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Theses/Dissertations

Utah

1962

Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

The Effect Of Range Condition Upon The Production, Nutritive Intake And Digestibility Of Desert Range Forage In Southwest Utah, J. Kent Taylor May 1962

The Effect Of Range Condition Upon The Production, Nutritive Intake And Digestibility Of Desert Range Forage In Southwest Utah, J. Kent Taylor

All Graduate Theses and Dissertations

The 65 million acres of winter range in the Intermountain region furnish forage for about five million sheep and four million cattle each winter for approximately six months. These arid ranges are well suited for winter grazing, and are of paramount importance to the livestock industry. Many of these ranges were fully stocked by 1900 and as livestock continued to increase, many winter ranges were seriously over-grazed (Hutchings and Stewart, 1953). Today many of these ranges remain in a deteriorated condition. Forage production has decreased and desirable plants have been replaced by less desirable species.

Little is known about the ...


Income Adjustments Form Fee And Permit Changes On Utah Cattle Ranches Using Public Ranges Yearlong, C. Kerry Gee May 1962

Income Adjustments Form Fee And Permit Changes On Utah Cattle Ranches Using Public Ranges Yearlong, C. Kerry Gee

All Graduate Theses and Dissertations

Within the boundaries of Utah are approximately 52.7 million acres of land. About 41 million acres are rangeland, of which 73 percent is federally owned and 5 percent state owned (6).1 The portion owned by the Federal government is administered by the Bureau of Land Management (BLM) and the Forest Service. Most of this land is either arid or mountainous and has been used mainly for grazing in the past. IT has other uses, however, such as mining, forestry, recreation, and watersheds. Due to recent increases in population, personal income, shorter work weeks, and improved transportation facilities, these ...


Cuterebra (Diptera: Cuterebridae) Of Utah And The Neighboring States, Charles L. Graham May 1962

Cuterebra (Diptera: Cuterebridae) Of Utah And The Neighboring States, Charles L. Graham

All Graduate Theses and Dissertations

Cuterebra are robust flies, which in flight resemble large black bees. Little is known about the bionomics of most of the species included in this genus. Nearly all members of this group parasitize rodents and lagomorphs. Some species have a wide host range, others seem to be specific or semi-specific to a single host. Accidental parasitism of animals other than specific host animals does occur. In such cases the larvae or the host usually die before the larvae can mature. There is a wide variation in the effect of of the parasite on its host. If the parasite is found ...


The Cost Of Owning And Operating Farm Power And Machinery Used In Tillage Operations On Diversified Farms In Selected Areas Of Utah, 1960, Clynn Phillips May 1962

The Cost Of Owning And Operating Farm Power And Machinery Used In Tillage Operations On Diversified Farms In Selected Areas Of Utah, 1960, Clynn Phillips

All Graduate Theses and Dissertations

A current problem facing fanners is, how much shouls they mechanize their farm perations? Ae the relative price and productivity of factors change farmers usually have to adjust their operations to assure maximum profits. Technological advances often change the relative productiveness and the price of machinery. These changes have caused the progressive farmer to continually review his farm organization and make adjustments in levels of factor use. If he is to produce at maximum profits it is necessary that his machinery investment be in proper adjustment with other resources.