Abstract: 1600 one-day-old cherry volley ducks were randomly allocated to 8 groups and fed with different proportions and combinations of antibiotic, zeolite, Chinese herbal medicine, effective microorganisms (EM), and amino acid-trace mineral chelates, aimed to approach the effects of different additives on the duck growth performance and duck house mephitis concentration. After fed with zeolite, EM, or Chinese herbal medicine, the daily gain and feed efficiency of the ducks increased ( P <0.05) significantly. In the first 14 days, treatment zeolite + EM had the best effects on the increase of duck live weight, feed intake, and daily gain, and treatments antibiotic and antibiotic + zeolite increased the feed efficiency significantly ( P <0.05). In the late 21 days, zeolite, EM, and Chinese herbal medicine increased the feed efficiency, and zeolite + Chinese herbal medicine as well as amino acidtrace mineral chelates increased the feed intake, daily gain, and mass quality significantly ( P <0.05). Zeolite, EM, and Chinese herbal medicine decreased theNH_3,H₂S and CO₂ concentrations in the duck house, and zeolite, amino acid-trace mineral chelates, and zeolite + Chinese herbal medicine had the best effects in reducing thetheNH_3,H₂S and CO₂ concentrations, respectively. It was suggested that zeolite, Chinese herbal medicine, and EM could be the effective feed additives in improving the growth performance of cherry volley ducks and the available deodorizers in reducing the mephitis concentration in duck house.

Key words: Changbai Mountains, Korean pine and broadleaved mixed forest, Forest insect, Diversity