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The Effect Of Nitrogen And Phosphorus Fertilization On Grayson Lake, Kentucky, Timothy W. Spier

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Timothy W. Spier on July 31, 1995.

Nebline, July 1995

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Horticulture

Rural $ense

Family Living

4-H & Youth

Environmental Focus

Community & Leadership Development

Extension Calendar

Expanded Food and Nutrition Education Program (EFNEP)

Nebraska Association for Family and Community Education News

and other extension news and events

Grasslands: An Introduction, Kathleen H. Keeler

Great Plains Quarterly (through 2013)

"Grasslands" was the subject of the seventeenth annual symposium of the Center for Great Plains Studies, held at the University of Nebraska-Lincoln, in April 1994. Grasslands are so basic to the Great Plains experience as to be invisible. If you stand here in eastern Nebraska, it is so far in any direction across grasslands to any other landscape (a cornfield is a planted grassland, after all) that the role of grasslands in our lives does not seem worth considering. Local variation is much more visible. You can't see the prairie for the grasses, to adapt the idiom. And yet, grasslands …

Louisiana Agriculture Magazine, Summer 1995, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Trophic Transfer Of Fatty Acids, Sterols, And A Triterpenoid Alcohol Between Bacteria, A Ciliate, And The Copepod Acartia Tonsa, Melissa C. Ederington, George B. Mcmanus, H. Rodger Harvey

OES Faculty Publications

The incorporation of lipids into the copepod Acartia tonsa and its eggs was measured when it was fed either a bacterivorous ciliate (Pleuronema sp.) or a diatom (Thalassiosira weissflogii). Egg production was 10-fold higher on the diatom diet, whereas hatch success of eggs was the same for algal and ciliate diets. Adult copepods fed diatoms contained more total fatty acid and sterols than copepods fed the ciliate diet, and individual lipids reflected the dietary source. Eggs from diatom-fed copepods had fewer fatty acids but more sterols than eggs from copepods on a ciliate diet. Ciliate-fed copepods and …

Use Of Colloidal Gold And Neutron Activation In Correlative Microscopic Labeling And Label Quantitation, B. J. Darien, P. A. Sims, K. T. Kruse-Elliott, T. S. Homan, R. J. Cashwell, A. J. Cooley, R. M. Albrecht

Scanning Microscopy

Albumin was conjugated to 16 nm gold particles (Alb-Au16) and infused into anesthetized pigs to determine if plasma, tissue and bronchoalveolar lavage (BAL) fluid concentrations of gold could be quantitated by neutron activation (Au198). Additionally, transmission electron microscopy (TEM) of lung and liver samples was evaluated for sites of gold distribution and morphological changes. The minimum concentration of gold detected by neutron activation ranged between 1.4 and 1.9 ppb (ng/gm of sample). No gold was detected in the plasma of pigs prior to Alb-Au16 infusion, while mean post infusion concentrations were 1.037 ± 0.69 ppm (μg/gm plasma, ±SD). The concentrations …

Agricultural Research Division 109th Annual Report 1995

Agricultural Research Division: News and Annual Reports

It is a pleasure to provide the 109th Annual Report of the University of Nebraska Agricultural Research Division (ARD). This report contains lists of current faculty, visiting scientists, and research associates; active research projects; refereed journal articles, books, and book chapters published; theses and dissertations written; germplasm/cultivars released; and awards received by faculty and graduate students. Also included are brief descriptions of accomplishments from selected research projects, information about the programmatic distribution of resources, and the financial report for the period July 1, 1994, to June 30, 1995. This report was compiled in compliance with the intent of the law …

The Interaction Of Laser Energy With Ureter Tissues In A Long Term Investigation, U. Stratmann, K. Schaarschmidt, R. R. Lehmann, A. Heinze, G. H. Willital, E. Unsold

Scanning Microscopy

This study investigates tissue responses after laser irradiation of the rabbit ureter, which serves as an experimental model for rectourogenital fistulae of children. Twenty-five rabbit ureters were irradiated intraluminally by a Nd:YAG laser 1320 nm (2 Watt, 20 seconds and 3 Watt, 8 seconds) via an applicator with radialsymmetrical light distribution. Immediately, 2 weeks, 4 weeks, 8 weeks, and 16 weeks after irradiation, the ureters were X-rayed with contrast solution and prepared for light and transmission electron microscopy. For the parameters employed, no apparent morphological differences could be observed. Immediately, the central laser zone showed a transmural therrnonecrosis prevailed by …

Nebline, June 1995

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Horticulture

Rural $ense

Family Living

4-H & Youth

Environmental Focus

Community & Leadership Development

Extension Calendar

Expanded Food and Nutrition Education Program (EFNEP)

Nebraska Association for Family and Community Education News

and other extension news and events

Ard News June 1995

Agricultural Research Division: News and Annual Reports

CONTENTS:
COMMENTS FROM THE DEAN
GRANTS AND CONTRACTS RECEIVED APRIL AND MAY, 1995
PROPOSALS SUBMITTED FOR FEDERAL GRANTS
ARD ADVISORY COUNCIL ELECTION RESULTS
DR. CHRIS R. CALKINS SELECTED FOR LEADERSHIP DEVELOPMENT COURSE
NEW NU FOUNDATION ENDOWMENTS MANAGED BY ARD
IANR STRATEGIC PLAN
LICENSING INTELLECTUAL PROPERTY
THE EXCELLENCE IMPERATIVE: LEADERSHIP IN THE LAND GRANT SYSTEM

The Nutritional Knowledge, Food Choices, And Exercise Habits Of Students At Langston University, Preston Solomon

McCabe Thesis Collection

The nutritional knowledge, food choice, and exercise habits of an individual determine his or her overall health and life expectancy. Information on these topics enables nutrition educators to develop strategies to improve knowledge and to tailor educational efforts which affect a large number of persons. Poor health in America today is an ever present reality. Heart disease, cancer, diabetes mellitus, cerebrovascular diseases, renal diseases, and pulmonary diseases are causes of death related in part to lack of nutritional knowledge and poor eating and exercise habits. A few of these diseases are chronic in nature and are the most deadly.

The …

An Economic Study Of The Relative Profitability Of Alfalfa Production And Marketing Practices, David Claycomb

Masters Theses & Specialist Projects

The seasonality of the price of alfalfa hay in Kentucky was studied as well as the potential cost or profitability of storage of this hay. Economic comparison of alfalfa hay production to other farm enterprises was carried out. In addition, an estimate of the value of two qualities of alfalfa hay was calculated based on 1991 prices. The analysis of 41 years of marketing data demonstrated significant differences (P<.01) in price with seasonal lows in June/July and a steady increase in price to a high in March. In general (based on $100 per ton hay and 12% interest) the alfalfa hay producer could lose from $5 to $10 storing hay and selling at a later date. There were some specific conditions where he might have realized a return to storage of $0.16 to $1.48 per ton. A further evaluation of average (KY Feeder) and good (KY Pride) quality hays indicated that current prices of $70-$75 and $100 per ton respectively were the prices where a dairyman would be able to include this hay in the cow's total diet. Even with problems of quality and quantity of alfalfa hay, the economic returns to the production of alfalfa hay were favorable when compared to other crops in Kentucky with the additional benefit of alfalfa being a crop that can result in reduced soil erosion from sloping land. Returns above variable costs can be from $120 to $400 per acre depending upon yield and sale price. However, an understanding of seasonality of price as well as storage costs need to be considered by alfalfa hay producers to assure realizing the above returns.

Aluminum, Georgia C. Lauritzen

All Archived Publications

This publication addresses the risks involved with using aluminum.

Cytological And Molecular Analyses Of The Ns Genome In Russian Wildrye, Psathyrostachys Juncea (Fisch.), Junzhi Wei

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Russian wildrye (Psathyrostachys juncea Fisch. 2n=2x=14, NsNs) is an important forage grass and a potentially useful germplasm in wheat improvement. A standard C-banding karyotype of Ps. juncea has been developed based on the C-bands of chromosomes in geographically diverse materials. Although there are C-banding polymorph isms, the seven pairs of chromosomes can be distinguished from each other according to their basic banding patterns. Based on C-banded karyotype, one deletion-translocation heterozygote, four primary trisomies, one double-deletion trisomic, and two tertiary trisomies were identified. These cytogenetic stocks will be useful in genetic studies of Russian wildrye.

Genetic variations in Russian wildrye were …

Muscle Fiber Types, Dna:Rna:Protein Ratios, And Measures Of Tenderness In Various Muscles Of Normal And Callipyge Lambs, Owen D. Rice

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An inherited muscle hypertrophy in sheep is caused by the callipyge gene (CLPG) located on ovine chromosome 18. It has been suggested that this gene is a single autosomal dominant gene. Animals expressing the callipyge gene show increased muscling in the pelvic and torso regions of the body and, thus, have been given the phenotype- descriptive name callipyge (from Greek calli-beautiful; pyge-buttocks). In this study 21 wether lambs, the offspring of callipyge rams (genotype CLPG /clpg) and normal Rambouillet ewes (genotype clpg/clpg), were used to determine the differences in muscle fiber type percentages, composition, and tenderness between normal …

The Effects Of Feeding Chelated Metal Proteinates On Milk Production And Reproductive Performance In Holstein Dairy Cows, Ben James Hardcastle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-two primiparous Holstein heifers were allocated to one of two treatments. Treatments consisted of: 1) basal ration plus 226.8 g inorganic mineral supplement (control); and 2) basal ration plus 226.8 g inorganic mineral and metal proteinate supplement (50:50). Individual heifer performance was measured during the final 10 weeks of the prepartum period. Feed intake and refusals were recorded daily. Individual heifer body weights recorded weekly did not differ significantly. Blood samples taken at 4-week intervals did not differ in plasma concentration between treatments. Calf birth weights for control heifers were not significantly higher than calves from the treatment heifers.

The …

Membrane Protein As A Basis Of Nacl Tolerance In Alfalfa, Husni N. Sabah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study sought to determine whether NaCl altered the plasma membrane proteins in alfalfa exhibiting differential NaCl concentrations, and whether CaSO₄ modified the responses. Two alfalfa cultivars, Centurion and Condor, were grown in 0.5 strength Hoagland solution in a greenhouse. The cultivars were exposed to 0, 88, and 132 mM of NaCl alone and mixed with CaSO₄ ⋅ H₂O at 7 and 14 Mm CaSO₄ for 3, 9, and 60 days.

In experiment 1, roots were dried to determine their Na, Ca, K, and Mg concentration. The results were similar to previous reports in which …

The Analysis Of Genetically And Physiologically Complex Traits Using Ceratopteris: A Case Study Of Nacl-Tolerant Mutants, Thomas R. Warne, Dale L. Vogelien, Leslie G. Hickok

Faculty Articles

Genetic and physiological complexities associated with salt tolerance in plants have limited progress in the analysis of specific factors responsible for the salt-tolerant phenotype. We have used the homosporous fern Ceratopteris richardii as a model plant to investigate the physiological basis of salinity tolerance by selecting single gene mutants that confer tolerance in the gametophyte generation. The unique genetic system of homosporous ferns permits the generation of mutants in a genetic background nearly isogenic to the wildtype, such that comparative studies with the wildtype can identify specific physiological responses associated with salt tolerance. One of these mutations, stl2, confers …

Effects Of Homogenization And Ultra-High Temperature Processing On The Properties Of Whole Milk Concentrated By A Multiple-Membrane Separation System, Chien-Ti Chang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three different concentrated whole milks (2.5x, 2.75x, and 3.0x) were produced by mixing equal parts of ultrafiltration retentate of whole milk and reverse osmosis retentate of the UF milk permeate. The concentrated whole milks were ultra-high temperature processed by direct steam injection (140.6°C) followed by flash cooling and two-stage homogenization pressures (2500/500 psi, 3500/700 psi, or 4500/900 psi). The milk concentrates were packaged aseptically and stored at room temperature. On the other hand, the milk concentrates produced by the RO single membrane system with the same concentration levels served as the control. Physicochemical properties of the milks were surveyed every …

Improved Control Of Cheese Manufacture Through Continuous Vat Monitoring Of Coagulation Parameters Using The Hot Wire Method, Michael John Lefevre

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The hot wire method, with pH and temperature sensors, was evaluated to determine its usefulness and application for cheese production automation. Coagulation of milk substrate was measured with the hot wire instrument and by four other methods: Formagraph, Brookfield®, vixcometer, Omnispec™ bioactivity monitor, and Sommer and Matsen rolling bottle method. The hot wire, using the time at maximum slope, detected coagulation before methods that measure resistance to shear, and after methods that measure light reflectance. Coagulation time was not significantly different from the industry standard rolling bottle method used by Sommer and Matsen. the hot wire instrument was also used …

The Effect Of Iron Fortification On The Chemical, Physical, And Sensory Properties Of Mozzarella Cheese, Wendy Haws Rice

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mozzarella cheese was made from milk fortified with iron so that the cheese contained 25 and 50 ppm iron. Iron was added to the milk in three ways: (1) complexed to casein (ferric-casein), (2) complexed to whey protein (ferric-whey protein), and (3) ferric chloride (FeCl3·6H20) added directly to milk. Cheese quality was determined by chemical, physical, and sensory characteristics and compared with a control cheese.

Chemical oxidation, during 28 days storage, was determined by absorbance of malondialdehyde at 535 nm using the thiobarbituric acid assay (TBA). Physical properties were assessed by the Arnott test for melt, helical viscometer for stretch, …

Effects Of Iron Fortification On Microbiological, Physical, Chemical, And Organoleptic Properties Of Yogurt, Sharareh Hekmat

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It has been shown that iron binds strongly to the proteins in milk, and our aim was to determine whether or not this binding was affected by lowering pH in the manufacture of yogurt. Iron-protein complexing was studied using two different techniques. 1) Skim milk was fortified with 10 mg iron/100 ml and the pH of the milk was adjusted to 6.7, 6.2, 5.8, 5.3, 4.5, and 4.0. The milk was fractionated by ultracentrifugation at 52,000 x g for 60 minutes. The pellets and serum were then analyzed for iron, calcium, and phosphorus content by inductively coupled plasma spectroscopy. SDS-PAGE …

Conjunctival Impression Cytology Assessment Of Vitamin A Status Of Migrant Children, Laura Nihan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Subclinical vitamin A deficiency was assessed in 65 Hispanic children attending four migrant Head Start programs in Utah. Subjects aged 2 to 6 years (median 3 years 10 months) were examined for evidence of vitamin A deficiency by conjunctival impression cytology. Biochemical indices for serum vitamin A, retinol-binding protein, zinc, and iron were performed.

Of eight children (12.5%) with subclinical vitamin A deficiency, one child had a marginal serum vitamin A of 11 μg/dl. Retinol-binding protein concentrations were significantly lower in two subjects with abnormal conjunctival impression cytology. Serum zinc, which when low can mimic signs of ocular vitamin …

Effects Of Graded Levels Of Dietary Lasalocid On Performance Of Holstein Cows During Early Lactation, Dennis E. Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Thirty-six multiparous Holstein cows were assigned to one of three dietary levels of lasalocid· 0, 180, or 360 mg/hd/d in a completely randomized design Cows were assigned to treatments 1 wk postcalving and remained on treatment until 11 wk postcalving Basal diets were composed of ground corn, alfalfa hay, alfalfa haylage, corn silage, and soybean meal, fortified with vitamins and minerals as needed. All ingredients were ground and fed as a total mixed ration Daily rations were fed in two equal portions at 0500 and I 700 h at a rate to allow a 5- 10% refusal. Daily measurements included …

Evaluation Of Milk Production In Western Whiteface And Navajo-Churro Ewes, Marla Faye Brindley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Western Whiteface and Navajo-Churro Ewes, two types of sheep present in the Intermountain West, were compared for their milk production ability. Amount of milk produced per individual and the group milk composition were analyzed for butterfat, lactose, somatic cell count, protein, calcium, and phosphorous.

Ewes were fed ad libitum alfalfa hay and had access to free-choice grain while in the milking parlor. Lambs were weaned at 35 d of age and removed to another holding area and placed on creep feed . Ewes were milked for 90 d following the weaning of the lambs.

Western Whiteface ewes had a much …

Effects Of Antioxidants On Development Of In Vitro Fertilized Bovine Embryos, Bret L. Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Free radicals are short-lived molecules that can cause decreased embryonic development in vitro. Antioxidants are molecules that block free radical formation or guard against their harmful effects. Many studies have linked exposure of media to light and culturing of embryos in high (20%) oxygen concentrations to free radical production. Some of the antioxidants used in culture media are superoxide dismutase (SOD), catalase, zinc (II), ethylenedinitrilo tetraacetic acid (EDTA), mannitol, vitamin E, dimethyl sulfide, and taurine. Most research involving antioxidants and embryonic development has been conducted on non-farm animals, particularly mouse and rabbit. Studies have shown that antioxidants in vitro culture …

Behavioral Characteristics Affect Habitat Selection Of Domestic Ruminants, Cody B. Scott

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

I evaluated some of the factors affecting livestock distribution by conducting experimental (Chapters II and III) and observational (Chapter IV) studies. In Chapter II, I described the effect of locations of familiar foods and social interactions on choice of feeding location by lambs. Lambs were exposed to a pasture as subgroups of strangers and companions with different dietary habits (i.e., three lambs that preferred milo with three lambs that preferred wheat). Milo was placed on one end and wheat on the other, about 100 m apart. Strangers typically fed in different locations, reflecting dietary preferences. Conversely, companions fed in both …

Program Abstracts, 107th Session, Iowa Academy Of Science, April 21-22, 1995, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Cropwatch No. 95-6, April 21, 1995, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Moss in stock tanks ........ 38

Corn planting dates ........ 39

Soil moisture ................... 39

Treating nightshade ........ 40

Late herbicides ................ 41

Kansas wheat .................. 41

Soil temperatures ............ 42

The Annual Meeting Of The Iowa Academy Of Science April 21-22, 1995 [Program, 107th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 5
General Session Speakers --- 8
Awards --- 11
Symposia Programs --- 12
Poster Session14
Map --- Centerfold
Section Programs/Special Sessions --- 17
Agricultural Sciences --- 17
Anthropology --- 17
Botany --- 19
Cellular & Molecular Biology --- 20
Chemistry, Inorganic --- 21
Chemistry, Organic --- 23
Conservation --- 24
Engineering --- 25
Geology --- 27
Physics --- 29
Physiology/Zoology --- 29
Psychology Linguistics --- 30
Science Teaching --- 31
Annual Meeting Committee --- 33
Local Arrangements Committee --- 33
IAS Officers & Directors --- 34
Future Meetings --- 34