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South Dakota State University

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South Dakota State University 1973 Summer Session Bulletin, South Dakota State University Jan 1973

South Dakota State University 1973 Summer Session Bulletin, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

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Chemical Survey Of Selected South Dakota Lake Sediments, Alan Ross Swanson Jan 1973

Chemical Survey Of Selected South Dakota Lake Sediments, Alan Ross Swanson

Electronic Theses and Dissertations

Available phosphorus, organic carbon, and organic nitrogen were measured in bottom sediments of 16 lakes and ponds in northeast South Dakota. These lakes were glaciated, relatively shallow, and productive. Ranges of the surface sediments were: available phosphorus, 2 to 42 ppm; organic carbon, 0.94 to 5.34 percent; and organic nitrogen, 0.29 to 0.79 percent. Ranges of subsurface sediments were: available phosphorus, 2 to 39 ppm; organic carbon, 0.54 to 6.06 percent; organic nitrogen, 0.19 to 0.88 percent. Concentrations in most lakes varied little from top to bottom. Hard-bottomed lakes generally decreased in nutrient concentrations from sediment surface of subsurface. Lower …

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Nutrient Sources And Transport In The Central Region Of The Big Sioux River, South Dakota, Marvin E. Hora Jan 1973

Nutrient Sources And Transport In The Central Region Of The Big Sioux River, South Dakota, Marvin E. Hora

Electronic Theses and Dissertations

Concentration and flow of total phosphate (TP), total organic nitrogen (TON), and total organic carbon (TOC) were measured from November 9, 1971 to November 8, 1972 on the Big Sioux River, Six Mile-North Deer Creek, and Drainage M. The Big Sioux River transported 418,640 x 10 3 m3 of water, 776,880 kg TP, 599,590 kg TON, and 5,419,580 kg TOC during the study-year. Six Mile Creek transported 23,900 x 10 3 m 3 of water, 52,040 kg TP, 43,580 kg TON, and 327,860 kg of TOC. The transport of water and nutrients in Six Mile Creek per square kilometer of …

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The Primary Structure Of Nifungin, Marvin Lee Withrow Jan 1973

The Primary Structure Of Nifungin, Marvin Lee Withrow

Electronic Theses and Dissertations

The primary structure of the antifungal peptide nifungin was studied. Amino acid analysis of nifungin before and after performic acid oxidation revealed 51 amino acids and the presence of an unidentified ninhydrin positive material. The unidentified material constituted approximately ten per cent of nifungin by weight. It contains nitrogen but, as reported by others (2), did not contain phosphate or reducing sugars. It was not hydrolyzed into smaller compounds by strong mineral acids. Carboxyl terminal analysis was conducted utilizing carboxy-peptidase A and B on both the oxidized and unoxidized nifungin. Tyrosine appeared to be released most rapidly followed by lysine, …

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Effect Of Breed Of Sire, Level Of Postweaning Nutrition And Type Of Birth (Single Vs. Twin) On Lambing Performance At 12 Months Of Age, A. L. Slyter Jan 1973

Effect Of Breed Of Sire, Level Of Postweaning Nutrition And Type Of Birth (Single Vs. Twin) On Lambing Performance At 12 Months Of Age, A. L. Slyter

South Dakota Sheep Field Day Research Reports, 1973

One of the potential area to increase efficiency of sheep production, and thereby net return, is through an increase in the reproductive efficiency of the ewe. The practice of breeding ewes as lambs and thereby getting an additional lamb crop during a ewe's lifetime offers one possibility to increase the lifetime production of the ewe. Proper growth and development of replacment ewe lambs is necessary if this practice is to become a working reality.
A study was designed and initiated in the fall of 1970 to evaluate the effect of breed of sire, level of pre- and postweaning nutrition, age …

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History Of Extension, Cooperative Extension Service, South Dakota State University, Epsilon Sigma Phi, South Dakota Chapter Jan 1973

History Of Extension, Cooperative Extension Service, South Dakota State University, Epsilon Sigma Phi, South Dakota Chapter

SDSU Extension Publications Archive

The College had been doing a certain amount of Extension work since 1901, 13 years before the Smith-Lever Act was passed. This work consisted mainly of holding farmers' institutes, addressing farmers' meetings and judging at county fairs. During this 13-year period (1901-1914), four different superintendents were employed. Stacy Cochran served for two years. The work was discontinued for two years, and in 1905 it was reestablished under M. F. Greeley. He was succeeded in a short time by A. E. Chamberlain. The last man to hold the position before the work finally merged into Extension work was H. F. Stoner …

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Increasing The Efficiency Of Lamb Production, Hudson A. Glimp Jan 1973

Increasing The Efficiency Of Lamb Production, Hudson A. Glimp

South Dakota Sheep Field Day Research Reports, 1973

Opportunities for increasing lamb production efficiency include increased rate of reproduction, more efficient lamb growth to heavier market weights with a higher lean to fat ratio, improved meat quality, and a more uniform distribution of high quality lamb throughout the year.

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Sdsu Collegian, December 13, 1972, Student Association Of South Dakota State University Dec 1972

Sdsu Collegian, December 13, 1972, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 81, No. 15

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Facts About Organic Farming And Gardening, Cooperative Extension South Dakota State University Dec 1972

Facts About Organic Farming And Gardening, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

The frequently used terms "organic farming" or "organic gardening" have different meanings to different people. Some organic gardeners, for example, US'e sterile soil and furnish plant food in the irrigation water, but they refrain from using chemical herbicides, insecticides, fungicides or other pesticides. They call this "organic gardening," even though they are applying the same "inorganic" plant foods ― nitrogen, phosphorus, potassium ― and any of a dozen other inorganic elements essential for plant growth that are provided by nature. At the same time, they refrain from using pesticides which are "organic" compounds.

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Grass Tetany In Cattle, Cooperative Extension South Dakota State University Dec 1972

Grass Tetany In Cattle, Cooperative Extension South Dakota State University

SDSU Extension Fact Sheets

Grass tetany, recognized as a complicated magnesium deficiency, usually makes its appearance when cows are changed from the normal winter feeds to a new growth of grass in the early spring. In the Northern Great Plains, the critical period generally is late April and early May. A similar condition called "wheat pasture poisoning" occurs in cattle grazing winter wheat, particularly in the southern portion of the Great Plains. The extent to which these two diseases share common causes has not been determined.

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Southeast South Dakota Experiment Farm Annual Progress Report, 1972, Agricultural Experiment Station Dec 1972

Southeast South Dakota Experiment Farm Annual Progress Report, 1972, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

Research Manager’s Report: The 1972 year found the Experiment Farm and Research and Extension Center with the usual variety of programs and activities. Several personnel changes were made with Jake Fredrikson, Superintendent moving to Brookings to take a position in the Veterinary Science Department. Burton Lawrensen was made Agronomist and continues to work with crops research. Vacancies filled in classified personnel staff have added new talents to the farm work crew. A number of research studies were initiated this year. New projects in Plant Science included the following titles: Potash on Grain Sorghum, Chisel Plow Experiment, No-till Planting of Corn …

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Sixteenth Annual Swine Day, Animal Science Department Nov 1972

Sixteenth Annual Swine Day, Animal Science Department

South Dakota Swine Field Day Proceedings and Research Reports, 1972

These are the complete proceedings of the sixteenth annual South Dakota Swine Field Day held on November 16, 1972 at South Dakota State University.

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Oats As A Ration For Gestating Sows And Gilts, Richard C. Wahlstrom, G. W. Libal, Lawrence R. Dunn Nov 1972

Oats As A Ration For Gestating Sows And Gilts, Richard C. Wahlstrom, G. W. Libal, Lawrence R. Dunn

South Dakota Swine Field Day Proceedings and Research Reports, 1972

Research conducted the past several years on the nutritional needs of gilts and sows during gestation has resulted in a change from free-choice to limited feeding of brood sows. Limiting feed intake also reduces the total intake of other nutrients. Recent research conducted at Cornell, Illinois and Minnesota using as the only source of protein for gestating gilts has shown little effect on littler size or pig weights, but pigs from sows receiving all of their protein from corn grained less from birth to 21 days.

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Effect Of Flavomycin On Performance Of Growing-Finishing Pigs, Richard C. Wahlstrom, G. W. Libal Nov 1972

Effect Of Flavomycin On Performance Of Growing-Finishing Pigs, Richard C. Wahlstrom, G. W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1972

Antibiotics have been used widely in swine rations at low levels to increase rate of gain and improve feed efficiency for the past two decades . The future of antibiotics as feed additives for swine is uncertain following the recent report of the Food and Drug Administration Task Force that recommended antimicrobial agents used in human clinical medicine be prohibited from growth promotion use in animals by December 31, 1973 .

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Sdsu Collegian, November 8, 1972, Student Association Of South Dakota State University Nov 1972

Sdsu Collegian, November 8, 1972, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 81, No. 11

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Cost Of Producing Beef With Different Types And Weights Of Cattle, Danny G. Fox Oct 1972

Cost Of Producing Beef With Different Types And Weights Of Cattle, Danny G. Fox

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1972

Currently, there is much interest in changing the U.S.D.A. grading standards. Some suggest that we completely eliminate the use of them. There are many reasons for this, but the major one is that many feel that the present system does not always correctly identify the most desirable carcasses. Many cattle now come to market at 15 to 18 months of age and are not marbled because of their youthfulness.

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Sixteenth Annual Cattle Feeders Day, Animal Science Department Oct 1972

Sixteenth Annual Cattle Feeders Day, Animal Science Department

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1972

These are the complete proceedings of the sixteenth annual Cattle Feeders Day held on October 27, 1972 at South Dakota State University.

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Effect Of Nutrition On The Carcass Composition And Quality Of Cattle, R. L. Preston Oct 1972

Effect Of Nutrition On The Carcass Composition And Quality Of Cattle, R. L. Preston

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1972

Beef is a highly desirable food, both nutritionally and for the pleasure it gives during its consumption. Protein of high quality is the major nutritional asset of beef, as well as supplying certain minerals and vitamins. As important as this role is, it is not the main reason that beef is the most desired of all meats. Beef is consumed because it provides great satisfaction. What then contributes of this satisfaction?

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South Dakota State University 1972 Graduate School Bulletin, South Dakota State University Oct 1972

South Dakota State University 1972 Graduate School Bulletin, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

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Selenium Content Of Feed And Of Commercially Grown Turkeys, C. W. Carlson, B. J. Bonzer, O. E. Olson Sep 1972

Selenium Content Of Feed And Of Commercially Grown Turkeys, C. W. Carlson, B. J. Bonzer, O. E. Olson

South Dakota Poultry Field Day Proceedings and Research Reports, 1972

As a contribution toward the efforts of the American Feed Manufacturers Association's petition to the Food and Drug Administration to permit selenium additions to animal feeds, two flocks of Large Broad White turkeys in South Dakota were monitored. Each flock v/as observed three times during the growing season and at slaughter. Feed samples were taken periodically throughout the growing period and tissue samples were taken after coding and packaging. A portion of the distal end of the pectoralis minor (breast muscle) and the liver were obtained. Selenium analyses were conducted according to the method of Olson (1969).

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Copper And Protein Levels As Affecting Palatability Of Turkeys, C. W. Carlson, Dorothy Deethardt, E. Guenthner, R. A. Nelson Sep 1972

Copper And Protein Levels As Affecting Palatability Of Turkeys, C. W. Carlson, Dorothy Deethardt, E. Guenthner, R. A. Nelson

South Dakota Poultry Field Day Proceedings and Research Reports, 1972

Turkeys that were produced in the studies with copper and lov7 and normal protein diets (see A.S. Series 71-11) have been evaluated for palatability using a taste panels the Carver press for juiciness and the Lee-Kramer shear press for tenderness. The turkeys were slaughtered, eviscerated and water cooled, carcass yield and skin thickness were observed and the bagged carcasses held in frozen storage prior to cooking. None were held longer than 6 weeks. Broiler-type turkeys were roasted whole and the roaster-type as halves, four at a time, in an 160° C oven to an internal thigh temperature of 85° C.

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Fourth Annual Poultry Field Day, Animal Science Department Sep 1972

Fourth Annual Poultry Field Day, Animal Science Department

South Dakota Poultry Field Day Proceedings and Research Reports, 1972

These are the complete proceedings of the fourth annual Poultry Field Day held on September 28th, 1972 at South Dakota State University.

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Studies On The Stimulation Of Poultry Growth By Soybeans Molded With Species Of Aspergillus, C. C. Chah, C. W. Carlson, G. Semeniuk, I. S. Palmer Sep 1972

Studies On The Stimulation Of Poultry Growth By Soybeans Molded With Species Of Aspergillus, C. C. Chah, C. W. Carlson, G. Semeniuk, I. S. Palmer

South Dakota Poultry Field Day Proceedings and Research Reports, 1972

Many workers have reported that cultures of molds grown on feedstuffs produce poisonous metabolites, "mycotoxins", which depress growth of farm animals and may cause high mortality.

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Sdsu Collegian, September 6, 1972, Student Association Of South Dakota State University Sep 1972

Sdsu Collegian, September 6, 1972, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 81, No. 2

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Sdsu Collegian, August 30, 1972, Student Association Of South Dakota State University Aug 1972

Sdsu Collegian, August 30, 1972, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 81, No. 1

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South Dakota State University Eighty-Sixth Annual Commencement, May 28, 1972, Brookings, South Dakota, South Dakota State University May 1972

South Dakota State University Eighty-Sixth Annual Commencement, May 28, 1972, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the individuals listed in the program do not officially confirm meeting the graduation requirements. Honorary marshals for the 86th Annual Commencement are David B. Doner, Director Emeritus of Student Services, and Floyd J. LeBlanc, Dean Emeritus of Pharmacy. The commencement address will be delivered by Brig. Gen. Daniel James, Jr., Deputy Assistance Secretary of Defense. President Hilton M. Briggs will confer degrees and present diplomas.

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Sdsu Collegian, May 9, 1972, Student Assocation Of South Dakota State University May 1972

Sdsu Collegian, May 9, 1972, Student Assocation Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 80, No. 41

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Detection And Assay Of Viruses Using Latex Particles, Thomas Charles Sorensen May 1972

Detection And Assay Of Viruses Using Latex Particles, Thomas Charles Sorensen

Electronic Theses and Dissertations

When hemagglutination is caused by the virus particle itself, a particle joins two red blood cells together by forming a bridge between them. If sufficient hemagglutination particles are present, the red cells form clusters of larger aggregates which fall to the bottom of the test tube or well. It is this sort of biophysical phenomenon which is being investigated in this study. Rather than using red blood cells as the adsorbent, to the surface of which the virus adsorbs, some solid adsorbents have been utilized to substitute for the red cells in a variety of experimental manipulations. Bentonite has been …

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Germination And Vegetative Propagation Of Native Prairie Forbs, James T. Sorensen May 1972

Germination And Vegetative Propagation Of Native Prairie Forbs, James T. Sorensen

Electronic Theses and Dissertations

In the late 1960's and early 1970's there arose an increased awareness of the ecological relationships of nature to man. Although this relationship has been known for some time and numerous books have been written on the subject, public awareness has been slow in coming. But for some unknown reason man has taken a turn to nature. He is becoming more involved with conservation of nature and appreciative of its aesthetic beauty. With this new awareness there has come a new era of camping, hiking, and riding, to mention only a few activities which man needs or wants to enable …

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Heat And Moisture Production In A Closed Environment Beef Building During Warm Weather, Martin L. Hellickson Apr 1972

Heat And Moisture Production In A Closed Environment Beef Building During Warm Weather, Martin L. Hellickson

Electronic Theses and Dissertations

The need for improved production facilities is emphasized by the fact that beef consumption is at record levels in the United States with continued growth predicted. The annual per capita consumption of beef and veal in the United States was nearly 73 pounds in 1949 and increased 56 per cent to approximately 114 pounds per person by 1969. The demand for beef is also increasing in developed areas throughout the rest of the world. Increases in demands for beef have stimulated the beef industry to make significant gains in production. The production of beef in the United States has increased …

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