Type of sample | Manure | Silage | ||||
---|---|---|---|---|---|---|
Farm | No. of examined samples | No. of samples that yielded plaques | No. of examined samples | No. of samples that yielded Plaques | ||
By Direct Isolation | By Enrichment Method | By Direct Isolation | By Enrichment Method | |||
Farm I | 15 | 0 | 0 | 15 | 0 | 0 |
Farm II | 9 | 0 | 1 | 9 | 1 | 2 |
Farm III | 12 | 0 | 1 | 12 | 0 | 1 |
Total | 36 | 0 | 2 | 36 | 1 | 3 |