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Associations between maternal vitamin D status and porcine litter characteristics throughout gestation

Journal of Animal Science and Biotechnology 2023年第2期14卷 806-813页

作者： Claire Stenhouse emma hurst Richard J.Mellanby Cheryl J.Ashworth Functional Genetics and Development Division The Roslin Institute and Royal(Dick)School of Veterinary StudiesUniversity of EdinburghMidlothian EH259RGUK Current Affiliation Department of Animal ScienceTexas A&M UniversityCollege StationTexas 77843‑2471USA Clinical Sciences Division The Roslin Institute and Royal(Dick)School of Veterinary StudiesUniversity of EdinburghMidlothian EH259RGUK.

Emerging evidence suggests an important role of vitamin D in the establishment and maintenance of pregnancy,and the regulation of foetal growth across mammalian ***,the temporal changes in maternal vitamin D sta-tus throughout gestation in the pig and the relationship between maternal vitamin D status and litter characteristics of interest across gestation remain poorly understood and *** abundance of 25(OH)D in maternal plasma was quantified by HPLC–MS/MS at gestational days(GD)18,30,45,60 and 90(n=5–11 gilts/GD).Maternal plasma 25(OH)D concentrations significantly increased between GD18 and GD30(P<0.05).The relationship between maternal vitamin D metabolite concentrations and litter characteristics of interest including gilt weight,ovulation rate,mean litter weight,number of live foetuses,percentage prenatal survival,and sex ratio of the litter was *** 25(OH)D(P=0.059)concentrations tended to be positively associated with percentage prenatal survival on *** GD90,maternal 25(OH)D(P<0.05)concentrations were inversely associated with gilt *** plasma 25(OH)D concentrations were inversely associated with the percentage of male foetuses in the litter on GD90(P<0.05).This study has provided novel insights into temporal changes in maternal vitamin D status throughout ges-tation and the relationship between maternal vitamin D status and the economically important litter characteristics of gilt weight,percentage prenatal survival and percentage of male foetuses in the *** the understanding of the role of vitamin D across important developmental timepoints in relation to foetal growth is essential to improve reproductive success in livestock species.

关键词： Porcine Pregnancy Vitamin D

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