title: Prediction of the nutrients value and biochemical characteristics of swine slurry by measurement of EC--electrical conductivity.
abstract: Slurry samples, collected from 41 commercial swine farms in South Korea, were characterized in various physico-biochemical, macro and micronutrients, heavy metals and microbial parameters. Interestingly, significant variations were observed in all the parameters. However, positive relationships were noticed between EC and ammonia nitrogen (NH(3)-N), total nitrogen (TN), total potassium (TK), specific gravity (SG), total solids (TS), volatile solids (VS), fixed solids (FS), total dissolved solids (TDS) at R(2)=0.91, 0.74, 0.69, 0.60, 0.50, 0.48, 0.55, and 0.52, respectively. Whereas phosphorous and other nutrients shown poor correlation. Escherichia coli and Salmonella were counted at an average of 5.04 log(10) colony forming unit (CFU)/mL and 3.55 log(10) most probable number (MPN)/mL, respectively. Equations for predicting nutrients content in swine slurries are presented with EC, because it is an easily determinable parameter. The data obtained in this study could be used as a guideline for Good Management Practices in South Korean swine farms as well as other countries.
authors.affiliation: Department of Agricultural Biotechnology, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, South Korea.
authors.forename: A
authors.initials: A
authors.lastname: Suresh
authors.forename: H L
authors.initials: HL
authors.lastname: Choi
authors.forename: D I
authors.initials: DI
authors.lastname: Oh
authors.forename: O K
authors.initials: OK
authors.lastname: Moon
mesh_terms: D000818:Animals; D004553:Electric Conductivity; D006863:Hydrogen-Ion Concentration; D012722:Sewage / Q000032:analysis* / Q000382:microbiology; D013046:Specific Gravity; D013552:Swine / Q000502:physiology*
chemical_list: D012722:Sewage