The values of organic and inorganic blood parameters in dairy cows during the peripartal period
2010
Djokovic, R., Faculty of Agronomy, Cacak (Serbia) | Ilic, Z., Faculty of Agriculture, Zubin Potok (Serbia) | Kurcubic, V., Faculty of Agriculture, Zubin Potok (Serbia) | Doskovic, V., Faculty of Agronomy, Cacak (Serbia)
The objective of this study was to evaluate organic and inorganic blood parameters, i.e. indicators of metabolic condition in dairy cows (n=30) during the peripartal period. The cows were divided into two groups. The first group (n=15) comprised clinically healthy prepartal cows, and the second one included clinically health postpartal cows (n=15). Blood samples were taken from all the examined dairy cows. Blood glucose levels were statistically significantly lower in the puerperal cows than in the late pregnant ones, suggesting an increased glucose uptake by the mammary gland and decreased gluconeogenesis in the liver. Significantly lower blood levels of triglyceride, total protein, albumin and urea were found in the puerperal cows, which suggested the decreased synthetic capacity of liver cells. Blood bilirubin levels were significantly higher in the puerperal cows than in the late pregnant cows clearly indicated the decreased excretory capacity of the liver. The analysis of the blood parameters as indicators of the functional capacity of liver cells suggested that puerperal cows revealed different degrees of fatty liver, as opposed to the late pregnant cows, in which the morphological and functional capacity of hepatocytes was preserved. Blood calcium, phosphorus and magnesium levels in the postpartum cows were lower, which suggesting a reduced supply from alimentary sources and/or increased utilization by the mammary gland.
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