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. 2021 Apr 22;11:8686. doi: 10.1038/s41598-021-88082-1

Table 2.

Final (i.e., 168 h of aerobic incubation) chemical and microbial analyses of the two silages, not treated or treated with a biological additive.

Control Treated
23 ℃ 33 ℃ SEM P 23 ℃ 33 ℃ SEM P
Dry matter (g/kg WW) 405 411 2.9 NS 359 358 2.3 NS
pH 7.0 7.2 0.098 NS 6.88 6.84 0.200 NS
Lactic acid (g/kg DM) 6.21 4.13 0.149 ** 8.47 4.87 0.171 **
Relative loss of lactic acid (%) 87.9 92.0 0.41 ** 85.3 91.6 0.31 **
Acetic acid (g/kg DM) 5.24 3.27 0.154 ** 6.06 5.69 0.129 NS
Butyric acid (g/kg DM)  < 0.38  < 0.38 – –  < 0.38  < 0.38 – –
Water soluble carbohydrate (g/kg DM) 6.95 5.87 0.189 * 7.66 6.26 0.296 *
Ethanol (g/kg DM) 3.89 2.89 0.156 * 2.56 2.76 0.113 NS
Yeasts (log10 cfu/g WW) 5.83 7.79 0.290 ** 6.52 5.52 0.360 NS
Molds (log10 cfu/g WW)  < 2  < 2 – –  < 2  < 2 – –
Lactic acid bacteria (log10 cfu/g WW) 7.14 7.33 0.448 NS 8.28 8.64 0.212 NS
Total bacteria count (log10 cfu/g WW) 7.74 7.42 0.449 NS 8.31 8.51 0.264 NS

WW, wet weight; DM, dry matter; cfu, colony-forming units.

*, P < 0.05; **, P < 0.01; NS, P > 0.05.