Life Sciences Commons^™

Livestock As Seed Disseminators For Reseeding Degraded Rangelands: The Role Of Dung In Gap Formation And Plant Establishment, Brian S. Auman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Livestock (cattle and sheep) were examined as seed disseminators for reseeding degraded Intermountain rangelands. "Hycrest" crested wheatgrass [Agropyron desertorum (Fisch. ex Link) Schult. X A. cristatum (L.) Gaert.] seed was fed to yearling Holstein steers and Suffolk ewes. Dung was collected from each animal type and deposited on plots of high and low densities of an annual [cheatgrass (Bromus tectorum L.)] and perennial [squirreltail (Sitanion hystrix Nutt.)] grass species. The experiment evaluated the ability of the dung to suppress the resident vegetation, and the recruitment and establishment of Hycrest seedlings emerging from the dung.

Sheep dung had …

An Interregional Study Of Kenya's Livestock Sector Using Linear Programming, Zakayo Joseph Mwangi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The major purpose of this study was to determine the least-cost method of producing red meat in Kenya. Linear programming was used in the study. A simulated reduction of grazing land available in one of the settlement areas was carried out to indicate what effect this had on the overall regional production pattern of meat in the country.

Kenya was divided into eleven livestock producing and consuming regions. 1979 was used as the base year, and the demand projection was based on the 1979 population. Input and output coefficients, livestock unit requirements, and market prices were developed. A linear programming …

Economic Impacts Of Public Grazing Reductions In The Livestock Industry With Emphasis On Utah, Deevon Bailey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper was to determine the immediate impact of reductions in public grazing on livestock production in the United States. This was accomplished by the use of linear programming techniques. Different grazing reduction simulations were utilized to determine the short and long run effects of across-the-board reductions in public grazing.

The United States was divided into 13 regions. The 11 western states were considered as individual regions. Special emphasis was placed on the effects of grazing reduction on Utah. The availability and utilization of feed and livestock products during a "normal year", 1978, were considered in this …

Interregional Competition In Markets Facing Utah Livestock And Poultry Producers, Terrell O. Sorensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis is to make an evaluation of the competitive position of the Utah livestock industry based on feed ingredient and transportation costs, This is done by the use of a linear programming model (MPS-360). This is on the basis of the least cost means of production to meet the quantity demanded of the livestock products. This is accomplished by dividing the United States into six regions where Utah is one of these regions to enable careful consideration of Utah's agricultural enterprises.

Beef, pork, broilers, turkeys, eggs, and milk are the agricultural products used in the model. …

Determining Market Areas For Livestock Grazing, Robert G. Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Differentials between rancher costs of operating on private and public range were studied in an attempt to define market areas for livestock grazing in western United States.

The problem of defining market areas is basically a problem of grouping differentials between rancher costs of grazing on private leased range and National Forests that are reasonably homogeneous and statistically testing differences among means of the different groups.

Several methods were used to group forests with reasonably uniform differentials into market areas for cattle. A grouping of forests which have the same average grazing fee does not, however, yield market areas which …

The Economic Value Of Forage For Livestock On Public And Private Ranges In Utah, Mardell D. Topham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The United States Government controls about 359 million acres of land in the 11 Western States. This vast acreage produces recreation for vacationers, timber for lumbermen, water for city and rural consumption, forage for livestock and wildlife, and minerals for miners. In many cases, the users of these products are competing and are clamoring for a large share of this land. Consequently, land use is continually changing. Since 1941, the amount of timber cut has tripled, recreation has doubled, watersheds now yield a better quality of water (Clawson, 1957), forage for wildlife has increased but forage for livestock use has …