SERUM ENZYMATIC AND LIPID PROFILE IN HOLSTEIN FRIESIAN CROSS BRED COWS WITH LOW SOLIDS-NOT-FAT SYNDROME
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Date
2017-09
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
The present study was conducted to estimate the enzymatic activities, lipid and
blood metabolic profile in Holstein Friesian crossbred cows at 3rd and 5th lactation.
Twenty four cows were divided into four groups with each group comprising of six
animals based on lactation number and the milk SNF content. Group I, II, III and IV
comprised of cows of 3rd lactation with normal milk SNF content, cows of 3rd lactation
with low milk SNF content, cows of 5th lactation with normal milk SNF content and cows
of 5th lactation with low milk SNF content, respectively. The blood and serum samples
were collected from each animal at 4th and 8th week of lactation that were analyzed for
blood glucose, blood β-hydroxy butyric acid, serum enzyme activities such as AST, ALT,
ALP and LDH, lipid profile components and total serum protein. At 3rd lactation,
significantly (P<0.05) higher ALP and HDL-C was noted in normal SNF cows compared
to low SNF cows. Significantly lower activity of ALT was found in normal SNF cows at
both 4th and 8th week of 3
rd lactation. At 5th lactation, blood glucose was significantly
higher in normal SNF cows compared to low SNF cows at both 4th and 8th week of
lactation. AST, LDL-C, VLDL-C and BHBA did not vary significantly between groups.
LDH was significantly higher at 4
th week and cholesterol was significantly higher at 8
th
week of 3rd lactation. Triglycerides and total serum protein were significantly higher in
normal SNF cows at 8th week of both the lactations. It was concluded that the decreased
blood glucose level in low SNF groups could be a reason for low SNF syndrome in HF
crossbred cows.