StopLac
Facilitates abrupt dry-off by reducing milk production.
For cows, the transition can lead to stress and increased udder pressure, which in turn raises the risk of milk leakage and bacterial contamination.
AHV StopLac Tablet is specifically designed to support dairy cows during the dry-off period. Its mode of action is based on temporarily adjusting rumen fermentation.
By reducing milk production, the StopLac Tablet helps alleviate udder pressure, improving the cow’s comfort post dry-off. This promotes an optimal dry-off period and a better start of the new lactation.
Key benefits of StopLac
Temporarily reduces milk production
Less udder engorgement and milk leakage after dry-off
Improves udder and metabolic health during the entire transition period
Commercial
How To Use
Webinar For Veterinarians
Validation
Backed by Science, Trusted in the Field
AHV StopLac so far*:
*As of October 2025
Recent field trials in the USA including 2 farms and 404 cows (233 AHV, 171 Control) showed that cows receiving StopLac at dry-off had:
- 70% difference in milk leakage after dry-off
- 6.7 lbs difference per day in milk production (100DIM average)
- 47% difference in death losses (60DIM)
Compared to the control group.
For more information, contact your local farm advisor.
Visible Cow Comfort – StopLac In Action!
See the real difference StopLac makes just 12 hours after milking.
With AHV StopLac, you’re not just drying off cows, you’re improving their welfare, reducing stress, and setting them up for a healthier next lactation.
Dry Better with AHV
| Optimize the most important period for your cows – transition |
1x AHV StartLac or 2x Tablet
(repeat tablet after 12- 24 hours)
1x AHV Aspi Tablet
1x AHV Metri Tablet
Farmers about StopLac
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