Effects of vitamin E supplementation on and the association of body condition score with changes in peroxidative biomarkers and antioxidants around calving in dairy heifers

Journal of Dairy Science
P DobbelaarE H J M Jansen

Abstract

The objective of this study was to investigate the effect of vitamin E supplementation on oxidative status in blood, liver, milk, and ovarian follicular fluid in periparturient heifers. Vitamin E supplementation started 8 wk before calving and continued until 8 wk postpartum. Grass silage was the main forage fed during the experiment. In addition, supplemented heifers (n=9) received 3,000I U of vitamin E daily on a carrier food; control heifers (n=9) consumed only the carrier food. Blood samples and liver biopsies were taken frequently throughout the study and ovarian follicular fluid was sampled at 8 wk postpartum. Body condition score was scored weekly and milk yield was measured daily. A marker of oxidative damage, determinable reactive oxygen metabolites (d-ROM), and a set of antioxidants were measured in blood, liver, milk, and ovarian follicular fluid. Control heifers had a low vitamin E status, and selenium status was marginal in control and supplemented heifers. Vitamin E supplementation increased vitamin E concentrations in blood, liver, and ovarian follicular fluid and increased triacylglycerol in liver. Serum d-ROM were not reduced by vitamin E supplementation. Superoxide dismutase and glutathione peroxidase activity...Continue Reading

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Citations

Mar 21, 2013·Animal : an International Journal of Animal Bioscience·A AbueloC Castillo
Mar 11, 2016·Oxidative Medicine and Cellular Longevity·Xiaolu JinJianxin Liu
Dec 6, 2014·Journal of Animal Physiology and Animal Nutrition·A AbueloC Castillo
Nov 21, 2017·Journal of Dairy Science·A J HeinrichsC M Jones
Nov 21, 2017·Journal of Dairy Science·R K McGuffey
Aug 25, 2021·Tropical Animal Health and Production·Mostafa A SalehMervat S Hassan

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