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Utah Science Vol. 35 No. 4, December 1974

Utah Science

Food for Consumers - A living for Producers Doyle J. Matthews 107

Goals for Utah Agriculture D. Wynne Thorne 109

Ag Research in the College of Engineering E. J. Middlebrooks 115

Family Awareness Phyllis R Snow 117

Utah - and the Nation's Needs Thadis W. Box 119

The Importance of Basic Research Ralph M . Johnson 122

Utah's Tourism and Recreation Potential John D. Hunt 126

Agriculture Research Covers Utah 133

New Station Director: Doyle J. Matthews 136

Food, Nutrition, And Health, Problems And Prospects, D. K. Salunkhe

Faculty Honor Lectures

Food, nutrition, and health - and their complex interrelationships - are necessities of life. Basically, nutrition depends on food; health depends on nutrition. Everyone needs to have enough good quality food to sustain himself. Satisfying that need on a world basis must be of concern to each of us.

Although accurate data are lacking, it is estimated that more than two-thirds of today's world population is afflicted by hunger and/ or malnutrition. Almost 300 million children are suffering physical and, probably, mental damage because of insufficient food. This evidence points to one of two conclusions: we have either too many …

Utah Science Vol. 35 No. 3, September 1974

Utah Science

Land Use legislation: Peddling Uphill Backwards B. Delworth Gardener 75

In Utah - Planning at the local level C. M. McKell 76

Land Values in Utah's Canyon Country "H" K. Hancock 81

Rezoning by Auction - A New Approach to land Use Decisions Clark Wiseman 86

A Critical look at land Use Planning W. Cris Lewis 90

A Public Poll on land Use Planning 93

H. Reed Geertsen and H. Bruce Bylund Wilderness Fishing: A Study in Recreational land Use John F. Hoagland and James J. Kennedy 99

What to look For in a lease Larry K. Bond 101

Range …

Utah Science Vol. 35 No. 2, June 1974

Utah Science

The Blue Grouse in Northern Utah David Weber, Barry Barnes, and Jessop B. low 43

An International Approach for Improving Utah's Sheep D. W. Thorne, W. C. Foote, and J. J. Spillett 47

Cardon and Hansel - new smut resistant winter wheat varieties Wade G. Dewey 53

Unsprayed Fruit Trees - how much of a problem to commercial orchards? Donald W. Davis 56

Assessing Feed Quality R. Gaurth Hansen and Lorin E. Harris 58

Veterinary Medicine Helps Humans N. C. Leone 62

Agriculture Wastes and Energy - some problems and potentials J. Clair Batty 66

Science Shorts 52, 71

New …

Effects Of Fertilizers On Cultured Salt Marsh Plants, Ruppia And Chara, Scott Marshall Stenquist

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Widgeongrass (Ruppia maritima), muskgrass (Chara Sp.), and midge larvae (family Chironomidae) were grown under controlled greenhouse conditions using a solution of Logan tap water, 3000 ppm. sodium chloride, and an algicide-fungicide inhibiter. Soil, vegetation, and invertebrates came from a spring-fed marsh in western Utah. Ammonium sulfate, treble superphosphate, and sewage sludge fertilizers were applied to the plants at 5, 10, 20, 25, 50, 75, 100, and 300 pounds per acre equivalents of ammonium sulfate; 5, 25, 50, 75, 100, and 300 pounds per acre equivalents of treble superphsophate; and 5, 25, 100, 200, 300, 400, 500,700, and …

The Production And Prevention Of Stomach Ulcers In Rodents, Eric H. Rudrud

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rats given L-Ascorbic Acid in their drinking water prior to and during starvation did not develop severe ulceration in the glandular portion of their stomachs. Control rats which were either nontreated or given deactivated L-Ascorbic Acid developed severe stomach pathology on the starvation regimen.

The present study was based on the finding that food deprivation results in severe rumenal ulceration in rats. Given that L-AA is essential in maintaining tissue integrity and that ulcers are examples of tissue degeneration, the L-AA in large amounts could retard, or prevent, the formation of starvation induced stomach ulcers in rats.

The results show …

Educational Opportunities For Pregnant Students In Selected Utah Schools, Pearl Bergeson

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

Education of women has been neglected in many ways throughout history. In recent decades educational opportunities for women have been greatly expanded. Women have become leaders in education and compose the majority of public school teachers. In spite of these strides in women's education, and growing educational provisions for both men and women, some special groups remain neglected.

This investigator is particularly concerned with one special group: School-age girls who are pregnant. Special educational needs of most school-age pregnant girls are not being met. These young women often face insurmountable difficulties in the schools.

Characterization Of Selected Bacteria From The North Arm Of The Great Salt Lake, John L. Crane Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Thirteen bacterial cultures were isolated from the North arm of Great Salt Lake during the months of January and February of 1973. Eleven isolates were gram-negative pleomorphic rods which lysed in hypotonic solution. The remaining two were gram-positive cocci. All isolates and one known strain of Halobacterium salinarium were subjected to examination of morphological, cultural, physiological, and biochemical characteristics. A numerical taxonomic analysis was applied to the compiled characters to compute a coefficient of similarity for each individual isolate as compared to all other isolates. A comparative analysis was included in the similarity computation using characters assembled from those reported …

Determination Of Optimum Quality In Ground Turkey Formulation, Juntip Chongdarakul

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ground turkey samples were prepared with different fat levels, fat types, percent mechanically deboned meat and grind. All samples were analyzed at three different time-intervals. Samples were evaluated by chemical, sensory, and physical measurements, in term of stability, water content, fat content, press fluid, water loss, flavor, texture, and hedonic values. Significant differences were determined by analysis of variance.

Coarse ground (5/8") samples showed significantly higher TBA numbers, fat content, total loss, and juiciness. Water content, flavor scores, amount of press fluid, texture scores, and hedonic scores were lower when compared to the fine and medium ground samples.

Results of …

Extractable-Emulsifying Capacity Of Hand And Mechanically Deboned Mutton And Organoleptic Acceptability Of Various Mutton Salami Formulations, Jack Robert Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt soluble extracts from mechanically deboned mutton were significantly higher (P < .01) in pH than the extracts from the hand boned mutton. An associated trend toward greater extractability, however, was not significant. Variation in emulsifying capacity between extracts from carcass parts were highly significant yet significant variation did not occur in the emulsifying capacity of hand versus mechanically deboned mutton. A new term, extractable- emulsifying capacity is presented which incorporates the extractability and emulsifying capacity of meat extracts into one value which should more accurately estimate the contribution of a meat ingredient in forming a stable sausage emulsion.

Salami, utilizing mutton, was formulated from experimental results which indicated that up to 10 percent mutton fat and 68 percent mutton lean was acceptable to panelists. Pork was preferred to beef for use in combination with mutton as determined by panel scores, however disagreement was noted between panelists. Panelists were unable to detect flavor, moisture or texture differences between the final mutton salami and a commercial beef and pork formulation. They did however prefer the appearance of the mutton salami (P < .05).

Effect Of Added Calcium Ions On Relative Milk-Clotting Activities Of Commercial Milk Clotting Enzymes, Nuchanart Pavenayotin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Effect of added calcium ions on the relative milk clotting activities of porcine pepsin, Mucor miehei protease, Endothia parasitica protease, and Mucor pusillus protease was compared with that of rennin. Skimmilk, maintained at pH 6. 3 with 0.000% to 0.030% added calcium chloride, was used as a substrate. The coagulation activity of Mucor pusillus protease appeared to be most sensitive to calcium ions, followed by Mucor rniehei protease, porcine pepsin, rennin, and Endothia parasitica protease. The clotting activities of Mucor pusillus protease were also more sensitive than rennin to added calcium ions in milk samples maintained at pH values of …

Manufacture Of Monterey Cheese From Preacidified Milk, Faisal O. Mohamed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Whole milk acidified to pH 5.3 with hydrochloric acid was used for the manufacture of Monterey cheese. The milk was inoculated with one and one-half percent lactic starter and set with 12.5 ml rennet per 1000 pounds of milk. Normal washing treatments resulted in cheese with moisture in excess of 44 percent. Moisture content was brought below 44 percent by using wash water at a temperature such that the water-curd-whey mixture was 35 C. The pH of cheese made by preacidification was all between 5.21 and 5.09. No acid defects were encountered. Preacidification eliminated chance of spoilage or losses caused …

Effects Of X-Ray Induced Achlorhdria On The Utilization Of Dietary Calcium And Iron From Different Salts By Rats, Reid Scott Holbrook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dietary calcium has been classified as one of the minerals frequently limiting in the American diet (FAO, 1962) . Bone demineralization has been observed as a result of calcium deficient diets (Salomon et al., 1972), partial gastrectomies (Eddy, 1971) and inadequate hormonal balance (Albright et al., 1948). Although bone demineralization, or osteoporosis, has been attributed to many factors, the interrelationship of gastric acidity and the utilization of dietary calcium may be a key to the etiology of osteoporosis.

Eighty weanling male albino rats were divided into eight groups. All animals had their stomachs exposed through a mid-line incision. Control rats …

Biochemical And Physiological Studies On Phytotoxicity Of Selected Pesticides And Allergens During Seed Germination Of Some Food Crops, R. R. Dalvi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Germination of mung bean, Phaseolus mungo L. , and wheat, Triticum aestivum L., seeds was used for bioassay to demonstrate the toxic effects of selected pesticides--menazon, disulfoton, and GS-14254-- and allergens-- alantolactone and usnic acid. The ability of gibberellic acid to counteract the toxic effects of these chemicals on germination and seedling growth was studied. Chemical composition of the treated and untreated seeds was made with special attention to starch and protein degradation. Effect of these toxicants on the synthesis of amylase, ATPase, and protease enzymes during germination was studied since these enzymes are synthesized de novo during germination. To …

Distribution Of Milk Clotting Enzymes Between Curd And Whey And Their Survival During Cheddar Cheese Manufacture, David G. Holmes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A linear diffusion test in sedimentation tubes filled with caseinagar gel successfully measured milk clotting enzymes at concentrations of 10^-4 to 1 X 10^-l rennin units/ml with 95% accuracy. Diffusion rates were unaffected by diluting enzyme samples with whey, 3% NaCl, and water, The distribution of rennet, porcine pepsin, mucor pusillus var Lindt (MP) protease, and rennet-pepsin mixtures between curd and whey was determined on milk coagulated at pH 5.2, 6.0, 6.4, and 6.6. The procedure accounted for 100 + 7% of the added enzymes. The distribution of rennet was pH dependent with 31% and 72% in curd …

Procedure For Measuring Residual Endothia Parasitica Protease In Curd And Whey From Freshly Coagulated Milk, Raman B. Patel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Test procedures were developed for measuring the residual milk clotting activity of a protease produced by Endothia parasitica in curd and whey separated from freshly coagulated milk. A substrate was prepared by reconstituting 6 g low heat nonfat dry milk in 500 ml buffer containing 50 ml 0.5M cacodylic acid, 50 ml 0.2M CaCl₂ , 30 ml 0.2M triethanolamine and 370 ml double distilled water. The substrate was stored at 2 to 4 C for 20 hours before use. Two milliliters of whey or supernatant from centrifuged curd-water slurries were inoculated into 25 ml of substrate at 30 C …

The Development Of An Index Of Food Quality, Ann Woolley Sorenson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to develop a food quality index that can provide practical information to both consumers and professional people. The Index of Food Quality (IFQ) is a simple computerized tool based on a concept of nutrient density. The IFQ was designed to organize and clarify the present body of food composition data into a form that is directly applicable to dietary problems.

The IFQ provides a method of analyzing food quality based on energy needs. The nutrient contents of foods are compared to essential nutrient standards with calories as a common denominator. In developing the IFQ, …

Production And Quality Evaluation Of Compressed Freeze-Dehydrated Sour Cherries And Their Pies, Chareonsri Srisangnam

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High quality, mature sour cherries (Prunus cerasus L., cultivar Montmorency) were freeze-dehydrated, conditioned with one thousand part per million of sulfur dioxide solution spray followed by dry heat at 200 F for 1 minute and compressed with a pressure of 400 pounds per square inch. The samples were vacuum sealed in cans and stored at 100 F and 70 F for 6 months. The samples were analyzed every 2 months for compression characteristics, changes of color, acidity, anthocyanins, and ascorbic acid. Organoleptic evaluations were made for flavor, texture, and appearance of the rehydrated products prepared as pies.

The results …

Nutrition Of Sheep Grazing Foothill Big Game Range In Spring, Kurt J. Kotter

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sheep with esophageal fistulas were used to determine the daily intake, nutritive content and digestibility of forage at three periods and two stocking intensities during the spring of 1972 on a typical foothill range in northern Utah.

Heavy grazing under a season-long regime did not influence the concentrations of dietary chemical components when compared to moderate grazing; however, it did depress the digestibility of cellulose and organic matter. There was a significant decline in the dietary chemical components due to forage maturation. Digestibility of organic matter and cellulose were significantly higher in the early spring as compared to late spring. …

Prescorbutic Vitamin C Deficiency And Escape, Avoidance, And Extinction Behavior In Guinea Pigs (Cavia Porcellus), Susan Goodwin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Few studies in the area of psychodietetics have concentrated upon the relationship between a single dietary nutrient and behavior. However, some vitamins have been shown to be particularly important to central nervous system activity. Among these is Vitamin C (ascorbic acid).

Two experiments were done to determine the effects of ascorbic acid deficient diets on a learning task in which guinea pigs were subjects. Learning was defined as acquisition and extinction of shock-escape and shock-avoidance behavior.

In Experiment I, twelve adult guinea pigs were fed diets containing two different deficient amounts of ascorbic acid for six weeks. They were then …

Effects Of Magnesium Deficiency On Discriminative Avoidance Behavior Of Rats, Mahlon B. Dalley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to develop and test a group of predictors that could be used by fundraisers to determine potential corporate support for environmental and recreational programs. Local surveys were conducted to determine environmental and recreational needs for Cache Valley and twenty interviews were held with local corporate managers. The information gathered in these interviews and the literature review provided a list of approximately 20 variables which were narrowed down to 10 to predict both the potential for giving and the level of giving.

A proposal for a youth training project was developed and local Forest Service …

Economic Feasibility Of Controlling Big Sagebrush (Artemisia Tridentata) On State And Private Rangelands In Utah, Stan D. Hinckley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Spraying with the chemical herbicide 2,4-D is the most widely used method of controlling big sagebrush. Spraying is very effective in increasing forage production and generally is not poisonous to either man or animals.

Two procedures can be used to calculate the internal rate of return to big sagebrush control: standard and modified discounting. Standard discounting assumes all nonuse costs are incurred in the year of treatment, and the annual income stream is constant throughout the effective life of treatment. Modified discounting correctly assumes the nonuse cost is incurred in the period of deferment, and the income stream does not …

Determination Of Crop Production Functions As Related To Soil Moisture And Nitrogen, James W. Bauder

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soil moisture and nitrogen are often the primary controlling factors of crop production. Production functions are valuable in describing crop responses to such controlling factors. Such functions are also needed for determining the economic reliability of crop production.

Soil moisture and nitrogen fertilizer were maintained at various levels to determine the response of field corn to these controlling factors. A conventional split plot design, a continuous function experimental design, and a confined barrel plot design were used to obtain data for determining production functions.

The complete factorial, conventional split plot data was successfully used to generate reliable production functions in …

The Cost Of A Home Economics Food Program In The State Of Utah, Joyce Leavitt Winterton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purposes of this paper are to provide a guid.e line for determining the budget for a Consumer and Homemaking foods program in the secondary schools of Utah, and to suggest some food buying procedures. In order to achieve these purposes, questionnaires were sent to the 167 ,junior and senior high schools in the state. Of the questionnaires returned, 99 were complete enough to be utilized for the study; 48 were from junior high schools and 51 from senior high schools. For analysis the schools were grouped according to whether they were a junior or senior high school and then …

A Study Concerning Sources Of Information And Knowledge About Fluoride In Logan, Milford, And Helper, Utah, Marilyn Lorraine Geddes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A considerable amount of research has been conducted concerning the characteristics of people who are in favor of fluoridation. However, there is little information available as to what the electorate really knows about fluoride when they are forced to vote on this scientific issue.

Thus, the objectives of this study were to determine the general public's level of knowledge about fluoride, to discover what sources of information have been the greatest influence on their opinion and knowledge about fluoride, and to estimate the level of participation of dentists, general practitioners, pediatricians, and gynecologists in the education of Utahns about the …

Relationship Between Opinions Toward Fluoridation And Socioeconomic Status Of Salt Lake City Residents, Craig D. Kunz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of the study was to determine if a relationship exists among opinions toward fluoridation of public water supplies, income, and level of education of the people of Salt Lake City, Utah. There were also two secondary concerns. One was to determine if a relationship exists between opinions toward fluoridation and other controversial social issues. The issues identified for investigations were: (1) the Supreme Court decision on abortion, (2) the Equal Rights Amendment, and (3) capital punishment. The second was to determine the factors on which opinions regarding fluoridation were based.

The results of the data that was collected …

Utah Science Vol. 35 No. 1, March 1974

Utah Science

Shrubs in Utah and the Intermountain Region Arthur H. Holmgren 3

Shrublands of Utah Neil E. West 4

The Spectacular Canyon Maple Philip A. Barker 7

Some Uncommon People and Some Uncommon Plants Walter P. Cottam 10

Syrup Production from Canyon Maple Philip A. Barker and D. K. Salunkhe 13

Rapid Evolution in Western Shrubs Howard C. Stutz 16

Shrub Seed Production - a Potential Enterprise Gordon A. Van Epps 21

Kochia Prostrata: a Shrub for Western Ranges? Wesley Keller and A. T. Bleak 24

Oldman Wormwood to Stabilize Disturbed Areas A. Perry Plummer 26

Shrubs for Restoration of Depleted …

The Consumption, Utilization And Modification Of Nutritional Resources By The Jackrabbit (Lepus Californicus) In The Mohave Desert, V. H. Shoemaker, K. A. Nagy, W. R. Costa

Memorandum

No abstract provided.

Classification And Quantification Of Invertebrate Activity And The Role Of Invertebrates In Nitrogen Processing In Plants, Litter And Soil In Curlew Valley, P. R. Sferra

Memorandum

No abstract provided.

Annual Nutrient And Energy Intake Of The Desert Cottontail, Sylvilagus Auduboni, Under Natural Conditions, Frank J. Turkowski, Hudson G. Reynolds

Memorandum

No abstract provided.