Practical type swine diets contain levels of potassium in excess of National Research Council recommendations for this nutrient. However, it has been shown that potassium salts of metabolizable organic acids improved gain and efficiency of pigs fed low lysine diets. Previous work at this station indicated that .4 or .8% of supplementary potassium, from potassium chloride, did not affect performance of young pigs fed a diet containing .85% lysine. These pigs did respond to lysine supplementation, indicating that the .85% lysine level was not sufficient for maximum performance. The supplemental potassium appeared to decrease lysine concentration in the blood plasma and additions of lysine decreased (P<.05) plasma potassium.
The objectives of this study were to determine if supplemental potassium, from potassium acetate, would improve performance of pigs fed a diet slightly deficient in lysine and also to compare the performance of pigs receiving potassium from potassium acetate or potassium chloride.
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Agricultural Experiment Station, South Dakota State University
Wahlstrom, R. C. and Libal, G. W., "Supplemental Potassium in Swine Diets Varying in Lysine Content" (1982). South Dakota Swine Field Day Proceedings and Research Reports, 1982. 7.