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http://dx.doi.org/10.5322/JESI.2022.31.1.99

Effect of Manure Additives Mixed with Probiotics and Zeolite on Harmful Gas Production Released From Pig Slurry  

Jang, Woo-Whan (Department of Agricultural Economics, Kyungpook National University)
Choi, In-Hag (Department of Companion Animal & Animal Resources Science, Joongbu University)
Publication Information
Journal of Environmental Science International / v.31, no.1, 2022 , pp. 99-102 More about this Journal
Abstract
The aim of this study was to investigate the effect of manure additives mixed with probiotics and zeolite on harmful gas production generated by pig slurry. A total of 180 crossbred pigs ([Yorkshire × Land race] × Duroc, live weight 70±3.21 kg) were allotted to a completely randomized design with 3 treatments and 3 replications (20 heads per replicate). The treatments consisted of 0% (control), 0.05% (T1), or 1% (T2) of manure additives mixed with probiotics and zeolite. Manure additives were added weekly to pig slurry pits (2 m × 4.5 m × 1.2 m) on a volumetric basis. For ammonia measured at both 10 cm and 90 cm above the pig slurry pit, a statistical significance (p<0.05) was found in probiotics and zeolite-treated manure additives at weeks 1 - 3, except for week 0. In addition, hydrogen sulfide levels measured at 10 cm above the pig slurry pit were not affected by the manure additive at weeks 0 and 1, but showed a significant statistical difference at weeks 2 and 3 (p<0.05). Therefore, supplementing pig slurry with 0.05% and 0.1% manure additives mixed with probiotics and zeolite was found to be effective in reducing environmental pollution in pig facilities.
Keywords
Ammonia; Hydrogen sulfide; Manure additives; Pig slurry; Probiotics; Zeolite;
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