Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 19 of 19

Full-Text Articles in Life Sciences

Publication List Economics Department: September 1989 - December 1991, Department Of Economics Apr 1992

Publication List Economics Department: September 1989 - December 1991, Department Of Economics

Economics Pamphlet Series

The publications listed herein were prepared during September 1989 - December 1991 by the faculty and graduate students in the Economics Department at South Dakota State University. The publications are arranged by series (Staff Paper, Research Paper, Economics Commentator, Experiment Station Bulletin, etc.).


An Update On Retained Ownership: Case Study Of Calves Born At The Antelope Range Livestock Station, D. M. Marshall Jan 1992

An Update On Retained Ownership: Case Study Of Calves Born At The Antelope Range Livestock Station, D. M. Marshall

South Dakota Beef Report, 1992

An update to a previous report on the case history of retained ownership in the Antelope Range Livestock Station herd is provided. Calves born in 1990 and 1991 were placed in a custom feedlot following weaning and the profitability of postweaning feedlot performance was estimated. Retaining ownership through slaughter, as opposed to selling calves at weaning, resulted in additional estimated profits of $51.27 and $107.82 per head (excluding interest on calf) for the 1990-born and 1991-born calf crops, respectively.


Optimal Efficiency In The Use Of Iowa's Energy, Soil, And Feed Resources For Beef Production, James R. Russell, Allen H. Trenkle, Daryl R. Strohbehn, Walter F. Wedin, Stephen K. Barnhart, Arne Hallam, Mark S. Honeyman Jan 1992

Optimal Efficiency In The Use Of Iowa's Energy, Soil, And Feed Resources For Beef Production, James R. Russell, Allen H. Trenkle, Daryl R. Strohbehn, Walter F. Wedin, Stephen K. Barnhart, Arne Hallam, Mark S. Honeyman

Leopold Center Completed Grant Reports

Soil erodes over six times faster from cultivated Iowa cropland than from pastureland, even though almost 12 percent more of the pastureland acres are classified as highly erodible than the cropland acres. Because of serious concern about excessive erosion of Iowa's topsoil, profitable alternatives to row-crop production are needed for soils like those found in much of southern Iowa.


1992 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University Jan 1992

1992 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University

South Dakota Beef Report, 1992

This is the complete 1992 South Dakota Beef Report.


History And Economic Impact Of Crane-Watching In Central Nebraska, Gary R. Lingle Jan 1992

History And Economic Impact Of Crane-Watching In Central Nebraska, Gary R. Lingle

Proceedings of the North American Crane Workshop

The first documentation of the Platte and North Platte rivers' importance to sandhill cranes (Grus canadensis) dates from the late 1800's. Except for a few ornithologists, it was not until the mid-1970's that crane-watching became popular. During the last 10 years, this interest has become a multi-million dollar tourist industry that attracts people from around the globe who seek to witness this vernal spectacle of half a million cranes. More than half of the former riverine habitat has been abandoned by the cranes, largely because of irrigation and hydropower projects that drain the river and enable forests to ...


Using Futures And Option Contracts To Manage Price And Quantity Risk: A Case Of Corn Farmers In Central Iowa , Li-Fen Lei Jan 1992

Using Futures And Option Contracts To Manage Price And Quantity Risk: A Case Of Corn Farmers In Central Iowa , Li-Fen Lei

Retrospective Theses and Dissertations

The overall objective of this study is to examine the optimal responses of a risk-averse corn producer to price and quantity risks within a framework where both futures and option contracts are available as risk management tools. The corn farmer is selected as a representative decision maker because corn is the most important crop in Iowa;Numerical techniques are used to solve the expected utility maximization problem for the corn producer. In forming his subjective probability distributions about random variables, the farmer is assumed to predicate output which will be sell to cash market at a later date and use ...


A Production And Pricing Decision Model For The Korean Agricultural Cooperatives , Saim Woo Han Jan 1992

A Production And Pricing Decision Model For The Korean Agricultural Cooperatives , Saim Woo Han

Retrospective Theses and Dissertations

The purposes of this study were to introduce the idea that a farm cooperative is a decision unit in Korea, and to develop a short-run model of the cooperative which could be used to analyze its problems;In particular, an attempt was made to develop under certainty a normative-prescriptive model of a diversified multi-product marketing, supply inputs and consumption goods cooperative which served both member and nonmember patrons, and also develop a model of a multi-product marketing and supply cooperative under uncertainty;Development of the model under certainty began with the construction of a sub-model of a typical multi-product member ...


Overreaction In Futures Markets , Robert Frederick Baur Jan 1992

Overreaction In Futures Markets , Robert Frederick Baur

Retrospective Theses and Dissertations

Market efficiency is tested in futures markets by forming portfolios of futures contracts on the basis of previous price changes. Contracts with extreme positive (negative) price change are added to winner (loser) portfolios. Market efficiency requires the expected return on these two portfolios to be statistically equal. Buy-and-hold portfolios from sixty-six futures markets from a sample period of January, 1964 to April, 1992 are formed to test for the existence of risk premiums. This study extends DeBondt and Thaler (1985) by applying a similar strategy to futures markets where selection bias should not be a problem;Contrary to their findings ...


The Effect Of Health Information On The Implicit Prices Of Nutrients, Soma Sen Jan 1992

The Effect Of Health Information On The Implicit Prices Of Nutrients, Soma Sen

Retrospective Theses and Dissertations

No abstract provided.


G92-1071 Ridge Plant Systems: Weed Control, Robert N. Klein, Gail A. Wicks, Alex Martin, Russell S. Moomaw, Fred Roeth, Robert G. Wilson, Paul J. Jasa Jan 1992

G92-1071 Ridge Plant Systems: Weed Control, Robert N. Klein, Gail A. Wicks, Alex Martin, Russell S. Moomaw, Fred Roeth, Robert G. Wilson, Paul J. Jasa

Historical Materials from University of Nebraska-Lincoln Extension

Advantages and disadvantages of the ridge plant system, weed control before and at planting and economics of the system are discussed. Ridge planting combines tillage and herbicides to achieve improved weed control in row crops. Crop seed is planted into ridges formed during cultivation and/or ditching of the previous crop. In ridge planting, the planter follows the old row and ridge clearing sweeps or disks move the surface soil, residue and much of the weed seed out of the row. Weed seeds are deposited between the rows where, upon germination, they can be controlled with cultivation. Two cultivations are ...


G92-1076 Canola Production, Lenis Alton Nelson, Alan Grombacher Jan 1992

G92-1076 Canola Production, Lenis Alton Nelson, Alan Grombacher

Historical Materials from University of Nebraska-Lincoln Extension

Canola, which produces a vegetable oil low in saturated fat, has potential for becoming an alternative crop for Nebraska agriculture. Canola produces an oil that has the lowest saturated fat content of any vegetable oil. Today, there is an increasing demand for this oil by diet-conscious consumers. In 1985, the U.S. Food and Drug Administration (FDA) recognized rapeseed and canola as two different species, based on their content and uses. Rapeseed oil is used in industry, while canola oil is used for human consumption. High erucic acid rapeseed (HEAR) oil contains 22-60 percent erucic acid, while low erucic acid ...


Ec92-107 Nebraska Proso, Sunflower And Amaranth Variety Tests, 1992, David D. Baltensperger, Glen E. Frickel, Mark Swanson, Robert N. Klein, James Krall, Randy Anderson, Daryl Ellis, Drew J. Lyon Jan 1992

Ec92-107 Nebraska Proso, Sunflower And Amaranth Variety Tests, 1992, David D. Baltensperger, Glen E. Frickel, Mark Swanson, Robert N. Klein, James Krall, Randy Anderson, Daryl Ellis, Drew J. Lyon

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of proso, sunflower, and amaranth variety trials conducted in cooperation with the Panhandle Research and Extension Center, Scottsbluff, Nebraska. Conduct of the experiments and publication of results is a joint effort of the UNL Agricultural Research Division and the Cooperative Extension Service.


Selection Of Herbaceous Energy Crops For Sustainable Agriculture, Irvin C. Anderson, Dwayne R. Buxton, Arne J. Hallam Jan 1992

Selection Of Herbaceous Energy Crops For Sustainable Agriculture, Irvin C. Anderson, Dwayne R. Buxton, Arne J. Hallam

Leopold Center Completed Grant Reports

Double cropping, a system in which more than one crop is produced per year in a land area, helps to increase food and feed production in the United States. But the impact of double cropping on production of biomass (crops grown to be converted to fuel) has not been evaluated. Such cropping systems have been successful in the eastern and southern United States. If they can be adapted to the relatively short growing season of the extremely large and agriculturally productive north-central region of the United States, biomass production potential can be greatly increased.


Supply Response And Food Demand In Lampung, Indonesia, Yoke Muelgini Jan 1992

Supply Response And Food Demand In Lampung, Indonesia, Yoke Muelgini

Retrospective Theses and Dissertations

No abstract provided.


Economic Impacts Of Growth Promotants In The Beef, Pork And Poultry Industries , Brian Lee Buhr Jan 1992

Economic Impacts Of Growth Promotants In The Beef, Pork And Poultry Industries , Brian Lee Buhr

Retrospective Theses and Dissertations

Advances in biotechnology have resulted in the potential for use of growth promotants in commercial livestock production. Somatotropins and beta-agonists are the two growth enhancers most likely to be used in beef, pork, and chicken production. The growth promotants increase production efficiency and also result in improved lean composition of meat;Commercial availability of growth promotants will have impacts on all participants in meat production, including producers, processors, consumers, crop producers, and the government, and their possible use has been controversial. The objective of this study is to determine the likely economic impacts of the adoption of growth promotants by ...


Agricultural Trade Liberalization In Morocco: The Case Of Oilseeds Sector, Samia Moulay-Benaissa Jan 1992

Agricultural Trade Liberalization In Morocco: The Case Of Oilseeds Sector, Samia Moulay-Benaissa

Retrospective Theses and Dissertations

No abstract provided.


Effects Of Farm Characteristics And Government Disaster Assistance On Multiple-Peril Crop Insurance Purchases By Iowa Crop Farmers , Khosrow Khojasteh Jan 1992

Effects Of Farm Characteristics And Government Disaster Assistance On Multiple-Peril Crop Insurance Purchases By Iowa Crop Farmers , Khosrow Khojasteh

Retrospective Theses and Dissertations

The present federal crop insurance program has been characterized by low farmer participation and high government costs. It has been frequently argued that one of the major factors causing the poor participation rate is the continued availability of disaster relief payments, whereby the ad hoc disaster assistance programs help support producers' beliefs that a widespread natural disaster will be accompanied by government assistance;The purpose of this study was to develop and empirically estimate probability models that could explain Iowa farmers' behavior regarding the purchase of multiple-peril crop insurance. The models under study included both linear and nonlinear single- equations ...


The Reform Of The Agricultural Policy In The European Economic Community: An Italian Farm Simulation Study, Giovanni Giardini Jan 1992

The Reform Of The Agricultural Policy In The European Economic Community: An Italian Farm Simulation Study, Giovanni Giardini

Retrospective Theses and Dissertations

No abstract provided.


The Economics Of Reducing Sulfonamide Residues In Pork, Virginia Marie Berger Jan 1992

The Economics Of Reducing Sulfonamide Residues In Pork, Virginia Marie Berger

Retrospective Theses and Dissertations

No abstract provided.