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Table 2 Effects of different additive treatments and ensiling durations on the pH value, NDF and ADF contents (g kg−1 DM) of whole crop maize silage

From: Effects of Piromyces sp. CN6 CGMCC 14449 on fermentation quality, nutrient composition and the in vitro degradation rate of whole crop maize silage

Ensiling duration

Treatment

pH

NDF

ADF

10 days

CK

4.31a

554.1a

318.8a

FU

4.24a

539.0b

301.8b

EN

4.08b

540.1b

298.2b

30 days

CK

3.79a

546.6a

301.1a

FU

3.64b

509.7b

283.4b

EN

3.62b

517.7b

289.0b

60 days

CK

3.72

543.3a

309.2a

FU

3.65

498.3b

288.7b

EN

3.68

516.8b

282.6b

SEM

 

0.04

3.3

2.3

Main effect means

    

Ensiling duration

10 days

4.21a

544.4a

306.3a

30 days

3.69b

524.9b

291.2b

60 days

3.68b

519.5b

293.5b

Treatment

CK

3.94

548.0a

309.8a

FU

3.84

515.7b

291.3b

EN

3.79

524.9b

290.0b

Source of variation P value

    

Ensiling duration

<0.001

<0.001

0.001

Treatment

<0.001

<0.001

<0.001

D*T

0.034

0.196

0.646

  1. CK: control; FU: fungus addition; EN: compound enzyme addition. NDF: neutral detergent fibre; ADF: acid detergent fibre; T: effect of treatment; D: effect of ensiling duration; SEM: standard error of the means
  2. Mean values with different superscript letters in the same column differ significantly (P < 0.05). The interaction between treatment and ensiling duration is significant (P < 0.05), so main effect means are not present. Because of no significant interactions on NDF and ADF contents (P > 0.05), the main effect means are presented, and the differences among the means were examined