Publication: Influence of Maternal Supplementation with Vitamins, Minerals, and (or) Protein/Energy on Placental Development and Angiogenic Factors in Beef Heifers during Pregnancy
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Date
2024-03-02
Authors
Davila Ruiz, Bethania J ; Dahlen, Carl R ; McCarthy, Kacie L ; Caton, Joel S ; Hurlbert, Jennifer L ; Baumgaertner, Friederike ; Menezes, Ana Clara B ; Diniz, Wellison JS ; Underdahl, Sarah R ; Kirsch, James D ; Sedivec, Kevin K ; Bochantin, Keri A ; Borowicz, Pawel P ; Cánovas Bernabé, Sebastián ; Reynolds, Lawrence P
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Publisher
MDPI
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DOI
https://doi.org/10.3390/vetsci11030111
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info:eu-repo/semantics/article
Description
© 2024 The authors. .
This document is the accepted version of a published work that appeared in final form in Veterinary Sciences. .
This document is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0
To access the final edited and published work see:
https://doi.org/10.3390/vetsci11030111
Abstract
Understanding placental vascularity is vital for ensuring the proper nourishment of the fetus and, therefore, a healthy offspring. We aimed to investigate the impact of vitamin and mineral supplementation and/or different rates of body weight gain on placental vascularity in beef heifers. To this end, in the first experiment, heifers were divided into groups that received vitamin and mineral supplementation or did not at least 72 days before breeding. At breeding, they were further divided into low or moderate-weight gain groups, resulting in four different treatments maintained until day 83 of pregnancy when tissue collection was performed. In the second experiment, another group of heifers received a basal diet or a diet with vitamin and mineral supplementation from breeding until parturition. We evaluated placental blood vessel density in both experiments and the placental expression of genes related to blood vessel growth in the first experiment. Results showed that supplementation and the rate of body weight gain during early pregnancy did not significantly affect placental vascularity or the expression of angiogenic factors. On the other hand, placental vascularity measured at parturition was increased in the fetal placenta of the supplemented group. These findings suggest that supplementation with vitamins and minerals throughout all gestation may impact placental function at a later stage of pregnancy.
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Citation
Vet. Sci. 2024, 11(3), 111
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