[Spectrum of nonesterified fatty acids in blood and muscle tissue of swine. 2. Effect of maintenance and electroshock treatments].

The effects of various keeping patterns and electroshock treatments on the overall concentration and percetual composition of unesterified fatty acids in blood and muscular tissue were tested in improved land race pigs, aged 198 days. No differences were established between the groups by keeping. Electroshock treatment (150 V, 0.3 A, 90 Hz) over 60 seconds caused decline in total concentration of unesterified fatty acids in muscular tissue. Total concentration in the blood, however, was not affected by electroshock treatment. The response of trained animals to electroshock was percentual increase of oleic and palmitic acids in blood and muscle, while the percentages of the same fatty acids dropped in untrained animals.