Franklin Vets
Franklin Vets - excellence in veterinary care for dairy, farming, lifestyle, equine and household pets. BESTPRACTICE ACCREDITED NZ.
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Considering this, we tried to develop a concept mating built around as short a period of AI as possible while optimising replacement numbers. To get adequate replacement calves (~20%) we needed 80-90% of the herd mated to AI. By combining the ‘Why Wait’ Programme (cycling cows) with a single round of Prosynch Plus Treatments (non-cycling cows) theoretically every cow is mated at least once to AI, and it's all done and dusted in 7-10 days. Not all cows respond to the Why Wait and some will always be omitted from AI, so the numbers are never a perfect 100% but well within the 80-90% range which means that roughly half of the herd is in-calf within 10 days.
Some of the benefits:
This approach gives you a lot of control over the mating period and results can be accurately forecast. We have run this on two farms for consecutive years now with results below:
These farms have continued to perform at a very high level over the past two seasons using the 10-day approach making gains in both calving pattern and empty rate. This approach will not be for everyone and does require some upfront cost, however, we have found the time savings, in-calf results, and subsequent improvements to overall farm management very agreeable. If the concepts in this article have started the sparks flying feel free to get in touch to discuss or talk to your local veterinarian. The farms referenced in this article would be very happy to share their experiences and we can put you in touch.
Dr Greg Lindsay BVSc Farm Vet & Regional Manager, Kopu
Franklin Vets - excellence in veterinary care for dairy, farming, lifestyle, equine and household pets. BESTPRACTICE ACCREDITED NZ.