Relationship between the main characteristics of nervous processes with the sodium content in blood of cows depending on the season

The type of higher nervous activity determines individual differences and the body's ability to adapt to changing environmental conditions. The most perfect adaptation is provided by a combination of high strength, mobility and balance of nervous processes. It was found that the strength of nervous processes both in summer and in winter was inversely related only to the sodium content in blood cells (r = -0.57–0.71; p<0.01). The balance of excitation and inhibition processes in the cerebral cortex in summer was inversely correlated with the sodium content in whole blood (r = -0.56; p<0.05) and blood cells (r = -0.64; p <0.01), in winter – in blood serum of cows (r = 0.62; p <0.01). It is proved that in summer the effect of the balance on the sodium content in whole blood was ղ²х = 0.29 (p <0.05), in blood cells – ղ²х = 0.63 (p<0.001), and in winter in blood cells – ղ²х = 0.37 (p<0.05). In summer, the mobility of nervous processes to a greater extent limited the sodium content in blood of cows than in winter. Thus, the effect of this indicator of cortical regulation on the sodium content in whole blood and blood cells in summer reached ղ²х = 0.25–0.35 (p<0.05), and in winter in blood cells – ղ²х = 0.24 (p<0.05).