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. 2023 Jul 27;12(8):1504.
doi: 10.3390/antiox12081504.

Different Effect of Vitamin E or Hydroxytyrosol Supplementation to Sow's Diet on Oxidative Status and Performances of Weaned Piglets

Gerardo Gómez  1 , Hernan D Laviano  2 , Juan M García-Casco  3 , Rosa Escudero  2 , María Muñoz  3 , Ana Heras-Molina  2 , Antonio González-Bulnes  4 , Cristina Óvilo  3 , Clemente López-Bote  2 , Ana I Rey  2
Affiliations

Different Effect of Vitamin E or Hydroxytyrosol Supplementation to Sow's Diet on Oxidative Status and Performances of Weaned Piglets

Gerardo Gómez et al. Antioxidants (Basel). .

Abstract

Different feeding strategies are being applied to sows in order to obtain homogeneous piglets' weights and improved health status. This study evaluated how the dietary supplementation of vitamin E (VE) (100 mg/kg), hydroxytyrosol (HXT) (1.5 mg/kg) or the combined administration (VE + HXT) given to Iberian sows from day 85 of gestation affected the growth pattern of the piglets and their oxidative status; and quantified what these effects were due to. Dietary VE and HXT improved the oxidative status of sows and piglets. Both VE and HXT modified the growth pattern at birth and performances of the piglets in a different way according to the growing period. Piglets' performances were positively correlated with plasma VE and negatively with plasma malondialdehyde (MDA) of the sow. However, the highest variation in growth patterns was explained by the colostrum composition. Significant linear equations were observed between piglets' performances and colostrum saturated (SAT), n-7 monounsaturated fatty acids (C16:1n-7 and C18:1n-7) and different desaturases indices. This study would confirm that VE supplementation to the sow diet could be more adequate than HXT for the improved development during the first weeks of a piglet's life. The combined administration of both antioxidants would not produce additional positive effects compared to the individual supplementation.

Keywords: Iberian sows; antioxidants; body measurements; olive derivatives; piglet’s growth.

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Conflict of interest statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.

Figures

Figure 1
Figure 1
Oxidative status of piglets pre- or post-weaning from sows given α-tocopheryl acetate (VE: 30 vs. 100 mg/kg) or hydroxytyrosol (HXT: 0 vs. 1.5 mg/kg) from day 85 of gestation. a,b,A,B Letters with different superscripts were statistically significant.
Figure 2
Figure 2
Regression equations between oxidative status of sows (MDA concentration) and growth of post-weaning piglets born from sows given α-tocopheryl acetate (VE: 30 vs. 100 mg/kg) or hydroxytyrosol (HXT: 0 vs. 1.5 mg/kg) from day 85 of gestation. ADWG = average daily weight gain.
Figure 3
Figure 3
Regression equations between plasma α-tocopherol (µg/mL) and growth parameters (weight and averaged daily weight gain (0–28 d): ADWG) or measurements of weaned piglets (day 33) born from sows given α-tocopheryl acetate (VE: 30 vs. 100 mg/kg) or hydroxytyrosol (HXT: 0 vs. 1.5 mg/kg) from day 85 of gestation.
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