| GM | Gut Microbiota |
| GZn | Zinc gluconate |
| OTU | operational taxonomic unit |
| PCoA | principal coordinates analysis |
| LDA | Linear discriminant analysis |
| NMDS | the Non-metric Multidimensional Scaling |
| WG | weight gain |
| SCFAs | short-chain fatty acids |
| TCA | tricarboxylic acid |
| GM | Gut Microbiota |
| GZn | Zinc gluconate |
| OTU | operational taxonomic unit |
| PCoA | principal coordinates analysis |
| LDA | Linear discriminant analysis |
| NMDS | the Non-metric Multidimensional Scaling |
| WG | weight gain |
| SCFAs | short-chain fatty acids |
| TCA | tricarboxylic acid |