Table 3.
Least square means (SE) for average daily milk yield (kg) up to 305 DIM by BCS category at multiple time points (top) and by ∆BCS category at different periods (bottom) in primiparous cows. The full model for the repeated measures analysis included calving season and BCS1 as covariables. Different superscripts within columns indicate P < 0.05
Category of BCS at multiple time points | ||||||||
---|---|---|---|---|---|---|---|---|
Calving | 14 DIM | 21 DIM | Nadir | |||||
BCS category | LSM | SEM | LSM | SEM | LSM | SEM | LSM | SEM |
Q1 | 34.4ab | 0.014 | 34.8a | 0.014 | 35.2a | 0.014 | 35.8a | 0.014 |
Q2 | 34.2ab | 0.014 | 34.2b | 0.014 | 34.3b | 0.014 | 35.0b | 0.018 |
Q3 | 34.7a | 0.014 | 33.8b | 0.018 | 33.8b | 0.018 | 33.8c | 0.014 |
Q4 | 33.8b | 0.014 | 33.4b | 0.023 | 32.9c | 0.018 | 32.4d | 0.014 |
Time period between BCS assessments | ||||||||
---|---|---|---|---|---|---|---|---|
Calving to 7 DIM | Calving to 14 DIM | Calving to 21 DIM | Calving to nadir | |||||
∆BCS category | LSM | SEM | LSM | SEM | LSM | SEM | LSM | SEM |
Q1 | 34.2ab | 0.014 | 34.7a | 0.014 | 35.5a | 0.014 | 36.2a | 0.014 |
Q2 | 34.5ab | 0.014 | 34.5ab | 0.014 | 34.6b | 0.014 | 34.7b | 0.014 |
Q3 | 34.8a | 0.023 | 34.0bc | 0.018 | 33.7c | 0.014 | 33.7c | 0.018 |
Q4 | 33.9b | 0.014 | 33.4c | 0.014 | 33.0d | 0.014 | 32.4d | 0.014 |