Table 12.
In-feed ionophore use, by placement cohorta and ionophore typeb, expressed in number of animal daily doses (nADD), cattle placed 2008–2012.
| Placement cohort | |||||
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | Total | |
| Cattle at risk | n = 717,176 | n = 670,066 | n = 648,916 | n = 578,924 | n = 2,615,082 |
| nADD, NO. (NO./100,000 CATTLE AT RISK) | |||||
| MON | 69,129,832 (9,639,173) | 64,538,569 (9,631,673) | 63,584,520 (9,798,575) | 57,007,350 (9,847,122) | 254,260,271 (9,722,841) |
| LAS | 0 | 0 | 0 | 92,337 (15,950) | 92,337 (3,531) |
| ALL | 69,129,832 (9,639,173) | 64,538,569 (9,631,673) | 63,584,520 (9,798,575) | 57,099,687 (9,863,071) | 254,352,608 (9,726,372) |
The nADD is presented at the top of the cell with the nADD/100,000 cattle presented at the bottom of the cell in parentheses.
a
Placement cohort comprised of cattle placed in the feedlot between 1 November and 31 October of consecutive years.
b
MON, monensin; LAS, lasalocid; ALL, all ionophores.