Characteristics of Manure and Estimation of Nutrient and Pollutant of Holstein Dairy Cattle
2007
Choi, D.Y. (National Livestock Research Institute, RDA, Suwon, Republic of Korea), E-mail: [email protected] | Choi, H.L. (Seoul National University, Seoul, Republic of Korea) | Kwag, J.H. (National Livestock Research Institute, RDA, Suwon, Republic of Korea) | Kim, J.H. (National Livestock Research Institute, RDA, Suwon, Republic of Korea) | Choi, H.C. (National Livestock Research Institute, RDA, Suwon, Republic of Korea) | Kwon, D.J. (National Livestock Research Institute, RDA, Suwon, Republic of Korea) | Kang, H.S. (National Livestock Research Institute, RDA, Suwon, Republic of Korea) | Yang, C.B. (National Livestock Research Institute, RDA, Suwon, Republic of Korea) | Ahn, H.K. (Iowa State University, Ames, IA, USA)
This study was conducted to determine fertilizer nutrient and pollutant production of Holstein dairy cattle by estimating manure characteristics. The moisture content of feces was 83.9% and 95.1% for urine. The pH of feces and urine were in the ranges of 7.0~7.4 and 7.5~7.8, respectively. The average BOD∧5, COD, SS, T-N, T-P concentrations of the dairy feces were 18,294, 52,765, 102,889, 2,575, and 457 mg/ℓ, respectively. Dairy urine showed lower levels of BOD∧5(5,455 mg/ℓ), COD(8,089 mg/ℓ), SS(593 mg/ℓ), T-N(3,401 mg/ℓ), and T-P(13 mg/ℓ) than feces.
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