engleski

The performance of natural zeolite as a feed additive in reducing aerial ammonia and slurry ammonium ion concentration in the pig farm nursery

The research was carried out in the nursery of the pig-breeding farm. Because piglets health, welfare and performance are influenced mostly by concentration of ammonia in the stall air the effect of the feed additive, natural zeolite containing 55% clinoptilolite, was investigated as part of the efforts being made to solve the problems caused by ammonia emissions from pig excrement. During 50 days study, the microclimatic parameters and ammonia concentration as well as physicochemical parameters of slurry were monitored in the experimental and control nursery units. Results of the study proved the ammonia emission reducing effect of the feed additive in experimental unit. The addition of 2 % of zeolite in feed mix led to an ammonia release reduced by about 33 %, and 25% ammonium ion concentration decrease in the slurry.

zeolite; clinoptilolite; ammonia; gaseous pollutant; ammonium ion; slurry

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