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Effects Of Bull Exposure On Postpartum Interval And Reproductive Performance In Beef Cows, Corinne D. Naasz

Electronic Theses and Dissertations

The postpartum interval is the period of time from parturition until the first postpartum estrus that is accompanied by ovulation. The postpartum interval of the suckled beef cow ranges from 46 to 168 days. A prolonged postpartum interval in the beef cow is of major economic importance in terms of cow productivity. The achievement of a 365 day calving interval requires a calving to conception interval of 80 to 85 days. Since average calving rates to a given service or insemination are only 50 to 60%, the earlier a cow begins to cycle postpartum, the greater the chance of successful …

Studies On The Sterile-Insect Technique As A Means Of Controlling The Stable Fly, Stomoxys Calcitrans (L.), In A Beef Cattle Feedlot In Brookings, South Dakota, Michael Aguilar Catangui

Electronic Theses and Dissertations

The stable fly is usually the only biting, blood-sucking fly breeding in appreciable numbers in and around confined animal facilities. An average number of 50 flies per animal can reduce the weight gains of calves on a growing ration by 0.9 kilogram per day. At present, the level of 5 stable flies per front leg of confined beef cattle is used as an indicator of the economic threshold when control measures must be instituted. Since the immature stages of the stable fly develop in decaying organic matter, the most practical control measure has been sanitation or the proper storage and …

Effects Of Body Condition On Reproductive Performance Of Range Beef Cows, Patrick A. Momont

Electronic Theses and Dissertations

A 3 yr. 22 factorial study was conducted with 133 mature Simmental X Angus cows calving for 81 d beginning in mid-March to determine minimum cow body condition required for adequate reproductive performance of range beef cows. Two levels of early (early December to mid-February) and late (from calving date to early May) winter nutrition were imposed. Nutritional treatments produced total winter (December-May) weight changes ranging from -188 to -5 kg and wide cow body condition differences at calving and breeding. The breeding season lasted 60-70 d beginning June 5 each yr. Visual condition scores (CS 1-9, l=thin), weight to …

Habitat Selection And Sexual Suggestion Of Rocky Mountain Bighorn Sheep In Custer State Park, South Dakota, Larry J. Layne

Electronic Theses and Dissertations

Spatial segregation between Rocky Mountain bighorn sheep (Ovis canadensis canadensis) ram and ewe herds has been documented by Geist (1971), Geist and Petocz (1977), Shank (1979), Morgantini and Hudson (1981), and Hogg (1983), where ram herds consist of mature males approximately 4 years old and older and ewe herds are comprised of all other individuals. Geist (1971), Shank (1979), and Hogg (1983) have shown that segregation occurs year-round except during the breeding season (November and December) when the sexes congregate on a traditional breeding range (cf. Geist 1971, p 209). These studies also have shown that the sexes remain separated …

Growth And Proteolytic Activity Of Selected Psychrotrophic Bacteria In Whole Milk And Whole Milk Retentate, Ravinder Reddy

Electronic Theses and Dissertations

In the last twenty years a number of membrane separation processes have evolved from laboratory scale, through pilot plant investigation, to full scale production units. One such process, ultrafiltration, has been found particularly useful in the dairy industry. Ultrafiltration uses porous polymeric membranes to separate molecules, principally on the basis of their molecular weight. In milk, fat, protein and associated substances are retained on the membrane. Permeate, which passes through the membrane contains mainly water, lactose and other low molecular weight substances. There is interest in ultrafiltration of milk because of it is potential importance in saving costs to both …

Bodybuilders' Knowledge And Perceptions Of The Use Of Anabolic Steroids, James P. Combs

Electronic Theses and Dissertations

This study addressed the following questions:
1. What knowledge do bodybuilders have regarding the positive and negative effects of anabolic steroids?
2. What is the perception of bodybuilders regarding the positive and negative effects of anabolic steroids?

Effects Of Fire In The Northern Great Plains, Kenneth F. Higgins, Arnold D. Kruse, James L. Piehl

SDSU Extension Circulars

Fire has been used inconsistently to manage native and tame grasslands in the Northern Great Plains (NGP) of the north-central U.S. and south-central Canada, particularly the grasslands found in prairies, plains, agricultural land retirement programs, and moist soil sites. This has happened for three primary reasons: (1) the reduction of American Indian use of fire after 1875, (2) fire suppression and land use changes that put increasingly more acres under annual tillage since about the same time, and (3) a growing resistance to the use of fire since about 1940, largely due to media overemphasis of its harmful effects (e.g., …

Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell

Electronic Theses and Dissertations

Thirty lactating Holstein cows were randomly assigned to one of three diets to evaluate chickpeas as a dietary supplement from wk 4 to 16 postpartum. Diets contained chickpeas at 0, 50, and 100 % of the concentrate dry matter in place of corn and soybean meal. Total mixed diets, fed individually, contained concentrate corn silage and alfalfa hay at 52, 32, and 16 % of the dry matter. Milk yield (34.5, 35.1, 35.7 kg/d) was higher for cows fed 100 % chickpeas than 0 % chickpeas. Fat (3.06, 3.09, 3.28 %) was highest for cows fed 100 % chickpeas. Milk …

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1986, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1986 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Plant Science Department. This report includes information on the 1986 crop season, climate data applications of chloride for wheat, spring wheat breeding, oats research, barley and rye testing, grain trials, corn breeding row spacing, sunflower studies and trials, and weed control.

South Dakota State University Graduation Exercises, December 13, 1986, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the individuals listed in the program do not constitute an official confirmation of having met the graduation requirements. The 1986 Fall Graduation Exercises will commence with introductions by University President Robert T. Wagner. Serving as honorary marshals are Dorothy E. Deethardt, Professor Emeritus of Food Research, and Leslie D. Kamstra, Professor Emeritus of Animal Science. Dr. Donald P. Evenson, Professor of Chemistry, will deliver the commencement address titled, "Research is the Foundation of Education." Dr. Paul E. Nordstrom, Acting Vice President for Academic Affairs, will extend acknowledgment to honor students. The commissioning of Army and Air …

South Dakota Farm And Home Research (Fall 1986), South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

This issue contains the 99th South Dakota Agricultural Experiment Station Annual Report. This report covers July 1, 1985 - June 30, 1986.

Director’s Comment [p] 2
Agricultural Engineering [p] 3
Animal and Range Sciences [p] 6
Biology [p] 10
Diary Science [p] 12
Economics [p] 15
Home Economics [p] 17
Horticulture, Forestry, landscape and Parks [p] 19
Microbiology [p] 21
Plant Science [p] 24
Rural sociology [p] 28
Station Biochemistry [p] 30
Veterinary science [p] 32
Wildlife and fisheries Sciences [p] 34
99^th Annual report [p] 37

South Dakota State University 1986 Freshman Catalogue And Application, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comment: A south Dakota wheat line may be answer to Hessian fly in Morocco [p] 2
Woodies go ‘beep’: Wood ducks that talk to us have a clear message: oxbows are best nurseries around [p] 3
Lifestyle: clue to obesity?: Over half in survey said they were overweight; we cooperate in two-state search for causes [p] 6
Wheat: the checkoff: It’s an R7D’ program, an investment in our future, that’s been shown to pay off [p] 11
Wheat: the package: A new wheat means ‘maybe a profit,’ unproven until grower adds ‘other 50%’ of the package [p] 13
Alternative …

South Dakota State University General Catalog 1986-1988, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

The Relationship Between Exercise Activities And Self-Esteem In Elderly Populations, Marcia Taylor

Electronic Theses and Dissertations

It has been recognized that there is a connection between exercise and mental well-being and studies conducted on college students and employees by Hayden and Allen, Pauley, Palmer, Wright, and Pfeiffer, and Short, DiCarlo, Steffee, and Pavolou all support a positive relationship between physical exercise and a feeling of positive self-worth. It has also been found by Conroy, Smith, and Felthous and Collingwood that physical fitness can function as a therapeutic intervention for mentally and physically debilitated clients. However, none of these studies segregated the findings according to group or individual exercise activities. The potential influence of the group setting …

Soutn Dakota State University One-Hundredth Annual Commencement, May 10, 1986, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the individuals listed in the program do not constitute an official confirmation of having met the graduation requirements. The 100th Annual Commencement ceremony will commence with introductions by University President Robert T. Wagner. Serving as honorary marshals are Dr. Ardyce Gilbert, Dean Emeritus of Home Economics, and Harry R. Svec, Assistant Professor Emeritus of General Engineering. The commencement addresses will be delivered by Russell F. Daly, titled "Take It All With You," and Polly K. Foss, titled "Our Future: The Limitless Mind." Dr. George S. McGovern will be honored with a Doctor of Public Service honorary …

Special Supplemental Food Program For Women, Infants And Children : Attitudes Of South Dakota Participants, Jane Wilson Howard

Electronic Theses and Dissertations

The purpose of this study was to document and analyze the attitudes of participants in the Special Supplemental Food Program for Women, Infants, and Children (WIC) in South Dakota. Demographic and attitudinal data were collected in December 1983 from a twelve percent random sample of the participants in the South Dakota WIC Program. Demographic and attitudinal information was obtained from a written attitude assessment instrument designed by the researcher. Seven hundred thirty-two instruments were sent out; 527 were completed and returned. All data was used in compiling response frequencies and statistical analysis. Analysis of variance and the Waller-Duncan t test …

Effects Of Prostaglandin F2a [Alpha] Dose On Synchronizing Ovine Estrus Using A Single Injection Regimen, Karl F. Hoppe

Electronic Theses and Dissertations

The cyclic nature of the reproductive process for females has elicited the focus of reproductive specialists. Alterations in this cycle may lead to a more productive female and consequently a more productive livestock operation. These alterations could entail changing the time of the year conception can occur and the specific times during the week estrus may be displayed. For example, the domestic sheep, Ovis aries, has an estrous cycle length of approximately 17 d, whereas the European beef cow Bos Taurus has an estrous cycle of approximately 21 d. Variations within species lead to ranges for parameters which may place …

Nutrient Intake Of Extension Homemakers, Bernadine L. Enevoldsen

Electronic Theses and Dissertations

The purpose of the study was to determine the relationship of certain demographic factors to dietary intake of participants in the Brookings County Extension Homemakers' program. Specific questions to be addressed were: 1. With the availability of knowledge, what are the actual food practices or food habits of women involved in nutrition adult education programs on a regular basis? 2. When their diets are analyzed for selected essential nutrients, will their nutrient intake meet the RDA? 3. What, if any, is the relationship between selected demographic factors and the percent of the RDA for nutrients in their diets? 4. Will …

Dietary Alteration Of The Energy Metabolism In The Sow During Late Gestation, Reid A. Christopherson

Electronic Theses and Dissertations

Mortality among young pigs prior to weaning is extremely high with swine producers frequently realizing a death loss of 25% of the pigs farrowed. The majority of these deaths occur within 3 d postfarrowing and can be attributed to being born weak crushed by the dam starvation and chilling. Generally, these causes are the result of the inability of the baby pig during the first few days of life to adequately meet its metabolic energy requirements for sustaining vital body functions. The neonatal pig until about 3 to 4 d of age has a difficult time adjusting to those environmental …

Moral Drama : The Rhetorical Style Of Geraldine Ferraro, Patricia R. Boik

Electronic Theses and Dissertations

Just as the events of the Seneca Falls Convention changed the lives of women in America, Geraldine Ferraro's vice-presidential nomination has provided new opportunities for a new generation. It is the purpose of this study to examine the rhetoric of Ferraro and determine the motivation for the method of style used in her speeches. In rhetorical terms style refers to word choice and usage. The motivating factors and specific style developed by Ferraro were determined by answering the following questions: 1. What historical, economical, and social factors influenced Ferraro's career choices? 2. How are the recurring themes in Ferraro 's …

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comment: Thirteen citizen’s-your neighbors-will set our goals. Help them out [p] 2
Keep oats clean: No racehorse premium, dockage, even refusal at the elevator if oats carry live insects [p] 3
McCrory Gardens facelift: Added attractions coming to garden that has already attracted worldwide acclaim [p] 6
Shared goals: Seedsmen and SDSU are partners in research and education acreage east of Brookings [p] 10
New: a chloride test: SDSU is first land=grant lab to make the recs; chloride mat boost your wheat yields [p] 12
More sheep, more disease: Scientists have become sleuths, tracking down elusive ‘villain’ in sheep …

1986 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Effects Of Body Condition On Reproductive Performance Of Beef Cows, P.A. Momont, R.J. Pruitt

South Dakota Beef Report, 1986

Cows were fed differing nutritional levels before and after calving to create a wide range of cow body condition or fleshiness prior t o calving and at the beginning of the breeding season. Cows that were fleshier prior t o calving and when turned on pasture in early May (30 days prior t o the beginning of the breeding season) had a higher cycling rate in early May, June and July. Cows maintaining or increasing slightly in body condition (precalving to early May) tended to have a higher cycling rate during the breeding season than cows which lost body condition …

The Release Of Insects Sterilized By Colbalt 60 To Control A Wild Population Of Stable Flies At The Sdsu Beef Cattle And Sheep Nutrition Unit In Brookings, Emmert R. Easton, Michael A. Catangui

South Dakota Beef Report, 1986

Sterile stable flies were released weekly a t the SDSU Beef Cattle and Sheep Nutrition Unit at Brookings from July 24 through September during the summer 1986 season t o eliminate wild populations of insects. Flies that were sterilized were marked with a dye so when recaptured by an insect net or a sticky trap they could be differentiated from wild, normal or fertile flies. A trend toward reduced f l y numbers was observed 3 weeks following the first release. A 1:5 ratio of sterile to wild flies was achieved in 6 weeks.

Whey Ultrafiltration Permeate Products As Feeds For Steers, D.J. Schingoethe, D.G. Rollins, D.P. Casper, W.J. Costello

South Dakota Beef Report, 1986

A field trial experiment was conducted using 50 steers t o evaluate the feeding value of the ultrafiltrated permeate of whey (UFP) and products made from additional processing of UFP. All steers were fed nutritionally balanced grain mixes and hay. Experimental diets were control (C), in which the grain mix contained primarily corn, oats and soybean meal; UFP fed as the only liquid; partially fermented permeate (PFP), which contained 10% dried yeast added to the ultrafiltrated permeate, fed as the only source of liquid; fermented ammoniated condensed permeate (FACP), which replaced soybean meal in the grain mix; and ammolac (AMM), …

Effects Of Level Of Energy Supplement In Early Winter And Level Protein After Calving On Beef Cows Grazing Native Range, R.J. Pruitt

South Dakota Beef Report, 1986

Simmental-Angus crossbred cows grazing native range near Cottonwood, SD, were fed two precalving levels of energy supplement and two postcalving levels of protein supplement. Cow weight change and reproductive performance were similar for all treatments. Although calves from cows supplemented with higher levels of energy gained faster from birth to early May, gains to weaning were similar for all treatments.

1986 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extention Service, South Dakota State University

South Dakota Beef Report, 1986

We are pleased to present this, our first annual SDSU BEEF REPORT. It is a compilation of research reports and applied information relating especially to the beef cattle industry. The papers included in this report have been prepared by SDSU research and extension scientists, not only in the Department of Animal and Range Sciences, but also in Chemistry, Economics, Dairy Science, Plant Science and Veterinary Science. Since some of the projects from which results are reported are still in progress, the preliminary nature of the results should be recognized. For the reader's convenience, the articles included are grouped by specific …

Lactational And Systemic Responses To The Supplementation Of Protected Methionine In Soybean Meal Diets, Daniel J. Illg

Electronic Theses and Dissertations

The high producing dairy cow requires a complex balance of protein and energy. Microbial protein provides a substantial amount of the amino acids absorbed by the small intestine. High production rates cannot be attained with microbial protein as .the sole source of amino acids. The ten classical essential amino acids are required for milk protein synthesis. Increasing the amount of available amino acids to the mammary gland has improved casein production, indicating substrate availability as a controlling factor to milk protein synthesis. A major portion of the nitrogen component of milk is derived from free plasma amino acids. Uptake by …

Inhibition Of Psychrotrophic Bacterial Growth In Refrigerated Milk By Addition Of Carbon Dioxide, Robert Francis Roberts

Electronic Theses and Dissertations

The advent of on-farm refrigerated storage for raw milk in the late 1940's and its subsequent adoption by North American dairyman 'during the next 20 years essentially eliminated spoilage of milk by lactic acid bacteria. However, refrigeration does not prevent growth of all microorganisms present in raw milk (9, 33, 51, 52, 54, 55). Many microorganisms capable of growth at refrigeration temperatures, termed psychrotrophic bacteria, are present as normal contaminants in raw milk supplies. For purposes of clarity, psychrotrophic microorganisms have been defined as microorganisms capable of growth at 7°C or below regardless of their optimum growth temperature (9). Milk …