Table 1. Literature references on effects of BRD on cattle farms production performances.
Affected parameter | Stage of infection | Stage affected by change in production performances | Reference and Statistical significance of the observed effect | |
---|---|---|---|---|
Significant | Not significant | |||
Mortality rate | Dairy calf | Dairy calf | [22–24] | - |
Beef calf | Beef calf | [14, 23, 24] | - | |
Veal calf | Veal calf | [21, 24] | - | |
Feedlot cattle | Feedlot cattle | [20, 24–30] | - | |
ADG | Dairy calf | Dairy calf | [2, 31, 32] | [22] |
Beef calf | Beef calf | [33–35] | - | |
Veal calf | Veal calf | [36, 37] | [38] | |
Calf | Feedlot cattle | - | [39] | |
Feedlot cattle | [20, 25, 27–29, 40–51] | - | ||
Carcass quality | Feedlot cattle | Feedlot cattle | [20, 25, 28, 29, 43, 47–49, 52, 53] | - |
Veal calf | Veal calf | [37] | - | |
Age at first calving | Female calf | Heifer between weaning and calving | [2, 54–56] | [57, 58] |
Risk of death before first calving | [2, 57, 59] | [58, 60] | ||
Milk yield/ lactation | Female calf | Breeding female (cow) | [59] | [2, 56, 58, 61] |
Somatic Cell Count | - | [56] | ||
Survival after calving/Number of lactations | [56, 59] | [2, 62] | ||
Parturition rate | - | [58, 59] | ||
Risk of dystocia at calving | [2, 55] | - | ||
Risk of abortion | - | [58] |