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Table 2 Faecal characteristics and SCFA and NH3 excretion in dogs fed the SF and IF diet

From: Fermentable soluble fibres spare amino acids in healthy dogs fed a low-protein diet

  SF Diet IF Diet P-value
Mean SD Mean SD Group Diet
Total faecal production (g FM/day) 81 8 61 17 NS 0.02
Faecal consistency (1–7)a 2 0.5 2 0.2 NS NS
Faecal pH 5.7 0.2 6.5 0.6 NS <0.01
Faecal DM (%) 32.8 1.8 43.2 4.5 NS <0.01
Acetic acid (mmol/day) 8.12 1.07 4.99 1.94 NS <0.01
Propionic acid (mmol/day) 4.90 1.00 2.58 1.11 NS <0.01
Butyric acid (mmol/day) 1.14 0.62 0.90 0.47 NS NS
Isobutyric acid (mmol/day) 0.10 0.02 0.10 0.05 0.03 NS
Isovaleric acid (mmol/day) 0.35 0.13 0.35 0.16 NS NS
Valeric acid (mmol/day) 0.03 0.03 0.03 0.01 NS NS
Total SCFA (mmol/day)b 14.6 2.0 8.96 3.5 NS 0.02
Faecal NH3 (mg/day) 30.7 9.0 31.8 9.0 NS NS
  1. FM, fresh matter; NS, not significant
  2. aPurina faecal scoring system (1: very hard and dry; 2: firm, but not hard; 3: log-like; 4: very moist; 5: very moist but has distinct shape; 6: has texture, but no defined shape; 7: watery, no texture, flat)
  3. bTotal SCFA = acetic + propionic + butyric + isobutyric + isovaleric + valeric acids