Publication: Effects of Commercial Antioxidants in Feed on Growth Performance and Oxidative Stress Status ofWeaned Piglets
Authors
Orengo Femenia, Juan ; Hernández Ruipérez, Fuensanta ; Martínez Miró, Silvia ; Sánchez Parra, Cristian Jesús ; Peres Rubio, Camila ; Madrid Sánchez, Josefa
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Publisher
MDPI AG
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DOI
https://doi.org/10.3390/ANI11020266
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info:eu-repo/semantics/article
Description
Abstract
This work aimed to evaluate the effect of adding two different commercial antioxidants
(AOX) products to pre-starter and starter diets using low vitamin E (Vit E as DL- -tocopheryl acetate)
levels on the growth performance and oxidative stress of piglets for the first six weeks post-weaning
(PW). They were sorted by initial body weight (BW: 6.175 0.931 kg) and randomly allotted to
four dietary treatments (with six replicates per treatment): a positive control (PC) and a negative
control (NC) diet, with normal and low dose of vitamin E (80 and 15 mg kg1, respectively), both
without AOX; the other two experimental diets with a low dose of vitamin E (LVE) plus LOXIDAN
VD100 (LVE + AOX1) or LOXIDAN E Ros (LVE + AOX2). Growth data were recorded, and blood
samples were taken, at the beginning (day 0) and at the end of each feeding period: pre-starter and
starter (at days 14 and 42, respectively). No differences among dietary treatments were found with
respect to growth performance in the pre-starter period (p 0.05). However, at the end of the starter
period, a lower BW was found in piglets fed the NC diet compared to the other dietary treatments.
Differences in daily gain and feed conversion ratio were also found either for the starter period or
when the whole period was considered (p < 0.05), whereby piglets fed PC or LVE diets supplemented
with AOX showed better growth performance compared to piglets fed the NC diet. Regarding Vit
E ( -tocopherol) serum levels, there were no differences among treatments at day 0; but the serum
values of this vitamin decreased in LVE diets at 14 and 42 days, but not in the PC. On day 42, the
highest levels of -tocopherol in liver were also found in piglets fed PC (p < 0.05). Nevertheless, in
general, from a metabolic point of view and after checking the serum biochemical profile of piglets,
there were no differences in other oxidative stress markers (p 0.05). The results showed that the
AOX products used were able to compensate for the lower Vit E supply with respect to growth
performance in the starter phase. The use of AOXs or usual levels of Vit E in feed constitutes a key
factor in achieving optimal growth performance of piglets in the PW period.
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Citation
3. Orengo, J., Hernández, F., Martínez-Miró, S., Sánchez, C. J., Peres Rubio, C., & Madrid, J. (2021). Effects of commercial antioxidants in feed on growth performance and oxidative stress status of weaned piglets. Animals, 11(2), 1-13.
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