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Table 2 Microbial effects of resistant starch (RS) in pig studies

From: Resistant starch: Implications of dietary inclusion on gut health and growth in pigs: a review

Test animalsa Types of RS Microbial effectsb References
Nursery pigs RPS (RS 14%) Increased colonic lactobacilli and Bacteroides [15]
Nursery pigs Purified corn starch (63% amylose) Increased cecal and colonic Bifidobacterium
Decreased Clostridium clusters IV and XIVa
Nursery pigs High amylose corn starch (85% amylose) Increased proximal colonic Lactobacilli and Bifidobacteria [47]
Growing pigs RS2 in corn, potato, barley, pea, tapioca Increased fecal lactobacilli and bifidobacteria (meta-analysis) [99]
Growing pigs High amylose corn and RPS (RS 11%) No significant changes in microbial composition [42]
Growing pigs Retrograded tapioca starch (RS 34%) Increased colonic Ruminococcus bromii, and bacterial group Clostridium cluster IV, IX, XV, XVI, and XVII
Decreased colonic Gammaproteobacteria
Growing pigs Retrograded tapioca starch (RS 33%) Increased Lachnospiraceae- and Ruminococcus-affiliated phylotypes [55]
Cannulated growing pigs Purified corn starch (63% amylose) Increased fecal Bifidobacterium [93]
Growing-finishing pigs Purified RPS (RS 13 to 15%) Increased Coprococcus, Ruminococcus, and Turicibacter
Decreased Sarcina and Clostridium
Gestating and lactating sows Pea starch (RS 5 to 9%) Increased Bifidobacterium and ratio of Firmicutes to Bacteroidetes [100]
Pregnant sows RPS (RS 5%) Increased fecal Clostridia [82]
  1. aBW of pigs at the start of the study: nursery pigs, 6 to 27 kg; growing pigs, 30 to 63 kg; finishing pigs, 70 kg and above.
  2. bMicrobial composition represented by relative abundance.