| dc.description.abstract | The increasing livestock population has negative impact to the environment. The accumulation of livestock’s manure pollutes the land, water, and also air from the NH3 gas release. Efforts to treat and decrease the odor problem had been done. One treatment which is cheap and efficient is adding lime directly to the manure. The objective of this study was to analyze the effect of lime addition with different concentrations to chicken layer’s manure toward NH3 gas released, pH, water content, and protein content. Layer’s manure was divided into four different concentrations. The first concentration was 0% (manure without addition of lime); the other three were 3, 4, and 5%. A hundred grams of manure from each concentration were analyzed for the NH3 and water content as well as pH, at baseline and every two days for 14 days. Protein content, in the other hand, was measured only at baseline and 14th day’s of incubation at room temperature. The result of the study showed that addition of 5% lime after 14 days of incubation had the lowest NH3, water, and protein contents (0.0025 ppm, 9.7133%, and 25.5%, respectively). The highest pH (9.95) was obtained with 5% lime addition but at the 8th days of incubation. | en |
