How Does Nutrition Influence the Immune System? – Dr. Barry Bradford, Kansas State University

January 16, 2015

In this third episode of the immune system series, Dr. Barry Bradford from Kansas State University discusses how nutrition plays a fundamental role in regulating the immune status of the dairy cow.   He explains the underlying mechanisms across several nutrient categories and how they not only help balance the immune system, but also contribute greatly to gut and metabolic health of the animal.

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Dr. Barry Bradford

Dr. Barry Bradford

Professor, Department of Animal Sciences and Industry
Kansas State University

See all sessions with Dr. Bradford



  1. Jan Anné says:

    Hello Dr. Bradford

    do you have compared coated fatty acids with esterified fatty acids in ruminants ?

    We are producer of esterified fatty acids with excellent results in broiler and piglets. We are a familial chemical company and are looking for professional consulting for ruminants.
    Besides the esterification we also designed a reactor to cultivate pure algae ( freeze dried end product)

    Looking forward foor your feedback

    Jan Anné

    • Renee Smith says:

      Dear Jan,

      There have been a fair number of studies which have evaluated ruminal stability and/or systemic bioavailability of triglycerides vs. fatty acyl salts (soaps), and some that have also looked at coated fatty acid sources. In general, glycerides of PUFA in ruminants are largely transformed to saturated FA in the rumen, because lipase activity and subsequent biohydrogenation activity in the rumen is quite high. I am not, however, aware of much research on the stability of FA esters other than glycerides; perhaps that is what you refer to. I do not know what esters might be cost-effective to produce or what the stability of such products would be in the rumen. Another factor, of course, if that ruminal stability must be paired with intestinal availability to make the product useful to the animal. This has been a tricky problem under investigation for decades. Your source of algae may offer a cost-effective source of omega-3 PUFA for downstream use by one or more protection processes, and that is always welcome!

      Barry Bradford

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