract
- Nine young adult (1.73 ± 0.03 yr) male cats were used to determine the effects of microbial adaptation to select dietary fiber sources on changes in pH in vitro and on total and hydrogen gas, short-chain fatty acid (SCFA), and branched-chain fatty acid (BCFA) production. Cats were adapted to diets containing 4% cellulose, fructooligosaccharides (FOS), or pectin for 30 d before fecal sampling. Each cat was used as a single donor, and fecal inoculum was reacted with each of the aforementioned fiber substrates. Adaptation to dietary FOS resulted in a greater change in pH when exposed to FOS than pectin (adaptation × substrate, P < 0.001). When exposed to the FOS substrate, adaptation to dietary FOS or pectin increased hydrogen gas production (adaptation × substrate, P = 0.021). Adaptation to dietary FOS increased acetate and total SCFA production when exposed to FOS substrate in vitro (adaptation × substrate, P = 0.001). When exposed to the FOS substrate, propionate production tended to increase with adaptation to dietary cellulose (adaptation × substrate, P = 0.060). The BCFA + valerate tended to decrease with adaptation to dietary FOS when exposed to FOS substrate in vitro (adaptation × substrate, P = 0.092). Fructooligosaccharides resulted in the greatest change in pH and production of total gas (P < 0.001), hydrogen gas (P < 0.001), acetate (P < 0.001), propionate (P < 0.001), butyrate (P < 0.001), total SCFA (P < 0.001), and total BCFA + valerate production (P < 0.001). Adaptation to the FOS or pectin diet increased production of hydrogen gas with FOS and pectin substrates. Adaptation to pectin increased (P = 0.033) total gas production with FOS and pectin substrates. Overall, adaptation to either FOS or pectin led to greater SCFA and gas production, but adaptation to FOS resulted in the greatest effect overall.
- Subjects :
- Dietary Fiber
Male
food.ingredient
Pectin
Oligosaccharides
Butyrate
Biology
Valerate
food
Genetics
Animals
Food science
Cellulose
chemistry.chemical_classification
Short-chain fatty acid
Fatty acid
Substrate (chemistry)
General Medicine
Fatty Acids, Volatile
Adaptation, Physiological
Animal Feed
Diet
Biochemistry
chemistry
Fermentation
Cats
Propionate
Pectins
Animal Nutritional Physiological Phenomena
Animal Science and Zoology
Food Science
Subjects
Details
- ISSN :
- 15253163 and 00218812
- Volume :
- 89
- Database :
- OpenAIRE
- Journal :
- Journal of Animal Science
- Accession number :
- edsair.doi.dedup.....ca04a9619370ffa366fa6c27783fa11f