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What is Herd Navigator? What benefits do I get? Which skills do I need and who will provide advice? Where can I buy it and who will be servicing? Which milk parameters are analysed? How can I manage reproduction? How can I manage udder health and feeding?

Why is progesterone the right hormone to measure?
Does progesterone reflect time of ovulation precise and better than the heat signs I can see on my cows?


Are my activity meters useless when I use Herd Navigator?

Can I quit pregnancy determination when I have progesterone measurements?


Why is progesterone the right hormone to measure?
Does progesterone reflect time of ovulation precise and better than the heat signs I can see on my cows?

Progesterone is a hormone produced within the ovary and reflects the reproductive cycle of the cow. The profile of the hormone is well described and therefore gives the best prediction of the time of ovulation.

Several studies show that visual detection of heat signs has become less easy in the high yielding dairy cow.

They express signs of oestrus for a shorter period of time and several management factors influence the cows’ ability to express signs of oestrus.´

Therefore, using in-line progesterone as the tool to catch the heats is a natural choice.


Are my activity meters useless when I use Herd Navigator?

No, even if Progesterone, the parameter used in Herd Navigator, is the “gold standard” for heat detection and other reproductive disorders, activity meters are still a valuable tool to detect heat in heifers.

In addition, the activity meters will also provide valuable information by indicating “low activity cows” which need attention.

The Herd Navigator bio-model software is prepared to add activity data, which will add to the functionality.


Can I quit pregnancy determination when I have progesterone measurements?

When a group of cows are inseminated, some of them do not get pregnant and some will experience early embryonic loss.
The system will recognise these cows, so you do not have to have them pregnancy checked.

Cows which have passed 30 days after insemination without coming into heat are considered potentially pregnant by Herd Navigator. It is still recommended that a manually pregnancy detection is performed to ensure that the cow is pregnant. The system continues to measure until 55 days after insemination since the majority of abortions occur during this period of time.


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