Показатели биохимического и гормонального исследования крови коров с нарушениями воспроизводительных функций | Indices of biochemical and hormonal tests of blood of cows with disorders of reproductive functions
2013
Guminskaya, E.Yu., Mozyr State Pedagogical Univ. (Belarus)
The researches have established that synthesis of hormone IGF-I is reduced to 3.52 ng/ml in blood of cows with a disorder of liver tissue capacity causing the decrease of estradiol to 10.36 ng/l and progesterone to 0,17 ng/ml. With the increase of cortisol to 71.61 ng/ml the concentration of IGF-I is reduced to 3.74 ng/ml, estradiol – to 27.81ng/l. At the same time, the concentration of progesterone increases to 2.22 ng/ml. As a result, follicular development slows down, and yellow bodies don't undergo atresia. All this increases the service period, the number of inseminations and reduces milk producing ability of the animals.
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