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Alfalfa As A Source Of Carotene In The Diet Of Chicks, James Joseph O'Toole

Biology

The value of carotene as a precursor of vitamin A in the animal body was shown conclusively by the work of Moore (20). Rats which had been depleted of vitamin A and fed carotene following the depletion period, showed vitamin A absorption maxima in liver tissue when assayed spectrophotometrically. Depleted rats fed on the carotene-free diet showed no vitamin A absorption spectra. Capper, McKibben and Prentice (6) showed that chickens were also able to convert carotene into vitamin A.

A Cultural And Transmission Study Of Staphylococci In Turkeys, Royal Anderson Bagley

Biology

The turkey industry is one of the largest agricultural pursuits of the state of Utah. Synovitis is one of the most costly diseases in this industry. Surveys in limited areas in 1944 showed 39% of the flocks were afflicted, with mortality varying from 5% to 20%. In 1947 and 1948 there was widespread occurence of the disease throughout the state; the disease usually occurred between the 9th to the 12th week of age and persisted until marketing. Synovitis has caused considerable economic loss to the grower.

The Biology Of Nabis Alternatus Parshley (Hemiptera, Heteroptera) And Its Predacious Relationship To Some Alfalfa Pests In Cache County, Utah, Earl John Taylor

Biology

Nabis alternatus Parshley is a hemipterous insect belonging to the family Nabidae. It is commonly found in alfalfa fields, among small grains, native grasses, and on rangeland throughout Utah. A need for life cycle studies has existed for species of this family. This becomes evident as one reads the fragmentary reports of their habits as insect predators.

Alfalfa As A Source Of Carotene In The Diet Of Chicks, James Joseph O'Toole

Biology

The value of carotene as a precursor of vitamin A in the animal body was shown conclusively by the work of Moore (20). Rats which had been depleted of vitamin A and fed carotene following the depletion period, showed vitamin A absorption maxima in liver tissue when assayed spectrophotometrically. Depleted rats fed on the carotene-free diet showed no vitamin A absorption spectra. Capper, McKibben and Prentice (6) showed that chickens were also able to convert carotene into vitamin A.

The Biology Of Nabis Alternatus Parshley (Hemiptera, Heteroptera) And Its Predacious Relationship To Some Alfalfa Pests In Cache County, Utah, Earl John Taylor

Biology

Nabis alternatus Parshley is a hemipterous insect belonging to the family Nabidae. It is commonly found in alfalfa fields, among small grains, native grasses, and on rangeland throughout Utah. A need for life cycle studies has existed for species of this family. This becomes evident as one reads the fragmentary reports of their habits as insect predators.

Levels Of Lygus Infestation And Stages Of Plant Development As Related To Alfalfa-Seed Production, B. Austin Haws

Biology

Alfalfa-seed production was one of Utah's most important and lucrative forage crops 24 years ago. Statistical reports compiled by Professor C. J. Sorenson, Research Professor of Etomology at Utah State Agricultural College (30), show that in 1925 the 69,000 acres of alfalfa seed raised in Utah yielded an average of 6.37 bushels of seed per acre. Utah's alfalfa-seed yield in 1925 was 42 percent of the total alfalfa seed grown in the United States. This bumper crop brought an income of approximately $4,433,022 to Utah seed producers that year.

Supply And Demand Of Secondary School Teachers In Utah, George W. Sperry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the years of World War II the faculties of the public schools in Utah, as well as in the rest of the nation, were depleted to a serious extent, and enrollment in teacher training institutions throughout the country decreased. Because of this condition the State Department of Education in Utah as well as in other states was forced to issue letters of authorization to teachers who could not meet standard certification requirements in order to staff the schools. Many of these teachers are still teaching today.

A study of the history of education in the United States and in …

Emergence And Survival Of Four Introduced Wheatgrasses As Influenced By Rate And Season Of Planting On Abandoned Farm Lands Of Utah, Donald N. Hyder

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A great deal has been accomplished in developing methods of restoring abused lands through seeding, yet there is much to be desired in refinement of techniques and in substantiation of previous experimental results. Controversial opinions as to the best season of planting indicate that additional trials are needed. New species need to be introduced, developed, and proved. Methods are needed which lead to more efficient utilization of those factors limiting the degree of success in establishment. Since moisture is the most predominant limiting factor throughout the arid and semi-arid range land, special attention is given to more efficient utilization of …

Teaching Combinations Of The Men Teachers Of Physical Education In The Public High Schools Of Utah, Earl G. Holmstead

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The almost universal acceptance of physical education as an integral part of education has resulted in state legislation throughout the United States requiring the teaching of physical education in the public schools. Because of this legislation, it has become necessary to better prepare teachers to carry on a worthwhile physical education program. Efficient teaching cannot be expected to result from lack of training and inadequate preparation; therefore, the college graduate who holds a degree with no specialized training is not adequately prepared to teach effectively and efficiently in our school systems of today.

In regard to the qualifications and functions …

Bulletin No. 336 - Utah Agricultural Experiment Station Biennial Report, 1946-1948, R. H. Walker

UAES Bulletins

During the past biennium there has been a general expansion in the research program of the Agricultural Experiment Station. This was made possible through increased state legislative appropriation and through federal funds made available by the Agricultural Research and Marketing Act which passed Congress in August 1946, although funds were not available until August 1947. Grants-in-aid by state and private agencies have also made other research possible.

General Catalogue 1949, Utah State University

University Catalogs

General Catalogue of 1949

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

General Catalogue 1948, Summer, Utah State University

University Catalogs

General Catalogue of 1948 Summer

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

Fluctuations In Numbers Of Trichomonas Foetus Occuring In The Preputial Cavity Of Bulls, V. Reid Bishop

Biology

Since 1932 numerous and widely distributed papers on Trichomonas foetus and bovine trichomoniasis have appeared in the various scientific journals which demonstrate the importance of the disease and organism throughout the world. Prior to this period, most scientists and practitioners of veterinary medicine were of the opinion that practically all reproductive difficulties of an infectious nature occuring in cattle were caused by Brucella abortus. It is now established that Trichomonas foetus is an important organism in causing abortions and infertility in cattle.

Fluctuations In Numbers Of Trichomonas Foetus Occuring In The Preputial Cavity Of Bulls, V. Reid Bishop

Biology

Since 1932 numerous and widely distributed papers on Trichomonas foetus and bovine trichomoniasis have appeared in the various scientific journals which demonstrate the importance of the disease and organism throughout the world. Prior to this period, most scientists and practitioners of veterinary medicine were of the opinion that practically all reproductive difficulties of an infectious nature occuring in cattle were caused by Brucella abortus. It is now established that Trichomonas foetus is an important organism in causing abortions and infertility in cattle.

Some Factors Affecting Hatchability In Turkey Eggs, Dean Charles Fletcher

Biology

Low hatchability of eggs in some breeds of turkeys has long been a serious problem among turkey raisers over the entire United States. The average hatchability is approximately 65 per cent in all breeds; however, in the broad-breasted bronze variety the hatchability is only 47 per cent (1). In the Intermountain areas those hatches are appreciably lower (2). The broad-breasted bronze turkey is one of the larger breeds and is one of the best-selling varieties. Due to the initial high cost of turkey eggs (35 to 48 cents each) and the high mortality during incubation, considerable sums of money have …

The Life History And Control Of Sheep Tick, Melophagus Ovinus (Linn.), In Northern Utah, Ted Tibbetts

Biology

The sheep tick, Melophagus ovinus (Linn.), is a serious ectoparasite of sheep in the sheep raising areas of Utah. Unless a more effective method of control is developed, this insect pest will continue to cause appreciable losses to the producer. Sheep ticks feed upon the blood of their hosts causing great irritation and discomfort and reduced vitality. Sheep are often so annoyed by this pest that they refuse to eat normally. This results in retardaton of growth and impairment of the best health and condition for tick-infested sheep. The sheep tick is suspected of transmitting the disease organisms, Rickettsia melophaga …

The Life History And Control Of Sheep Tick, Melophagus Ovinus (Linn.), In Northern Utah, Ted Tibbetts

Biology

The sheep tick, Melophagus ovinus (Linn.), is a serious ectoparasite of sheep in the sheep raising areas of Utah. Unless a more effective method of control is developed, this insect pest will continue to cause appreciable losses to the producer. Sheep ticks feed upon the blood of their hosts causing great irritation and discomfort and reduced vitality. Sheep are often so annoyed by this pest that they refuse to eat normally. This results in retardaton of growth and impairment of the best health and condition for tick-infested sheep. The sheep tick is suspected of transmitting the disease organisms, Rickettsia melophaga …

Some Factors Affecting Hatchability In Turkey Eggs, Dean Charles Fletcher

Biology

Low hatchability of eggs in some breeds of turkeys has long been a serious problem among turkey raisers over the entire United States. The average hatchability is approximately 65 per cent in all breeds; however, in the broad-breasted bronze variety the hatchability is only 47 per cent (1). In the Intermountain areas those hatches are appreciably lower (2). The broad-breasted bronze turkey is one of the larger breeds and is one of the best-selling varieties. Due to the initial high cost of turkey eggs (35 to 48 cents each) and the high mortality during incubation, considerable sums of money have …

The Life History And Control Of Sheep Tick, Melophagus Ovinus (Linn.), In Northern Utah, Ted Tibbetts

Biology

The sheep tick, Melophagus ovinus (Linn.), is a serious ectoparasite of sheep in the sheep raising areas of Utah. Unless a more effective method of control is developed, this insect pest will continue to cause appreciable losses to the producer. Sheep ticks feed upon the blood of their hosts causing great irritation and discomfort and reduced vitality. Sheep are often so annoyed by this pest that they refuse to eat normally. This results in retardaton of growth and impairment of the best health and condition for tick-infested sheep. The sheep tick is suspected of transmitting the disease organisms, Rickettsia melophaga …

An Evaluation Of The Guidance Tests Given At Utah State Agricultural College For The Year 1946-1947, Robert L. Egbert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The guidance tests given at Utah State Agricultural College are used in helping students in the selection of their vocational objectives and in helping in the planning of a program of study. The problem of this thesis is threefold: (1) to determine the value of the entrance tests given at the Utah State Agricultural College in the Fall of 1945-47 for predictive purposes in counseling students on vocational choices; (2) to compare by statistical analysis, using the entrance tests as criteria, students from the various high schools, and to compare by similar analysis the quality of students entering the various …

Factors Influencing The Validity Of Pheasant Census Methods, Sevier County, Utah, Eldon H. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The measurement of animal populations is a most important phase of wildlife management. The initiation of systematic management of any unit of specific game habitat usually involves the measurement of the stock on hand as a primary step. In practice game inventory performs a twofold function; namely, as a medium determining the efficacy of past management practices as a basis for future manipulations and as an aid in the establishment of game protective or removal policies.

A census, in the sense applied in this study, is best defined as the enumeration of a population on a given area at a …

Insect Pests And Predators In Relation To Alfalfa Seed Setting In Southern Alberta And The Effects On These Insects Of Three Chlorinated Hydrocarbons, Gordon A. Hobbs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa-insect investigations, because of necessity, had been neglected in the province of Alberta during the war years. Work was resumed on this project in the spring of 1946 by the writer.

So much progress has been made in the field of insect pest control since the advent of war-born chlorinated hydrocarbons, that it was thought advisable to design an experiment which would test under Alberta conditions the results obtained in Utah where most of this type of research had been previously carried out, and would thus serve to bring investigations in this part of Canada up to date.

It is …

A Curriculum Study Of The Biological Science Courses In The Secondary Schools And College Of Utah During 1947-48, Merrill H. Gunnell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

At the present time there is a feeling among biologists in Utah that there should be improvement in biological science courses and course sequence to better fill the needs of the non technical student. There are many students filling group requirements with an accumulation of courses which may not provide them with the more important fundamental concepts and principles in biology. Information concerning these courses in high schools and colleges in necessary to provide a basis for curriculum revision in the field. Such information should be useful in evaluating the present system and suggesting modifications. Because of the need for …

Aspen Defiberization And Refining Of Product, Robert Craig Jr.

Aspen Bibliography

Because of the great demand for wood fiber and because there is an abundance of aspen available¹/ for this purpose, its conversion into a usable fiberized material offers possibilities. It also affords an outlet for low-quality bolts developed in any aspen logging operation or from land of poor quality.

General Catalogue 1948, Utah State University

University Catalogs

General Catalogue of 1948

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

The Utah Juniper, Volume 19, Utah State University

The Utah Juniper

Annual publication of The Utah Foresters, Utah State Agricultural College.

Farm & Home Science Vol. 8 No. 4, December 1947

Utah Science

Recommended agricultural production program for Utah for 1948, by W. P. Thomas and G. T. Blanch 1

Research in home economics expands 2

Disease problems in the production of tomato plants in the Moapa Valley, by H. L. Blood 3

New grass-legume pasture mixtures are high producers, by W. Keller, G. Q. Bateman and J. E. Packer 5

Disease threatens celery industry in Utah, by E. L. W aldee 6

The impact of war on the future marketing of poultry products in the Western States, by Carl Frischknecht 8

Seeding ranges to grass, by C. W. Cook and L. A. …

Farm & Home Science Vol. 8 No. 3, September 1947

Utah Science

No abstract provided.

General Catalogue 1947, Summer, Utah State University

University Catalogs

General Catalogue of 1947 Summer

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

Lygus-Bug Infestations As A Factor Affecting Flowering And Pollination In Alfalfa, Reed S. Roberts

Biology

The Mormon pioneers planted alfalfa shortly after they settled in Utah. Since then its acreage, production and value has increased steadily until now alfalfa is the most important agricultural crop grown in the state.