Serum concentrations of calcium, phosphorus, magnesium and calciotropic hormones in donkeys.
Abstract: To provide reference values for serum biochemical variables that are used for evaluation of mineral metabolism in donkeys and compare values with those in horses. Methods: 18 donkeys and 18 horses. Methods: Total calcium (tCa), total magnesium (tMg), and inorganic phosphorus (P) concentrations were measured in serum samples via spectrophotometry. Ionized calcium (iCa) and magnesium (iMg) concentrations were quantified with selective electrodes. By use of a micropartition system, tCa and tMg were fractionated to separate protein-bound (pCa, pMg) and ultrafiltrable fractions. Complexed calcium (cCa) and magnesium (cMg) concentrations were calculated by substracting ionized fractions from ultrafiltrable fractions. Parathyroid hormone (PTH) and calcitriol (CTR) concentrations were measured via radioimmunoassay. Results: Serum tCa concentration in donkeys (3.37 +/- 0.21 mmol/L) was composed of pCa (1.59 +/- 0.21 mmol/L [47.0 +/- 4.2%]), iCa (1.69 +/- 0.04 mmol/L [50.4 +/- 3.0%]), and cCa (0.09 +/- 0.08 mmol/L [2.6 +/- 2.9%]). Serum tMg concentration (1.00 +/- 0.08 mmol/L) was fractioned in pMg (0.23 +/- 0.08 mmol/L [23.4 +/- 8.1%]), iMg (0.59 +/- 0.04 mmol/L [58.8 +/- 5.1%]), and cMg (0.18 +/- 0.08 mmol/L [17.8 +/- 7.2%]). Serum concentrations of P (1.14 +/- 0.30 mmol/L), PTH (20.4 +/- 21.2 pg/mL), and CTR (13.4 +/- 5.9 pg/mL) were determined. Conclusions: Serum variables of mineral metabolism in donkeys were within reference ranges for horses. However, when compared with horses, donkeys had higher iCa, cMg, and CTR and lower pMg and PTH concentrations.
Publication Date: 2006-08-03 PubMed ID: 16881844DOI: 10.2460/ajvr.67.8.1333Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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This research study aimed to establish reference levels for certain biochemical elements associated with mineral metabolism in donkeys. The findings show that these levels are within the normal range for horses, but some specific variations were noted between the two species.
Methods
- The study involved 18 donkeys and 18 horses.
- The researchers measured the total calcium (tCa), total magnesium (tMg), and inorganic phosphorus (P) concentrations in serum samples gathered from these animals. They used a spectrophotometry method for this.
- The ionized calcium (iCa) and magnesium (iMg) concentrations were then quantified through selective electrodes.
- Using a micropartition system, the total calcium and total magnesium were fractioned. This process served to separate the elements that were bound to proteins (pCa, pMg).
- They calculated the complexed calcium (cCa) and magnesium (cMg) concentrations by subtracting the ionized fractions from ultrafiltrable fractions.
- The concentrations of Parathyroid hormone (PTH) and calcitriol (CTR) were then measured via a radioimmunoassay.
Results
- The serum total calcium concentration in donkeys was found to consist of protein-bound calcium, ionized calcium, and complexed calcium.
- The serum total magnesium concentration was fractionated into protein-bound magnesium, ionized magnesium, and complexed magnesium.
- The concentrations of inorganic phosphorus, Parathyroid hormone, and calcitriol in serum were also determined and recorded.
Conclusion
- The research found that the serum variables of mineral metabolism in donkeys were within the reference ranges for horses, indicating similarities in the mineral metabolism between the two species.
- There were, however, some differences found when donkeys were compared with horses. The donkeys displayed higher levels of ionized calcium, complexed magnesium, and calcitriol, while having lower concentrations of protein-bound magnesium and Parathyroid hormone.
These results might be useful for future studies regarding mineral metabolism in donkeys and could potentially influence health management and diet considerations for this species.
Cite This Article
APA
Lopez I, Estepa JC, Mendoza FJ, Rodriguez M, Aguilera-Tejero E.
(2006).
Serum concentrations of calcium, phosphorus, magnesium and calciotropic hormones in donkeys.
Am J Vet Res, 67(8), 1333-1336.
https://doi.org/10.2460/ajvr.67.8.1333 Publication
Researcher Affiliations
- Department of Medicina y Cirugia Animal, Universidad de Cordoba, Campus Universitario Rabanales, Ctra Madrid-Cadiz km 396, 14014 Cordoba, Spain.
MeSH Terms
- Animals
- Calcitriol / blood
- Calcium / blood
- Equidae / blood
- Horses / blood
- Magnesium / blood
- Parathyroid Hormone / blood
- Phosphorus / blood
Citations
This article has been cited 1 times.- Sanmartí J, Armengou L, Troya-Portillo L, Robles-Guirado JÁ, Bassols A, Ríos J, Jose-Cunilleras E. Plasma-Ionized Magnesium in Hospitalized Horses with Gastrointestinal Disorders and Systemic Inflammatory Response Syndrome.. Animals (Basel) 2022 Jun 7;12(12).
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