Authors: V. I. KOSILOV, doctor of agricultural sciences, professor, Orenburg State Agrarian University (18 Chelyuskintsev str., 460014, Orenburg; phone: 8 919 840-23-01; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.), O. A. BYKOVA, doctor of agricultural sciences, аssociate professor, Ural State Agrarian University (42 K. Liebknekhta Str., 620075, Ekaterinburg; phone: 8 950 542-94-34; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.), T. A. IRGASHEV, doctor of agricultural sciences, chief researcher, Tajik Academy of Agricultural Sciences (17 Giprozemgorodok, 734067, Republic of Tajikistan, Dushanbe; phone: 8 10 992 918 422-034, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.), I. V. MIRONOVA, doctor of biological sciences, associate professor, Bashkir State Agrarian University (34 50-letiya Oktyabrya Str., 450001, Ufa; phone: 8 919 619-75-73; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Keywords: sheep, breed, Finnish Landrace, Pamir fine-wool, temperature.
Abstract: The article presents data showing changes in the physiological functions of Finnish Landrace sheep imported from Estonia compared to the Pamir fine-wool group of sheep. It was found that the Finnish bright increases the overall level of metabo- lism in the daytime at high temperature (average 33–35 °C), solar radiation and relative humidity (53–48 %) compared with the morning (20,1–25,3 °C). The body temperature in the daytime in young Pamir fine-wool breed reaches the upper limit of the norm, and the analogs of the breed Finnish Landrace even higher than normal. Respiratory rate is 5 times higher than in the morning. At high external temperature and intense radiation in the bright Pamir fine-wool breed respiration rate increases more than twice, body temperature increases by 1,3 and 1,1 °C. The overall level of metabolism and oxidation processes in sheep Pamir fine-wool breed higher. The depth of the character and type of respiration of sheep of the Pamir fine-wool breed decreases at a lower frequency and volume of pulmonary ventilation compared to the Finnish Landrace breed. Skin tempera- ture in Finnish bright in the daytime in different parts of the body ranges from 38,1–41,8 °C; it should be noted that the highest temperature was in the back and shoulder. The Pamir sheep fine-wool breeds with solar radiation, high daytime temperatures is more pronounced the function of sweat production in comparison with analogues of the breed Finnish Landrace.
