Life Sciences Commons^™

A Study On Some Production Traits And Egg Quality Characteristics Of Japanese Quail, Ahmet Nazligül, Kenan Türkyilmaz, Hüsnü Erbay Bardakçioğlu

Turkish Journal of Veterinary & Animal Sciences

This investigation was carried out to demonstrate some production traits and egg quality characteristics of Japanese quails (Coturnix coturnix japonica). One hundred female quails were used in the study. The experiment was carried out for six months. Egg production, egg weight, feed consumption and some egg quality characteristics were taken into consideration. Egg quality characteristics were measured at 8-24 weeks of age. Average egg production (% HD) at 8, 12, 16, 20 and 24 weeks of age was 20.5, 33.8, 63.7, 73.8 and 72.5 respectively. Average egg weight (g) and daily feed consumption (bird/feed/day) at 8, 16 and 24 weeks …

Patch-Clamp Analysis Of Voltage-Activated And Chemically Activated Currents In The Vomeronasal Organ Of Sternotherus Odoratus (Stinkpot/Musk Turtle), D. A. Fadool, M. Wachowiak, J. H. Brann

Biology: Faculty Publications and Other Works

The electrophysiological basis of chemical communication in the specialized olfactory division of the vomeronasal (VN) organ is poorly understood. In total, 198 patch-clamp recordings were made from 42 animals (Sternotherus odoratus, the stinkpot/musk turtle) to study the electrically and chemically activated properties of VN neurons. The introduction of tetramethylrhodamine-conjugated dextran into the VN orifice permitted good visualization of the vomeronasal neural epithelium prior to dissociating it into single neurons. Basic electrical properties of the neurons were measured (resting potential, -54.5 +/- 2.7 mV, N=11; input resistance, 6.7 +/- 1.4 G Omega, N=25; capacitance, 4.2 +/- 0.3 pF, N=22; means +/- …

An Enzymatic Method For The Measurement Of Magnesium, Joseph Murphy

Theses

Magnesium is quantitatively the most important intracellular divalent cation (4), and has been found to serve in a wide range of enzymatic reactions (2). Studies have shown that up to ten percent of hospital patients may have hypomagnesaemia (6).

Atomic absorption spectrophotometry (AAS) under highly specified conditions is the de facto reference method for magnesium measurement but only about ten per cent of laboratories routinely use this method (4). This is because AAS is time-consuming, requires specialised equipment and a certain level of expertise, and may be hazardous due to the use of inflammable gases. Colourimetric methods e.g. calmagite are …

Influence Of Short-Term Endurance Exercise Training On Heart Rate Variability, Clarence Matthew Lee

LSU Doctoral Dissertations

The purpose of this investigation was to determine if 8 exercise endurance training (ET) sessions over 2 weeks significantly alters cardiac autonomic modulation, as measured by heart rate variability (HRV). Twenty-four college-aged males were recruited for this study and were randomized into either an exercise group (EX; n=12) or a control group (CT; n=12). EX underwent 2 weeks of ET on a cycle-ergometer (frequency: four times/week; duration: 40 minutes; intensity 80-85% HRreserve), whereas CT was instructed not to alter their previous level of physical activity. Five-minute ECG tracings were collected for HRV under the following conditions: 5 minutes of paced …

The Time-Course Of Vascular Adaptations Following Localized Short Term Exercise Training, Jason David Allen

LSU Doctoral Dissertations

This is a series of 3 experiments in the area of vasoreactivity. The first study investigated the stability and reproducibility of brachial artery flow-mediated dilation (BAFMD). Twenty-six healthy volunteers underwent 3 scans on 2 days, performed by 2 ultrasonographers, and analyzed by 2 readers. All subjects were tested between 7 and 11am after refraining from food and exercise. Average baseline diameter was 3.48±0.53mm, which increased to 3.71±0.57mm (6.58±4.15%) at peak dilation. ICCC's for days, testers and readers were 0.9188, 0.9394, and 0.8982 respectively. To detect a difference in vasoreactivity of 60% (two-tailed), e.g. 5% vasodilation versus 8% vasodilation, at 90% …

Physics Scores As Predictors Of The Medical College Admissions Test, Isabelle D. Cherney, Michael G. Cherney

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Assessment tools used in a physics course were evaluated in terms of their predictive ability of student performance on the medical colleges admissions test (MCAT) physical sciences subtest. In particular, using regression and correlational analyses, relationships between the exams, final exam, overall semester scores, quiz scores, lab scores, paper score, and the MCAT scores on the physical sciences subtest were analyzed. The strongest correlations with the subtest scores existed with those tools that assessed analytical abilities. Specifically, the score on a comprehensive, multiple-choice final exam provided a single tool that can serve as an effective predictor of the subtest score. …

Pumpkinseed Population Characteristics In Nebraska Sandhills Lakes (Pisces, Centrarchidae: Lepomis Gibbosus), Jennifer C. Harrington, Craig P. Paukert, David W. Willis

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

We investigated pumpkinseed (Lepomis gibbosus) population characteristics in Nebraska Sandhills lakes because this region is near the southwestern edge of their native range. Pumpkinseeds were in low abundance (1.3-7.5 stocklength [i.e., ≥ 8 cm] fish per trap net night) and were collected from only seven of 30 lakes sampled. No preferred length (i.e., ≥ 20 cm) pumpkinseeds were collected in any of the seven lakes. Pumpkinseed relative weight (Wr) was positively related to bluegill (Lepomis macrochirus) and yellow perch (Perea flauescens) Wr, suggesting that high condition of pumpkinseed was not detrimental to condition of …

Comparative Floristic Diversity Of Spring Creek And Nine-Mile Prairies, Nebraska, Kay Lynn Kottas

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Spring Creek Prairie (SCP), in Lancaster County, Nebraska, was purchased by Audubon Nebraska in 1998 and is being restored for educational purposes and scientific study. It is a remnant tallgrass prairie of247 ha (610 acres) that was grazed for a century but never plowed. The research was conducted to obtain baseline information about diversity and abundance of upland species, for assessment of management practices. Specimens were collected from September, 1998, through October, 2000, and an inventory was produced. These data were compared with similar data from Nine-Mile Prairie (NMP), a nearby and essentially ungrazed virgin tallgrass prairie that is now …

Genomic Regions That Underlie Soybean Seed Isoflavone Content, K. Meksem, V. N. Njiti, W. J. Banz, M. J. Iqbal, My. M. Kassem, David L. Hyten, J. Yuang, T. A. Winters, D. A. Lightfoot

Department of Agronomy and Horticulture: Faculty Publications

Soy products contain isoflavones (genistein, daidzein, and glycitein)that display biological effects when ingested by humans and animals, these effects are species, dose and age dependent. Therefore, the content and quality of isoflavones in soybeans is a key to their biological effect. Our objective was to identify loci that underlie isoflavone content in soybean seeds. The study involved 100 recombinant inbred lines (RIL)fr om the cross of ‘Essex’ by ‘Forrest,’ two cultivars that contrast for isoflavone content. Isoflavone content of seeds fromeach RIL was determined by high performance liquid chromatography (HPLC). The distribution of isoflavone content was continuous and unimodal. The …

Release Of Cotesia Flavipes Cameron For Biological Control Of Cereal Stemborers In Two Ecological Zones In Mozambique, D. Cugala, W. A. Overholt, L. Santos, D. Giga

All Peer-Reviewed Publications

Cotesiaflavipes Cameron (Hymenoptera: Braconidae), a gregarious larval endoparasitoid of Cliilo parleUus (Swinhoe) (Lepidoptera: Crambidae) and other stemborers in the Indo-Australian region, was released in Mozambique for the first time in 1996. Before its release, countrywide surveys on stemborers and their natural enemies were conducted in several places. However, all led to the same conclusion: that Ch. partellns was the most abundant stemborer at the majority of locations, and that the rate of larval parasitism was very low (< 5 %). To evaluate the effect of stemborer species composition on- the establishment of Co. flavipes, two releases were made at two agroecologically different sites during the 1998/1999 and 1999/2000 growing seasons. Cotesiaflavipes was recovered from all the three stemborer species found at each site during the season of release and a year later. However, the rates of parasitism were very low, ranging from 0.6 to 1.9 % on Cli. partellus, 3.2 % on Sesamia calamislis Hampson (Lepidoptera: Noctuidae) and 2.6 % on Busseolafiisca Fuller (Lepidoptera: Noctuidae). The native natural enemy, Cotesia sesamiae (Cameron) (Hymenoptera: Braconidae) was the most common larval parasitoid at the two sites. The recoveries of Co. flavipes during the release period and a year later indicate that this exotic parasitoid has become established at the two locations in the southern and central regipns of Mozambique, in spite of differences in stemborer species composition. However, it is too early to evaluate the impact of Co.flai'ipes on the stemborer populations. © 2001 ICIPE.

Cereal Stemborer Species Complex And Establishment Of Cotesia Flavipes Cameron In Eastern Uganda, T. Matama-Kauma, S. Kyamanywa, J. A. Ocwang, C. O. Omwega, H. R. Willson

All Peer-Reviewed Publications

Studies were conducted in two districts of eastern Uganda from 1997 to 1999 to introduce and monitor the establishment of an exotic parasitoid, Cotesia flavipes Cameron (Hymenoptera: Braconidae), for the control of the stemborer Chilo partellns (Swinhoe) (Lepidoptera: Pyralidae), and also to determine the stemborer species complex in maize and sorghum. The study confirmed the presence of four important stemborers, two pyralids Ch. parlellus and Eldana saccharina Walker and two noctuids, Busseola fusca Fuller and Sesamia calamistis Hampson. Chilo partellus was dominant, constituting 53-88% of stemborers found followed by B.fiisca at 8-37 %. The most abundant local parasitoid was the …

Cloning Of Hsds Gene And Characterization Of The Protein From Haemophilus Influenzae Rd, Srividya Chalapatti

Seton Hall University Dissertations and Theses (ETDs)

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Annual Review Of The World Pheasant Association 2000/2001, World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

President's message, Keith C. R. Howman

Chairman of Trustees' report, Richard P. Howard

Treasurer's annual report and accounts, Ian F. Hoggarth

Conservation Committee report, Philip J. K. McGowan

Strategic Development Committee report

Chapters and Affiliate reports

Pheasant Specialist Group report, Peter J. Garson

Partridge, Quail and Francolin Specialist Group report, John P. Carroll

Grouse Specialist Group report, Ilse Storch

Megapode Specialist Group report, René W. R. J. Dekker and Darryl N. Jones

Cracid Specialist Group report, Daniel M. Brooks

The new Conservation Breeding and Aviculture Group for WPA in the United Kingdom, Garry Robbins, Mike Cook, and Keith Chalmers-Watson

Frontal …

Invasion Of Mouse Fibroblasts And Macrophages By Human Isolates Of Agrobacterium, Karmon Leigh Kriechbaum

Honors Theses

In the past few decades there has been growing evidence that species of Agrobacterium can be opportunistic animal pathogens. One of these species is Agrobacterium tumefaciens, which for years has been studied as a plant pathogen. The results of one published experiment suggested that an Agrobacterium toxin could kill mice (12). Other strong evidence for Agrobacterium as an opportunistic human pathogen is the over fifty published clinical cases in which humans were infected by Agrobacterium species (3, 13-25). In almost all of these cases the patient was immunocompromised in some way and they often had an invasive procedure such as …

Traversing The Internet For Useful Information, Julie Walker, Kory Bierle

Animal Science Faculty Publications

In the fast pace livestock industry producers are looking for information that can give them an edge in a timely manner. Never before has so much information been at our fingertips. The Internet is an excellent tool that can be used for obtaining good research-based information. The type of information available on the Internet is endless. Daily, weekly and yearly reports such as market reports can be found on free sites as well as private sites. When questions arise the Internet can be a resource finder. In addition, e-mail allows you to communication with individuals on your time schedule. Obtaining …

Variation In Lipophorin Titres During Development In Solitarious And Gregarious Schistocerca Gregaria (Forskàl) (Orthoptera: Acrididae), D. O. Ogoyi, E. O. Osir

All Peer-Reviewed Publications

The levels of lipophorin, the principal insect haemolymph lipoprotein, were estimated during the development of solitary and gregarious phases of Schistocerca gregaria using single radial immunodiffusion. In the gregarious phase, lipophorin titres ranged from 6.69 ±0.57 mg/ml in the 3rd nymphal instar to 14.42 ±2.04 mg/ml in mature adults. The titres in the solitary phase were 3.33 ± 0.59 mg/ml in the 3rd nymphal instar and 8.44 + 0.67 mg/ml in mature adults. Peak lipophorin titres occurred in mature adults (14.42 ±2.04 mg/ml) and 5th nymphal instar (8.75 ±0.25 mg/ml) for gregarious and solitary locusts, respectively. Gregarious locusts had significantly …

An Example Of Developing Food Based Dietary Guidelines, John M. Kearney, Michael Gibney

Conference Papers

No abstract provided.

Short-Term Temporal And Spatial Dynamics Of Bacterioplankton Near Barbados In The Caribbean Sea, Keun-Hyung Choi, Fred C. Dobbs, Robert K. Cowen

OES Faculty Publications

To investigate temporal (ca 1 mo) and spatial dynamics of bacterioplankton in the Caribbean Sea, time-series measurements of chlorophyll a concentration, bacterial abundance, and thymidine incorporation rate were performed at 6 stations near Barbados, In addition, a series of incubation experiments was carried out with seawater samples collected from various depths and stations to determine bacterial growth rates and removal rates by bacterivory. Vertically integrated phytoplankton and bacterioplankton biomasses averaged 1290 and 1200 mg C m(-2), respectively, and heterotrophic bacterial production was 106 mg C m(-2), with in situ bacterial growth of 0.1 d(-1), Approximately halfway through the sampling period, …

Yield-Per-Recruit Analysis For Black Drum, Pogonias Cromis, Along The East Coast Of The United States And Management Strategies For Chesapeake Bay, Cynthia M. Jones, Brian K. Wells

OES Faculty Publications

Black drum, Pogonias cromis along the U.S. East Coast is subject to commercial and recreational harvest. However, prior to this study no modeling had been undertaken to examine the potential for overfishing in the Chesapeake Bay region. We present evidence from yield-per-recruit models that growth overfishing of black drum is unlikely under current fishing practices in this region. Particular attention was given to fishing practices in the Chesapeake Bay region where old, large fish predominate in the commercial and recreational catches (mean age=26 years: mean total length=108.4 cm; mean weight 22.1 kg). Yield-per-recruit model results showed that growth overfishing was …

Top-Down Impact Through A Bottom-Up Mechanism. In Situ Effects Of Limpet Grazing On Growth, Light Requirements And Survival Of The Eelgrass Zostera Marina, Richard C. Zimmerman, Diana L. Steller, Donald G. Kohrs, Randall S. Alberte

OES Faculty Publications

Temporal changes in abundance, size, productivity, resource allocation and light requirements of a subtidal eelgrass (Zostera marina L.) population were followed for 2 yr after the September 1993 appearance of a previously rare oval form of the commensal limpet Tectura depicta (Berry) in Monterey Bay, California, USA, By exclusively targeting the epidermis, limpet grazing impaired photosynthetic performance but left respiratory demand, meristematic growth and more than 90 % of the leaf biomass intact, The resulting low P:R ratios of grazed plants raised the light requirements for the maintenance of positive carbon balance almost 2-fold relative to healthy ungrazed plants …

Iron In East Antarctic Snow: Implications For Atmospheric Iron Deposition And Algal Production In Antarctic Waters, Ross Edwards, Peter N. Sedwick

OES Faculty Publications

To evaluate the deposition and solubility of aerosol iron in the Antarctic seasonal sea ice zone (SSIZ), iron was measured in snow samples collected from three areas in the SSIZ (Prydz Bay, Dumont d'Urville Sea and Ross Sea) and one continental area (Princess Elizabeth Land) of East Antarctica. Concentrations of total-dissolvable iron (that soluble at pH ~2) ranged from 20-2950 pg g^-1, with the lowest concentrations measured in snow from the Dumont d'Urville Sea. Using estimates of snow accumulation rates, we calculate atmospheric iron deposition fluxes of 0.017-0.11 mg m^-2 yr^-1(0.30-2.0 μmol m^-2 yr …

Resilience And Recovery Of Coral Reefs From Large-Scale Disturbances: Contrasting Patterns For San Salvador Island, Bahamas, And Belize, Paulette Peckol, Benjamin J. Greenstein

Arts & Sciences Faculty Publications

Coral cover and diversity are declining while macroalgal abundance is increasing in most Caribbean coral reef systems. Although a complex interaction of natural and anthropogenic disturbances is likely causal, the effects of a specific disturbance may vary dramatically for different reef systems. The coral reefs off the coasts of San Salvador Island, Bahamas and Belize, considered to be in relatively good condition, recently experienced near-direct hits by Hurricanes Floyd (1999) and Mitch (1998), respectively. In addition, NOAA scientists indicated that during 1998, tropical sea surface temperatures (SSTs) reached their highest levels above the normal annual maximum for this past century. …

Taphonomic Evidence For Late Pleistocene Transitions In Coral Reef Community Composition, San Salvador, Bahamas, Thomas A. Rothfus, Benjamin J. Greenstein

Arts & Sciences Faculty Publications

Over the past 20 years, the composi­ tion of Caribbean coral reef communities has changed drastically. The ecology of modern reefs, however, has only been studied since the late 1950's. Thus, only a thirty year data set on changes in coral community composi­ tion exists with which to assess the current faunal transition. The need for longer term data has been recognized by marine ecologists as essential for determining whether the cur­ rent transition is part of a long tenn cycle or itself is an unprecedented phenomenon.

On Telephone Pole Reef, San Salva­ dor, Bahamas, a transition from Acropora cer­ …

Renal Function In Suckling And Fasting Pups Of The Northern Elephant Seal, Dorian S. Houser, Daniel E E. Crocker, Paul M. Webb, Daniel P. Costa

Arts & Sciences Faculty Publications

Elephant seals fast for prolonged periods without access to water. This is made possible, in part, by reductions in urine production. However, the mechanisms involved in reducing urine production are not understood. In this study, glomerular filtration rate (GFR) was measured in five northern elephant seal pups (Mirounga angustirostris) via the inulin clearance technique. Measurements were made during day 9 and day 18–22 of nursing and the second and eighth week of the postweaning fast. Plasma aldosterone and cortisol concentrations, quantified by radioimmunoassay, were measured in eight other weanlings during the second and eighth week of the fast. …

Group Viii Spiroplasma Of Costa Rica, Kimberly M. Stewart

College of Graduate Studies: Theses & Dissertations (1964–2006)

Spiroplasma bacteria isolates are classified or identified through a series of serological tests that normally consists of screening, one-way deformation tests, cloning, antisera production, and reciprocal deformation tests. Serological tests on the spiroplasmas are followed by molecular analysis. The standard molecular analysis used for spiroplasmas has been 16S rRNA sequencing. The primary goal ofmy research was to evaluate serologically Group VIII spiroplasmas isolated from tropical Costa Rican tabanids (Diptera: Tabanidae) and to compare them to the temperate North American Group VIII spiroplasmas. A secondary goal was to evaluate both the temperate and tropical Group VIII strains by sequencing the 16S-23S …

Determining The Termination Percentage Of Heart Rate Maximum For Submaximal Testing, Julia A. Valentour

College of Graduate Studies: Theses & Dissertations (1964–2006)

BACKGROUND: In the Fourth Edition of the American College of Sports Medicine's Guidelines for Exercise Testing and Prescription (1991). the protocol for the ACSM's submaximal bike test was to terminate the test at 65-70% of the age predicted maximal heart rate. In the Fifth Edition, this was changed to 85% of the age-predicted maximal heart rate.

OBJECTIVES: The purpose of this study was to find out, by using the ACSM submaximal cycle ergometer test (see Appendix A) if the 85% heart rate maximum termination provides a more accurate estimate of maximal aerobic capacity than the 70% heart rate maximum termination. …

The Prevalence Of Human Granulocytic Ehrlichiae In Ixodes Scapularis Ticks In Southeastern Georgia, Heather Anne Merten

College of Graduate Studies: Theses & Dissertations (1964–2006)

Human granulocytic ehrlichiosis (HGE) is a newly emerging, tick-borne zoonosis in North America. The agent that causes HGE is very similar to Ehrlichia phagocytophilia and Ehrlichia equi, but has yet to be classified as a separate species.

This study was carried out in order to determine the prevalence rate of HGE infection in blacklegged ticks (Ixodes scapularis) in insular and mainland sites in southeastern Georgia using nested PCR techniques. Four locations were studied representing 2 barrier islands and 2 mainland sites. We hypothesized that areas that have low levels of human disturbance and are somewhat isolated will …

A Comparative Study Of The Reproductive Biology Of Sympatric Morning Glories (Ipomoea-Convolvulaceae), Dexter R. Sowell Ii

College of Graduate Studies: Theses & Dissertations (1964–2006)

Despite the astounding diversity of flowering plants and of mobile organisms that serve as pollinators, sympatric co-flowering plants can potentially share pollinators with each other. This places two selection pressures on plants. First, plants compete for pollinators to visit their flowers and secondly, entice pollinators to be faithful (specialized) and visit only other members of their species. I tested whether sympatric co-flowering plants reduced their selection pressures via temporal partitioning or differential attraction of pollinators using six closely related, sympatric co-flowering morning glories (Ipomoea-Convolvulaceae).

Diurnal flower phenology tightly overlapped, which did not facilitate temporal partitioning of pollinators. However, …

The Reliability And Validity Of The Pacer For 3rd And 4th Grade Males, Jennifer A. Hinely

College of Graduate Studies: Theses & Dissertations (1964–2006)

BACKGROUND: FITNESSGRAM recommends the use of the PACER, a 20-meter shuttle run, to assess the aerobic ability of children in physical education classes.

OBJECTIVES: To examine the reliability and validity of the PACER for 3rd and 4th grade males. In addition, the reliability and validity of the criterion-referenced standards will be examined.

METHODS: 22 students ran 3 trials of the FITNESSGRAM PACER while wearing the Cosmed K4b2 system.

RESULTS: From the 22 students, the intraclass correlation for the number of laps for trial 2 to trial 3 was 0.81. The reliability of the estimated VO2 from trial 2 to trial …

The Relationship Between Jealousy And Self-Esteem In Collegiate Athletes, Paula M. Parker

College of Graduate Studies: Theses & Dissertations (1964–2006)

Previous research has found contradictory results when examining the possible relationship between jealousy and self-esteem (Guerrero & Afifi, 1998, Mathes & Severa, 1981; Mikulincer, Bizman, & Aizenberg, 1989, Peretti & Pudowski, 1997; Stewart & Beatty, 1985; White, 1981). Jealousy has been most often researched in romantic relationships (Peretti & Pudowski, 1997; Salovey & Rodin, 1986) and social comparison situations (Bers & Rodin, 1984, Mikulincer, Bizman, & .Aizenberg, 1989). Few studies have examined jealousy in an athletic setting. Sport jealousy has received little attention because until recently, there was no reliable instrument to measure jealousy in sport. Pease (1987) investigated the …