Prepartal platelet count and fibrinogen concentration in dairy cows with and without retained placenta
Аутори
Lužajić, TijanaKatić, Marko
Danilović Luković, Jelena
Blond, Bojan
Bogdanović, Dragan
Kovačević Filipović, Milica
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Although extensive data are available on leukocyte changes in prepartal period in cows with
and without retained placenta, there is no data describing changes in platelet count. The aim of
this study was to define changes in platelet count in cows, with and without retained placenta,
three weeks before and one day after calving. Using fibrinogen level as a general reference to
cow's health, we also tested the hypothesis that cows, that develop placenta retention in
prepartal period, have a subclinical systemic inflammatory reaction. Blood samples taken from
14 Holstein cows were analyzed, three times in a week interval before and 24 hours after
calving. After calving, cows were retrospectively divided, in the group without (n=9) and the
group with retained placenta (n=5). Clauss method was used for determination of fibrinogen
concentration and blood smear examination for assessment of platelet count. The results have
shown that retained placenta is associated with increase in... platelet count seven days before
calving and decrease in platelet count 24 hours after calving comparing to precalving values.
The week before calving group of cows, that developed retained placenta had platelet count
significantly higher, comparing to control group of cows. Fibrinogen level was not significantly
different between groups. The recorded increase in platelet count, one week before calving can
be related to unidentified stress factors, and decrease of platelet count 24 hours after calving,
can be explained by their increased consumption, due to activation of haemostatic mechanisms
after placenta abruption.
Кључне речи:
cattle / fibrinogen / platelets / prepartal period / stressИзвор:
XIII Middle European Buiatric's Congress, Belgrade, June 5-8, 2013, 2013, 437-441Издавач:
- Faculty of Veterinary Medicine, University of Belgrade, Serbia
Финансирање / пројекти:
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Lužajić, Tijana AU - Katić, Marko AU - Danilović Luković, Jelena AU - Blond, Bojan AU - Bogdanović, Dragan AU - Kovačević Filipović, Milica PY - 2013 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2502 AB - Although extensive data are available on leukocyte changes in prepartal period in cows with and without retained placenta, there is no data describing changes in platelet count. The aim of this study was to define changes in platelet count in cows, with and without retained placenta, three weeks before and one day after calving. Using fibrinogen level as a general reference to cow's health, we also tested the hypothesis that cows, that develop placenta retention in prepartal period, have a subclinical systemic inflammatory reaction. Blood samples taken from 14 Holstein cows were analyzed, three times in a week interval before and 24 hours after calving. After calving, cows were retrospectively divided, in the group without (n=9) and the group with retained placenta (n=5). Clauss method was used for determination of fibrinogen concentration and blood smear examination for assessment of platelet count. The results have shown that retained placenta is associated with increase in platelet count seven days before calving and decrease in platelet count 24 hours after calving comparing to precalving values. The week before calving group of cows, that developed retained placenta had platelet count significantly higher, comparing to control group of cows. Fibrinogen level was not significantly different between groups. The recorded increase in platelet count, one week before calving can be related to unidentified stress factors, and decrease of platelet count 24 hours after calving, can be explained by their increased consumption, due to activation of haemostatic mechanisms after placenta abruption. PB - Faculty of Veterinary Medicine, University of Belgrade, Serbia C3 - XIII Middle European Buiatric's Congress, Belgrade, June 5-8, 2013 T1 - Prepartal platelet count and fibrinogen concentration in dairy cows with and without retained placenta EP - 441 SP - 437 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2502 ER -
@conference{ author = "Lužajić, Tijana and Katić, Marko and Danilović Luković, Jelena and Blond, Bojan and Bogdanović, Dragan and Kovačević Filipović, Milica", year = "2013", abstract = "Although extensive data are available on leukocyte changes in prepartal period in cows with and without retained placenta, there is no data describing changes in platelet count. The aim of this study was to define changes in platelet count in cows, with and without retained placenta, three weeks before and one day after calving. Using fibrinogen level as a general reference to cow's health, we also tested the hypothesis that cows, that develop placenta retention in prepartal period, have a subclinical systemic inflammatory reaction. Blood samples taken from 14 Holstein cows were analyzed, three times in a week interval before and 24 hours after calving. After calving, cows were retrospectively divided, in the group without (n=9) and the group with retained placenta (n=5). Clauss method was used for determination of fibrinogen concentration and blood smear examination for assessment of platelet count. The results have shown that retained placenta is associated with increase in platelet count seven days before calving and decrease in platelet count 24 hours after calving comparing to precalving values. The week before calving group of cows, that developed retained placenta had platelet count significantly higher, comparing to control group of cows. Fibrinogen level was not significantly different between groups. The recorded increase in platelet count, one week before calving can be related to unidentified stress factors, and decrease of platelet count 24 hours after calving, can be explained by their increased consumption, due to activation of haemostatic mechanisms after placenta abruption.", publisher = "Faculty of Veterinary Medicine, University of Belgrade, Serbia", journal = "XIII Middle European Buiatric's Congress, Belgrade, June 5-8, 2013", title = "Prepartal platelet count and fibrinogen concentration in dairy cows with and without retained placenta", pages = "441-437", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2502" }
Lužajić, T., Katić, M., Danilović Luković, J., Blond, B., Bogdanović, D.,& Kovačević Filipović, M.. (2013). Prepartal platelet count and fibrinogen concentration in dairy cows with and without retained placenta. in XIII Middle European Buiatric's Congress, Belgrade, June 5-8, 2013 Faculty of Veterinary Medicine, University of Belgrade, Serbia., 437-441. https://hdl.handle.net/21.15107/rcub_rimsi_2502
Lužajić T, Katić M, Danilović Luković J, Blond B, Bogdanović D, Kovačević Filipović M. Prepartal platelet count and fibrinogen concentration in dairy cows with and without retained placenta. in XIII Middle European Buiatric's Congress, Belgrade, June 5-8, 2013. 2013;:437-441. https://hdl.handle.net/21.15107/rcub_rimsi_2502 .
Lužajić, Tijana, Katić, Marko, Danilović Luković, Jelena, Blond, Bojan, Bogdanović, Dragan, Kovačević Filipović, Milica, "Prepartal platelet count and fibrinogen concentration in dairy cows with and without retained placenta" in XIII Middle European Buiatric's Congress, Belgrade, June 5-8, 2013 (2013):437-441, https://hdl.handle.net/21.15107/rcub_rimsi_2502 .