Biochemical profiles to forecast post- parturient paresis in cross bred cows
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Date
2005-08
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The present investigation was undertaken to record the prevalence of post parturient paresis, to evaluate biochemical profiles in peri parturient crossbred cows and to study shift in normal pattern of the profiles to identify the metabolic markers to forecast the occurrence of parturient paresis. The prevalence was computed on the basis of records collected from Veterinary Teaching Hospital, Pantnagar and State Veterinary Hospitals around Pantnagar for a period of five years from 2000 to 2004. Of 26802 cases in crossbred cows, 254 (0.95 percent) were found to be having metabolic disorders out of which 152 (59.84 percent) were of post parturient paresis. Highest prevalence of post-parturient paresis was recorded in the winter season. The blood and urine samples were collected at 48 hrs pre calving and 24, 48 and 72 hrs post calving in healthy cows and 48 hrs pre calving and 24, 48 hrs and at the time of the disease in the affected cows. In this study in healthy cows the plasma calcium, plasma inorganic phosphorous, plasma creatinine, plasma calcium and inorganic phosphorous ratio and urinary creatinine did not differ significantly at 48 hrs pre calving and 24, 48 and 72 hrs post calving, whereas the urinary hydroxyproline and the ratio between urinary hydroxyproline and urinary creatinine increased at 24, 48 and 72 hrs post calving in comparison to the 48 hrs pre calving. In cows developing post parturient paresis the plasma calcium decreased significantly at 24 and 48 hrs post calving and at the time of disease in comparison to the levels at 48 hrs pre calving in paretic and healthy cows. Plasma inorganic phosphorous concentrations decreased at the time of disease in comparison to the concentration at 48 hrs pre calving. Plasma Ca:iP ratio at 24 hrs post calving and at the time of disease decreased significantly in comparison to the ratio at 48 hrs pre calving of affected cows and 24 and 48 hrs post calving of healthy cows. Urinary hydroxyproline and ratio between urinary hydroxyproline and urinary creatinine decreased significantly at 24 and 48 hrs post calving and at the time of disease. The findings of the study will be of immense use in monitoring sub clinical parturient hypocalcaemia and as an aid to forecast the occurrence of parturient paresis for evolving the specific control programmes.
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