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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2017; 63(6): 60-65


REGULATION MECHANISMS OF CORTISOL LEVEL IN PIGS’ BLOOD SERUM UNDER STRESS

O. V. Danchuk, V. I. Karpovskyі, V. О. Trokoz, R. V. Postoі

    National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz63.06.060

Abstract

The results of investigation the relationship and mutual influence of main features of cortical processes with cortisol level in pigs’ blood serum under technological stress are shown. Technological stress is accompanied by increase concentrations of this hormone in pigs’ blood serum in 2.3–2.7 times depending on the typological characteristics of its nervous system. In animals of weak type of higher nervous activity during one month after exposure to technological stimulus the cortisol level was significantly higher from such in animals of strong types of higher nervous activity. Stress affects (F=1803>FU=2.2; P<0.001) the content of this hormone in pigs’ blood serum more than the type of higher nervous activity (F=45.1>FU=2.27; P<0.001). With increase of strength and balance of cortical processes the cortisol level in blood of animals decreases (r=-0.58–0.76; P<0.01–0.001). Established the significant interaction between typological features of higher nervous activity and technological stimulus (F=38.8>FU=1.76; P<0.001), which indicates a possible change in the strength, balance and mobility of the nervous processes under the influence of the stress factor.

Keywords: Cortisol, higher nervous activity, pigs, stress

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