Why is oxidative stress such a big concern?

When piglets switch from milk to solid feed, most experience a vulnerable period with a higher risk of disease and reduced growth. Oxidative stress is a major contributor to this phase, which is known as the weaning dip or post-weaning stress syndrome.

Here, we’ve gathered the latest knowledge about oxidative stress. Sign up to receive our top selection news on this topic or scroll down to watch the webinar recording.

3 main causes

Oxidative stress is a complicated subject that can be hard to grasp. In a nutshell, it is caused by the formation of free radicals, resulting from dietary stress in the form of low quality feed, environmental stress and social stress. When the free radicals are not controlled, they cause a chain reaction that leads to increased gut inflammation and, eventually, cell death.

Watch out for these symptoms:

  • Diarrhea
  • Muscle degeneration
  • Loss of appetite
  • Decreased immunity

Remove the root cause

Various feed additives are typically used to control oxidative stress. New studies point to an alternative possibility: to remove the root cause. The findings show that high quality proteins with a low content of anti-nutritional factors (ANFs) may eliminate the need for increased additive use.

In these feeding trials, weaned piglets fed a starter diet that contained a specialty soy protein with a low anti-nutritional factors content – HP 300 from HAMLET PROTEIN – were found to have a better oxidative status than piglets fed a diet containing soybean meal, fermented soy or soy protein concentrate (Learn about the different types of soy).



The best return on investment

Soy proteins with a high antigen content may be cheaper to buy - but are more likely to increase oxidative stress. In other words, a starter diet that contains a more expensive specialty protein can secure cost savings in the long run – and eliminate the need to buy antioxidant additives.

Read an article on why oxidative stress is so important by Dr.  Elke von Heimendahl, Global Swine Manager at HAMLET PROTEIN.


Brochure on how to minimize oxidative stress

Download pdf


If you missed our webinar

on dietary stress at weaning,

watch it here.

The Webinar was held in partnership with PigProgress

Need advice on optimizing piglet diets and nutrition?

Lars Sangill Andersen


Phone: + 45 22 16 94 55

Email: [email protected]

Günther Dubberke

Nutritionist - Germany

Phone: + 49 160 952 29 200

Email: [email protected]

Jes Klausen


Phone: + 45 40 53 85 96

Email: [email protected]

Diego Navarro

Swine Nutritionist

Phone: +1 217 480 7968

Email: [email protected]

Eugene Li

Nutritionist - China

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Jose Luis Laparra

Technical Sales Consultant - BRSA

Phone: 011 52 (1) 555 435 0209

Email: [email protected]