Authors:
A. S. PLETENTZOVA, postgraduate student of the department of physiology, surgery and obstetrics,
V. S. SKRIPKIN, candidate of veterinary sciences, associate professor of the department of physiology, surgery and obstetrics, dean of the faculty of veterinary medicine and technological management,
I. Yu. TSYMBAL, postgraduate student of the department of physiology, surgery and obstetrics,
A. N. Kvochko, doctor of biological sciences, professor, head of the department of physiology, surgery and obstetrics,
Stavropol State Agrarian University (12 Zootechnicheskiy lane, 355000, Stavropol).
Abstract. Stavropol Krai, where sheep-breeding is developed, in particular in its Eastern area (Apanasenkovskom, Arzgirskogo, levokumskiy, Neftekumsk, Turkmen districts), is an endemic region for iodine. The study of blood composition is one of the most important indicators that characterize the physiological state of animals and their adaptive capacity, especially in endemic areas. The aim of the study was to study the morphological and functional parameters of blood of sheep during pregnancy and after childbirth in the Eastern (iodine deficiency) zone of the Stavropol territory. Research was carried out in 2016–2018 in sheep farms located in the Eastern zone of the Stavropol territory and in the Scientific-diagnostic and Medical-veterinary Center of Stavropol State Agrarian University. For research, the object was the blood of clinically healthy sheep of the Stavropol breed, taken before insemination, on the 90th and 135th days of pregnancy and in the postpartum period. As a result of researches it is established that at sheep of Stavropol breed in the conditions of an endemic zone of Stavropol Krai on iodine the highest values of quantity of erythrocytes and leukocytes are noted during pregnancy on the 90th day that testifies to activation of hemo- and leukopoiesis. Hemoglobin levels were higher in late pregnancy (135th day), and hematocrit number was higher in sheep before insemination and in the future it tends to decrease. The studied morphofunctional blood parameters in sheep after childbirth were the lowest compared to the blood levels of sheep before insemination and during pregnancy.
Keywords: blood, sheep, pregnancy, postpartum period, iodine, endemic zone, hematopoiesis, homeostasis, adaptation.
Download the full text of the article.
