Table 1.
Pre- and post-sampling of milk from cows for farm C and D with subclinical mastitis (CMT+) and the cure rate following acoustic pulse technology (APT) or no treatment (NT).
Fig 1.
Dynamics of percent cows culled due to a subclinical mastitis event.
Left: Dynamics of percent cows culled due to a subclinical mastitis event (SCC >1 × 106 cell/mL) up to 90 d post-treatment; cows treated with acoustic pulse technology (APT; dotted line, n = 222) and not treated (solid line, n = 245). Right: Percentage of cows remaining in the herds on d 90 post-treatment (APT-treated, white bar; not treated, hashed bar).
Table 2.
Recovery of cows identified as subclinically infected and treated with acoustic pulse technology (APT) or not treated (NT) as a control.
Odds ratio (OR) and 95% CI are presented.
Fig 2.
The effect of APT treatment on recovery rate.
Percent cows with subclinical mastitis events (SCC >1 × 106 cells/mL) recovered up to 90 d post-treatment in cows treated with acoustic pulse technology (APT n = 222) vs. no treatment (NT; gray, n = 245). Recovery = percent cows reaching SCC below 2 different cutoff levels: <250 × 103 (empty bars) or <500 × 103 (gray bars).
Fig 3.
The effect of APT treatment on the changes in the volume of milk in the bulk milk tank (%) during the first 90 d post-treatment of cows with subclinical mastitis event.
Changes in total bulk milk (%) during the first 90 d post-treatment of cows with subclinical mastitis event (SCC >1 × 106 cell/mL); cows were treated with acoustic pulse technology (APT; □, n = 222), no treatment (NT; ◯, n = 245). The MY of each group on day of treatment was set at 100% and changes are presented as percent from time 0 level.
Table 3.
Summary of the economic benefits of using acoustic pulse technology (APT) on a dairy farm.