Activity of platelet hemostasis in newborn calves
2011
Medvedev, I. N. | Zavalishina, S. Yu
Healthy newborn Simmental and Black Pied calves with a normal number of platelets in bloodstream don’t have reliable dynamics of the aggregation function of blood platelets with adenosine diphosphate, collagen, thrombin, ristocetin, epinephrine, as well as combinations of ADP + epinephrine, ADP + collagen, and collagen + epinephrine inducers. The level of discocytes in blood on days 1–2 was 78.5, not reliably changing until the end of the neonatal stage. In this case, the number of disco-echinocytes, spherocytes, spheroechinocytes, and bipolar forms of platelets in the bloodstream remained stably low. Maintenance during colostrum feeding of a low intensity of metabolism of endogenous arachidonic acid in platelets and of a low content of ATP, ADP, actin, and myosin in them can be considered important mechanisms providing stability of platelet aggregation activity in calves in the neonatal stage.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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