ArticleAnimal bioscience2026
Effects of dietary vitamin D3 supplementation on growth performance, blood vitamin D status, and antioxidant capacity in weaning pigs.
Article in Animal bioscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- The Redox Paradox of Natural Supplements in Cancer: A Narrative Review to Guide Clinical Practice.Antioxidants (Basel, Switzerland) · 2026Review
- Effects of Dietary 25-Hydroxycholecalciferol Alone or in Combination with Vitamin DAnimals : an open access journal from MDPI · 2026Article
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6 authors.
Funding
Abstract
objectiveThis study evaluated the effects of dietary vitamin D3 (VD3) supplementation on growth performance, blood vitamin D, and antioxidant status in weaning pigs.
methodsForty newly weaned piglets (6.02±1.17 kg) were assigned to two treatments with five replicates over a 28-d period. Treatments were 1) NRC-VD3: NRC recommended levels (220 IU/kg in Phase 1 [d 0-14 postweaning] and 200 IU/kg in Phase 2 [d 14-28 postweaning]), and 2) High-VD3: a high level of VD3 (2,000 IU/kg in Phase 1 and 2). Body weight, average daily gain, average daily feed intake, and gain-to-feed ratio were measured weekly. Blood samples were collected at d 14 and 28 postweaning for the analyses of plasma 25-hydroxycholecalciferol (25-OHD3), total antioxidant capacity (T-AOC), superoxide dismutase (SOD) activity, and malondialdehyde (MDA) levels. Pearson correlation coefficients between plasma 25-OHD3 and SOD, MDA, or T-AOC were determined.
resultsGrowth performance did not differ in overall nursery period although feed intake was lower in the High-VD3 group than the NRC-VD3 group in d 14-28 postweaning (p<0.05). Pigs fed High-VD3 diets showed greater plasma 25-OHD3OHD3 at d 14 and 28 postweaning (p<0.05), tended to have reduced plasma MDA (p = 0.06), and increased plasma SOD activity (p = 0.10) at d 14 postweaning compared with those fed NRC-VD3 diets with no effect in plasma T-AOC. At d 14 postweaning, plasma 25-OHD3 was positively correlated with plasma SOD activity (r = 0.532; p<0.05) and tended to be negatively correlated with plasma MDA levels (r = -0.491; p = 0.06).
conclusionHigh VD3 supplementation at 2,000 IU/kg did not enhance growth performance, while improving plasma vitamin D and antioxidant status in weaning pigs compared to NRC-level supplementation. Therefore, supplementing weaning pigs with higher-than-recommended levels of VD₃ could be beneficial to enhance their antioxidant status and overall health.
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