The effects of Vitamin E supplementation on the stress resistance of poultry and pigs under commercial rearing conditions

Blog post description.

3/17/20261 min read

Vitamin E is a potent lipid-soluble antioxidant that plays a critical role in enhancing the stress resistance of poultry and pigs under commercial rearing conditions (Surai, 2002). Supplementation with vitamin E has been shown to reduce oxidative stress by neutralizing free radicals generated during stressful events such as transportation, overcrowding, and environmental fluctuations (Yao et al., 2004). In poultry, dietary vitamin E improves immune function, decreases mortality rates, and enhances overall productivity under stress conditions (Kumar et al., 2008). Similarly, in pigs, vitamin E supplementation has been reported to improve antioxidant status, reduce muscle oxidative damage, and promote better growth performance during periods of stress (Kaya et al., 2004). The antioxidant effects of vitamin E are associated with increased activity of enzymes such as glutathione peroxidase, which protect cellular membranes from oxidative injury (Surai, 2002). Under commercial rearing environments, vitamin E also modulates stress-related hormonal responses, including corticosterone levels, thereby contributing to improved resilience (Yao et al., 2004). The optimal dosage of vitamin E varies depending on species, age, and stress level but generally enhances the animals' ability to withstand environmental challenges (Kumar et al., 2008). Moreover, vitamin E supplementation has been linked to improved meat quality in pigs by reducing lipid peroxidation, which is often elevated under stress (Kaya et al., 2004). Overall, dietary vitamin E serves as a beneficial nutritional strategy to mitigate oxidative damage and improve the health and productivity of poultry and pigs in commercial settings (Surai, 2002). However, excessive supplementation may lead to diminishing returns and potential toxicity, emphasizing the importance of appropriate dosing (Yao et al., 2004). Vitamin E supplementation enhances stress resistance in poultry and pigs by bolstering antioxidant defences and modulating hormonal responses, thereby supporting animal welfare and productivity under commercial rearing conditions (Surai, 2002).

Promois International (www.promoisinternational.com) is one of the best-known manufacturers of encapsulated vitamin E.