Reproductive traits | Mean ± SE | Sig | ||
Overall city | Private farms | Governmental farm | ||
Services per conception (t) | 2.08 ± 0.02 | 2.14 ± 0.17 | 1.98 ± 0.11 | ** |
Calving to first heat interval (d) | 54.82 ± 2.06 | 53.69 ± 5.74 | 57.35 ± 7.96 | * |
Calving to first service interval (d) | 89.64 ± 1.22 | 89.10 ± 3 | 91.03 ± 8.26 | NS |
Calving to conception (d) | 115.96 ± 3.18 | 116.72 ± 9.44 | 114.27 ± 13.51 | * |
Lactation length (d) | 317.04 ± 5.11 | 316 ± 12.33 | 322.54 ± 9.1 | * |
Dry period (d) | 80.2 ± 4.14 | 81.64 ± 15.07 | 75.42 ± 10.99 | ** |
Calving interval (d) | 398.55 ± 4.61 | 399.04 ± 8.17 | 396.91 ± 14.53 | NS |