Evaluation of an extant model for the excretion of phosphorus and nitrogen from swine fed diets with and without microbial phytase

dc.contributor.authorYitbarek, Alexander
dc.contributor.examiningcommitteeKrause, Denis (Animal Science) Flaten, Don (Soil Science)en
dc.contributor.supervisorKebreab, Ermias (Animal Science) Nyachoti, Martin C. (Animal Science)en
dc.date.accessioned2010-04-07T21:09:04Z
dc.date.available2010-04-07T21:09:04Z
dc.date.issued2010-04-07T21:09:04Z
dc.degree.disciplineAnimal Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractAn extant model was evaluated to assess its adequacy for nutrient management planning for swine operations in Manitoba with regards to phosphorus (P) and nitrogen (N) excretion and the land base for the optimum spreading of manure based on P requirement of crops. Two dietary treatments were used, control diet formulated to meet the requirement of pigs for nutrients as per the recommendations of NRC (No-phytase) and a diet formulated with P level in the No-phytase diet reduced by an average of 0.1 percentage units and amended with microbial phytase at 500 FTU/kg (Phytase). Data was generated from starter to finisher pigs (10 per dietary treatment) and sows (9 per dietary treatment) to evaluate the model. The model was found to be adequate for the prediction of P outputs from starter to finisher but not sows. Model was found to be inadequate for prediction of N output.en
dc.description.noteMay 2010en
dc.format.extent1033416 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1993/3909
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectSwineen
dc.subjectPhytaseen
dc.subjectPhosphorusen
dc.titleEvaluation of an extant model for the excretion of phosphorus and nitrogen from swine fed diets with and without microbial phytaseen
dc.typemaster thesisen_US
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