Reference | Calves’ ages when tested | Age when group housed (A) | Age when group housed (B) |
---|---|---|---|
Abdelfattah et al. [14] | 3 days to 7 weeks | 2 to 3 days | 7 to 14 days |
Duve and Jensen [12] | 5 weeks | 1 day | 3 weeks |
Jensen and Larsen [13] | 6 weeks | 1 day | 2 weeks |
Bolt et al. [9] | 6 weeks | 5 days | 5 weeks |
Costa et al. [15] | 4 to 10 weeks | 6 days | 6 weeks |
Meagher et al. [16] | 7 weeks | 6 days | 6 weeks |
Rasmussen et al. [17] | 1 to 4 weeks | 6 days | 2 weeks |