A computerized analysis of silo investments

dc.contributor.authorCrowgey, John Howarden
dc.contributor.departmentDairy Science (Management)en
dc.date.accessioned2019-01-31T17:50:25Zen
dc.date.available2019-01-31T17:50:25Zen
dc.date.issued1982en
dc.description.abstractA computer program named Silo Investment Analysis (SILAN) was developed to assist dairymen with selection of silage structures. SILAN consists of a core program which can be supplemented with options to include borrowed money, income tax benefits, inflation, companion equipment, and an evaluation of dimensions. It computes present value of cost, annual cost, and costs per ton of silage. It also provides a cash-flow, and ranks silo alternatives on annual cost, cost per ton, and storage capacity. Trial runs were designed for analysis by the program. With no borrowed money and a 9% minimum attractive rate of return, costs per ton of dry matter recovered ranged from $5.39 to $14.09 for horizontal, $9.60 to $24.92 for conventional upright, and $29.42 to $66.75 for oxygen-limiting silos. Annual costs ranged from $2045 to $4572, $1708 to $4673, and $4901 to $14805 for horizontal, conventional upright, and oxygen-limiting silos. However, horizontal silos were larger than the upright silos. Predictive equations were developed for annual cost and cost per ton of dry matter recovered for each type of silo. Variables included price, minimum attractive rate of return, marginal tax bracket, and their products. Models were selected which contained the fewest terms and possessed R-square values greater than .95. Annual cost models for all silo types were or the same form, varying only by the size of regression coefficients. Formulas for cost per ton were more complex and varied by type of silo.en
dc.description.degreeMaster of Scienceen
dc.format.extentvi, 133, [2] leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/87111en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 9384061en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1982.C772en
dc.subject.lcshSilosen
dc.titleA computerized analysis of silo investmentsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineDairy Science (Management)en
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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