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The
"easy" Bolus

Active D Bolus - UNterstützung bei Kalziummangel

Active D Bolus – Support for calcium deficiency after calving.
One bolus is enough!

The Challenge:
Calcium deficiency after calving

Dairy cows can suffer from severe calcium deficiency just before and after calving. High-producing dairy cows, especially those in their 2nd or 3rd lactation, are at high risk of metabolic problems related to calcium.

Prevent calcium deficit with just one bolus!
It's easy.

Active vitamin D supports calcium transport by targeted opening of calcium channels, which has a positive effect on the well-being of the cow during the critical phase after calving. Active vitamin D can prevent typical metabolic disorders such as hypocalcemia after calving, keeping your cows healthy and productive.
 
A single Active D Bolus given immediately after calving provides the cow with additional vitamin D during the first week of lactation, helping to counteract calcium deficiency.  The Active D Bolus provides plant-based, accurately dosed vitamin D supplementation with easy application using the appropriate applicator.

Active D Bolus - Einfach für Sie und Ihre Tiere

Easy –
for you and your animals

The Active D Bolus is a plant-based feed supplement that supports the cow with just one administration after calving as it enters the lactation period.

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Your advantages:

  • Less effort: one bolus only

  • Mobilizes calcium transport by opening calcium channels

  • Can prevent typical metabolic disorders such as hypocalcemia

  • Can be administered before or after calving

  • Innovative plant-based product

„A clever way to counteract the drop in blood calcium levels after calving with minimal effort“

Dr. Astrid Brandl, veterinarian and farm manager of Timmering-Brandl Milch KG, Germany 2023

Learn more about the Active D Bolus and where to purchase?

Please contact our experts.
Use the form below.

Active D Bolus info request

Phytobiotics – Based on science

Phytobiotics Futterzusatzstoffe GmbH is a global leading company in the production and distribution of high-quality natural feed additives and organic trace elements. Our focus is on solutions for modern livestock farming.


For over 20 years, our team of scientists, veterinarians, and nutritionists has worked hand in hand with partners to develop concepts that meet the individual needs of our customers. We offer sustainable, scientifically proven solutions and consulting services that increase the productivity of your farm.

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