Physiological Activity of Platelet Aggregation in Calves of Vegetable Feeding
Oshurkova Ju. L1 and Glagoleva T. I.2

1Federal State Budgetary Educational Institution for Higher Professional training "Vologda State Dairy Farming Academy named after N.V. Vereshchagin", Vologda, Russia.

2All-Russian Research Institute of Physiology, Biochemistry and Nutrition of Animals, Institute of village, Borovsk, Russia.

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Abstract: At present it is acknowledged that platelets’ activity is very significant in provision of blood microrheology. In this connection, monitoring of their indices in different fields of medicine and biology is used more and more actively. The aim of our research is to clear out peculiarities of platelet activity in healthy Ireshire calves during the phase of vegetable feeding of early ontogenesis. The study used 42 Ireshire calves of vegetable feeding at stock-farm “PlemzavodMajskiy” in Vologda region (Russia). The animals were examined 4 times: at the age of 3 months, at the age of 6 months, at the age of 9 months and at the age of 12 months. We applied hematological and statistical methods of investigation. While aging the animals were noted to have strengthening of platelets’ aggregation in response to all the applied aggregation inductors. The most active aggregation of their platelets was noticed in response to adenosine diphosphate. Collagen and ristomicin aggregation had less evidence in them and less degree of rising. It pointed indirectly at low availability of collagen and little concentration of von Willebrand Factor in it. Deaggregating platelets’ abilities in response to all the applied inductors in examined calves had a tendency to growth. Found low platelets’ aggregation in Ireshire calves at the age between 3 and 12 months of life provided optimal conditions for blood supply of their internals during their growth and development.

Keywords: Platelets; calves; vegetable feeding; Ireshire (breed)

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