Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

The Journal is included in the list of the leading peer-reviewed scientific journals and publications, which should be published by the main results of theses for the degree of doctor and Ph.D.
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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 05 (184) 2019

Биология и биотехнологии

Миронова И. В. кандидат биологических наук, старший преподаватель кафедры технологии мяса и молока Башкирский ГАУ

Быкова О. А. доктор сельскохозяйственных наук, доцент, начальник управления по научно-исследовательской работе Уральский государственный аграрный университет

Косилов В. И. доктор сельскохозяйственных наук, профессор Оренбургский государственный аграрный университет

Иргашев Т.А. доктор сельскохозяйственных наук, главный научный сотрудник Институт животноводства Таджикской академии сельскохозяйственных наук

УДК:636.3.033

The change in physiological functions of sheep breeds finnish landrace in the early stages of acclimatization, under the influence of high temperature environment

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 metabolism 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 temperature 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.


Keywords:

sheep, breed, Finnish Landrace, Pamir fine-wool, temperature


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