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Biology Of The Porcupine (Erethizon Dorsatum) In Northwestern South Dakota, Judith Johnson Jan 1977

Biology Of The Porcupine (Erethizon Dorsatum) In Northwestern South Dakota, Judith Johnson

Electronic Theses and Dissertations

The summer home ranges, food habits, cover preferences, population dynamics, metabolic rates, growth rates, and taxonomic characteristics were determined for porcupines (Erethizon dorsatum) in northwestern South Dakota. The summer home ranges were 158.2 ha for adult females, 90.4 ha for juveniles, and 57.9 ha for adult males. The population was 34 percent adult males, 16 percent juvenile males, 34 percent adult females, and 15 percent juvenile females. The preferred daytime cover choice was silver buffaloberry (Shepherdia argentea), followed by snowberry (Symphoricarpos occidentalis), earth dens, forbs, and low brush. Shrubs were the most important item in the diet, then trees, forbs, …

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Soil Salinity And Water Movement Through Soils As A Consequence Of Manure Applications, Ronald R. Schnabel Jan 1977

Soil Salinity And Water Movement Through Soils As A Consequence Of Manure Applications, Ronald R. Schnabel

Electronic Theses and Dissertations

The objectives of this investigation were: 1) to determine if under dryland conditions the salts present in manure applied to the land would accumulate in the root zone to levels high enough to seriously limit crop production, 2) to determine if the ratio of monovalent to divalent cations present in the manure would upset the balance of these cations in the soil and cause soil structure problems, and 3) to determine if the salts and organic matter added by the manure would affect the soil’s ability to transmit water.

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Mercury-Selenium-Arsenic Interrelationships In Broiler-Type Growing Hicks, Jiing-Chnan Chern Jan 1977

Mercury-Selenium-Arsenic Interrelationships In Broiler-Type Growing Hicks, Jiing-Chnan Chern

Electronic Theses and Dissertations

Mercury contamination of many marine coastal environments and some inland waters has resulted from discharger of mercury contained in industrial waters. In addition, the extensive use of mercury compounds as agricultural seed dressings, fungicides in paints, a slimicide in paper and pulp manufacturing and other uses have added to the environmental mercury burden. Even though a ban on the discharge of mercury is in effect, and agricultural and domestic uses of mercury have been greatly restricted, the problem continues. It has been estimated that it may be hundreds of years before the Great Lakes, contaminated by mercury from the chlorine-caustic …

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Services, Practices, Characteristics And Other Factors Affecting A Farmer's Selection Of A Farm Supply Or Marketing Firm, Karla Jean Nelson Kraner Jan 1977

Services, Practices, Characteristics And Other Factors Affecting A Farmer's Selection Of A Farm Supply Or Marketing Firm, Karla Jean Nelson Kraner

Electronic Theses and Dissertations

The difference between success and failure of a business can often be attributed to whether or not the customer is served in the manner he or she wants. Therefore, it is very important for farm supply and marketing firms to know what services, practices and products their customers want and to do all within reason to serve those needs. Sometimes distinctions must be made between customer wants and customer needs and sometimes it is not reasonable to try to serve every nee, but most of a customer’s needs must be met or he or she will shop elsewhere. This is …

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Design And Testing Of A Solar Energy-Intensifier For Drying Shelled Corn, Steven E. Saienga Jan 1977

Design And Testing Of A Solar Energy-Intensifier For Drying Shelled Corn, Steven E. Saienga

Electronic Theses and Dissertations

Agricultural crop drying provides numerous applications where low to moderate temperature rises can provide a large percentage of the grain drying requirements. The application of solar energy to grain drying depends on the capability of the solar energy system to provide temperature rises and enough heat to increase the rate at which moisture is removed from the wet grain. Current investigations of solar energy utilization for agricultural applications include many variations of solar collectors and solar concentrators. However, data available on the use of solar concentrators for specific agricultural applications in most climatic areas are limited. Because of the great …

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Food, Growth, And Reproduction Of White Crappies (Pomixis Annularis) And Black Crappies (P. Nigromaculatus) In Lake Poinsett, South Dakota, Thomas R. Busiahn Jan 1977

Food, Growth, And Reproduction Of White Crappies (Pomixis Annularis) And Black Crappies (P. Nigromaculatus) In Lake Poinsett, South Dakota, Thomas R. Busiahn

Electronic Theses and Dissertations

The food habits, food selectivity, growth, condition, and population structures of the white crappies (Pomoxis annularis) and black crappies (P. nigromaculatus) in Lake Poinsett, South Dakota, were studied from May, 1975, to May, 1976. The total food volume of 173 adult white crappies consisted of 59.0% plankton1o crustaceans, 25.2 % insects, 14.5 % fish, and 1.3 % miscellaneous organisms. The food volume of 39 adult black crappies consisted of 39.0 % planktonic crustaceans, 3.5 % insects, 57.8 % fish, and 0.7 % miscellaneous organisms. Both species selected Daphnia pulex over other zooplankton and probably contributed to its decline from 193.8/l …

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A Leptospirosis Survey Of Small Mammals In Brookings County, South Dakota, Raymond Elton Kiewit Jan 1977

A Leptospirosis Survey Of Small Mammals In Brookings County, South Dakota, Raymond Elton Kiewit

Electronic Theses and Dissertations

Small mammals from western Brookings County, South Dakota were collected and examined for leptospirosis. The major methods used were the microscopic agglutination test and darkfield examination of urine for spirochetes. From 32 sites, a total of 248 animals were collected from which 73 (29.4%) serum samples and 82 (33.1%) urine samples were obtained. Spirochetes were observed in the urine of 3 deer mice (Peromyscus maniculatus). One of the deer mice had spirochetes in the urine and agglutinating antibodies to L. wolfii in the serum. One thirteen-lined ground squirrel (Spermophilus tridecemlineatus) had an agglutination titer of 1:10 to L. Hardjo, and …

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Effect Of Type Of Birth, Breed Of Sire And Postweaning Nutrition On Ewe Lambs. Ii. Production At 12 Months Age, A. L. Slyter, D. Morris, D. G. Levis Jan 1977

Effect Of Type Of Birth, Breed Of Sire And Postweaning Nutrition On Ewe Lambs. Ii. Production At 12 Months Age, A. L. Slyter, D. Morris, D. G. Levis

South Dakota Sheep Field Day Proceedings and Research Reports, 1977

The practice of breeding ewes to lamb at 12 months of age has not been widely accepted by commercial operators, even though previous research has indicated that it can be done successfully in some management systems. One reason for this might be that long-term effects on lifetime productivity have not been evaluated. This paper summarizes production performance during the first year of a lifetime study currently in progress. Data from 382 Suffolk Targhee and Targhee ewes born in 1971-1975 and developed under two different nutritional levels are included in this report. Subsequent lifetime production for these ewes will be reported …

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Meeting Wastewater Discharge Standards By Use Of High-Rate Infiltration-Percolation Basins, Larry D. Demers Jan 1977

Meeting Wastewater Discharge Standards By Use Of High-Rate Infiltration-Percolation Basins, Larry D. Demers

Electronic Theses and Dissertations

Two fundamental problems have been associated with the use of large quantities of water – depletion and deterioration in quality. Present advanced wastewater treatment technology has shown that tertiary treatment of wastewater can produce high quality effluents, but large amounts of energy and chemicals must be sacrificed. An alternative to these costly systems is the land treatment system, which utilizes the soil mantle as a multiprocess “living filter” (2). Infiltration-percolation, a land treatment method, can be used for the reclamation of large quantities of wastewater. The infiltration-percolation advance treatment system has been investigated extensively by the Civil Engineering Department at …

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Effects Of Listeria Hemolysin On Mouse Embryos, Bruce A. Beck Jan 1977

Effects Of Listeria Hemolysin On Mouse Embryos, Bruce A. Beck

Electronic Theses and Dissertations

Listeriosis, an infectious disease of animals and man, is characterized by localized encephalitis, meningoencephalitis or abortion. In 1933 Listeria was first isolated from a human infant and in the late 1930’s, listeric abortion was first recorded in cattle and sheep. Not until 1950 was much attention given to perinatal listeric infection. Since then, uterine infection and abortion, stillbirth or neonatal death have been reported in virtually all species of animals. Statistics from the South Dakota Animal Research and Diagnostic Laboratory show that abortion cause by Listeria monocytogenes accounted for 48 per cent of the 164 reported cases of listeriosis over …

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Bacterial Methylation Of Selenium, Wen-Ing Hwang Jan 1977

Bacterial Methylation Of Selenium, Wen-Ing Hwang

Electronic Theses and Dissertations

For several decades, excessive levels of selenium in feeds have been known to cause various toxic symptoms in livestock. Excessive selenium levels in feeds are the result of plants growing on soils which contain significant levels of selenium. The natural cycling process by which selenium becomes available appears to involve various chemical weathering processes. In addition, microbial action may play a direct or indirect role in rendering selenium soluble. (1). The extent to which microoganisms are involved in the natural cycling processes has been subject to considerable discussion. It has been demonstrated that mold can convert selenate or selenite to …

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Cover Use And Activity Time Budget Of Blue-Winged Teal, Mallard, And Pintail Broods, James K. Ringelman Jan 1977

Cover Use And Activity Time Budget Of Blue-Winged Teal, Mallard, And Pintail Broods, James K. Ringelman

Electronic Theses and Dissertations

Blue-winged teal (Anas discors), mallard (A. platyrhynchos), and pintail (A. acuta) broods were observed on 17 days between 25 June and 30 July, 1976. Brood activities and cover uses were recorded continuously from first light until dark. Observations of 269 broods from three wetlands were evaluated by species and brood age-class. Activity time budgets revealed significant (p<.01) age specific differences in total feeding time and visibility among age-classes of all species combined and age-classes of blue-winged teal broods. Feeding modes also varied among age-classes. Daily patterns of cover use varied among brood age-classes and species. Morning and evening feeding peaks became more pronounced, and overall visibility increased, with brood age. Interspecific differences in daily activity patterns were observed among broods of the same age-class. Duration of active periods increased with age in blue-winged teal broods. Active periods recurred at regular intervals in all broods throughout the day, suggestive of polycyclic behavior patterns similar to those of adult ducks. A progressive increase in brood visibility was attributed primarily to seasonal changes in brood age structure and to wetland water loss. Temperature and wind speed influenced brood visibility during most observation days. Climatic conditions favorable to nighttime brood activity influenced brood behavior during the following day. Accuracy of present brood inventory techniques could be improved if considerations were made for brood behavior patterns and environmental factors which alter brood cover use.

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South Dakota State University Graduation Exercises, December 18, 1976, Brookings, South Dakota, South Dakota State University Dec 1976

South Dakota State University Graduation Exercises, December 18, 1976, 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 Fall 1976 Graduation Exercises are Harlan L. Klug, Processor Emeritus of Chemistry, and Darlien G. Klug, Assistant Professor Emeritus of Library Science. The commencement address titled, "Tracks in the Snow," will be delivered by Virginia Driving Hawk Sneve, Author. President Sherwood O. Berg will confer degrees and present diplomas. Col. Lewis D. Overstreet and Col. Kendall O. Iverson will recognize Army and Air Force officer commissions.

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Sdsu Collegian, December 15, 1976, Student Association Of South Dakota State University Dec 1976

Sdsu Collegian, December 15, 1976, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 85, No. 16

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Sdsu Collegian, December 8, 1976, Student Association Of South Dakota State University Dec 1976

Sdsu Collegian, December 8, 1976, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 85, No. 15

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Capital Investment Requirements For A 500, 1,000 And 10,000 Head Cattle Feedlot, Robert Allen, Myron Eighmy, David Jibben Dec 1976

Capital Investment Requirements For A 500, 1,000 And 10,000 Head Cattle Feedlot, Robert Allen, Myron Eighmy, David Jibben

Economics Research Reports (1969 - 2017)

The purpose of this study is to figure the fixed costs of constructing and equipping a 500, 1,000 or 10,000 cattle feedlot given certain assumptions and restrictions, and to analyze those costs in terms of economic efficiency. The fixed costs are divided into six areas of analysis: the equipment of the feedlot, the pole buildings, the concrete flooring for the pole buildings, the feedlot building materials, the feedlot storage equipment and the waste disposal.

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Southeast South Dakota Experiment Farm Annual Progress Report, 1976, Agricultural Experiment Station Dec 1976

Southeast South Dakota Experiment Farm Annual Progress Report, 1976, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This sixteenth annual report of the research program at the Southeast South Dakota Experiment Farm has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota. Reports in this document include information on: temperatures and precipitation data, corn breeding and performance, soybean research and planting, crop rotation, grain trials, and animal waste disposal.

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Effect Of Housing And Supplemental Dietary Iron On Performance On Growing-Finishing Pigs, Richard C. Wahlstrom, George W. Libal Nov 1976

Effect Of Housing And Supplemental Dietary Iron On Performance On Growing-Finishing Pigs, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

Therefore, the objectives of this experiment were (1) to determine the performance of pigs fed in confinement or open-front type building with concrete outside lots and (2) to determine the effect of 250 ppm of supplemental iron on gain, feed consumption and feed efficiency of growing-finishing pigs.

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Dehulled Oats And Hulless Barley In Diets Of Young Weaned Pigs, Richard C. Wahlstrom, George W. Libal Nov 1976

Dehulled Oats And Hulless Barley In Diets Of Young Weaned Pigs, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

The objective of the experiment reported herein was to evaluate a dehulled high protein oats and a hulless barley in diets of young weaned pigs.

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Evaluation Of Chelated Copper As A Growth Stimulant In Diets Of Growing Pigs, Richard C. Wahlstrom, George W. Libal Nov 1976

Evaluation Of Chelated Copper As A Growth Stimulant In Diets Of Growing Pigs, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

The objectives of this experiment were to determine the effect of chelated copper on rate and efficiency of growing pigs and to evaluate different levels of chelated copper as a growth promotant.

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Compensatory Growth Of Swine Following Protein Insufficiency, George W. Libal, Richard C. Wahlstrom Nov 1976

Compensatory Growth Of Swine Following Protein Insufficiency, George W. Libal, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1976

The study reported herein was designed to study the ability of the pig to compensate for reduction in gain and efficiency of gain due to a low protein diet during an early growth period when fed adequate or excess protein during a later growth period.

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High Protein Oats In Pig Starter Diets, Richard C. Wahlstrom, George W. Libal Nov 1976

High Protein Oats In Pig Starter Diets, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

The objective of this experiment was to determine the level of Spear oats that could be used in young, weaned pig starter diets contained equal amounts of lysine.

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Procedures To Evaluate Market Pigs, Dan H. Gee Nov 1976

Procedures To Evaluate Market Pigs, Dan H. Gee

South Dakota Swine Field Day Proceedings and Research Reports, 1976

For a number of years there has been a growing demand for a uniform system of market hog evaluation. The pork industry wanted a system where the basic figures from production and carcass information could be combined and results obtained for industry comparison. After 2 years of study by the National Pork Producers Council in cooperation with the American Meat Science Association, a new system of market hog evaluation based on percent or pounds of lean muscle in total carcass weight was initiated. The National Pork Producers Council hopes the system will meet the demands of the pork industry for …

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Lysine And Energy Levels In Growing And Finishing Swine Diets, James L. Girard, George W. Libal, Richard C. Wahlstrom Nov 1976

Lysine And Energy Levels In Growing And Finishing Swine Diets, James L. Girard, George W. Libal, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1976

High feed pices the past few years have stimulated interest in adding fat to swine rations in an attempt to increase feed efficiency and improve rate of gain. Research has shown that, to get maximum utilization of added energy, protein levels in the diet also must be increased to maintain the calorie to protein ratio. In normal corn-soybean meal rations, lysine has been shown to be the first limiting amino acid. the experiment reported here was conducted to determine the lysine levels necessary in diets with and without fat and their effect on feed consumption, feed efficiency and rate of …

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Effect Of Energy Source In Late Gestation On Pig Survival And Performance, Richard C. Wahlstrom, George W. Libal Nov 1976

Effect Of Energy Source In Late Gestation On Pig Survival And Performance, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

The objective of the experiment reported herein was to determine if the source of energy in the gestation diet during the last 4 weeks of gestation would have an effect on pig survival and performance.

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Supplemental Vitamin D In Pig Diets, Richard C. Wahlstrom, George W. Libal Nov 1976

Supplemental Vitamin D In Pig Diets, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

Vitamin D is necessary for absorption and metabolism of calcium and phosphorus in the body. A deficiency of this vitamin will result in rickets. Most feedstuffs used in swine diets are essentially devoid of vitamin D. The animal can receive the necessary vitamin D if exposed to the ultraviolet rays of the sun. Therefore, pigs raised in confinement with no opportunity to be exposed to sunshine need supplemental vitamin D in their diets.

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Blood Meal And Meat Meal As Substitutes For Soybean Meal In Diets For Growing-Finishing Swine, Richard C. Wahlstrom, George W. Libal Nov 1976

Blood Meal And Meat Meal As Substitutes For Soybean Meal In Diets For Growing-Finishing Swine, Richard C. Wahlstrom, George W. Libal

South Dakota Swine Field Day Proceedings and Research Reports, 1976

This experiment was conducted to obtain additional data on the value of rotary steam dried blood meal and meat meal as alternative protein sources to replace soybean meal in diets for growing finishing swine.

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Vitamins, Trace Minerals And Feed Additives, Richard C. Wahlstrom Nov 1976

Vitamins, Trace Minerals And Feed Additives, Richard C. Wahlstrom

South Dakota Swine Field Day Proceedings and Research Reports, 1976

Although natural feedstuffs supply varying amounts of most of the vitamins and trace minerals, practical diets for swine are generally supplemented with certain of these nutrients. This article will discuss those vitamins and trace minerals that need more attention in swine feeding and feed additives that are used for growth promotion.

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Twentieth Annual Swine Day, Animal Science Department Nov 1976

Twentieth Annual Swine Day, Animal Science Department

South Dakota Swine Field Day Proceedings and Research Reports, 1976

These are the complete proceedings of the twentieth annual South Dakota Swine Field Day held on November 18, 1976 at South Dakota State University.

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Sdsu Collegian, November 10, 1976, Student Association Of South Dakota State University Nov 1976

Sdsu Collegian, November 10, 1976, Student Association Of South Dakota State University

The Collegian Archive : 1970 to 1979

Vol. 85, No. 12

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