Investigations on haemato-biochemical indicators in romanian black and spotted dairy cows with retained placenta – preliminary results
2021
Enculescu, Marinela | Škrbić, Zdenka
This study was carried out to investigate the effects of retained placenta (RP) in dairy cows on haemato-biochemical indicators. Experiments were conducted at the Experimental Farm of the Research and Development Institute for Bovine Balotesti using 40 multiparous Romanian Black and Spotted dairy cows, which were divided into two groups, cows with retained placenta (experimental, n=16) and the control group (n=24), between 2019 and 2020. Each group was fed with the same diet and had free access to water and mineral blocks. Results were expressed as mean±standard deviation (SD) and minimum-maximum range values. The independent means t-test was applied for comparisons between the control (C) group and the retained placenta (RP) group. Pearson’s coefficients were utilized to test the correlations between the main blood indicators. Cows with retained placentas showed a significant decrease in RBC (p=0.0451), HGB (p=0.0000), MCH (p=0.0000), MCHC (p=0.0012) and WBC (p=0.0001), compared with the control group. Whereas the LY (p=0.0551), MO (p=0.0000) and NE (p=0.0273)concentrations of cows with retained placentas were significantly higher than those of healthy cows. The AST and ALT serum concentrations of cows with retained placenta were significantly higher than those of cows from the control group(p=0.0000). Regarding urine analysis, no significant changes were found between the two groups studied. In conclusion, the obtained preliminary results suggest that blood indicators could be useful for risk prediction of retained placenta in dairy cows, while further research is needed on correlations between blood constituents and retained placent
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