ArticleVeterinary and animal science2023
Plasma ionized calcium and magnesium concentrations and prevalence of subclinical hypocalcemia and hypomagnesemia in postpartum grazing Holstein cows from southern Chile.
Article in Veterinary and animal science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 10 citations in OpenAlex.
- Calcium status of multiparous Holstein cows during early lactation and its association with the health and production of 3 grazing dairies in Antioquia, Colombia.JDS communications · 2026Article
- Hypocalcemia in Dairy Cows: A Systematic Review of Metabolic Implications and Management Strategies.Life (Basel, Switzerland) · 2026Review
- Development of a rapid calcium testing strip with metal-enhanced fluorescence for early detection of hypocalcemia in dairy cattle.Mikrochimica acta · 2026Article
- Breed- and Parity-Associated Incidence and Manifestation of Metabolic Disorders in Holstein and Jersey Cows During the Postpartal Transition Period.Animals : an open access journal from MDPI · 2026Article
- The Pivotal Interaction Between Serotonin and Calcium Shifts in Lactating Pregnant Spanish Purebred Mares: The Aging Effect.Veterinary sciences · 2025Article
- Animal health and nutrition: metabolic disorders in cattle and improvement strategies.Frontiers in veterinary science · 2025Review
- Article
- Determination of the impact of subclinical hypocalcemia on milk production in the first third of lactation in intensively farmed cows in Lima, Peru.Open veterinary journal · 2025Article
- Prevention of Subclinical Hypocalcemia in Holsteins Fed an Anionic Diet and Treated With Two Calcium Boluses at the Time of Calving.Journal of veterinary internal medicineArticle
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Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective was to determine the plasma concentrations of ionized Ca (iCa) and Mg (iMg) and to establish the prevalence of subclinical hypocalcemia (SCHC) and hypomagnesemia (SCHM) in dairy cows at calving (within 6 hours of parturition) and at 7 days postpartum (pp) in Chilean grazing herds with spring parturitions. Plasma iCa and iMg were assessed using a clinical analyzer. A total of 113 and 175 cows in 18 herds selected at random were sampled at calving and at 7 days pp, respectively. From these 18 herds, 11 herds provided reliable records of lactation number and 8 cows per herd were scored for body condition and sampled at calving and then at 7 days pp. Ionized Ca concentrations for the 18 herds were 0.99 ± 0.16 mmol/L (calving) and 1.01 ± 0.13 mmol/L [7 d pp (P > 0.05)]. Ionized Mg concentrations were 0.58 ± 0.12 mmol/L and 0.51 ± 0.09 mmol/L (P ≤ 0.05). For the 11 herds, iCa concentrations at calving were 1.06 mmol/L (lactation 1), 1.02 mmol/L (lactation 2) and 0.89 mmol/L (lactation ≥ 3), while iMg concentrations were 0.63 mmol/L, 0.60 mmol/L, and 0.61 mmol/L, respectively. Herd prevalence for SCHC (iCa < 1.0 mmol/L) at calving was 64.8%. Prevalence by parity was 40%, 54.5% and 86.7% for lactations 1, 2 and ≥ 3, respectively. Herd prevalence of SCHC on day 7 pp was 30.1%. For SCHM (iMg < 0.52 mmol/L) prevalence was 21.6% and 48.9% at calving and at 7 days pp, respectively.
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