Table 7.
Numbers of cows that were removed from the herd by sire breed and reason for removal1,2
| Sire breed | Reproductive failure | Udder | Lameness3 | Prolapse | Died | Other4 | Total |
|---|---|---|---|---|---|---|---|
| Brahman | 46 | 1 | 3 | 1 | 4 | 0 | 55 |
| Boran | 24 | 2 | 4 | 2 | 3 | 1 | 36 |
| Tuli | 40 | 0 | 2 | 0 | 7 | 3 | 52 |
| Total removed | 110 | 3 | 9 | 3 | 14 | 4 | 143 |
1The criterion for removal of cows from the project was 2 failures to wean a calf before 14 yr of age, and 1 failure at or after that age.
2Counts did not differ from χ2 expectation (P > 0.05).
3Three of these cows (1 Boran-, 1 Brahman-, and 1 Tuli-sired cow) were also open but classified as removed because of lameness as that was the primary reason for leaving the herd.
4All in this category except for a single Tuli-sired cow with a jaw abnormality were associated with eye cancer.