Table 1 Age and breed of the cows studied on a closed dairy farm in Maffra, Victoria
From: Oriental theileriosis in dairy cows causes a significant milk production loss
Bleed | Date of collection | Number of cows bled | Number of cows with demographic data | Age (years) % (proportion) | Breed % (proportion) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
|  |  |  |  | ≤ 2 | 3-5 | ≥ 6 | Jersey × Friesian | Friesian | Jersey | Other cross-bred |
1 | November 2012 | 662 | 603 | 16.8 (101/603) | 51.2 (309/603) | 32.0 (193/603) | 53.2 (321/603) | 16.4 (99/603) | 1.7 (10/603) | 28.7 (173/603) |
2 | March 2013 | 220 | 189 | 18.5 (35/189) | 51.3 (97/189) | 30.2 (57/189) | 53.4 (101/189) | 17.5 (33/189) | 1.6 (3/189) | 27.5 (52/189) |