Cortical and vegetative regulation of some carbohydrate metabolism indicators in blood of dry sows

Authors

  • R. V. Postoi National University of Life and Environmental Sciences of Ukraine image/svg+xml
  • V. I. Karpovskyi National University of Life and Environmental Sciences of Ukraine image/svg+xml
  • V. V. Postoi National University of Life and Environmental Sciences of Ukraine image/svg+xml

DOI:

https://doi.org/10.31548/dopovidi2020.01.013

Keywords:

tone of autonomic nervous system, indicators of conditioned reflex activity, glucose, lactate dehydrogenase activity, sows, blood

Abstract

The article is devoted to the coverage of the impact of cortical and vegetative regulation mechanisms on homeostasis of carbohydrate metabolism indicators in blood of dry sows. Clinically healthy 3-years-old dry sows of large white breed were used for the studies. Experimental groups of animals were formed depending on certain typological features of nervous activity. The tone of the autonomic nervous system in sows was examined using a trigeminal vagal test. Types of higher nervous activity in pigs were determined using the method of conditioned food reflexes. Serum glucose and lactate dehydrogenase activity were determined. Correlation and analysis of variance were performed to determine the effect of cortical and vegetative mechanisms on carbohydrate metabolism indicators. The results of studies have shown that the tone of the autonomic nervous system is important in glucose homeostasis regulation in dry sows under physiological conditions. This is confirmed by the results of analysis of variance, which showed that sympathicotonia has a probable effect (η2x=0.38; p<0.05) on serum glucose. It was found that sows with high excitability of the sympathetic nervous system were characterized by a tendency to a higher content (by 10.36%; p<0.1) of serum glucose than sows with high excitability of the parasympathetic nervous system. Correlation analysis showed that there is a relationship (r=0.50; p<0.05) between the intensity of excitation and inhibition processes in the cerebral cortex and the activity of lactate dehydrogenase in the sows’ blood serum. Under these conditions, sows of strong balanced mobile type of higher nervous activity showed a tendency to higher lactate dehydrogenase activity (by 20.93%; p<0.1) than sows of weak type.

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Published

2020-02-18

Issue

No. 1(83) (2020)

Section

Veterinary medicine, quality and safety of livestock products

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