Associations among milk production traits and glycosylated haemoglobin in dairy cattle; importance of lactose synthesis potential

摘要: Glucose is the major precursor of lactose synthesis in mammary gland. Lactose carbohydrate and osmolyte milk, controls milk volume its concentration. Glycosylated haemoglobin (HbG) a retrospective measure mean blood glucose level it largely unaffected by recent physiological conditions environmental events. The purposes this study were to determine correlations between traits other production dairy cattle investigate whether HbG can be correlated with traits. Here, percentage, including yield, lactose, protein, SNF, total solid fat percentages yields measured 485 second calved Iranian Holstein cattle. Statistically significant negative established yield (r=�0.88), (r=�0.83), SNF (r=�0.81), protein (r=�0.79) (r=�0.74). Positive (r=0.96), (r=0.81), (r=0.92) (r=0.79) yields. correlation