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Number and percentage of resistant animals and the extent of intracellular growth of B. abortusin vitro after 24 h (rSOB24h) for each cross indicated.
| Mating cross | Number of animals | % | rSOB24h |
| R X R | 8 | 38.1 | 7.72 ± 2.89 |
| R X R | 13 | 62.9 | 20.78 ± 9.32 |
| R X S | 6 | 42.9 | 5.79 ± 3.23 |
| R X S | 8 | 57.1 | 22.71 ± 6.75 |
| S X R | 4 | 44.4 | 6.70 ± 3.26 |
| S X R | 5 | 66.6 | 16.91 ± 4.40 |
| S X S | 6 | 25.0 | 8.84 ± 1.56 |
| S X S | 18 | 75.0 | 22.64 ± 9.79 |
The values are the mean ± SD. R = resistant, S = susceptible.
