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Evaluation Of Laminar Flow And Nursing Station Environments Forthe Preparation Of Intravenous Admixtures, Elizabeth Land Morgan
Evaluation Of Laminar Flow And Nursing Station Environments Forthe Preparation Of Intravenous Admixtures, Elizabeth Land Morgan
Electronic Theses and Dissertations
No abstract provided.
Metabolism Of Urea Nitrogen By Rumen Ciliate Protozoa, Alan Lewis Vogel
Metabolism Of Urea Nitrogen By Rumen Ciliate Protozoa, Alan Lewis Vogel
Electronic Theses and Dissertations
The objective of this research was to study the utilization of urea by mixed populations of rumen protozoa in vitro in the absence of bacteria. Initial experiments were conducted to determine the validity of chemical determinations used by other researchers in quantitating the nitrogen fractions in the medium following incubation. An experiment was conducted to determine the utilization of urea by rumen bacteria and this served as the basis for evaluating utilization of urea by protozoa. Culture techniques were developed to grow and maintain protozoa under in vitro conditions. Three experiments were conducted in which various nitrogen fractions of fermentation …
The Symbiotic Nitrogen-Fixing Endophyte Of Shepherdia Argentea, Ronald J. Stangeland
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.
Fungal Succession On Living Foliage And Litter Of Loblolly Pineand Upland Depleted Hardwood Stands In North Mississippi, Edna Sue Watson
Fungal Succession On Living Foliage And Litter Of Loblolly Pineand Upland Depleted Hardwood Stands In North Mississippi, Edna Sue Watson
Electronic Theses and Dissertations
No abstract provided.
Mare's Milk Composition As Related To "Foal Heat" Scours, Robert H. Johnston
Mare's Milk Composition As Related To "Foal Heat" Scours, Robert H. Johnston
Electronic Theses and Dissertations
A condition known as “foal heat" scours often develops in young foals during the mare's first estrum, which usually commences at nine days post-partum. Although death due to this affliction is rare, the results such as loss or hair around the anus, unthriftiness of the foals, foul odor in the stable area, and unsight1iness or the foals causes more than minor concern among horsemen. Severa1 causes for "foal heat" scours have been proposed by those familiar with the condition Among these theories are (1) changes in the composition of the milk, (2) overloading of the foal's digestive tract, (3) ingestion …
Cell-Wall Analyses Of Diphtheroids Isolated From Cattle And Swine, Everett E. Scheetz
Cell-Wall Analyses Of Diphtheroids Isolated From Cattle And Swine, Everett E. Scheetz
Electronic Theses and Dissertations
Biever, working in this laboratory, isolated numerous diphtheroidal organisms from cattle and swine sources. These anaerobic diptheroids were morphologically similar to organisms in the genera Corynebacterium and Actinomyces. King and Meyer found that isolates of anaerobic diptheroids from human sources were more closely related to the Corynebacterium based upon metabolic and serologic differentiation. Their work consisted of separating A. bovis from several isolates of anaerobic diptheroids on the basis of the catalase test, litmus milk reactions, and the fermentation of xylose, salicin, and raffinose. However, Grasser reported that the fermentation reactions are variable and cannot be used as definite criteria …
Tritiated Thymidine And Colchicine Studies Of Cells As A Function Of Size In The Mouse Ehrlich Ascites Carcinoma, Pierre Rivalier Chalaron
Tritiated Thymidine And Colchicine Studies Of Cells As A Function Of Size In The Mouse Ehrlich Ascites Carcinoma, Pierre Rivalier Chalaron
Electronic Theses and Dissertations
No abstract provided.
A Comparison Of The Growth Rate Of Mouse Leukemia L-1210 In Modified Sri-14 Medium And Modified Hutchison Medium And The Effectof Vaccinia Virus In Vitro, James Rutherford Baldwin
A Comparison Of The Growth Rate Of Mouse Leukemia L-1210 In Modified Sri-14 Medium And Modified Hutchison Medium And The Effectof Vaccinia Virus In Vitro, James Rutherford Baldwin
Electronic Theses and Dissertations
No abstract provided.
A Comparison Of The Child-Rearing Practices In Japan And The United States, Mayumi Onuma
A Comparison Of The Child-Rearing Practices In Japan And The United States, Mayumi Onuma
Electronic Theses and Dissertations
No abstract provided.
A Modified Prill And Hammer Method Used In The Study Of Diacetyl Production By Single Strain Lactic Streptococci, Burdell D. Alfke
A Modified Prill And Hammer Method Used In The Study Of Diacetyl Production By Single Strain Lactic Streptococci, Burdell D. Alfke
Electronic Theses and Dissertations
A dicarbonyl compound, 2, 3-butanedione, commonly referred to as diacetyl or biacetyl, is considered by many to be-an important flavor constituent of butter and butter cultures. Milk fat has no natural diacetyl content and in the past the diacetyl found in butter resulted from bacterial fermentation of the cream before churning. In recent years commercial lactic cultures have been used, which are added to the fat granules before ''working" of the butter. Bacterial cultures used by the dairy industry generally consist of a mixture of two streptococcus types. A homofermentative type produces primarily lactic acid from the lactose of milk. …
Comparison Of Two Cultures For Use In Preacidified Skimmilk For Cottage Cheese Manufacture, Daryl D. Boddicker
Comparison Of Two Cultures For Use In Preacidified Skimmilk For Cottage Cheese Manufacture, Daryl D. Boddicker
Electronic Theses and Dissertations
Curd formation in a cultured dairy product is brought about by the addition of a bacterial culture capable of producing lactic acid from lactose. The primary function of this culture is to produce sufficient lactic acid to cause coagulation of the caseinate system of skimmilk. A secondary function of the culture is the production of flavor compounds considered to be desirable in these products. The flavor compounds produced by the normal growth of citric acid fermenting organisms are water soluble, and are largely removed during washing of the Cottage cheese curd. Therefore, flavor compounds are normally added to the cheese …
A Follow-Up Study Of Guidance And Counseling Graduates From South Dakota State University 1957-1966, Terry Grant Nelson
A Follow-Up Study Of Guidance And Counseling Graduates From South Dakota State University 1957-1966, Terry Grant Nelson
Electronic Theses and Dissertations
To understand more fully the reasons for this Follow-up Study of Guidance and Counseling Graduates from South Dakota State University from 1957 to 1966, one must start looking at the history and development of the Guidance and Counseling program. The first guidance course offered at South Dakota State University was in 1928. The course was Vocational Guidance, and it dealt with the need for vocational guidance, duties of vocational counselors, methods of collection, preparing, and using occupational information for counseling, and vocational guidance in the small high school. This course was taught at the undergraduate level. The first real emphasis …
The Interpretation Of Non-Material Culture Patterns From Prehistoric Archeological Remains In The Southeastern United States, John Marshall Connaway
The Interpretation Of Non-Material Culture Patterns From Prehistoric Archeological Remains In The Southeastern United States, John Marshall Connaway
Electronic Theses and Dissertations
No abstract provided.
Bacteriological Studies Of The Thermoduric Anaerobic And Non-Thermoduric Anaerobic Population Of Alfalfa Silage Prepared With The Addition Of Preservatives, Lawrence P. Cadman
Bacteriological Studies Of The Thermoduric Anaerobic And Non-Thermoduric Anaerobic Population Of Alfalfa Silage Prepared With The Addition Of Preservatives, Lawrence P. Cadman
Electronic Theses and Dissertations
Grass silage is an important factor in the livestock industry because it furnishes a high quality succulent feed at a low cost. As it is known today, silage came be made from nearly any grass, legume or cereal crop. The legumes are particularly valuable because the produce a silage which has a high nutritive value. The retention of plant nutrients such as carotene and protein, is of utmost concern in the production of silage. The preservation of these forage nutrients is brought about by the fermentation reaction within the silage mass. The lactic acid bacteria that are found on the …
The Physiology And Some Nutritional Aspects Of A Rumen Bacterium, Norma P. Christopherson
The Physiology And Some Nutritional Aspects Of A Rumen Bacterium, Norma P. Christopherson
Electronic Theses and Dissertations
One of the interesting symbiotic relationships in nature is that existing between the ruminants and their microbial population. This arrangement has solved for them the problem of existing on an herbivorous diet. Most mammals can derive little benefit from the potentially available energy in plant materials, which is locked in the complex, insoluble polysaccharide, cellulose. Cellulase is not a mammalian enzyme, but it is part of the chemical machinery of a number of bacteria, some species of which reside in the rumen. Many different organisms are present and their biochemical activities have not as yet been completely delineated. All of …
Effects Of Urea And Some Other Nitrogen Compounds On Germination Of Wheat, Walter R. Zich
Effects Of Urea And Some Other Nitrogen Compounds On Germination Of Wheat, Walter R. Zich
Electronic Theses and Dissertations
The use of commercial fertilizers has become an accepted practice in American agriculture. Among nitrogenous fertilizers, urea possesses characteristics which make it suitable for use in mixed gods and desirable for direct application to soils requiring only nitrogen. Urea is a concentrated fertilizer usually containing about 45% nitrogen. This high proportion of nitrogen is higher than for any other commercial solid nitrogenous fertilizer material. Often urea is cheaper than other forms of nitrogen per pound of plant food when transportation is an appreciable part of the total fertilizer cost. Although urea may appear to be an ideal nitrogen carrier, it …
A Physiological Study Of Micrococcus Pyogenes Var. Aureus, Delmer H. Koehn
A Physiological Study Of Micrococcus Pyogenes Var. Aureus, Delmer H. Koehn
Electronic Theses and Dissertations
Micrococcus pyogenes var. aureus (Rosenbach) Zoph has been known to man for some time, for it was back in 1878 that Koch noted the presence of micrococci in pus from wounds. in all probability these organisms were Micrococcus pyogenes var. aureus or their very closely related type species Micrococcus pyogenes var. albus. It is very interesting to note relatively small amount of attention paid to this genus after the early taxonomic work was completed, and it was for this reason that this study was undertaken. In the fall of 1953 cases of tonsillitis, laryngitis, or sore throats were quite prevalent …