Digital Commons Network^™

The Effects Of Certain Environmental And Biological Factors On Rally Calling In The Chukar Partridge, H. Warrington Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Naturalists for many years have known that birds sing most at dawn and at dusk, but to which of many physical variables they are responding has not been completely determined. This problem has taken on importance in the field of wildlife management because calling rate has been used as an index of abundance for numerous game birds, namely the Pheasant, Phasianus colchicus (Kimball, 1949); the Mourning Dove, Zenaidura macroura (McClure, 1939); the Bobwhite Quail, Colinus virginianus (Bennitt, 1951; Rosene, 1957): and the Woodcock, Philohela minor (Pitelka, 1943).

Use Of Gamma Radiation, Chemicals, And Packaging Films To Control Post Harvest Diseases And To Extend Refrigerated Life Of Strawberries And Cherries, Gerald M. Cooper

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In recent years there has been a considerable amount of work done on developing chemicals that would inhibit mold growth when applied to fresh fruit, and at the same time, be acceptable to man when taken orally. This would save many thousands of tons of fresh produce that are lost each year by spoilage before it ever reaches the consumer. Along with the development of new chemicals to inhibit mold growth there is a substantial amount of research being done on developing a packaging film that will prevent recontamination of the produce, at the same time allowing the passage of …

History Of The Church College Of Hawaii 1955-1960, Ralph Dallas Olson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

From the Mormon point of view, ignorance is a sin. Mormons believe that their very salvation is dependent upon the development of their mental and spiritual powers, as evidenced from the two following, typical statements from Mormon sacred literature: "The glory of God is intelligence;" "It is impossible for man to be saved in ignorance."

The Life Cycle And Pathogenicity Of Eimeria Auburnensis, Wayne Norris Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Coccidiosis in cattle is caused by microscopic one-celled sporozoa belonging to the order Coccidia and the genus Eimeria. Coccidiosis is a common disease of young calves that weakens or kills them, but the disease also occurs in older animals. Eleven species have been reported in cattle of the U.S.A.(Davis and Bowman, 1956). Of this number only two species, Eimeria bovis(Hammond et al., 1946) and Eimeria zurnii(Davis and Bowman, 1957) have been proven pathogenic for cattle, but except for Eimeria alabamensis(Davis et al., 1955) no experimental work has been done on other species.

Essential Amino Acid Composition Of A Balanced Chick Diet, Donald Christensen Dobson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The scientific balancing of diets has resulted in a series of studies to determine a standard for amino acid adequacy of a chick ration. These studies have shown that some amino acids are required in a chick diet more than others; they are termed "essential amino acids". Proteins used in formulating rations vary widely in essential amino acid content. Because of this variation, it can no longer be said that a diet with so much protein (N x 6.25) is adequate to meet the chick's need for optimum performance. Many papers have been published showing the results of experiments for …

A Curriculum Evaluation By Selected Graduates Of The Richfield High School, Robert D. Rowley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was undertaken to assist the principal and faculty of the Richfield High School in their more or less continuous evaluation of the effectiveness of the school. The writer graduated from this school in 1943 and is at present living in the community after having graduated from Utah State University and teaching one year in the junior high school of a neighboring district.

Studies On Acceptability And Refrigerated-Life Of Certain Gamma-Irradiated Fresh Strawberries And Cherries, Norma Ward Pierson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

From the beginning of time, the history of man has been his struggle to obtain food. After many thousands of years, this is still a major problem which confronts the peoples of the earth. Although much food is available on earth, a great deal never benefits mankind because of deterioration and spoilage. Various kinds of spoilage cause a million tons of grain to be wasted each year. Man has learned to control and overcome some of these destructive forced through a variety of methods of food preservation. Some forms of preservation such as drying, salting, and so forth, probably have …

Moisture And Temperature Effects On The Transformations Of Nitrogen From Applied Ammonium Sulfate In A Calcareous Soil, John Keith Justice

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen has commonly been a deficient element in the cultivated soils of the world since the beginning of agriculture. The general acceptance of the practice of using manures as a means of increasing plant growth, as shown by the records of ancient civilizations, attest to this fact. Since the time of von Liebig there has been an increasing awareness of the importance of this deficiency in soils. As a result of a better understanding of the problem and the increasing availability of commercial forms of nitrogen, a rapid increase in the use of nitrogen fertilizers has taken place in the …

The Effect Of Temperature And Moisture On Nitrification Of Applied Ammoniacal Fertilizer In A Noncalcareous Soil, Merwin Allen Stevens

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The importance of nitrogen in world agriculture has been known for many years. But in the past few decades the enormity of the problem of nitrogen economy has been recognized. Along with the recognition of this problem there has developed a great increase in the use of nitrogen fertilizers. Coupled with the increased use of nitrogen there has come about an increasing awareness of the problem involved in the use of nitrogen fertilizers.

Seriousness Of Dodder In Production Of Alfalfa Seed In Millard County, Lloyd Claude Warner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dodder is the common name for the group of plants in the genus Cuscuta. It is a serious weed in nearly all the legume seed producing areas of southern and western United States (5). Dodder is of major economic importance in the production of alfalfa, lespedeza, clover, and of less importance in such crops as flax, onions, sugar beets, and some ornamentals.

In Millard County, which is the most important alfalfa seed producing area in Utah, growers consider dodder one of their worst threats to alfalfa seed production.

A major factor that contributes to the dodder problem in Millard …

Research On Legume Pollination, George E. Bohart

All PIRU Publications

No abstract provided.

Influence Of Logging On Douglas Fir Beetle Populations, R R. Lejeune, L H. Mcmullen, M D. Atkins

The Bark Beetles, Fuels, and Fire Bibliography

All species of bark beetles of economic importance prefer to attack freshly-killed host material. Logging slash, wind-throw, and fire-killed timber provide ideal breeding grounds for bark beetles. A few species, mostly in the Dendroctonus group, are able to kill living trees. When beetles in the group, raised in preferred host material, cannot find any or enough freshly-killed trees, logs, or slash to enter, they may attack living trees. In the interior of British Columbia, infestations of the Douglas fir beetle can often be traced to logging disturbance.

Utah State University Commencement, 1961 – Main Campus, Utah State University

Commencement Programs

Sixty-Eighth Annual Commencement of Utah State University

General Catalog 1961, Utah State University

University Catalogs

General Catalog of 1961

Contains course descriptions, University college calendar, and college administration.

Farm & Home Science Vol. 21 No. 3, September 1960

Utah Science

Ground covers for collecting precipitation, by C. W. Lauritzen 66

People in the news 68

Arthritis, by J. L. Shupe 70

Need for drainage, by L. Wilson 72

Changing effectiveness of antibiotics, by J. O. Anderson 74

Demonstrating the management of poorly drained soils, by F. W. Keifer, Jr 76

Does range seeding pay? by C. W. Cook and R. D. Lloyd 78

Utah' red meat slaughtering and packing industry, by N. K. Roberts and B. Warnick 80

Economical water trough and mineral box, by M. L. Dew and L. E. Harris 82

Utah State University Commencement, 1960 – Main Campus, Utah State University

Commencement Programs

Sixty-Seventh Annual Commencement of Utah State University

Habitat Distribution Of Small Mammals In The Clifton Basin Franklin County, Idaho, Douglas Bruce Mchenry

Biology

Mammalogists are becoming increasingly interested in the problems of population dynamics of small mammals. Most species of small mammals show characteristic preferences for certain habitats distinguished by vegetational types. These preferences affect the distribution and abundance of the animal populations. Thus, investigations of the responses of small mammal populations to vegetational types contribute to a greater understanding of population dynamics. Small mammals also respond to seasonal changes in vegetation which influence population distribution and abundance.

Serum Protein Changes In Calves Experimentally Infected With Haemonchus Placei And Ostertagia Ostertagi, Ferron L. Andersen

Biology

Parasitism as an advers factor in the production of marketable livestock has long been a matter of considerable interest. Two of the most common internal parasites of cattle in the United States are Haemonchus placei (large stomach worm or wire worm) and Ostertagia ostertagi (medium stomach worm). The symptoms produced by these parasitic roundworms are marked anemia, unthriftiness, edema and general emaciation of the host animal. As in many other parasitic diseases the losses incurred are of the type which are hard to evaluate, but recent estimates relative to losses due to parasitism in cattle and sheep in the United …

The Composition, Abundance And Depth Distribution Of The 1957 Summer Net Zooplankton Of Bare Lake, Alaska, Robert F. Raleigh

Biology

Physical description Bare Lake is a small, unstratified lake located on the southwest end of Kodiak Island, Alaska. The lake occupies an oval-shaped basin with a maximum length of 1,222 meters, a maximum width of 495 meters and a total area of approximately 49 hectares. It has a maximum depth of 7.5 meters and a mean depth of 4 meters (Figure 1).

Studies In Experimental Evolution, William Sidney Boyle

Faculty Honor Lectures

The Principle of organic evolution is the most fundamental one yet discovered in the sciences concerned with the nature and origin of living things. During the one hundred years which have elapsed since Darwin's explanation of the mechanisms of evolution a great deal has been learned to supplement his theory. Nevertheless, students of evolution universally acknowledge the significance of his profound contributions. The importance of natural selection as a creative force in evolution is inescapable.

The present discussion is chiefly concerned with techniques which the writer has used to accelerate, or at least to manipulate, the evolutionary processes. It may …

Habitat Distribution Of Small Mammals In The Clifton Basin Franklin County, Idaho, Douglas Bruce Mchenry

Biology

Mammalogists are becoming increasingly interested in the problems of population dynamics of small mammals. Most species of small mammals show characteristic preferences for certain habitats distinguished by vegetational types. These preferences affect the distribution and abundance of the animal populations. Thus, investigations of the responses of small mammal populations to vegetational types contribute to a greater understanding of population dynamics. Small mammals also respond to seasonal changes in vegetation which influence population distribution and abundance.

Serum Protein Changes In Calves Experimentally Infected With Haemonchus Placei And Ostertagia Ostertagi, Ferron L. Andersen

Biology

Parasitism as an advers factor in the production of marketable livestock has long been a matter of considerable interest. Two of the most common internal parasites of cattle in the United States are Haemonchus placei (large stomach worm or wire worm) and Ostertagia ostertagi (medium stomach worm). The symptoms produced by these parasitic roundworms are marked anemia, unthriftiness, edema and general emaciation of the host animal. As in many other parasitic diseases the losses incurred are of the type which are hard to evaluate, but recent estimates relative to losses due to parasitism in cattle and sheep in the United …

The Composition, Abundance And Depth Distribution Of The 1957 Summer Net Zooplankton Of Bare Lake, Alaska, Robert F. Raleigh

Biology

Physical description Bare Lake is a small, unstratified lake located on the southwest end of Kodiak Island, Alaska. The lake occupies an oval-shaped basin with a maximum length of 1,222 meters, a maximum width of 495 meters and a total area of approximately 49 hectares. It has a maximum depth of 7.5 meters and a mean depth of 4 meters (Figure 1).

The Composition, Abundance And Depth Distribution Of The 1957 Summer Net Zooplankton Of Bare Lake, Alaska, Robert F. Raleigh

Biology

Physical description Bare Lake is a small, unstratified lake located on the southwest end of Kodiak Island, Alaska. The lake occupies an oval-shaped basin with a maximum length of 1,222 meters, a maximum width of 495 meters and a total area of approximately 49 hectares. It has a maximum depth of 7.5 meters and a mean depth of 4 meters (Figure 1).

Serum Protein Changes In Calves Experimentally Infected With Haemonchus Placei And Ostertagia Ostertagi, Ferron L. Andersen

Biology

Parasitism as an advers factor in the production of marketable livestock has long been a matter of considerable interest. Two of the most common internal parasites of cattle in the United States are Haemonchus placei (large stomach worm or wire worm) and Ostertagia ostertagi (medium stomach worm). The symptoms produced by these parasitic roundworms are marked anemia, unthriftiness, edema and general emaciation of the host animal. As in many other parasitic diseases the losses incurred are of the type which are hard to evaluate, but recent estimates relative to losses due to parasitism in cattle and sheep in the United …

Habitat Distribution Of Small Mammals In The Clifton Basin Franklin County, Idaho, Douglas Bruce Mchenry

Biology

Mammalogists are becoming increasingly interested in the problems of population dynamics of small mammals. Most species of small mammals show characteristic preferences for certain habitats distinguished by vegetational types. These preferences affect the distribution and abundance of the animal populations. Thus, investigations of the responses of small mammal populations to vegetational types contribute to a greater understanding of population dynamics. Small mammals also respond to seasonal changes in vegetation which influence population distribution and abundance.

The Effects Of Flouride Ion On Some Blood Constituents Of Rainbow Trout, Salmo Gairdneri, Linnaeus, Richard H. Alger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the past quarter of a century there has been considerable investigation into the effects of fluorides on living organisms. It has been well established, as a result of these studies, that both small and elevated amounts of fluorides present in the environment may have a marked toxic effect upon gaining entry into the organism. Much of the research involving fluorides and the living organism has been confined to experimentation with animals, although considerable evidence indicates that plants are also subject to injury if fluorides are present in the atmosphere or the soil.

The great majority of the research dealing …

Observations On The Life History Of Channel Catfish, Ictalurus Punctatus (Rafinesque) In Utah Lake, Utah, Robert E. Lawler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The channel catfish, Ictalurus punctatus (Rafinesque), was first introduced into Utah Lake in the summer of 1911, and has since been stocked in the lake on numerous occasions. It has only been in the last few years that the channel catfish has become an important game fish in Utah. As the value of the channel catfish, as a game fish, increased, it has become increasingly important to the state to maintain this species for present and future generations. This study was initiated in 1958 and completed in 1960, and was financed by the Utah State Department of Fish and Game. …

Relationship Of Certain Environmental Factors To Benthic Fish Densities In Bear Lake, Idaho-Utah, Thomas J. Hassler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The project was initiated in June of 1958 and financed by the National Science Foundation and the Wildlife Management Department of Utah State University.

The broad aspects of the study were to determine if a relationship exists between certain physical and biological factors and benthic fish densities. The project vas divided into two parts: (l) to determine the time and extent of thermal stratification, zooplankton densities, conductivity changes within the lake and conductivity differences between the lake and its tributaries; (2) to determine it a relationship exist between benthic fish densities, temperatures, depths, conductivities and benthic zooplankton densities. The data …

Limnological Studies On Hyrum Reservoir, In Northern Utah, Royal A. Rich

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

With an ever increasing fishing pressure on our natural and artificial lakes every measure possible must be taken to preserve the sport for its many thousands of participants.

Hyrum Reservoir is easily accessible to the fishermen of northern Utah. In recent years the lake has offered little in the way of fishing. It is hoped that the information accumulated in this study will help pave the way to a successful stocking program and that Hyrum Reservoir will be one of the productive fishing areas available to Utah anglers.

The objectives of this investigation were:

1. To determine the extent of area …