Physiological Comparison of Some Serum Biochemistry between Lactating and Non-Lactating Dairy Cows in Selected Dairy Farms of Dhaka District of Bangladesh

Sajibul Hasan

doi:10.47191/ijcsrr/v4-i1-09

Abstract

The present study was carried out to investigate the physiological comparison of some serum biochemistry between lactating and non-lactating dairy cows in selected dairy farms of Dhaka district of Bangladesh. The aim of the current study was to evaluate the serum parameters like glucose, total protein, total cholesterol, calcium and phosphorus concentration and these parameters were measured by the serum analyzer for lactating (n=50) and non-lactating (n=50) dairy cattle which were selected from various selected dairy farms of Dhaka district. The results (mean ± standard deviation) of the study showed that among the serum biochemical parameters total protein (84.2±1.18 gm/l) and total cholesterol (156.36± 3.41 mg/dl) level in non-lactating cows were higher than the value of lactating cows as (80.14±2.31 gm/l) and (138.21± 1.21 mg/dl). On the other hand, serum glucose, calcium and phosphorus level in lactating cows (68.12± 2.34 mg/dl), (12.06±3.21 mg/dl) and (8.30±0.20 mg/dl) respectively were found higher than the non-lactating cows (60.32 ±1.42 mg/dl), (10.48±5.60 mg/dl) and (6.31 ±0.12 mg/dl). In case of parity-wise biochemical parameters were insignificant variation was found. It may be concluded that biochemical parameters variation present between lactating cow and non-lactating cow is important for interpretation of laboratory data and also for physiological diagnosis.

Highlights

Blood biochemical attributes are important indicators of the metabolic activity in lactating animals (Karapehlivan et al, 2007)
The mammary gland secretory cells utilize 80% of the blood metabolites for milk synthesis depending on the infiltration of precursors of milk components like amino acids, glucose and fatty acids (Piccione et al, 2009)
Findings for serum glucose, calcium and phosphorus level were within the reference range and their variations were insignificant (Table 1)

Summary

Introduction

Blood biochemical attributes are important indicators of the metabolic activity in lactating animals (Karapehlivan et al, 2007). Secretary cells of mammary gland utilize 80% of the blood circulating metabolites for milk synthesis, depending on the speed of infiltration of precursors of milk compounds (i.e. free amino acids, glucose and fatty acids). The outcome of various biochemical activities in mammary secretary cell is composed of fat, protein, carbohydrates, enzymes, vitamins and various minerals. The fat, protein and urea contents of milk vary according to stage of lactation. The mammary gland secretory cells utilize 80% of the blood metabolites for milk synthesis depending on the infiltration of precursors of milk components like amino acids, glucose and fatty acids (Piccione et al, 2009). Blood biochemical parameters including total protein, triglycerides, free fatty acids and urea are important indicators of the metabolic activity in lactating animals (Karapehlivan et al, 2007). Some variation has been observed in the hematological parameters between breeds of farm animals (Tambuwal et al, 2002), in this regard, it may be difficult to formulate a universal blood

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