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| Blake, Robert W.; Shumway, C. Richard; Tomaszewski, Michael A.; Rickard, Greg P.; Labore, John M.. |
| The Net Present Value Sire Summary Professional Package (NPVSS) is a microcomputer program designed for technical personnel to help dairy producers better manage investments in genetic improvement. NPVSS is written in C language, utilizes the MS-DOS operating system, and requires 256K of RAM. It is menu driven and includes parameter screens to define herd management characteristics of individual producers. Profit rankings of bulls can be generated to evaluate alternative: a) objective functions (selection policies for genetic merit in milk income and type scores), b) herd management performance factors (conception rate, calving interval, age at first calving), and c) economic factors (milk price, semen price, discount rate, planning horizon). |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1988 |
URL: http://purl.umn.edu/29708 |
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| Howard, Wayne H.; Knight, Thomas O.; Shumway, C. Richard; Blake, Robert W.; Tomaszewski, Michael A.. |
| The dissemination of information by extension agents on dairy management practices used to control mastitis and the reception and use of that information by producers are investigated. Producers are surveyed to determine current practices used. The relationship between milk yield, somatic cell count, management practices, and producer and production characteristics is estimated. Subjective probabilities are elicited from "expert," extension agents, and producers concerning the impact and cost of various management practices. Subjective marginal value products and marginal input costs are computed and compared for the respondent groups. Stochastic dominance is used to rank the relative importance of the practices as perceived by the respondents. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1987 |
URL: http://purl.umn.edu/30216 |
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