National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Present study was carried out to compare serum enzymatic, lipid and blood metabolic profile of Holstein Friesian crossbred cows with and without low solids-not-fat syndrome. The California Mastitis Test (CMT) negative Holstein Friesian crossbred cows in their 3rd and 5th lactation were selected for the study. Twenty four HF crossbred cows were divided into four groups viz., Group I (3rd lactation HF crossbred cows with normal milk SNF), Group II (3rd lactation HF crossbred cows with low milk SNF), Group III (5th lactation HF crossbred cows with normal milk SNF) and Group IV (5th lactation HF crossbred cows with low milk SNF) with six animals in each group. Blood samples collected from all the animals during 4th and 8th week of 3rd and 5th lactations were utilized for determination of blood glucose, blood β-hydroxybutyric acid (BHBA), serum enzyme activities, lipid profile and total serum protein. At 3rd lactation, significantly (P<0.05) higher ALP activity and HDL-Cholesterol level were observed in normal SNF cows compared to low SNF cows. Significantly (P<0.05) lower ALT activity was observed in normal SNF cows at both 4th and 8th week of 3rd lactation. At 5th lactation, blood glucose levels was significantly (P<0.05) higher in normal SNF cows compared to low SNF cows at both 4th and 8th week of lactation. Significantly higher lactate dehydrogenase (LDH) activity was found at 4th week and cholesterol was significantly higher at 8th week of 3rd lactation. Triglycerides and total serum protein were significantly higher in normal SNF cows at 8th week of both the lactations. From the study it is concluded that the decreased blood glucose level in low SNF groups could be a major reason for low SNF syndrome in HF crossbred cows.
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