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Selenium in NZ Farming: Soil Deficiency and Animal Health

This lesson explains why selenium supplementation is essential in New Zealand farming systems due to naturally low soil selenium levels. Mike Manning, Strategic Science Advisor at Ravensdown, previously Chief Science Officer, outlines how selenium is added to fertiliser using selenium prills, how it is absorbed and stored by animals, and why adequate selenium is critical for livestock growth, reproduction and overall health. A practical guide to understanding selenium’s role in productive livestock systems.

 

Video details
Duration 1:02

Presented by

Mike Manning, Strategic Science Advisor at Ravensdown

Mike Manning

Strategic Science Advisor, Ravensdown (formerly Chief Science Officer)

With over 32 years in the fertiliser industry, Mike leads Ravensdown’s science and innovation efforts across research and development, environmental consultancy, diagnostics and strategic partnerships. His work helps farmers boost productivity while reducing environmental impact through scalable, science-backed solutions.