Dose-dependent effects of resistant potato starch in the diet on intestinal skatole formation and adipose tissue accumulation in the pig.
Resistant starch (RS) intake leads to a reduction of apoptosis in the pig colon and thus to a reduction of skatole in the carcass. To determine the minimal amount of RS which is required for the effect, diets with varying amounts (20, 30 and 40%) of RS were fed to barrows and gilts. Controls were fed instead with 55% pre-gelatinized starch. Skatole was determined after slaughter in distal colon content and in adipose tissue (flare fat and belly fat). Resistant starch led to a dose-dependent reduction of skatole in the gut content from 134 microg/g dry matter (controls) to 4.8 microg/g in the 40% group. Flare fat concentrations were decreased from 159 to 20 ng/g fat and belly fat concentrations from 64 to 16 ng/g fat. Strategies to improve sensorial quality by feeding RS continuously or for only 1 week prior to slaughter are discussed.
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FG Tierhaltung und Leistungsphysiologie, Institut Tierhaltung und Tierzüchtung, Universität Hohenheim, Garbenstr. 17, 70599 Stuttgart, Germany.
Claus
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D000273:Adipose Tissue / Q000187:drug effects* / Q000378:metabolism; D000821:Animal Feed; D000818:Animals; D003106:Colon / Q000187:drug effects* / Q000378:metabolism; D004040:Dietary Carbohydrates / Q000008:administration & dosage / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D012862:Skatole / Q000378:metabolism*; D011198:Solanum tuberosum; D013213:Starch / Q000008:administration & dosage / Q000494:pharmacology*; D013552:Swine; D014018:Tissue Distribution
D004040:Dietary Carbohydrates; D013213:Starch; D012862:Skatole