Authors:
S. N. LUTSUK, doctor of veterinary sciences, professor,
V. V. MIKHAYLENKO, candidate of veterinary sciences, associate professor,
A. N. LOGVINOV, candidate of veterinary sciences,
Stavropol State Agrarian University (12 Zootechnikhniy Av., 355017, Stavropol; е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.).
Abstract. Studies of morphological changes in testicles of sheep under in utero and postnatal infection with anaplasmosis have been carried out. Studies were conducted in the farm of Novoaleksandrovsky district of the Stavropol Territory on sheep of the Caucasian breed. The studies were conducted in the training and experimental farm in 2012–2013 in a flock of sheep of the North Caucasian breed aged 4–5 years. Weighing of lambs was carried out at birth, at 1 and 3 months old. In both of the flocks of the sheep were formed by 2 groups, 20 rams each. In the first group were selected sheep with a reduced weight, in the second — sheep with normal weight at birth. Weighing was carried out in both flocks at birth, and in the conditions of a training and experimental farm — at birth, at one and three months old. In addition, sheep and ewes were given smears of periphery blood from the tip of the ear to establish anaplasmosis from the tip of the ear, which, after fixation in alcohol ether, were stained by Romanovsky-Giemsa and a new method of staining blood smears. Blood smears were examined under a microscope at a 900-fold increase along the lower and upper edges. When parasites were detected in erythrocytes, the intensity of infestation was determined by counting their number in 20 fields of vision and expressed as a percentage of the number of red blood cells in these fields of vision. Pathoanatomical changes in testicles of adult rams with acute anaplasmosis typical for acute parenchymatous orchitis were revealed. With a prolonged course in the stroma of the testis, connective tissue growth is found. In bunnies up to 3 months of age, born from sheep-anaplasmic carriers, pathomorphological changes in the testes are characterized as chronic proliferative interstitial orchitis. In six-month old sheep and older in the testes, the parenchymal orchitis develops.
Keywords: sheep of the North-Caucasian breed, anaplasma barans, anaplasmosis, testes, parenchymatous orchitis.
