Authors: E. S. Sleptsov, N. V. Vinokurov, V. I. Fedorov
Yakut Research Institute of Agriculture named after M. G. Safronov, Yakutsk, Russia E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. Purpose. Examination of the thyroid and adrenal glands in the postpartum period in reindeer. Methods. The objects of the study were morphological changes of the thyroid gland and adrenal glands in the postpartum period. Measurements and weighing are carried out, the state of glands is described. At the same time studied the condition of the genital organs doe some morphological changes, bearing in mind the relation of these glands to the reproductive function. Results. The obtained data on thyroid weight pregnant doe averaged 5.7 g doe in parturition – 45 g, 22–28 days after parturition – 8.9 and 7.3 g (individual animals may be individual differences). The weight of the adrenal glands increases to 5 days of puerperium by almost 1.5 times (2.8–4.8), then decreases to initial values, the size of this organ changes slightly. Thyroid gland pregnant doe and killed in 1–3 days after birth contains different size follicles. In the adrenal glands, the glomerular zone of the cortical substance is thicker than that of the stele doe. On the fifth day of the postpartum period in the ovaries, the largest number of follicles was noted, at the same time, the mass increases and the structure and vascularization of the adrenal glands changes, and in the thyroid gland, on the contrary, the mass decreases, a large number of small follicles are found, which indicates its increased function. Thus, studies have shown significant changes in the size and weight of the adrenal glands and thyroid gland in the postpartum period in reindeer. The scientific novelty is the change in the size and weight of the adrenal glands and thyroid gland of deer in the postpartum period.
Keywords: reindeer, reindeer herding, reproduction, rut, calving, herd, mating, thyroid, adrenal, ovaries.
For citation: Sleptsov E. S., Vinokurov N. V., Fedorov V. I. Issledovaniye shchitovidnoy zhelezy i nadpochechnikov v poslerodovom periode u severnykh oleney [The study of the thyroid gland and the adrenal gland in the postpartum period in reindeer] // Agrarian Bulletin of the Urals. 2019. No. 10 (189). Pp. 47‒53. DOI: 10.32417/article_5db430d22b9f98.51933715. (In Russian.)
