SOME BIOCHEMICAL-CHANGES IN RELATION TO POSTPARTUM OVARIAN ACYCLICITY IN DAIRY-COWS

This study was conducted on 22 Friesian-Holstein and crossbred dairy cows. Of these 12 had anoestrum, and 10 normal cyclic peers were served as control. Blood samples were collected from all animals. Sera were harvested and freezed at-20-degrees-C until assayed for glucose, cholesterol, phospholipids and total proteins and their fractions. Statistical analysis revealed significant lower values in serum glucose (55.82+/-2.75 vs 69.42+/-3.52 mg/100 mL), cholesterol (169.25+/-4.79 vs 190+/-72+/-5.47 mg/100 mL) and phospholipids (182.86+/-3.45 vs 204.72+/-4.69 mg/100 mL) than in cows having ovarian inactivity than the normal control ones. Significant variation (P<0.01) was noticed between serum values of the total proteins in anoestrus cows (6.03+/-0.01 g\%) and the control herd mates (8.01+/-0.15 mg\%). All protein fractions were significantly lesser than the control ones except the albumin which was insignificant. It could be deduced that metabolic profiles of glucose, cholesterol, phospholipids and total proteins and their fractions may play a vital role as a possible incriminating aetiological factor for ovarian acyclicity in dairy cows.