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South Dakota State University 1970 Summer Session Bulletin, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

Effect Of Days Open On Lactation Production, Roger L. Ripley

Electronic Theses and Dissertations

Accurate evaluation of dairy production records is essential if dairymen are to establish and maintain profitable dairy herds and efficient culling programs. Improper record evaluation may result in. saving breeding stock that otherwise might be eliminated. Many factors may influence the validity of individual production records. Adjustment factors, currently in use by the United States Department of Agriculture (USDA) for sire and cow evaluations, are generally accepted as removing the majority of these influences. Consequently, these factors are invaluable to practical dairymen. The adjustment factors, suggested by McDaniel, et al. (24) in 1967, take into account the geographical location, season …

Ochratoxin In Poultry Feeds : Toxic Effects On Hens, Harlal Choudhury

Electronic Theses and Dissertations

Ochratoxin is a toxin produced by fungus Aspergillus ochraceus Wilh. This is one of the poisonous metabolites, like aflatoxin, which when ingested by livestock, poultry, and human beings could produce toxigenic effects—so-called mycotoxicoses. The fungus A. ochraceus is widely distributed in nature and often found in soil and vegetation. Scientists, while searching for causative agents of certain diseases not of bacterial, viral, or nutritional origin, conducted a series of experiments a few decades ago using different species of fungi grown on food and feedstuffs. Toxic effects concurrent with antimicrobial activity of certain species of molds created problems in separating one …

Supplementation With Vitamins A And D Of Beef Cattle Finishing Rations Containing Various Levels Of Carotene From Corn Silage And Corn Grain, Harold Richard King

Electronic Theses and Dissertations

The purpose of this experiment was to determine the need for vitamin A and vitamin D supplements with rations composed of various levels or corn silage and corn grain when fed to cattle. Early investigations with vitamin D demonstrated that the reduced intensity or sunlight during the winter months resulted in decreased cutaneous formation of vitamin D and that dark- skinned animals synthesized less vitamin D than light skinned animals under given conditions of light intensity. Thus this experiment was conducted with Angus and Angus x Hereford crossbred steers and, to the extent possible under seasonal conditions considered to be …

Relationships Of Homologous Erythropoietin, L-Ascorbic Acid, And Iron Dextran To The Hemogram Of Newborn And Doe Rabbits, Lloud Edward Lippert

Electronic Theses and Dissertations

The neonatal-anemia syndrome, an anemia of newborn animals, in a commonly observed physiological phenomenon in swine, humans and rats. The severity of the anemia is subject to unpredictable individual variation, but may be modified by the nutrition of the dam. Alterations in swine neonatal hemogram values begin 3-5 days postpartum and include decreases in packed cell volume and hemoglobin concentration. Vigorous and healthy appearing newborn become weak and particularly subject to infective agents and stresses, which may terminate in death. A slow return to postpartum hemogram values is observed if the newborn animal survives. The economic considerations of newborn mortality …

The Effects Of Selected Training Intensities And Durations On Blood Cholesterol And Selected Anthropometric Measurements, Alan Ingmar Molde

Electronic Theses and Dissertations

Physical inactivity, due to automation and our busy mode of living, has contributed to a health problem in modern society. When obesity, high-fat diets, cigarette smoking, and stress are added, the end-product is an alarming increase in incidence of diseases of the heart and lungs. Admittedly, such diseases are multifactorial in cause, but inactivity appears to assume an increasingly important role. Exercise in relation to preventative and rehabilitative medicine, however, is a new and rapid changing field of research. Consequently, the knowledge concerning physical conditioning and training programs is limited and inadequate. Therefore, educators in health and physical education are …

Factors Influencing Asexual Spore Formation By Ceratocystis Ulmi, Richard J. Roster

Electronic Theses and Dissertations

Stock cultures of a pure strain of C. ulmi were obtained from the Plant Science Department at South Dakota State University. The inoculum was maintained on Potato Dextrose Agar (PDA) in petri dishes. On this medium, the fungus produced a grayish white rather sparse and appressed mycelium. Conidia were produced in heads on branched conidiophores. Quite often some sectoring was observed on PDA. Cultures producing coremia, obtained on 2% American elm shavings (on dry weight basis) plus bacteriological agar (8 g/1), were also used as an inoculum source. As is shown, this medium produced coremia and very little vegetative mycelium. …

Optimum Design Of Transversely Loaded Concrete Beam, Sheng Lung Tsai

Electronic Theses and Dissertations

American agriculure has advanced considerably in recent years. These unprecedented advances result primarily from recent developments which have occurred in agriculture science and technology. Recent trends have been toward the feeding of more animals on fewer feedlots. The concentrating of large numbers of animals has undoubtedly increased the efficiency of animal producion in certain parts of the country. But the confinement of large numbers of animals has undoubtedly increased the efficiency of animal production in certain parts of the country. Because waste management has become a major operational problem, improved methods of handling, treatment, and disposal of animal wastes must …

The Effect Of Harvesting And Storage Methods On Chemical Composition And In Vitro Digestibility Of First Cutting Alfalfa Hay, Perry A. Fales

Electronic Theses and Dissertations

The importance of alfalfa hay in dairy cattle feeding is generally acknowledged. The reasons why alfalfa is used so extensively in dairy cattle rations are due to its high protein content, high acceptability by cattle, its wide ·area of adaptation, and high yields. A popular way of handling the forage is to put it up as hay. South Dakota produced 3,261,000 tons of alfalfa hay in 1968. There were 73 million tons of alfalfa hay produced in the United States during 1968 (10) making it a crop of major importance. Farming practices have changed considerably the last ten years. Among …

A Comparison Of Management Systems For The Ewe Flock, Roger Allen Lind

Electronic Theses and Dissertations

Generally sheep production relates to a grassland type of agriculture. But in many areas increasing acreages are used for cultivated crops, and less land is available for pasture due to new or improved cultural practices, increased fertilization, new or improved plant species and, in some areas, irrigation. Since the availability of land for use as pasture will most likely decrease in the future due to the increasing population and food demands of the world, confinement rearing of sheep may become a necessity. Mechanization in the sheep industry has been slow, while the use of confinement or semi-confinement management systems, laborsaving …

The Effect Of Fertilization Of A Native Lowland Pasture On Forage Intake And Nutritional Value Of Diet Selected By Grazing Sheep, John Joseph Doyle

Electronic Theses and Dissertations

Knowledge of the forage intake and nutritional value of the diet selected by grazing animals is basic to good range management. The amount and kind of forage chosen may vary with the kind of animal, its previous history, age, size, health, and physiological state as well as with the range site, range condition, season of the year, current weather, and management practices such as intensity of grazing, grazing systems, fertilization, and supplementation With protein, phosphorus, or other nutrients. A knowledge of the various factors that affect dietary intake and selection would permit the range manager to more wisely plan the …

Methods For Rapid Identification And Enumeration Of Streptococcus Bovis From Water, Lawrence Robert Koupal

Electronic Theses and Dissertations

Because water can be a carrier of enteric pathogenic microorganisms, water pollution from a fecal source is a serious problem to a community obtaining water from streams and rivers. Adequate methods for detection of the enteric pathogens are lacking, consequently, much attention has been given to the detection of other microorganisms as indicators of fecal pollution. The microorganisms called the fecal streptococci are those streptococci which are commonly found in the intestinal tract of man and animals. The fecal streptococci have been divided into two basic groups within the Lancefield Group D streptococci. These two groups are the enterococcus group …

The Identification Of Changing Sex Roles Within A Family Unit As Perceived By First Graders, Janelle Fridley Jones

Electronic Theses and Dissertations

Family life education includes the total education for living in families. The main emphasis of all home economics or homemaking education is life as it is lived within the home and family. Some aspects of home economics are usually included in the curriculum at all age levels from early childhood through secondary education. Family life in America has changed over the years. Such factors as family mobility, a greater amount of leisure time, an increase in early marriages, and more mothers employed outside the home indicate the need for education in family living. Moreover, currently fewer youngsters learn about homemaking …

The Influence Of An Unusually High Water Table On Ground Water Quality At A Refuse Disposal Site, Charles Strock Johnson

Electronic Theses and Dissertations

At a 1961 symposium on ground water contamination and later in 1963 at a national conference on solid wastes, concern was shown for the protection of one of our most valuable resources - ground water. It was felt at both conferences that a definite need existed for more research in areas pertaining to the nature and mobility of chemical and biological contaminants leached from refuse disposal areas. Finally, in 1965, because of the interest shown in these problems, Congress passed the Solid Waste Disposal Act which created the Office of Solid Wastes within the Public Health Service. Included in on …

The Symbiotic Nitrogen-Fixing Endophyte Of Shepherdia Argentea, Ronald J. Stangeland

Electronic Theses and Dissertations

The purpose of this study was to isolate the symbiotic endophyte from S. argentea nodules in pure culture and to study the endophyte morphology in situ. In addition to permitting identification of the endophyte, it could be more closely studied for its role in and benefit from the symbiosis. The morphological study in situ would aid in selecting nodule isolates to test for nodule forming ability. The morphological study, therefore, would also aid in identifying the endophyte.

South Dakota 4-H Members' And Leaders' Use Of Two Types Of 4-H Manuals, Barbara Kaye Froke

Electronic Theses and Dissertations

The Smith-Lever Act of 1914 established the Federal Cooperative Extension Service. The United States Department of Agriculture, the state university and the people in the community cooperatively support the extension activity known as 4-H club work. County extension agents administer the youth program within 1 each county. The 4-H member participates in informal, self-help projects within a group or club atmosphere. Club work supplements school and home activities. Volunteer community adults, aided by members' parents as well as county and state extension staffs, serve as leaders of the 4-H clubs. The early history of 4-H club work in the United …

Three Methods Of Cryotherapy And Their Effects Upon The Recovery Process, Byron Edward Foreman

Electronic Theses and Dissertations

Significance of the Study Athletic coaches and trainers have been experimenting with the · use of cold-water applications as an effective method of decreasing the effects of fatigue and improving the recovery of an athlete after strenuous activity. The majority of modern day athletic sports demands that an athlete be able to perform effectively and efficiently in successive bouts of strenuous activity which are interspersed with rest periods. Such activities could be in the running of two or more races in track or in basketball, wrestling, and tennis tournament play. Should a method of rapid recovery from strenuous exercise be …

Estrous Synchonization, Crossbreeding And Antibiotic Feeding For Improved Ewe And Lamb Performance, Leon F. Bush, Frank Whetzal

South Dakota Sheep Field Day Research Reports, 1970

Increased productivity and more efficient management of the ewe flock will enable the sheep industry to better compete with other livestock operations. Improved lambing percentage, decreased mortality of lambs from birth to weaning and a more uniform lamb crop will assure a greater return on ewe investment. Controlled breeding would achieve a shortened lambing period and a more uniform lamb crop. The better management necessary for a shortened, more rapid lambing may result in more lambs saved and marketed. More vigorous lambs and a lower death loss may be expected from crossbreeding and the use of antibiotics in the ewe …

Light And Color Responses Of Apterous Cereal Aphids, Eugene Leslie Miller

Electronic Theses and Dissertations

The four species of cereal aphids used in this study were the English grain aphid, Macrosiphum avenae (Fab.), the oat bird-cherry aphid, Rhopalosiphum padi, the greenbug, Schizaphis graminum (Rondani), and the corn leaf aphid, Rhopalosiphum maidis (Fitch). Aphid colonies were maintained on barley CI 666 in the greenhouse. Only active adult apterae from the stock colonies were counted into the cages. All tests were run in Percival or Sherer controlled environment chambers operating from 2O°C to 27°C, and with a photoperiod of 16 hours of light (3,000 Ft-c supplied by fluorescent and incandescent bulbs). The complex synthetic diet used in …

Effect Of Restricted Weight Gain And/Or Dichlorvos On Reproductive Performance Of Gravid Gilts, R.H. Anderson, R.C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1969

In recent years much of the interest in nutrition of the gravid sow has been centered around restricting feed intake regardless of the weight gain of the sow. It has now become a common practice to restrict intake so that weight gain during gestation is limited to a maximum of 75 to 100 pounds. More recently, there has been some interest in the feeding of 2, 2 – dichlorovinyl dimethyl phosphate (dichlorvos) near the end of gestation to attempt to increase the number of live pigs born and growth rate following birth.

High-Lysine Corn In Growing Pig Rations, Ricahrd C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1969

In 1935 workers at the Connecticut Agricultural Experiment Station discovered a mutant gene in corn called Opaque-2. Yet high-lysine corn, the product of this discovery, was not identified until 1963 at Purdue University. Since that time several experiments have been conducted on the value of the product in both human and animal nutrition. Also, considerable research is under way on the production aspects of high-lysine corn. Regular corn is deficient in two of the essential amino acids needed by swine--lysine and tryptophan. High-lysine corn is also higher in tryptophan than normal corn. In certain other amino acids high-lysine corn may …

Thirteenth Annual Swine Field Day 1968 Complete Report, Department Of Animal Science

South Dakota Swine Field Day Proceedings and Research Reports, 1969

This is complete proceedings of the thirteenth annual South Dakota Swine Field Day held on November 13, 1969 at South Dakota State University.

Sdsu Collegian, October 8, 1969, Student Association Of South Dakota State University

The Collegian Archive : 1960 to 1969

Vol. 78, No. 3

South Dakota Farm And Home Research (Fall 1969), Agricultural Experiment Station, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

This issue includes the 82nd Annual Experiment Station Annual Report.

Contents Animal Health [p] 4
Community and Public Affairs [p] 6
Crop and Soils [p] 6
Engineering [p] 14
Fertilizers [p] 16
Home and Consumer [p] 16
Garden and Orchard [p] 18
Insects [p] 20
Institutes [p] 22
Irrigation, Water Resources [p] 24
Livestock [p] 27
Management, Marketing, Business [p] 31
Plant diseases [p] 32
Pollution [p] 35
Range [p] 36
Sociology [p] 37
Wildlife and Fisheries [p] 37
Special, Service Type Activities [p] 40
List of Projects [p] 42
List of Publications [p] 45
Staff [p] 52
Financial Statement …

South Dakota State University 1969-1970 Graduate School Bulletin, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

Nutrition Of Growing Pullets, C. W. Carlson

South Dakota Poultry Field Day Proceedings and Research Reports, 1969

Probably less is known about the nutrient requirements of growing pullets than of any other stage in the life of the chicken. Until recently, she has just been fed what we thought were her needs and she generally did quite well on quite a wide variety of regimes. This report covers a summary of the little we know.

First Annual Poultry Field Day, Animal Science Department

South Dakota Poultry Field Day Proceedings and Research Reports, 1969

These are the complete proceedings of the first annual Poultry Field Day held on September 19th, 1969 at South Dakota State University.

Housing The Laying Hen, Phillip E. Plumart

South Dakota Poultry Field Day Proceedings and Research Reports, 1969

This document contains information and suggestions regarding the effective housing of poultry.

What's Happening : 1969-1970 Reading List, Mercedes B. Mackay

SDSU Extension Circulars

This publication includes reading suggestions for adults based on topic as well as general titles for children and young adults. South Dakota State Library services and book borrowing rules and regulations are summarized.

Soil Fertility Experiments 1967, South Dakota Agricultural Experiment Station

Agricultural Experiment Station Agronomy Pamphlets (1944-1969)

This pamphlet is a continuation of the Agronomy Department series which summarizes outlying soil fertility experiments in South Dakota. Experiments are conducted in areas of the state where soil fertility problems arise or where additional information is needed for calibration and correlation of soil tests. Experimental sites were selected with emphasis on soil uniformity within the plot area. Sites were selected so the major soil types were represented. Special acknowledgement goes to the farmer cooperators for use of their land for the experimental plot sites, for preparing the seedbed, and for collecting data such as rainfall.