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Table 1 Feline fecal characteristics and metabolite concentrations and apparent total tract nutrient digestibility of experimental diets

From: Dietary enrichment of resistant starches or fibers differentially alter the feline fecal microbiome and metabolite profile

 

Dietary treatment

SEM

P-value

 

ERS1

FPPB

iFPPB

Treatment

ERS vs. FPPB and iFPPB

Characteristics

      

pH

4.87a

5.63b

5.97b

0.12

< 0.0001

< 0.0001

Fecal score2

3.6b

3.2ab

2.7a

0.20

0.0001

0.0002

Fecal DM (%)

25.6a

28.2ab

31.6b

1.26

0.0008

0.0013

Digestibility

%

     

Dry matter

72.0a

78.4b

76.9b

1.380

< 0.01

< 0.01

Organic matter

73.8a

82.2b

81.4b

1.305

< 0.0001

< 0.0001

Crude protein

68.0a

80.3b

83.3b

1.295

< 0.0001

< 0.0001

Acid-hydrolyzed fat

87.7a

90.0b

91.4b

1.076

< 0.01

< 0.01

Total dietary fiber

30.4a

30.0a

39.3b

2.918

0.05

0.25

Energy

74.3a

83.1b

83.1b

1.270

< 0.0001

< 0.0001

Metabolites

µmol/g DM

   

Total SCFA

554.1

602.6

529.2

35.66

0.3583

0.7859

Acetate

290.0

353.0

329.1

23.36

0.1101

0.0498

Propionate

51.9a

125.1b

139.8b

6.69

< 0.0001

< 0.0001

Butyrate

212.2c

124.5b

60.3a

18.40

< 0.0001

< 0.0001

Total BCFA

36.3a

50.5b

41.0ab

3.77

0.0417

0.0478

Isobutyrate

1.9a

4.5b

5.8b

0.49

< 0.0001

< 0.0001

Isovalerate

3.7a

6.6b

8.5b

0.70

0.0002

0.0001

Valerate

30.7ab

39.5b

26.8a

3.36

0.0370

0.5508

Total phenols and indoles

0.05a

1.18b

1.42b

0.21

< 0.0001

< 0.0001

4-methylphenol

0.05a

0.54b

0.89b

0.11

< 0.0001

< 0.0001

Indole

0.00a

0.06ab

0.21b

0.05

0.0090

0.0254

Ammonia

65.1a

105.6b

127.3b

8.31

< 0.0001

< 0.0001

Fecal IgA, mg/g

16.8b

13.9b

7.9a

1.59

0.0002

0.0010

  1. 1Diets enriched in resistant starch (ERS), a fiber-prebiotic-probiotic blend (FPPB), or a fiber-prebiotic-probiotic blend + immuno-modulating ingredients (iFPPB).2Fecal score: 1 = hard, dry pellets; small hard mass; 2 = hard formed, dry stool; remains firm and soft; 3 = soft, formed and moist stool, retains shape; 4 = soft, unformed stool; assumes shape of container; 5 = watery, liquid that can be poured
  2. a,b Mean values within a row with unlike superscript letters differ (P < 0.05)