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Table 1 Chemical composition and epiphytic microbial populations of fresh napiergrass at two harvest dates

From: Clean recovery and recycling of seasonal surplus forage grass by microbial driven anaerobic fermentation: a case study of napiergrass

Harvest date

Early

Late

SEME

P value

ItemsC and treatmentsD

NI

NII

pH

5.91

5.88

0.038

0.740

DM (g/kg FM)

242B

282A

9.518

0.003

WSC (g/kg DM)

64.5B

40.1A

5.578

0.001

BC (mEq/kg DM)

61.2A

51.8B

2.302

0.011

NDF (g/kg DM)

656B

691A

8.422

0.007

ADF (g/kg DM)

376B

418A

10.87

0.027

CP (g/kg DM)

46.8A

31.9B

3.427

0.001

LAB (Log10 CFU/g FM)

5.11B

3.92A

0.301

0.019

Aerobic bacteria (Log10 CFU/g FM)

6.22B

9.58A

0.758

< 0.001

Yeasts (Log10 CFU/g FM)

3.77B

4.41A

0.161

0.018

Molds (Log10 CFU/g FM)

3.53

4.06

0.181

0.157

Enterobacteria (Log10 CFU/g FM)

8.31A

6.31B

0.451

< 0.001

  1. A−BMeans with different uppercase in the same row differ at p < 0.05
  2. CDM dry matter, FM fresh material, WSC water-soluble carbohydrates, BC buffering capacity, NDF neutral detergent fiber, ADF acid detergent fiber, CP crude protein, LAB lactic acid bacteria, CFU colony-forming units
  3. DNI napiergrass harvested at the early vegetative stage, NII napiergrass harvested at the late vegetative stage
  4. ESEM standard error of means