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Effect of Neonatal Interventions with Specific Micronutrients and Bovine Colostrum on Micronutrient and Oxidative Statuses and on Gut Microbiota in Piglets from Birth to Post-Weaning Period

Overview
Journal Vet Sci
Publisher MDPI
Date 2025 Feb 26
PMID 40005911
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Abstract

This study aimed to determine the impact of supplementations of copper, vitamins A and D (ADCU), and a bovine colostrum extract (BC) on the micronutrient status, antioxidant status, and intestinal microbiota of piglets until the post-weaning period. Twenty-three sows were fed conventional gestation and lactation diets, and twenty-four sows were fed conventional diets supplemented with ADCU. For each litter, all piglets received one of four treatments during lactation: no supplementation; ADCU; BC; and ADCU + BC. Within each litter, one low (LW) and one high birth weight (HW) piglet were euthanized before and after weaning to collect liver and intestinal samples. Serum vitamin D, liver retinol, and liver Cu were greater in ADCU piglets ( < 0.01), mostly before weaning. After weaning, liver Cu decreased markedly with a drop of 75% in all treatments, despite high levels of Cu in their post-weaning diets. The antioxidant status of piglets was not globally altered by treatments ( > 0.05). For microbiota composition, sow supplementation increased ( < 0.01) richness in bacterial species in the piglet colon, either before or shortly after weaning. Short-chain fatty acids in caecal digesta were increased by sow supplementation in LW piglets before weaning at 16 days of age ( < 0.05). In conclusion, oral supplementations to piglets increased postnatal micronutrient statuses during lactation, but this did not generally persist after weaning. Treatments to sows or piglets did not improve the response of piglets to oxidative stress, but supplementation to sows favoured gut microbiota diversity, particularly in LW piglets.

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