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Production And Intake Responses Of Dairy Cows Fed Four Levels Of Malic Acid, Juan Carlos Martinez Alferez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Thirty-two lactating cows were assigned at random to four treatments of malic acid to determine if these levels had an effect on milk production, milk composition, feed intake, and efficiency of feed utilization. Malic acid allotment for each treatment consisted of 1) 15.4, 2) 11.6, 3) 7.7, and 4) 0 grams of malic acid fed per kilogram of concentrate. Concentrate was fed according to production at a rate of one kilogram per two kilograms of milk in excess of 9.1 kilograms of milk per cow daily. Alfalfa hay was fed free choice and corn silage at a rate of 11.4 …

Comparison Of Microbial Activity In Desert Soils Of The Western United States, Patricia Ann Trujillo Y Fulgham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soils from four regional deserts, Great Basin, Sonoran, Chihuahuan, and Mojave, were collected at times throughout the year which would best exhibit microbial response to moisture or vegetation. The soils were analyzed for several chemical and physical properties. Biological and biochemical characteristics, namely respiration, dehydrogenase activity, adenosine triphosphate concentration, proteolytic activity, nitrification potential, and microbial numbers, were measured.

The soils exhibited fluctuations in microbial activity as measured by respiration, dehydrogenase activity, adenosine triphosphate concentration, proteolytic activity, and nitrification potential during different moisture seasons.

Increase in soil moisture as modified by precipitation did not cause a significant difference in respiration or …

Life Span Learning And Utah State University, J. Clark Ballard

Faculty Honor Lectures

The recent Kellogg Life Span Learning Grant has focused national attention on Utah State University as a model for life span learning. Historically, Extension and at least the rudiments of life span learning, have been a part of Utah State University since its founding in 1888. In 1896, the State passed the Cazier Bill which appropriated $1,500 to conduct a Farmers Institute in each county at least once a year (Ricks 1938). Such activities were mostly conducted on an informal basis until 1911 when Luther M. Winsor, Instructor of Irrigation, was employed as county agent in the Uintah Basin. This …

Utah Science Vol. 39 No. 1, March 1978

Utah Science

Breeding Grasses for Western Range Kay H. Asay. Douglas A. Johnson. and Douglas R. Dewey A cooperative research program (USDA/USU) is producing grasses precisely tailored to meet western range needs. Using field and laboratory techniques. the researchers are combining the desirable characteristics of various grass species into new “ packages” 3

Characteristics of an Old Stand of Dryland Alfalfa M. D. Rumbaugh If you are convinced that alfalfa can only produce forage under irrigation-think again. Some 1954 dryland seedings of several varieties are indicating that certain alfalfas have potentials for drought tolerance 6

Science Short Virus-Virus-Who Has the Virus? A …

Proceedings From The 15th Annual Marschall Invitational Italian Cheese Seminar 1977, Various Authors

Cheese Industry Conference

No abstract provided.

Buzzer 1978, Utah State University

USU Buzzer Yearbook

1978 yearbook for Utah State University. Published from 1909-1971 with single issues in 1978 and 1981.

Desert Biome Aquatic Program: A Literature Search For Biological And Physical Parameters For Use In Estimation Of Zooplankton Production, J. Anne Holman

Memorandum

No abstract provided.

Biomass And Nutrient Distribution In Aspen, Pine, And Spruce Stands On The Same Soil Type In Minnesota, David H. Alban, Donald A. Perala, Bryce E. Schlaegel

Aspen Bibliography

Vegetation and soils were sampled in adjacent 40-year-old stands of red pine (Pinus resinosa Ait.), jack pine (Pinus banksiana Lamb.), white spruce (Picea glauca (Moench.) Voss), and aspen (Populus tremuloides Michx., P. grandidentata Michx.) on a very fine sandy loam soil in north-central Minnesota. Total tree biomass was greatest for red pine followed by by aspen, spruce, and jack pine. Nutrient weights (N, P, K, Ca, Mg) in the trees were greatest in aspen followed generally by spruce, red pine, and jack pine. Particularly large proportions of biomass and nutrients were found in aspen bark and …

General Catalog 1978-1980, Utah State University

University Catalogs

General Catalog of 1978-1980

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

Cell Quota Growth And Uptake Models Applied To Growth Of Selenastrum Capricornutum, Printz In A Non-Steady State Environment, Kenneth A. Voos, Ronald F. Malone, William J. Grenney

Reports

Recently propsed algal uptake and growth models dependent on the cell quote (Q), the intracellular limiting nutrient to cell population quotient, were analyze and applied to experimental data. The data base used for comparing the models consisted of

Evaluation Of The Long Term Effects Of Irrigation With Wastewater, James H. Reynolds, M. O. Braun, W. F. Campbell, R. W. Miller, L. R. Anderson

Reports

Introduction: Background: The application of municipal wastewater to the land or using the soil mantle as a wastewater treatment system has been practiced for many years. The history of land application dates back to ancient Athens. Sewage farming or the transportation of wastewater to rural areas for irrigation and disposal was practiced in Eurpose as early as 1559. The practice became fairly widespread in England, France, Germany, Poland, Austria, and the United States during the late 1800's [

Mathematical Equations Describing Chick Performance And Carcass Composition As A Function Of Diet Protein And Energy Levels, Naiyana Nakhata

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Previous work at Utah State University determined minimum levels of different nutrients that would produce the maximum rate of gain or gain/feed ratio by feeding graded levels of the nutrients. Fitting broken lines to the data from work with one nutrient tended to underestimate the minimum requirement for that nutrient. It appeared that the response was not linear up to the level required to give maximum performance as the "broken line" approach to estimating the requirement assumes. It seemed worthwhile to try to describe the relation between ration level of a nutrient and chick performance by means of a mathematical …

Utah Science Vol. 38 No. 4, December 1977

Utah Science

Seeking a Turn-around for Cancer Stephen J. Kleinschuster Cattle cancer eye may prove to be one answer in developing immunotherapeutic procedures for human carcinomas. 99

Comparative Medicine: A Source of Insights Lois M. Cox Veterinary science and human genetic researchers combine forces to do long term studies on the disfiguring and disabling disease, hereditary multiple exostosis 102

A New Branch Diagnostic Lab Kent R. Van Kampen and Ross A. Smart Utah County is financing the structure of a new USU Branch Diagnostic Lab in Utah County. The facility will be several times larger than the original. 106

Hows and Whys …

Utah Science Vol. 38 No. 3, September 1977

Utah Science

Is It Meat? D. G. Hendricks, A. W. Mahoney, and V. T. Mendenhall The red meat industry would like to include mechanically deboned meat in many of their products. Consumer groups, originally hostile to the change, might want to take another look. 67

Asking Questions of Desert Shrubs Lois M. Cox Two major photosynthetic pathways (C:l and C4) have been ob• jects of a 6•year study at USU. Along with the surprises came an unexpected bonus: a new tool to measure grazing response. 71

Shrubs Plus Grass for Livestock Forage: A Possibility Gordon A. Van Epps and C. M. (Cy) …

General Catalog 1977, Summer, Utah State University

University Catalogs

General Catalog of 1977, Summer

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

Utah Science Vol. 38 No. 2, June 1977

Utah Science

Unlocking the Secrets of Larkspur John D. Olsen Why and how larkspur kills sheep and cattle has perplexed researchers since the early 1900s. Just•completed work has finally substantiated the differences in sheep/cattle toler• ance and produced the techniques needed for intensive laboratory investigations. 35

Corn Production Under Drought Conditions R. J. Hanks, V. Sorensen, and A. Retta As demands for water proliferate in the arid West, farmers growing crops such as corn will have to become increasingly efficient in managing what supplies they have. An account• ing system for water has been developed to help them achieve that goal. 38 …

The Parent Is A Teacher, Alan Hofmeister

Faculty Honor Lectures

There are numerous interpretations and approaches to parent instruction ranging from high-school classes on parenting to intensive long-term counseling of parents with serious child-management problems. Some programs attempt to prepare the parent to handle the broad range of personal and social decisions associated with parenthood. Another approach is to provide the parent with skills to facilitate the development of appropriate, academic, social and self-care behavior in their children

Some Effects Of Different Temperatures On The Development Of The Black Grass Bug (Labops Hesperius Uhler) From The Egg Through The Adult Stage, Osiris L. Paraqueima

Biology

A study of some effects of different temperatures on the development of the black grass bug (Labops hesperius Uhler) was conducted in the laboratory and the results compared with the insect's development in the field. The purpose of this study was to develop a method of rearing grass bugs in the laboratory so research with these insects could be conducted all year, and to formulate a growing degree hour model that might help predict hatching and development of the bugs in the laboratory and field, and be a guide in timing proper control measures in the field. L. hesperius were …

The Demography Of The Sagebrush Defoliator,Aroga Websteri Clarke (Lepidoptera: Gelechiidae), And Its Impact On Artemisia Tridentata, Anne Kristin Temte

Biology

The demography of the sagebrush defoliator, Aroga websteri Clarke, and its impact on the productivity of Artemisia tridentata were studied during 1974 and 1975. Four objectives were pursued: 1) to continue demographic studies begun in 1971 to determine causes for population fluctuations, 2) to correlate temperature and precipitation records from the study site with changes in the defoliator populations and with sagebrush quality, 3) to assess the impact of defoliator infestation on the subsequent productivity of Artemisia tridentata, and 4) to assess the long-term impact of severe defoliation on the survival and regrowth of Artemisia tridentata. The defoliator population was …

Examination Of The Effect Of Age, Education, Parity, Pregravid Weight, Pregnancy Weight Gain, And County Of Residence On Incidence Of Low Birth Weight Infants In Utah And Nevada, Marsha H. Read

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

One of the primary purposes of the investigation was to examine the impact of a number of variables on the incidence of low birth weight in two states, Utah and Nevada, that have divergent low birth weight incidences. The sample size obtained from birth certificate data for this purpose was 51,147 (1969-1974) for Nevada and 26,464 (1970) and 29,422 (1974) for Utah. Additionally, separate analyses were made for Utah and Nevada data available for the year 1974. The respective sample sizes for this year were 29,422 (Utah) and 8,256 (Nevada). Least squares analysis indicated sex of the infant, race of …

Browse Evaluation And Survey Techniques For The Uinta North Slope Moose Herd, William H. Babcock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was conducted on the North Slope of the Uinta Mountains from January, 1972 through June, 1974, to determine the effects of three simulated levels of moose utilization on the crude protein content, phosphorus content, digestibility and vigor of willow plants. A comparison was also made on the crude protein content, phosphorus content and digestibility of current year's versus past years' willow growth. Finally, the validity of direct and indirect population enumeration methods was compared for the possible development of a standardized moose survey technique.

Clipping caused a highly significant increase in crude protein and phosphorus content between treatment …

Religious And Geographic Correlates Of Breast Feeding, Joan Boyington Sellers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study focused mainly upon regional and religious variables influencing a mother's decision for a particular infant feeding practice. The problem of this study was to investigate the breast feeding and maternal attitudes of Mormon and non-Mormon mothers who were raised within the Mountain States region and compare them to the attitudes of Mormon and non-Mormon women who are not residents of this region.

No significant differences were found between the resident and non- resident women in their practice of bottle or breast feeding, nor was any significant difference found between the number of Mormon and non-Mormon women who breast …

Consumption, Digestion, And Utilization By Goats Of The Dry Matter And Nitrogen In Diets Containing Oak (Quercus Gambelii) Foliage, Anastasios Stefanos Nastis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Part I
A study of animal performance was made with goats fed, ad libitum ground and pe11eted mixtures of Gambe1 oak and alfalfa. Intake, digestibility, metabolizable nitrogen, and metabolized energy of oak diets were generally lower than those for a control alfalfa diet. However, no significant differences in live weight gains of experimental animals were found. No apparent toxicity was detected in goats fed diets containing up to 80 percent oak for 72 days.

Part II
Mixtures of oak (Quercus gambelii) and alfalfa (Medicago sativa) were used to evaluate three laboratory techniques, the Tilley and Terry …

Diet Composition And Activities Of Elk On Different Habitat Segments In The Lodgepole Pine Type, Uinta Mountains, Utah, William B. Collins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The biweekly diets of tame elk (Cervus canadensis nelsoni) were established on a species dry-weight basis for different habitat segments of the lodgepole pine (Pinus contorta) type, Principal species in the diets (5% or more) on each habitat segment were generally composed of preferred species. However, some highly abundant but non-preferred species took on principal dietary status, whereas some preferred species, scarce in the vegetation, contributed less than 5 percent to diets. Forbs contributed most to total consumption; grasses and sedges were the second largest contributors. Browse appeared to be of limited importance, but mushrooms had …

Forage Preferences Of Mule Deer In The Lodgepole Pine Ecosystem, Ashley National Forest, Utah, Joseph A. Deschamp

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the summer of 1976, five tame, trained mule deer (Odocoileus hemionus hemionus) were used to determine botanical composition and relative preference of mule deer diets on five habitat segments in the lodgepole pine (Pinus contorta) ecosystem of northeastern Utah. Diets were statistically analyzed according to estimated weight consumption per unit of time spent feeding on the different segments. Habitat segments sampled were: clearcut forest, dry and wet meadow, mature forest, and stagnated forest.

Diets differed between segments mainly because of differences in plant species available and their abundance. The diets in the non-forested segments averaged …

Importance Of Legumes, Especially The Trifolium Species, In Range Improvement, Abdelhai A. Ibnattya

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

This paper analyzes the most important characteristics of legumes, which have led to their utilization in range improvement all over the world. It emphasizes the Trifolium spp. (esteemed among the legume family), their contributions to soil a n d forage improvement, and the success obtained from their utilization, especially in semi-arid ranges. Many references originally from Australia, United States, Morocco, and Portugal were used as sources of data because of the ample utilization of these species in these countries. Careful analysis related to requirements, potentialities, and production of clovers were used and recommendations were made for different ecological areas where …

Energy Usage Trends, Energy-Food Conversion Efficiency, And Relative Energy Efficiency Of Primary Crop Agriculture, Estimated From Energy-Nutrient Conversion Ratios In Mexico, India, United States, And Japan, Gerald L. Blight

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Energy-nutrient conversion ratios, as a measure of relative agricultural efficiency for Mexico, India, in the United States, and Japan between 1951 and 1974, were calculated for protein, B-vitamins, calcium, iron and food energy production. Estimates from the different nutrient ratios showed a range in percent change of production efficiency over the twenty-four year period. Indian estimates were the most consistent with only a 7 percent variability. Japan (23 percent), United States (42 percent), and Mexico (43 percent) each showed greater variability in their efficiency estimate ranges from aggregate energy-nutrient conversion ratios. Japan was the only country for which negative trends …

A Self-Instructional, Multi-Media Approach To Facilitate The Teaching Of The Index Of Nutritional Quality, Claudia Kay Probart

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A review of the literature dealing with nutrition education established the following: (a) that there is a need for nutrition education at the elementary school level; (b) that elementary teachers do not always have the background or motivation to meet this need for nutrition education; and (c) that new educational methods that are easier to understand and more highly motivating are needed.

The Index of Nutritional Quantity (INQ), a nutrient density concept, was developed at Utah State University to answer the need for easily understood and motivating nutrition information. The INQ method of nutrition education has been used and considered …

The Iron Bioavailability Of Mechanically-Deboned Meats, Bonnie Rae Anderson Farmer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two separate experiments were used to investigate iron bioavailability of mechanically-deboned meats using hemoglobin regeneration to measure iron utilization. In both studies, male weanling rats were made anemic by bleeding and being fed a low-iron diet. Experimental diets were control fed to the animals and final hemoglobin concentrations were recorded. Animals were sacrificed and liver iron concentrations determined. The first experiment measured the iron bioavailability of mechanically-deboned and hand-deboned beef plate was better utilized by rats than the iron from mechanically- deboned shank and mechanically-deboned plate. The effect of lipid source and level on iron bioavailability of mechanically-deboned turkey meat …

A Field Study In The Use Of Dietary And Urinary Variables In Determining Osteoporosis In Elderly People, Jane Steger Osborn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three-day dietary records were analyzed for nutrient content and 24 hour urine samples were analyzed for calcium, phosphorous, total nitrogen, and free alpha-amino nitrogen for 210 elderly people. Dietaries and urine samples were collected twice, October and March at five month intervals, for each subject. Increases were found in both dietary intake and urinary components October to March. Based on a criteria of high dietary protein, low dietary calcium, high urinary nitrogen and low calcium, 23 subjects were selected as osteoporotic and and 25 were selected as non-osteoporotic. This method of prediction was not supported by radiological evaluations.

Bone density …