Relationship between serum magnesium concentration during the transition period, peri‑ and postpartum disorders, and reproductive performance in dairy cows

This study evaluated the relationship between serum magnesium concentration, peri‑ and postpartum disorders, and reproductive performance in dairy cows. Blood samples were collected from 198 Holstein cows 4 weeks prepartum, after calving, and 1, 2, 4, 6, and 8 weeks postpartum to measure serum magnesium and/or progesterone concentrations. To determine the relationship between serum magnesium concentration and peri‑ or postpartum disorders, cows...