Genetic testing is at the forefront of modern dairy farming, promising transformative advancements in productivity, health, and sustainability. As technology continues to evolve, so too does its application in agriculture.
In this episode, Dr Simon Lashmar, an esteemed researcher specialising in animal breeding and genetics at the Agricultural Research Council (ARC), shares his expertise on genetic testing in dairy cows.
According to Lashmar, genetic testing examines genetic variations, often referred to as mutations, in the DNA or genetic makeup of animals. He explains how genetic testing is applied and the various steps involved.
“The types of genetic tests can broadly be divided into three types of applications. The first is phenotypic selection, the second is DNA profiling and parentage testing, and the third type is genetic selection for improved performance or production,” Lashmar says.
Related stories
- Biosecurity crisis: New FMD variant threatens EC dairy farms
- Ask Afrivet: Bird flu in dairy cows; should we be concerned?
Genetic markers and their benefits
Lashmar also breaks down the main genetic markers associated with high milk production and how this information can be used to enhance the selection of high-producing animals. However, no single gene is responsible for improved milk production, he adds.
“Previous studies have identified several key genes that may contribute. These include the DGAT1 (Diacylglycerol O-Acyltransferase 1) and the PRL (Prolactin) genes.”
He further discusses several other genes that contribute to improved milk production, and how genetic markers can translate into practical benefits for dairy farmers.
In this episode, Lashmar also explains:
- The first steps farmers can take when introducing genetic testing into herds;
- Motivations for genetic testing in dairy herds and more
Want to know more? Dive deeper into the episode and gain insights from the award-winning Farmer’s Inside Track, officially recognised as Africa and the world’s best podcast at the 2024 Digital Media Awards presented by WAN-IFRA, the global press organisation.
Option 1: Click here to listen on Spotify (all mobile and other devices).
Option 2: Click here to listen on any Apple device.
READ NEXT: How to boost dairy farm efficiency with genetic testing
Sign up for Farmer’s Inside Track: Join our exclusive platform for new entrants into farming and agri-business, with newsletters and podcasts.
