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Influence Of Some Environmental Factors On Black Hills Beetle Population Trends, Mark D. Mcgregor

Biology

The Black Hills beetle, Dendroctonus ponderosae Hopk. is the most destructive insect of ponderosa pine, Pinus ponderosa Laws., on the Dixie National Forest and in Bryce Canyon National Park in southern Utah. This beetle also attacks limber, whitebark, pinyon, lodgepole, bristlecone and Mexican white pines, and occasionally Englemann and blue spruces throughout its range in South Dakota, Wyoming, Colorado, Utah, northern Arizona and New Mexico. It seldom produces broods in spruces, because the parent and young brood are usually "pitched-out." This insect has been known to recur periodically in stands of overmature ponderosa pine.

The Site Of The Immune Reaction Against Eimeria Bovis In Calves And The Demonstration Of Antibodies By Immunofluorescence, Ferron L. Andersen

Biology

In 1959 Senger et al. reported that calves which had received a small oral inoculation of Eimeria bovis oocysts were later resistant to larger challenge inoculations. In an investigation on the mechanism of this immune reaction, Hammond et al. (1959) compared the number and size of E. bovis schizonts in immunized and nonimmunized calves, but found no significant difference in the results. They conducted 3 experiments using 28 young male Holstein-Friesian calves, and killed the majority of these calves for examination 17 to 20 days after the challenge inoculation.

In Vivo And In Vitro Excystation And Description Of The Sporulated Oocysts Of Some Bovine Coccidia, Peter A. Nyberg

Biology

Excystation, as applied to the coccidia, is the mechanism by which sporozoites are released from sporocysts and oocysts. This process has been investigated both in vivo and in vitro, in poultry, rabbits, and sheep. Some work has been done with bovine coccidia, but excystation in vitro has not been reported.

The Effect Of Monosodium Glutamate As A Possible Mutagen On The Compound Eye Of Drosophila Melanogaster, N. Roger Hawkes

Biology

Phenotypes of Drosophila can be altered by subjecting developing larvae to changes in environment. Such environmental changes may be temperature shocks, ionizing and non-ionizing radiation and chemically altered media. Most alterations in phenotype are not inherited, and may resemble the effects produced by known mutant genes. Such alterations are called phenocopies.

A Morphological And Cultural Study Of Trichomonads And Other Flagellates Of The Bovine Digestive Tract, Emron A. Jensen

Biology

The trichomonads of the bovine digestive tract are incompletely known and the taxonomy of the described species is not clear. Two species, Trichomonas enteris (Christl) and T. bovis (Pavlov and Dimitrov) from the lower digestive tract of cattle have been described, although the descriptions in both cases were not complete. A species of flagellates of the rumen has been known since 1913; it has been called a trichomonad by some authors and a monocercomonad by others.

Experimental Study Of Tissue Eosinophil Transformation, Ferrell R. Campbell

Biology

An increase in the number of eosinophilic leukocytes has long been recognized as an integral part of the cellular response of the body to parenterally introduced foreign proteins. Although the function of eosinophils is poorly understood, high eosinophil counts have been associated with the antigen-antibody reactions resulting either directly or indirectly from hypersensitivity.

Bioassay Studies With Ddt On Utah Populations Of Codling Moth, Morteza Esmaili

Biology

The codling moth is known as one of the important persts of apple, pear, quince, walnut and several other fruits. It occurs wherever these fruits are grown and it is a serious limiting factor in all apple growing areas. The injury is caused by the larva which tunnels into the fruit, lowering its commercial value and making the fruit susceptible to infections from fungi and bacteria.

The Demonstration Of Humoral Antibodies Against Eimeria Bovis In Cattle, Lyle Lowder

Biology

Cattle are rarely free of coccidia (Marsh, 1938). It is estimated that this disease is responsible for an annual loss of 10 million dollars in the cattle industry; which is second only to the loss caused by liver flukes among internal parasites. The mortality was conservatively estimated to be as high as 29.1 percent in several outbreaks of bovine coccidiosis (Agriculture Research Service, 1954).

Changes In Serum Proteins And Other Blood Values Associated With Ostertagia Ostertagi Infection In Calves, Jerome L. Mahrt

Biology

Parasitism causes large economic losses to the livestock industry. Included in this economic loss are death to the host animal, but even more important are the losses due to illness, reduced growth rate, decreased meat, milk, egg, and wool production and, in working animals, loss of working energy (Levine, 1961). Even rough estimates of this economic loss are difficult to make. The United States Department of Agriculture (1954) published a 10 year report (1942-1951) on the annual losses due to parasitism in the United States. According to this report parasitism caused an estimated loss to livestock and poultry of $79,532,000 …

Influence Of Some Environmental Factors On Black Hills Beetle Population Trends, Mark D. Mcgregor

Biology

The Black Hills beetle, Dendroctonus ponderosae Hopk. is the most destructive insect of ponderosa pine, Pinus ponderosa Laws., on the Dixie National Forest and in Bryce Canyon National Park in southern Utah. This beetle also attacks limber, whitebark, pinyon, lodgepole, bristlecone and Mexican white pines, and occasionally Englemann and blue spruces throughout its range in South Dakota, Wyoming, Colorado, Utah, northern Arizona and New Mexico. It seldom produces broods in spruces, because the parent and young brood are usually "pitched-out." This insect has been known to recur periodically in stands of overmature ponderosa pine.

The Demonstration Of Humoral Antibodies Against Eimeria Bovis In Cattle, Lyle Lowder

Biology

Cattle are rarely free of coccidia (Marsh, 1938). It is estimated that this disease is responsible for an annual loss of 10 million dollars in the cattle industry; which is second only to the loss caused by liver flukes among internal parasites. The mortality was conservatively estimated to be as high as 29.1 percent in several outbreaks of bovine coccidiosis (Agriculture Research Service, 1954).

The Site Of The Immune Reaction Against Eimeria Bovis In Calves And The Demonstration Of Antibodies By Immunofluorescence, Ferron L. Andersen

Biology

In 1959 Senger et al. reported that calves which had received a small oral inoculation of Eimeria bovis oocysts were later resistant to larger challenge inoculations. In an investigation on the mechanism of this immune reaction, Hammond et al. (1959) compared the number and size of E. bovis schizonts in immunized and nonimmunized calves, but found no significant difference in the results. They conducted 3 experiments using 28 young male Holstein-Friesian calves, and killed the majority of these calves for examination 17 to 20 days after the challenge inoculation.

Influence Of Some Environmental Factors On Black Hills Beetle Population Trends, Mark D. Mcgregor

Biology

The Black Hills beetle, Dendroctonus ponderosae Hopk. is the most destructive insect of ponderosa pine, Pinus ponderosa Laws., on the Dixie National Forest and in Bryce Canyon National Park in southern Utah. This beetle also attacks limber, whitebark, pinyon, lodgepole, bristlecone and Mexican white pines, and occasionally Englemann and blue spruces throughout its range in South Dakota, Wyoming, Colorado, Utah, northern Arizona and New Mexico. It seldom produces broods in spruces, because the parent and young brood are usually "pitched-out." This insect has been known to recur periodically in stands of overmature ponderosa pine.

The Demonstration Of Humoral Antibodies Against Eimeria Bovis In Cattle, Lyle Lowder

Biology

Cattle are rarely free of coccidia (Marsh, 1938). It is estimated that this disease is responsible for an annual loss of 10 million dollars in the cattle industry; which is second only to the loss caused by liver flukes among internal parasites. The mortality was conservatively estimated to be as high as 29.1 percent in several outbreaks of bovine coccidiosis (Agriculture Research Service, 1954).

Factors Influencing Elk Distribution On Willow Creek Summer Range, Utah, Duane Eldro Jeffery

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study is aimed at gaining a better understanding of the factors responsible for the distribution of elk on summer range, and an analysis of characteristics of preferred habitat. Such knowledge should prove of value in elk management, both in better managing elk herds themselves, and in coordinating their needs with those of other land uses.

Factors Influencing The Quality And Palatability Of Venison In Utah, Flora H. Bardwell

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Outdoor recreational activities dealing with the pursuit of game is exceedingly popular today and its popularity is increasing each year. Annually over 180,000 hunters go afield in Utah in search of deer. There is harvested in the state over 12,000,000 pounds of dressed venison from Utah deer herds each fall. These hunters contribute 10.5 million dollars to the economy of the state for licenses, lodging, transportation and other expense of hunting.

Deer hunting is often done by the amateur, who with little or no experience has few or improper tools or information for dressing and caring for his game, and …

Early Female Maturation As A Factor Related To Early Marriage, Arnold Gene Taylor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

While the number of youthful marriages in the United States is increasing, evidence continues to indicate that a significant proportion of these marriages is unstable. The marital failure rate and the extensive problems associated with early marriage have caused widespread concern and have stimulated research and theory formulation in this area.

The Influence Of Salinity On The Growth And Reproduction Of Marsh Plants, D. K. Kaushik

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The water resources of the State of Utah are rapidly being developed for agriculture and industry. They are so extensively exploited that their continued and additional use must be justified on the basis of need and efficiency of utilization. To determine more accurately the quantity and quality of water needed to operate a marsh, a project was undertaken by the Utah Department of Fish and Game, the Engineering Experiment Station and the Cooperative Wildlife Research Unit at Utah State University. The study was divided into the two phases, one on quantity and one on quality of water. The present report …

Farmers' Reactions Toward Upland Bird Hunting In Two Utah Counties, 1957, Frank J. Calkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Proof that public hunting on private lands is a growing Utah problem is, perhaps, most easily found by driving down any country lane. “No Trespassing" signs come one to a fence post or so it must seem to the pheasant hunter. His quarry is the most popular of Utah's farm game species and, unfortunately, the most popular subject of farmer-sportsmen disputes.

Reasoning that short seasons reduce hunter nuisances and property damage, landowners have long advocated three- to five-day pheasant seasons. And because of this and a former game department concern about overshooting the birds (Utah Fish and Game Commission, 1946) …

An Ecological Study Of The Bear Lake Littoral Zone, Utah-Idaho, Gar W. Workman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past, several projects have been conducted at Bear Lake, Utah-Idaho, by the Utah State University through the Wildlife Resources Department, in conjunction with the Utah and Idaho fish and game departments, the Fish and Wildlife Service , and the National Science Foundation. These projects have dealt primarily with limnology, limnological techniques, fish life histories, fish movements, and bottom fauna in the pelagic and benthic areas of the lake. Subsequently, a littoral zone project was set up to study some of the ecological aspects of the shallow waters of Bear Lake, and some of the influences that this area …

The Effectiveness Of Leaching And Soil Amendments In Improving A Salt-Affected Soil Of The Hooper Area Of Utah, Edwin Baugh Haycock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the relatively low lying delta area west of Ogden, Utah several thousand acres of potentially productive lands have been seriously affected by the accumulation of soluble salts and the associated condition of excessive exchangeable sodium. As a part of the Weber Basin Project, much of this large area of undeveloped or only partially developed land is proposed for irrigation. Successful irrigation of these salt-affected lands, however, is dependent upon their reclamation and improvement.

Ecological Factors Influencing Plant Distribution In The Shadscale Zone Of Southeastern Utah, Kamal M. Ibrahim

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The intimate relationship between vegetation and soil has long been a subject of interest. Ecologists, soil surveyors, and ranchers have recognized that vegetation differences are often accompanied by variation in soil types.

Milk Bases In Utah And Their Effect On Total Supply Of Market Milk, Harold O. Ward

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Some of the most striking changes in the production and marketing of dairy products have occurred since World War II. Dairy farming, for instance, has become more specialized and more commercial. Modern techniques of refrigeration, bulk handling, and transportation have made it possible for market milk to be shipped many miles without appreciable loss of quality.

Some Agronomic Aspects Of Seed Chalcid Bruchophagus Roddi Gussakovsii Resistance In Alfalfas, James H. Thomas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Previous studies have indicated that certain alfalfa varieties and clones are more resistant than others to alfalfa seed chalcid damage. This resistance varies in all cases and data on infestations indicate that agronomic characteristics may be responsible for some of the apparent resistance. Since this is a major pest in alfalfa seed producing areas, and cultural and chemical controls have been essentially ineffective, it was decided to determine if resistance was associated with certain pod characteristics in order to find a partial solution to the problem.

Utah State University Stilling Basin Pipe Flow To Open Channels, Hameed Rasheed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Energy dissipation problems are often encountered where pipelines discharge into open channels. Normal pipe flow velocities most often result in super-critical velocities in canals. These high velocities may cause scour, overtopping, and unstable flow in the channel.

The principal objective of the study was to find an efficient and economical design of a stilling basin transition from pipe flow to open channels. Pertinent variables were selected and their effects determined by extensive experimentation.

An efficient stilling basin was developed utilizing a short dissipator pipe on the wall opposite the inflow pipe. The optimum diameter, length, and differential elevation between center …

The Need For And Ability To Support A Program Of Cooperative Vocational Business Education In The Salt Lake City High Schools, Calvin Dean Lowe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The United States Office of Employment Security, early in 1962, reported that there were nearly five million available workers unemployed in the United States (3). An economic recession causing industry to cut back on production, more efficient methods in the manufacturing process, and the rapid changes in labor brought about by automation were listed as a few of the causes contributing to this condition. Another cause as depicted by an industry-produced film, "The Awesome Servant," showed that a large number of Americans that have had their jobs taken over by a machine have not been re-hired because they lack an …

The Effect Of Range Condition And Intensity Of Grazing Upon The Daily Intake And Nutritive Value Of The Diet Of Sheep On Summer Ranges Of Northern Utah, Merwyn Mortimer Kothmann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mountainous ranges of the West are commonly used during the summer and have been used in this manner since the settlement of white men over a century ago. Many of these ranges have been mis-managed and are in poor condition. The productivity of these ranges greatly affects the economy of the nation; thus, if ranges in poor condition have a nutritive value lower than ranges in good condition, it results in an economic loss. little work has been done to determine the nutritive value of mountainous summer ranges in good condition compared to similar ranges in poor condition.

A Business History Of The Copper Industry Of Utah, 1860-1910, Gary Barker Hansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Historically, those communities or nations which are generously endowed with natural resources, and have the necessary skills to practice the liberal and useful art have become the most advanced civilizations. Furthermore, "of all the resources which are basic to civilization, the possession and utilization of minerals must be placed first."

It would be difficult to estimate the over-all importance of the nonferrous metals industry (gold, silver, copper, lead, zinc) in helping America to become a great civilization. However. if it were possible, it would be considerable indeed. As Utah has been an important nonferrous mineral producing state for over 100 …

Graduate Recital, Gareth L. Larsen

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

It has long been the intention of the writer that many of the problems that arise in the performance of instrumental groups are created by the director's insufficient knowledge of fundamental problems encountered in the playing of the instruments utilized in his organization.

Graduate Recital, Darrell R. Lund

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

A major responsibility of the high school band director is to guide young students in solo and ensemble studies. Successful experiences of this type help develop the student's individual playing and listening abilities which contributes to a more effective band program. It was the purpose of this recital to afford the writer and opportunity to gain added insight in the area of solo and ensemble preparation and performance which might be useful in developing more effective teaching methods.

In preparing this recital the writer was concerned with the selection of solos suitable to the needs and competencies of the performer, …