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Relations between the concentration of glucose and urea in blood plasma and the qualitative ejaculate parameters were investigated in 24 breeding bulls (13 Holstein and 11 Czech Spotted) over a 12-month period. The average concentrations of plasma glucose and urea were 3.32 mmol ∙ 1⁻¹ and 3.57 mmol ∙ 1⁻¹ , respectively. No statistically significant differences in the concentrations of glucose and...
Blood samples were taken from 134 Holstein cows between day 20 to 100 postpartum to determine the concentration of urea, cholesterol, glucose and total lipids and to define their relation to the reproductive performance traits: interval (I), service period (SP) and insemination index (II). Investigations were carried out in monthly intervals from October 1996 to October 1997. Average values of plasma...
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