Driving Genetic Gains for New Zealand Dairy Farmers

myDNA manager, Connie McFarlane
myDNA manager, Connie McFarlane

CRV’s new myDNA manager Connie McFarlane is on a mission to unlock the genetic potential of CRV’s dairy herds, delivering farmers hard data to make informed decisions that breed more efficient cows.

An expert in genetics and breeding, Connie holds a Master of Science Majoring in Animal Science from Massey University.

She joined CRV in July and says she has always been passionate about how genetics work and what they can achieve for farmers.

“My grandfather had a sheep and deer farm. I’ve always loved farming and then learning about genetics and what happens if you breed animals for certain traits.”

Connie says her grandfather, who farmed at Fairview in Timaru, was ahead of his time in wanting to improve the genetics in his flock and that background drove her to study genetics at Massy University and go on to complete her Masters.

Her Masters investigated the correlation between dairy beef genetics and beef genetics looking at progeny test data for both dairy beef and beef and their weaning weights at 200, 400 and 600 days old.

“As the dairy industry seeks to ensure every calf born adds value, more farmers are turning to dairy beef but there is a perception that dairy beef produces smaller animals than straight beef,” says Connie.

“The study proved this is not necessarily true and farmers can use beef progeny tests to give a good indication of their dairy beef growth rates will be,” says Connie.

There is more work to do in the dairy beef space, but she says advancements in DNA technology mean New Zealand farmers now have the tools to create precise data on their herd’s genetic potential.

Since arriving at CRV she says she has enjoyed talking with farmers and letting them know what’s available to them through CRV’s myDNA offering to help them improve the genetics in their herd.

“It’s been so great talking with farmers and helping share how services like myDNA can help them in their business,” says Connie.

“Testing has come a long way in recent years and the accuracy is now very high. Using myDNA, farmers can create an accurate picture of their young stock’s potential without having to wait two years until their heifers enter the herd to see how they perform.”

Connie says improving herds relies on farmers breeding the right bulls with the right cows and if farmers don’t have an accurate picture of the genetic make-up of their herds, they’re at a disadvantage from the start.

The journey starts with DNA testing a herd to determine their correct dam and sire and from there Connie says farmers can use CRV’s single-step genomic testing to determine the traits a heifer is likely to display before she even enters the herd.

“When you consider that raising a heifer can cost around $2,000 per animal, using DNA testing and the genomic data available through myDNA becomes critical to saving farmers the expense of breeding and raising less productive animals,” says Connie.

She says it is even more useful when farmers use the data alongside sexed semen, as this helps to ensure they get replacement heifer calves from their highest genetic merit cows.

"We’re seeing an increase in farmers who want to have this data to actually make better decisions for their herd, which is great. It’s an exciting time to be working in this area and it’s great to see what we can achieve for CRV’s farmers."

For more information on myDNA vist CRV4all.co.nz.