## 3 Results
### Fermentation Quality of Sweet Sorghum and Napier Grass
According to Figure 5, the LAB incubated with Napier grass resulted in significant (\(p<0.05\)) increase in LA and lower the concentrations of AA, PA and BA. The higher LA produced by HY3 then followed by HY1 and HY2 treatment on all opening times. The concentration of LA and AA in Napier grass was lower compared to that of sweet sorghum. Concerning to silage NH\({}_{3}\)-N, in both sweet sorghum and Napier grass the isolated strains significantly reduced (\(p<0.05\)) NH3-N compared to untreated silages. On 5 and 90 days of ensiling the strain HY3 produced lower NH\({}_{3}\)-N in both grasses (Tables 3 and 4). Moreover, the NH\({}_{3}\)-N content increased steadily with extending the ensiling time for both grasses. Concerning the DM and according to Tables 2 and 3, the LAB treatments in both grasses did not show any significant difference into the control in silages. Figure 4: Effect of LAB inoculants on organic on sweet sorghum silage (**A**) lactic acid, (**B**) acetic acid, (**C**) butyric acid, (**D**) propionic acid during different opening times. \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Parameter**} & \multirow{2}{*}{**Treatments**} & \multicolumn{2}{c}{**Days**} & \multirow{2}{*}{**ESM**} & \multicolumn{3}{c}{**Significance**} \\ \cline{3-8}  & & **5** & **30** & **90** & & **Day** & **Treat** & **Day *Treat** \\ \hline \multirow{6}{*}{DM g/kg} & C & 231\({}^{\rm{AA}}\) & 231\({}^{\rm{AA}}\) & 231\({}^{\rm{AA}}\) & 210\({}^{\rm{AA}}\) & & & \\  & MTD/1 & 225\({}^{\rm{AA}}\) & 230\({}^{\rm{AA}}\) & 217\({}^{\rm{AA}}\) & & & & \\  & HY1 & 224\({}^{\rm{AA}}\) & 227\({}^{\rm{AA}}\) & 229\({}^{\rm{AA}}\) & 1.63 & 0.178 & 0.028 & 0.379 \\  & HY2 & 228\({}^{\rm{AA}}\) & 235\({}^{\rm{AA}}\) & 228\({}^{\rm{AA}}\) & & & \\  & HY3 & 215\({}^{\rm{AA}}\) & 213\({}^{\rm{AA}}\) & 218\({}^{\rm{AA}}\) & & & \\  & C & 45.58 & 61.23 & 77.0\({}^{\rm{AA}}\) & & & \\  & MTD/1 & 40.48\({}^{\rm{AA}}\) & 54.3\({}^{\rm{AA}}\) & 69.78\({}^{\rm{AA}}\) & & & \\ \multirow{2}{*}{Ammonia-N g/kg} & HY1 & 35.28\({}^{\rm{AA}}\) & 49.78\({}^{\rm{AA}}\) & 59.58\({}^{\rm{AA}}\) & 2.31 & \textless{}0.0001 & 0.0004 & 0.124 \\  & HY2 & 37.58\({}^{\rm{AA}}\) & 47.4\({}^{\rm{AA}}\) & 54.98\({}^{\rm{AA}}\) & & & \\  & HY3 & 26.8\({}^{\rm{BA}}\) & 38.3\({}^{\rm{BA}}\) & 60.1\({}^{\rm{BA}}\) & & & \\  & C & 3.39\({}^{\rm{AA}}\) & 5.93\({}^{\rm{AB}}\) & ND & & & \\ \multirow{2}{*}{Lactic acid bacteria (log10 cfu/g)} & MTD/1 & 4.86\({}^{\rm{AA}}\) & ND & ND & & & \\  & HY1 & 6.74\({}^{\rm{AA}}\) & 6.25\({}^{\rm{AA}}\) & 5.60\({}^{\rm{AA}}\) & 0.46 & \textless{}0.0001 & 0.093 & \textless{}0.0001 \\  & HY2 & 2.08\({}^{\rm{AA}}\) & 3.66\({}^{\rm{AB}}\) & 0.33\({}^{\rm{BB}}\) & & & \\  & HY3 & 7.65\({}^{\rm{AA}}\) & 2.19\({}^{\rm{AB}}\) & 1.86\({}^{\rm{BA}}\) & & & \\  & C & 3.39\({}^{\rm{AA}}\) & 5.36\({}^{\rm{AA}}\) & 3.49\({}^{\rm{AA}}\) & & & \\ \multirow{2}{*}{Aerobic bacteria (log10 cfu/g)} & MTD/1 & 4.86\({}^{\rm{AA}}\) & ND & 2.66\({}^{\rm{AA}}\) & & & \\  & HY1 & ND & 2.89\({}^{\rm{BA}}\) & 1.33\({}^{\rm{AA}}\) & 0.37 & 0.041 & 0.549 & 0.007 \\  & HY2 & 2.08\({}^{\rm{AA}}\) & 5.14\({}^{\rm{AA}}\) & 1.33\({}^{\rm{AA}}\) & & & \\  & HY3 & 1.65\({}^{\rm{AA}}\) & 5.21\({}^{\rm{AA}}\) & 1.33\({}^{\rm{AA}}\) & & & \\  & C & 3.70\({}^{\rm{AA}}\) & 1.00\({}^{\rm{AA}}\) & 0.33\({}^{\rm{AB}}\) & & & \\  & MTD/1 & 1.15\({}^{\rm{AA}}\) & ND & ND & & & \\ \multirow{2}{*}{yeast (log10 cfu/g)} & HY1 & ND & ND & ND & 0.56 & 0.3 & 0.235 & 0.056 \\  & HY2 & 1.10\({}^{\rm{AA}}\) & ND & ND & & & \\ \multirow{2}{*}{Aerobic bacteria (log10 cfu/g)} & HY3 & ND & ND & ND & & & \\  & HY3 & ND & ND & ND & & & \\ \hline \end{tabular} Values with different superscripts differ significantly (\(p<0.05\)), values with the same superscripts means no significant difference (\(p<0.05\)). 1 DM, dry matter; 2 C, no additive control; MTD/1, _L plantarum, Ecosyl;_ HY1 _Lactobacillus plantarum;_ HY2 _Pedioccussicalicalic;_ HY3 _Palioccussicalic;_ 3 SEM, standard error of means; 4 ND not detected.  
\end{table}