Skip to main content
. 2021 Mar 26;12:655095. doi: 10.3389/fmicb.2021.655095

TABLE 3.

Dry matter (DM, g/kg) and microbial counts (log10 colony-forming units/g fresh weight) of whole-plant corn silage during the intense fermentation phase.

Items CK CSL ESL SEM P value Interaction
T A T × A
DM A 385 369ab 372b 5.1200 0.1141 *** *
3 h 386 375a 379ab 6.1616 0.4881
5 h 392A 359abB 377abA 4.8634 0.0035
10 h 388A 348bB 380abA 3.3344 <0.0001
24 h 391A 365abB 391aA 4.6015 0.0048
2 days 379 374a 375ab 3.5375 0.5541
3 days 382 371ab 379ab 4.6533 0.2643
SEM 4.2870 5.8195 3.7257
P value 0.3695 0.0420 0.0573
pH A 6.14aA 6.03aAB 5.94bB 0.0340 0.0080 *** *** ***
3 h 5.95bB 5.94bB 6.02aA 0.0129 0.0036
5 h 5.58c 5.63c 5.53c 0.0235 0.0550
10 h 5.11dA 5.10dA 4.89dB 0.0463 0.0135
24 h 4.63eA 4.53eB 4.58eAB 0.0178 0.0137
2 d 4.25fA 4.04fC 4.14fB 0.0090 <0.0001
3 d 4.01gA 3.83gB 3.86gB 0.0109 <0.0001
SEM 0.0243 0.0275 0.0244
P value <0.0001 <0.0001 <0.0001
Lactic acid bacteria A 6.59d 6.68d 6.55d 0.1023 0.6735 *** *** ***
3 h 6.78dB 7.24cA 7.30cA 0.1039 0.0123
5 h 8.35cB 8.76bA 9.00bA 0.0924 0.0024
10 h 8.70bB 9.37aA 9.41aA 0.0530 <0.0001
24 h 9.24aB 9.44aA 9.57aA 0.0488 0.0028
2 days 9.26aB 9.41aA 9.44aA 0.0454 0.0448
3 days 9.26a 9.52a 9.46a 0.0700 0.0597
SEM 0.0744 0.0797 0.0780
P value <0.0001 <0.0001 <0.0001
Yeast A 6.90f 7.05d 6.90d 0.1098 0.5425 *** *** ***
3 h 6.84f 7.00d 6.78d 0.0920 0.2630
5 h 7.17eB 7.77cA 7.38cB 0.0996 0.0065
10 h 7.63dB 8.24bA 8.15bA 0.0734 0.0005
24 h 8.10cC 8.27bB 8.42aA 0.0444 0.0022
2 days 8.36bB 8.42bA 8.43aA 0.0120 0.0053
3 days 8.62aC 8.78aA 8.68aB 0.0097 <0.0001
SEM 0.0776 0.0659 0.0770
P value <0.0001 <0.0001 <0.0001
Coliforms A 7.22a 7.42a 7.53a 0.0751 0.0504 ***
3 h 7.54a 7.37a 7.64a 0.1017 0.2256
5 h 7.39a 7.49a 7.61a 0.0775 0.1830
10 h 7.71a 7.73a 7.87a 0.0628 0.1986
24 h 7.65aA 7.42aB 7.69aA 0.0603 0.0223
2 days 5.77bA 4.31bB 5.79bA 0.0954 <0.0001
3 days 3.23c 3.37b 2.67c 0.7648 0.7929
SEM 0.1781 0.4451 0.1935
P value <0.0001 <0.0001 <0.0001
Bacteria A 7.61f 8.28c 7.86e 0.2377 0.1853 *** *** ***
3 h 7.70ef 7.80d 7.84e 0.0526 0.2051
5 h 7.88eB 8.70bcA 8.77dA 0.0614 <0.0001
10 h 8.27dB 8.91abA 8.97cA 0.0285 <0.0001
24 h 8.94c 9.14ab 9.21b 0.0920 0.1559
2 days 9.19bB 9.40aA 9.47aA 0.0524 0.0112
3 days 9.39a 9.45a 9.51a 0.0796 0.5857
SEM 0.0639 0.1621 0.0673
P value <0.0001 <0.0001 <0.0001

Values with different lowercase letters (a, b,… g) indicate significant differences among anaerobic state, 3 h, 5 h, 10 h, 24 h, 2 days, and 3 days after ensiling of each treatment. Values with different uppercase letters (A, B, and C) indicate significant differences among treatments on the same time during the intense fermentation phase. CK, whole-plant corn silage without any lactic acid bacterial suspensions; CSL, whole-plant corn silage treated with lactic acid bacterial suspensions prepared from whole-plant corn silage; ESL, whole-plant corn silage treated with lactic acid bacterial suspensions prepared from Elymus sibiricus silage. A, anaerobic state. SEM, standard error of means. *, P < 0.05; ***, P < 0.001.