The Feed Science Podcast Show - John McEwan: How Genomics Improves Feed Efficiency | Ep. 135

In this episode of The Feed Science Podcast Show, John McEwan, Principal Scientist retired at BSI AgResearch in New Zealand, explains how genetics and genomics are transforming ruminant production. He discusses breeding strategies that reduce methane emissions while improving feed efficiency and productivity in sheep and cattle systems. John highlights genomic selection, difficult-to-measure traits, and practical implementation at industry scale. Learn valuable insight for feed and nutrition professionals focused on sustainability and performance. Listen now on all major platforms!

What you’ll learn: 

• Methane reduction genetics
• Genomic selection tools
• Feed efficiency traits
• Rumen microorganism profiling
• Future breeding strategies

Meet the guest:

John McEwan is a retired Principal Scientist at BSI AgResearch in New Zealand with more than four decades of experience in quantitative genetics, genomics, and bioinformatics. His work has focused on genomic selection, meat quality, feed efficiency, and breeding ruminants with lower methane emissions. 

Learn from John McEwan on The Feed Science Podcast Show and listen on all major platforms.
Connect with our guest on Social Media: LinkedIn

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