Table 2.
Number of cattle on feed and percentage of cattle on feed inventory affected by BRD, by category of cattle and scenario.
| Scenario/year | BRD baseline scenario 2011 | BRD baseline scenario 2011 | BRD reduction scenario Quarter 4 2017 |
|---|---|---|---|
| Category of cattle | Percentage of inventorya | Number of headb | Percentage of inventorya |
| Cattle on feed in affected feedlots | 100.00 | 11,703,050 | 100.00 |
| Cattle not affected by BRD | 78.80 | 9,222,003 | 89.40 |
| Cattle affected by BRD that did not receive first treatment | 2.20 | 258,029 | 1.10 |
| Cattle affected by BRD that received first treatment | 19.00 | 2,223,580 | 9.50 |
| Cattle affected by BRD that responded to first treatment | 15.52 | 1,816,664 | 7.76 |
| Cattle affected by BRD that received first treatment but were diagnosed as chronicc | 0.44 | 51,142 | 0.22 |
| Cattle affected by BRD that received first treatment but died | 0.76 | 88,943 | 0.38 |
| Cattle affected by BRD that received first treatment and second treatment | 2.83 | 331,313 | 1.42 |
| Cattle affected by BRD that responded to second treatment | 1.79 | 209,059 | 0.89 |
| Cattle affected by BRD that received second treatment but were diagnosed as chronic | 0.17 | 20,210 | 0.09 |
| Cattle affected by BRD that received second treatment but died | 0.38 | 44,065 | 0.19 |
| Cattle affected by BRD that received second treatment but no information is available | 0.16 | 18,222 | 0.08 |
| Cattle affected by BRD that received third treatment | 0.34 | 39,758 | 0.17 |
| Cattle affected by BRD that responded to third treatment | 0.13 | 15,068 | 0.06 |
| Cattle affected by BRD that received third treatment but were diagnosed as chronic | 0.08 | 8,786 | 0.04 |
| Cattle affected by BRD that received third treatment but died | 0.10 | 12,126 | 0.05 |
| Cattle affected by BRD that received third treatment but no information is available | 0.03 | 3,777 | 0.02 |
aMay not add to 100% due to multiple responses or unspecified.
bMay not add to total number of head due to percentage not adding to 100.
cCattle shipped for slaughter prior to reaching normal slaughter weight.
Sources: NASS, NAHMS Beef Feedlot 2011 Study, and Paarlberg et al. (27).
BRD, bovine respiratory disease; NAHMS, National Animal Health Monitoring System; NASS, National Agricultural Statistical Service.