TABLE 3.
Mean serum magnesium concentrations in cows presenting abortion, downer cow syndrome and dystocia in different breeds.
| Condition | Breed | Mg (Mean ± SE) | p |
|---|---|---|---|
| Abortion | Afrikaner | 0.57 ± 0.19* | 0.0033 |
| Bonsmara | 0.61 ± 0.32 | 0.1231 | |
| Brahman | 0.67 ± 0.13 | 0.1000 | |
| Drakensberger | 0.67 ± 0.26 | 0.1518 | |
| Nguni | 0.84 ± 0.23 | 0.1250 | |
| Downer cow syndrome | Charolaise | 0.46 ± 0.33 | 0.1637 |
| Mixed | 1.33 ± 0.23** | < 0.0001 | |
| Dystocia | Mixed | 2.12 ± 0.23*** | < 0.0001 |
Note: Low mean concentrations of magnesium were observed in aborting (0.57 ± 0.19 mmol/L) Afrikaner cows (p < 0.05), as shown in Table 3. In addition, high mean concentrations of magnesium in mixed breed cows were detected in downer cow syndrome (1.33 ± 0.23 mmol/L) and dystocia (2.12 ± 0.23 mmol/L) cases, as indicated in Table 3.
Mg, magnesium.
, Means with superscripts in each row are significantly different (p < 0.05). Magnesium reference range (0.6–1.2 mmol/L) was extracted from Ode, Adamu & Saror (2017).