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Farmer Frank Jacobsen stands smiling in front of his black and tan cows. PerformaNat CalciumBolus experience.

Frank Jacobsen

Germany
Nordhackstedt
150 cows

We have a herd of 150 black and white cows on our farm with a milk yield of 10,500 kg.

How long have you been using the PerformaNat CalciumBolus? And why did you start using it?

I have been using the PerformaNat CalciumBolus for 4 years on the farm as part of my milk fever prophylaxis to rule out milk fever. The bolus was attractively priced compared to other products and other advantages, such as the gentle source of calcium, convinced me to stick with the bolus.

A close-up of a red-and-white Holstein cow with a yellow ear tag in a free-stall barn, with other black-and-white cattle in the background.

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