## 3 Results
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{2}{c}{**MB**} & \multicolumn{2}{c}{**GS**} \\ \hline
**Family** & **Mean (\%)** & **std. dev. (\%)** & **Mean (\%)** & **std. dev. (\%)** & \(p\) **Values** \\ \hline _Coriobacteriaceae_ & 3.502 & 2.839 & 2.471 & 0.991 & 0.222 \\ _Microbacteriaceae_ & 0.030 & 0.029 & 0.587 & 0.907 & 0.067 \\ _Micrococcaceae_ & 0.002 & 0.002 & 0.117 & 0.377 & 0.333 \\ _Cornetheticaretica_ & 0.002 & 0.001 & 0.042 & 0.104 & 0.222 \\ _Prevotellaceae_ & 11.113 & 9.461 & 6.368 & 6.892 & 0.160 \\ _Bacteroidaceae_ & 10.010 & 7.919 & 3.891 & 5.036 & 0.027 \\ _Porphylromondaceae_ & 0.165 & 0.209 & 0.448 & 0.315 & 0.019 \\ _Costiridiaceae_ & 15.448 & 7.344 & 14.324 & 4.907 & 0.651 \\ _Ruminococcaceae_ & 8.874 & 2.640 & 6.695 & 2.128 & 0.031 \\ _Erysipelotrichaceae_ & 8.471 & 7.689 & 4.664 & 3.423 & 0.113 \\ _Veillonellaceae_ & 3.811 & 3.828 & 0.908 & 0.560 & 0.014 \\ _Lachospiraceae_ & 3.810 & 2.160 & 2.799 & 1.241 & 0.155 \\ _Eubacteriaaceae_ & 1.990 & 1.349 & 1.766 & 1.604 & 0.714 \\ _Acidaminococcaceae_ & 1.628 & 2.117 & 1.938 & 1.537 & 0.675 \\ _Striptococcaceae_ & 0.608 & 1.407 & 3.440 & 2.936 & 0.010 \\ _Pauithscillaceae_ & 0.525 & 0.472 & 0.640 & 0.371 & 0.501 \\ _Lactobacillusaceae_ & 0.417 & 0.442 & 8.616 & 7.893 & 0.005 \\ _Bacillusaceae_ & 0.281 & 0.383 & 0.222 & 0.085 & 0.584 \\ _Peptostreptococcaceae_ & 0.215 & 0.127 & 0.148 & 0.063 & 0.097 \\ _Aerococcusaceae_ & 0.132 & 0.182 & 0.640 & 0.344 & 0.000 \\ _Peptococcaceae_ & 0.091 & 0.069 & 0.334 & 0.201 & 0.002 \\ _Entrepreneur_ & 0.015 & 0.035 & 0.661 & 0.368 & 0.000 \\ _Thermoactinomyctaceae_ & 0.010 & 0.010 & 0.136 & 0.248 & 0.120 \\ _Leuconstoaceae_ & 0.008 & 0.017 & 0.131 & 0.152 & 0.021 \\ _Clostiriiales Family XII. Incrta_ & 0.008 & 0.020 & 0.177 & 0.116 & 0.001 \\ _Sedis_ & & & & & \\ _Listeriaceae_ & 0.001 & 0.001 & 0.180 & 0.577 & 0.324 \\ _Fusobacteriaaceae_ & 16.599 & 9.218 & 11.296 & 6.569 & 0.106 \\ _Helicobacteraceae_ & 0.124 & 0.217 & 0.003 & 0.002 & 0.056 \\ _Desulfohalbiaceae_ & 0.110 & 0.147 & 0.950 & 0.503 & 0.000 \\ _Succinivbironaceae_ & 0.090 & 0.155 & 0.223 & 0.272 & 0.168 \\ _Enterobacteriaceae_ & 0.028 & 0.035 & 0.395 & 0.289 & 0.001 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Mean relative frequency of abundance (%) and corresponding standard deviation (SD) (%) of the families identified in the caeca of mixed breeds (MB) and German Shepherd (GS) dogs. The species indicated are those showing a mean relative frequency of abundance \(\geq\) 0.1% in at least one group. \(p\) values in bold are those who are significantly different. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{2}{c}{**MB**} & \multicolumn{2}{c}{**GS**} \\ \hline
**Order** & **Mean (\%)** & **std. dev. (\%)** & **Mean (\%)** & **std. dev. (\%)** & \(p\) **Values** \\ \hline _Coriobacteriales_ & 3.502 & 2.839 & 2.471 & 0.991 & 0.222 \\ _Actinomyctales_ & 0.081 & 0.044 & 0.946 & 1.758 & 0.131 \\ _Bacteroidales_ & 21.298 & 11.157 & 10.724 & 10.603 & 0.023 \\ _Clostiriales_ & 39.302 & 11.187 & 33.404 & 8.453 & 0.146 \\ _Lactobacillus_ & 1.182 & 1.403 & 13.530 & 7.905 & 0.000 \\ _Erysipelotrichales_ & 8.471 & 7.689 & 4.664 & 3.423 & 0.113 \\ _Selenomonadales_ & 5.439 & 3.881 & 2.846 & 1.723 & 0.037 \\ _Bacillus_ & 0.837 & 0.635 & 1.231 & 0.682 & 0.153 \\ _Fusobacteriales_ & 16.599 & 9.218 & 11.296 & 6.569 & 0.106 \\ _Desulfohybridiales_ & 0.111 & 0.147 & 0.952 & 0.503 & 0.000 \\ _Enterobacteriales_ & 0.028 & 0.035 & 0.395 & 0.289 & 0.001 \\ _Aeromonadales_ & 0.121 & 0.164 & 0.226 & 0.273 & 0.273 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Mean relative frequency of abundance (%) and corresponding standard deviation (SD) (%) of the orders identified in the caeca of mixed breeds (MB) and German Shepherd (GS) dogs. The species indicated are those showing a mean relative frequency of abundance \(\geq\) 0.1% in at least one group. \(p\) values in bold are those significantly different.