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Flumethasone Induction Of Parturition In The Ewe, Donald H. Rommereim Jan 1978

Flumethasone Induction Of Parturition In The Ewe, Donald H. Rommereim

Electronic Theses and Dissertations

The idea of controlling the time of parturition in domestic mammals has arisen in the last 15 years from the development of techniques of estrous synchronization and from studies achieved on the mechanism of birth. Controlling the time of parturition is a management technique by which a producer might reduce livestock losses at birth and/or cut production costs. Birth for the new-born, or parturition for the mother is a critical time. Controlling the time of parturition allows the producer to exercise a constrained supervision at this critical time, and therefore limit possible losses. Being present at birth allows the producer: …

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Cell Surface Changes During Early Mouse Development, James Thomas Rector Jan 1978

Cell Surface Changes During Early Mouse Development, James Thomas Rector

Electronic Theses and Dissertations

Objectives of this thesis were to further characterize cell surface properties of preimplantation mouse embryos. A study was conducted to determine latent effects of varying pulses of CB on early postimplantation mouse embryos by comparing their abilities to hatch, to attach and to sustain growth and differentiation of ICM and trophoblast tissue. CB treatment was begun at the 8-cell stage. Objectives of the studies involving Con A were to determine (1 ) whether agglutinability with Con A changes during compaction of 8-cell embryos, (2) if changes in numbers of binding sites parallel changes in agglutinability during preimplantation development, (3) whether …

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Bearing Capacity Of Surface Footings On A Sand Layer Resting On A Rigid Rough Base, Tom Walter Pfeifle Jan 1978

Bearing Capacity Of Surface Footings On A Sand Layer Resting On A Rigid Rough Base, Tom Walter Pfeifle

Electronic Theses and Dissertations

The purpose of this study is to present the results of some recent laboratory model testing on the ultimate vertical load carrying capacity of rough, rectangular, surface footings which were placed on granular soil. A rigid base was located at limited depths. It is expected that these results will lend to a better quantitative understanding of the problem.

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Pregnancy Diagnosis In The Ewe, Michael J. Trapp Jan 1978

Pregnancy Diagnosis In The Ewe, Michael J. Trapp

Electronic Theses and Dissertations

The ability to diagnose pregnancy accurately, rapidly and economically before the last six weeks of gestation in the ewe could be of real value as a sheep management tool. An efficient non-surgical pregnancy test could enable the producer to reduce feed costs, increase percent lamb crop and select for fertility. It is important to the health of the ewe and to the survival of the lamb that highly productive animals should be adequately fed. About 75% of the fetus' growth occurs during the last trimester of pregnancy. Therefore undernutrition of the ewe during this part of pregnancy leads to the …

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Effect Of Heat Treatment On Protein Quality And Utilization Of Soybean And Sunflower Meals By Dairy Cattle, Mohammad Ahrar Jan 1978

Effect Of Heat Treatment On Protein Quality And Utilization Of Soybean And Sunflower Meals By Dairy Cattle, Mohammad Ahrar

Electronic Theses and Dissertations

Effect of heat treatment on soybean and sunflower meal proteins were studied using in vitro and in vivo techniques. In experiment I, soybean meal (SBM) and sunflower meal (SFM) were subjected to steam heating about 120 C for 25 to 30 seconds using a commercial cooker extruder. The heat treatment was designed to reduce solubility of the SBM and SFM in the rumen, thereby allowing more soybean meal protein and sunflower meal protein to be undigestible in the rumen but still digestible in the lower digestive tract when fed to cattle. Solubilities of protein in SBM and SFM were reduced …

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The Rhetorical Practices Of The Honorable Sigurd Anderson, Paul H. Rohde Jan 1978

The Rhetorical Practices Of The Honorable Sigurd Anderson, Paul H. Rohde

Electronic Theses and Dissertations

The purpose of this study was to determine the rhetorical practices of the honorable Sigurd Anderson in his public addresses from 1951 to 1978 and the relationship between his rhetorical training and his rhetorical practices. More specifically, answers to the following questions have been sought: 1) What was Anderson's rhetorical training and preparation? 2) What rhetorical tenets were advocated in Anderson's training? 3) What inventional procedures did Anderson follow in preparing his addresses? 4) What practices did Anderson follow regarding arrangement in his public addresses? 5) What stylistic practices did Anderson follow in his public addresses? 6) How did Anderson …

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Treatment Capabilities Of A Rapid Infiltration Pilot Unit Treating Stabilization Pond Effluent, Richard G. Seas Jan 1978

Treatment Capabilities Of A Rapid Infiltration Pilot Unit Treating Stabilization Pond Effluent, Richard G. Seas

Electronic Theses and Dissertations

In October, 1972, Congress passed PL 92-500, "Federal Water Pollution Control Act Amendments of 1972 1; which is designed to upgrade the quality of the nation's water. The act requires the formulation of effluent standards that would require use of “best practicable treatment”. The effluent standards are to require use of the "best available" technology by July 1, 1983 (1). PL 92-500 requires the Environmental Protection Agency Administrator to publish information explaining which treatment techniques may be used to meet the requirement of "best practicable treatment". Land application of wastewater has been designated as a viable alternative to traditional treatment …

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An In-Plant Waste Survey Of An Egg-Processing Plant, James R. Schultz Jan 1978

An In-Plant Waste Survey Of An Egg-Processing Plant, James R. Schultz

Electronic Theses and Dissertations

The total number of eggs produced.in the United States has increased from 40 billion in 1940 to approximately 70 billion in 196 7 (1-265). It is expected that the demand for processed eggs will increase from ten percent of the total production in the 1960's to over 30 percent in the 1970's (2-805). The increase in use of processed eggs will undoubtedly result in an increase in production wastes. To estimate the water pollution potential of egg wastes and to provide the information necessary for procurement of waste discharge permits, knowledge of the volume, strength and treatability of egg-processing wastes …

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The Effect Of Anxiety On Shooting Proficiency Among College Women Basketball Players, Betty Kae Smith Jan 1978

The Effect Of Anxiety On Shooting Proficiency Among College Women Basketball Players, Betty Kae Smith

Electronic Theses and Dissertations

The primary purpose of this study was to investigate the relationship between state anxiety measures and shooting proficiency among women basketball players during game conditions and throughout a co11egiate basketball season. A secondary purpose was to determine the relationship between trait anxiety and state anxiety in addition to selected measures of shooting proficiency. Twelve members of the 1977-78 South Dakota State University Wome1's Basketball Team were assessed through the use of the following measures: (1) State Anxiety Inventory; (2) Sport Competition Anxiety Test; (3) pre-game heart rate; (4) game fie]d goal percentages; (5) game free throw percentages; (6) season field …

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Plant Availability Of Aqueous Phosphates Removed By Fly Ash, Paul D. Weeldreyer Jan 1978

Plant Availability Of Aqueous Phosphates Removed By Fly Ash, Paul D. Weeldreyer

Electronic Theses and Dissertations

Recycling non-renewable resources has become increasingly. important as man has continuously expected more and more from his environment. As stated by Spendlove (1976): "Recycling certainly is not new. It appears, in fact, to be one of the most obvious laws of nature, much like the seasons, the tides, and the life and death processes. It is not surprising, therefore, that the greatest motivating force behind present recycling efforts is the worldwide concern for the deteriorating natural environment." This ever-increasing demand for more production has created the need for more stringent pollution controls to maintain an acceptable quality of life. Pollution …

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Communication Between U.S. Army Senior And Junior Officers As A Factor In Separation, Jeffrey H. Wetjen Jan 1978

Communication Between U.S. Army Senior And Junior Officers As A Factor In Separation, Jeffrey H. Wetjen

Electronic Theses and Dissertations

The purpose of this study is to determine the communication relationship between U.S. Army Senior Officers and those Junior Officers who separated from the service voluntarily from 1966 through 1970, as revealed in selected U.S. Army studies.

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Application Analysis Of A Cellular Geographic Information System, Michael Edward Wehde Jan 1978

Application Analysis Of A Cellular Geographic Information System, Michael Edward Wehde

Electronic Theses and Dissertations

AREAS, the Area REsource Analysis System, was developed by the author as an analytical tool for resource data manipulation in a spatial context. The data base and processing software design factors relevant to economical application are reviewed. The investigation seeks to define a procedure for selection and justification of the grid cell size used to quantify the spatial domain. The performance of a cellular information system is measured in terms of mapping and inventory accuracy. These measures of performance are evaluated for various cellularizations of a single map. The interboundary distance distribution is justified as the only unique characterization of …

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Observations On Attachment And Spreading Of Zonaless Tw32/Tw32 (Brachyury Locus) And Control Icr Preimplantation Mouse Embryos, Ker Hwa Tung Jan 1978

Observations On Attachment And Spreading Of Zonaless Tw32/Tw32 (Brachyury Locus) And Control Icr Preimplantation Mouse Embryos, Ker Hwa Tung

Electronic Theses and Dissertations

The objective of the first part of this thesis is to test, in vitro, the adhesiveness of different stages of denuded preimplantation ICR mouse embryos for the substratum. In the second part, experiments are conducted to determine if there are differences in the attachment and spreading potential between tw32 homozygotes and normal embryos. Studies by Spiegelman (1976), Calarco and Brown (1968), Granholm and Johnson (1978), and others indicate that t12, tw32 and other lethal t alleles of the Brachyury or T-complex may affect cell surface properties. Thus, the objectives of this thesis include the acquisition of …

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Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh Jan 1978

Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh

Electronic Theses and Dissertations

A series of three separate experiments were conducted to determine the value of aspen tree (Populus tremuloides Michx.) as a ruminant feed component in growing, finishing and wintering rations. The entire tree, including the branches, leaves and bark, was fed to Hereford steers and commercial bred stock cows. In experiment 1, sixty steers were randomly allotted to six treatments of ten each. The six treatment rations were: 93% alfalfa as control, 12% aspen, 24% aspen, 36% aspen, 48% aspen and 48% aspen (with 4% sodium hydroxide). Soybean meal was included in aspen rations in a ratio of 40% soybean meal …

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The Lake Dakota Plain: An Area Study, Anselem H. Rumpca Jan 1978

The Lake Dakota Plain: An Area Study, Anselem H. Rumpca

Electronic Theses and Dissertations

This thesis is a systematic-area geographical study of an ancient glacial lake bed [sic] called the Lake Dakota Plain. Most of the Lake Dakota Plain is located in the northeastern part of South Dakota with a small area in adjacent North Dakota. The present study will be limited to that portion which lies in South Dakota. This area study is not limited to one criterion such as location, climate, or human occupance [sic]. Rather, it incorporates the sum total of all the criteria included in a systematic-regional study.

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A Study Of Female Participation In The Labor Force In South Dakota From 1950-1970, Mary K. Wagner Jan 1978

A Study Of Female Participation In The Labor Force In South Dakota From 1950-1970, Mary K. Wagner

Electronic Theses and Dissertations

A study of women's labor force participation in South Dakota from 1950 to 1970 was conducted to determine: (1) the changes that occurred in labor force participation by women in South Dakota fror.1 1950 to 1970; (2) the extent to which variations in demographic, socioeconomic and structural variables helped explain observed variations in labor force participation by women; and (3) the extent to which Transition Theory was applicable in explaining changes in labor force participation among women in South Dakota. The county was designated the unit of analysis, and selected demographic, socioeconomic and structural data from the United States Bureau …

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The Transfer Of Resistance To Wheat Streak Mosaic Virus (Wsmv) From Wheatgrass (Agropyron Intermedium (Host.) Beauv.) To Common Wheat (Triticum Aestivum L. Em. Thell.) By Irradiation, Harnek S. Sandhu Jan 1978

The Transfer Of Resistance To Wheat Streak Mosaic Virus (Wsmv) From Wheatgrass (Agropyron Intermedium (Host.) Beauv.) To Common Wheat (Triticum Aestivum L. Em. Thell.) By Irradiation, Harnek S. Sandhu

Electronic Theses and Dissertations

A virus disease, wheat streak mosaic, has been an important, unsolved problem of winter wheat which is a major crop in South Dakota. F1BC3 monosomic alien addition seeds having three doses of Centurk were irradiated with fast neutrons to translocate a segment of the alien chromosome accounting for immunity from wheat streak mosaic virus to a Centurk chromosome. Immune plants from the irradiated seeds were used as male parents onto Centurk and about 2,000 F1BC4 seeds obtained. Cytological examination of pollen mother cells of 151 resistant F1BC4 plants indicated that the …

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The Effect Of Potassium Permanganate On The Removal Of Iron And Manganese From Ground Water, Mohammad Reza Farvardin Jan 1978

The Effect Of Potassium Permanganate On The Removal Of Iron And Manganese From Ground Water, Mohammad Reza Farvardin

Electronic Theses and Dissertations

For the past three years or so, a gradual migration of iron and manganese deposits has been observed in the water mains to the west of the East Water Treatment Plant of Brookings, South Dakota. These deposits have been gradually migrating further westward from the plant (8). Routine analyses of the treated water from the East Plant indicate that the iron and manganese levels are within the USPHS recommended limits (9). Consequently, conclusive evidence that this plant is the source of the problem does not exist. However, the analyses are normally conducted on samples collected shortly before backwashing the filters. …

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Mineralogy And Origin Of The Medicine Earth Sulfates In The Bucatunna Clay, Central Mississippi / By Dan Albert Thompson, Dan Albert Thompson Jan 1978

Mineralogy And Origin Of The Medicine Earth Sulfates In The Bucatunna Clay, Central Mississippi / By Dan Albert Thompson, Dan Albert Thompson

Electronic Theses and Dissertations

No abstract provided.

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Ultrastructure Demonstration Of Uric Acid In The Nephrons Of Thekidney Of Gallus Domesticus, Chester Hamilton Lake Jan 1978

Ultrastructure Demonstration Of Uric Acid In The Nephrons Of Thekidney Of Gallus Domesticus, Chester Hamilton Lake

Electronic Theses and Dissertations

No abstract provided.

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Diversity And Density Of Shelterbelt Bird Communities, Thomas E. Martin Jan 1978

Diversity And Density Of Shelterbelt Bird Communities, Thomas E. Martin

Electronic Theses and Dissertations

The number of bird species and the density of each species were monitored in 69 shelterbelts in eastern South Dakota during spring migration and breeding seasons in 1976 and 1977. A total of 44 different species of birds were found during breeding and 68 species during spring migration. Approximately 60 to 80% of the species in a shelterbelt eat insects as part of all of their diet. Most of these bird species are territorial. Usually only 1-2 pairs of a territorial species will reside in any one shelterbelt. This low density is caused by the limited habitat area that shelterbelts …

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Diet And Nutrition Of The Pronghorn Antelope, Norman C. Messenger Jan 1978

Diet And Nutrition Of The Pronghorn Antelope, Norman C. Messenger

Electronic Theses and Dissertations

Pronghorn antelope (Antilocapra americana) in northwestern South Dakota consumed at least 32 different plants species. Major forage plants were big sagebrush (Artemisia tridentate), silver sage (A. cana), yellow sweet clover (Meliotus officinalis), gold aster (Chrysopsis villosa), and blue grama (Bouteloua gracilis). Cultivated small grain crops were not a major food source of pronghorn. Differences in diet composition, plant groups, plant groups and time of use and plant group, area, month interaction were significant. Average in vitro digestion of 31 food plants was 51 percent. Mean digestion of grasses was 57 percent, forbs 42 percent, and shrubs 55 percent. Yearling male …

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Breeding Biology And Prey Selection Of Ferruginous Hawks In Northwestern South Dakota, Charles L. Blair Jan 1978

Breeding Biology And Prey Selection Of Ferruginous Hawks In Northwestern South Dakota, Charles L. Blair

Electronic Theses and Dissertations

A study of the breeding biology and prey selection of ferruginous hawks (Buteo regalis) was conducted in northwestern South Dakota during 1976 and 1977. Twenty four pairs were located in 1976 and 18 pairs attempted to nest; 17 pairs located in 1977 attempted to nest. The ecological density of breeding pairs was approximately one per 100 km2. Young fledged per nesting attempt averaged 1.89 in 1976 and 2.29 in 1977. All but one nest were located in unbroken, lightly grazed prairie and all were situated on hills, buttes, or river cutbanks. General nest orientation was toward the south and west. …

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Fungal Control Methods, Diets And Water Temperatures Used To Culture Paddlefish, Polydon Spathula, Ronald L. Brandt Jan 1978

Fungal Control Methods, Diets And Water Temperatures Used To Culture Paddlefish, Polydon Spathula, Ronald L. Brandt

Electronic Theses and Dissertations

Studies were conducted at Gavins Point National Fish Hatchery, South Dakota, in 1976 and 1977, to evaluate the effects of diet and water temperature on growth and survival of paddlefish, Polyodon spathula, young, and the effects that fungicides have on hatching success and fry survival. The W-7 cool water diet was fed hourly and three times daily while the Liv commercial diet was fed hourly to paddlefish young for 40 days after swim-up. Average survival rate and total length of paddlefish fed W-7 hourly were 16.0% and 30 mm, those fed W-7 three times daily were 10.0% and 23 mm, …

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Non-Game Birds In Relation To Habitat Variation On South Dakota Wetlands, Michael J. Weber Jan 1978

Non-Game Birds In Relation To Habitat Variation On South Dakota Wetlands, Michael J. Weber

Electronic Theses and Dissertations

Non-game birds on South Dakota wetlands were surveyed on 476 quarter sections representing the major portion of South Dakota excluding the Missouri River and its impoundments and the Black Hills. Two surveys were conducted, one in May and a second in June, in both 1975 and 1976. The distribution of 13 non-game species was analyzed by physiographic strata and wetland classification: red-winged blackbird {Agelaius phoeniceus), yellow-headed blackbird (Xanthocephalus xanthocephalus), Wilson's phalarope (Steganopus tricolor), black tern (Chlidonias niger), lesser yellowlegs (Totanus flavipes), sora {Porzana carolina), marbled godwit (Limosa fedoa), willet (Catoptrophorus semipalmatus), American avocet (Recurvirostra americana}, American bittern {Botaurus lentiginosus), great …

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The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield Jan 1978

The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield

Electronic Theses and Dissertations

Cheese production and sales are a major part of the U.S. dairy industry. Total hard cheese sales have increased 60% in the past 10 yr. Per capita consumption of cheese for the same period has risen from 2.81 kilograms (kg) to 4.03 kg for a 43% increase. In response to greater consumer demand the amount of milk utilized in cheese production has increased markedly during the past quarter century rising from the low of 10% of annual milk production in 1950 to 24% in 1976. This recent increase in cheese production emphasizes the importance of achieving maximum yields of cheese …

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Water And Nitrogen Husbandry For Irrigated Corn In Central South Dakota, Stanley Eugene Papendick Jan 1978

Water And Nitrogen Husbandry For Irrigated Corn In Central South Dakota, Stanley Eugene Papendick

Electronic Theses and Dissertations

The purpose of this study was to evaluate the effects of supplemental water and nitrogen on corn yields. Central South Dakota was chosen as the location for this study because of its existing irrigation and the limited research data available from that part of the state. The objectives were: (1) to determine corn yield response to various water regimes, (2) to determine corn yield response to nitrogen applications, and (3) to determine corn yield response to nitrogen application methods.

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A Study Of The Attitudes Of University Faculty Academic Advisers Toward The Reserve Officers Training Corps On The Campus Of South Dakota State University, Terry Michael Monrad Jan 1978

A Study Of The Attitudes Of University Faculty Academic Advisers Toward The Reserve Officers Training Corps On The Campus Of South Dakota State University, Terry Michael Monrad

Electronic Theses and Dissertations

Purpose of this study is to determine the attitudes of university faculty academic advisers at South Dakota State University toward the Reserve Officers Training Corps (ROTC).

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Cinematographic Analysis Of Ball Trajectory During Free Throw Shooting Among Members Of The South Dakota State University Varsity Basketball Team, Herbert Harold Hofer Jr. Jan 1978

Cinematographic Analysis Of Ball Trajectory During Free Throw Shooting Among Members Of The South Dakota State University Varsity Basketball Team, Herbert Harold Hofer Jr.

Electronic Theses and Dissertations

Two-hundred and twenty successful and 143 unsuccessful free throw attempts, performed by 20 members of the South Dakota State University men's varsity basketball team, were photographed. Components of each trial which were analyzed included: (1) angle of release, (2) angle of entry, (3) height of the arch, (4) horizontal distance of the point of release from the highest point of the arch, (5) horizontal distance of the highest point of the arch to the front of the rim, and (6) height of the release. The mean and standard deviation values for each component were determined. A correlation analysis revealed that …

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Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani Jan 1978

Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani

Electronic Theses and Dissertations

Corn is by far the most widely used cereal grain in the United States for poultry feeding. In addition to its high energy content, corn provides adequate amounts of the essential fatty acids for maximum rates of growth and egg production. Palatability and ample xanthophyll and provitamin A contents of fresh corn are some o the other contributing factors for its popularity in livestock feeding. The most serious limitation in the nutritional value of corn as well as other cereal grains lies in the fact that they are low in both quantity and quality of protein. It has been a …

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