Blood Sugar and Protein Levels in the Milk of Dairy Cattle Based on Their Physiological State

Abstract

This study aimed to determine the correlations between blood glucose levels, milk protein levels, and the physiological status of cows in four categories within the Research and Development Unit for Cattle Farming in Dancu, Iași (pregnant cows aged between 4-6 years; cows aged 3-5 years, in the 3rd and 5th month of gestation, and were clinically healthy; cows aged 5-6 years, at 48 hours postpartum, and clinically healthy; cows aged 4-6 years, in the 3rd month of lactation, with subclinical mastitis). The results revealed blood glucose values ranging from 28.81±7.15 mg/dl to 50.34±10.31 mg/dl, which are within the normal range for the physiological state of the cows in these groups. The protein percentage ranged from 2.71% to 7.29%, with the lowest value observed in cows with subclinical mastitis and the highest in those in the colostrum period; these results indicate normal values for their specific stages. The findings demonstrate that the studied parameters align with the physiological state of the analysed cows. Overall, the results underscore the importance of metabolic monitoring and the enhancement of housing conditions for dairy cows in this unit.

Keywords

• blood
• cattle
• glucose
• milk
• protein