Table 2.
Item | SUPP | CON | SEM | P-value |
---|---|---|---|---|
Days in milk (d 0), d | 87.6 | 84.9 | 5.3 | 0.71 |
BW, kg | ||||
Initial (average d –7 and 0) | 583 | 582 | 15 | 0.94 |
Final (d 84) | 604 | 604 | 15 | 0.99 |
BW change | 21.2 | 23.0 | 6.9 | 0.85 |
BCSa | ||||
Initial (average d –7 and 0) | 2.96 | 3.13 | 0.08 | 0.18 |
Final (d 84) | 3.18 | 3.21 | 0.11 | 0.87 |
BCS change | 0.22 | 0.07 | 0.05 | 0.05 |
Incidence of mastitisb | ||||
Cows diagnosed with mastitis, % | 17.6 | 27.8 | 10.3 | 0.49 |
Total mastitis per cow in trialc | 0.35 | 0.33 | 0.17 | 0.94 |
aAccording to Wildman et al. (1982).
bCows were screened for mastitis prior to every milking (d –7 to 84) using the strip cup method, whereas clinical mastitis was defined as a change in milk secretion (e.g., flakes) and external evidence of udder inflammation (e.g., hardening and redness) as in Ebert et al. (2017).
cTotal cases of mastitis divided by number of cows within each treatment group.