Wolańczyk-Rutkowiak K
Zakład Higieny Weterynaryjnej w Gdańsku.
Pol Arch Weter. 1986;26(3-4):125-47.
In six consecutive feeding seasons the results of tests of biochemical parameters from 5329 cows were estimated. Besides, the parameters from 7229 cows for the consecutive calendar months and years in the period of 1973-1977 were evaluated. It was established that the cyclic seasonal changes were showed only by levels of proteins, sodium, magnesium and calcium. In the months from May to August a decrease of glucose level, an increase of total protein and urea levels as well as a low level of sodium existed. The values of the rest parameters changed irregularly, what ordered to be cautious in a drawing of conclusions on the basis of investigations performed in short periods of times. In particular seasons and years, such phenomena as hypoglycemia, hyperproteinemia, increased level of urea, hypochloremia, hypopotassemia, hypomagnesemia, hypocalcemia and hypophosphoremia could exist irregularly.
在连续六个饲养季节中，对5329头奶牛的生化参数测试结果进行了评估。此外，还对1973年至1977年期间连续日历月和年份的7229头奶牛的参数进行了评估。结果表明，只有蛋白质、钠、镁和钙的水平呈现出周期性的季节性变化。在5月至8月期间，葡萄糖水平下降，总蛋白和尿素水平升高，钠水平较低。其余参数的值变化不规则，因此在基于短时间内进行的调查得出结论时应谨慎。在特定的季节和年份，可能会不定期出现低血糖、高蛋白血症、尿素水平升高、低氯血症、低钾血症、低镁血症、低钙血症和低磷血症等现象。
