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Effects of Altering the Omega-6 to Omega-3 Fatty Acid Ratio in Starter Diets on Piglet Inflammatory Response

Published: March 26, 2014
Summary
INTRODUCTION Weaning is a critical time in a piglet’s life. They are exposed to many new stressors, including immune challenges. These stressors can lead to reduced feed intake and growth, and an inflammatory response will be generated. Although a certain degree of inflammatory response is beneficial during this time, an over-production of immune cells can be detrimental, leading to incr...
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Authors:
Laura Eastwood, Ph.D.
Prairie Swine Centre Inc.
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Denise Beaulieu
University Saskatchewan
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Dave Albin
Insta-Pro International
31 de marzo de 2014
Are the diet formulations published somewhere? Interesting results...
Laura Eastwood, Ph.D.
Prairie Swine Centre Inc.
31 de marzo de 2014
The diet formulations have not been published as of yet. They were wheat and barley based (ranging from 24-42% wheat and 10-20% barley) with 21-24% soybean meal. We adjusted the fatty acid profile using corn, flax seed meal (13% fat), corn oil, flax oil, tallow (control diet) and fish oil (5:1 fish diet). Diets also contained 2.5% spray dried animal plasma and 15% dried whey as well as all the required vitamins and minerals to balance them according to NRC 1998.
Dave Albin
Insta-Pro International
31 de marzo de 2014
Thanks. Why do you think the plant 10:1 ratio did not maximize the inflammatory response? BTW, I knew Denise many years ago. Great work....
Laura Eastwood, Ph.D.
Prairie Swine Centre Inc.
31 de marzo de 2014
It is possible that pigs did not consume diets long enough prior to the challenge to see the expected result of maximized response with the 10:1 diet. However, it is also possible that the increased response observed by the 5:1 pigs when challenged is beneficial, in that they have a greater ability to mount a response when needed but have a possible lower 'background level' when not challenged. Further work needs to be done to determine what is 'beneficial' and what is 'detrimental' to the pigs at this time. P.S. Denise says Hi!
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