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University of Arkansas, Fayetteville

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Sulfur Amino Acid Requirements Of Broilers From Two To Five Weeks Of Age, Jill A. Townsend, H. R. (Trey) Pope, Jason L. Emmert Jan 2001

Sulfur Amino Acid Requirements Of Broilers From Two To Five Weeks Of Age, Jill A. Townsend, H. R. (Trey) Pope, Jason L. Emmert

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Phase-feeding (PF) in broiler chickens has been researched as a way to reduce feed costs without reducing growth performance and yield. Predicted amino acid requirements for PF are generated using linear regression equations derived from best estimates of lysine (Lys), sulfur amino acid (SAA), and threonine (Thr) requirements. During the late starter and early grower periods, predicted requirements for the SAA methionine (Met) and cysteine (Cys) are higher than levels recommended by the National Research Council (NRC), and previous research suggests that SAA may be lowered during the grower period without sacrificing growth performance or yield. The objective of this …

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Lagging Behind: Fayetteville’S Historic Architecture, Jennifer Taylor, Jennifer Webb Jan 2001

Lagging Behind: Fayetteville’S Historic Architecture, Jennifer Taylor, Jennifer Webb

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Architecture is a reflection of what is happening in the larger cultural, economic, and artistic scene. Therefore, understanding regional variations in trend adoption is significant to understanding the relationship of Fayetteville, Ark., to the larger national context. Local architecture is a reflection of the citizens of Fayetteville as consumers of popular culture. Simultaneous adoption theory was used as the framework of this study. The project objectives were to 1) document significant architectural styles within designated historical districts and nearby areas, and 2) compare local stylistic trends with national trends to determine fit. Findings indicate that Fayetteville lagged behind the national …

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Development Of The Interactive Broiler Income Spreadsheet, Tara Shofner, H. L. Goodwin Jr. Jan 2001

Development Of The Interactive Broiler Income Spreadsheet, Tara Shofner, H. L. Goodwin Jr.

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The poultry industry has experienced unprecedented increased efficiencies since 1960 in large part due to vertical integration facilitated by production contracts between growers and integrators. As growers seek information about contract production they need to be well informed about all aspects of the process, especially potential income. Recent poultry grower complaints have surfaced as a result of incorrect expense and revenue expectations. The Interactive Broiler Income Spreadsheet (IBIS) is being developed to enable current and prospective poultry producers to better estimate income. IBIS, an unbiased Excel™ spreadsheet tool to assist in decision making regarding broiler production profitability, uses actual grower …

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Vasotocin Receptor Expression In The Brain And Pituitary Gland During The Ovulatory Cycle Of The Fowl, Kelly Shaffer, Jorge A. Vizcarra, John Kirby Jan 2001

Vasotocin Receptor Expression In The Brain And Pituitary Gland During The Ovulatory Cycle Of The Fowl, Kelly Shaffer, Jorge A. Vizcarra, John Kirby

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Vasotocin receptors are members of seven transmembrane spanning G-protein associated receptors. Several isoforms have been recognized in mammals and birds. It has been shown that VT-1 expression occurs primarily in the brain while VT-2 expression occurs mainly in the pituitary. There is no current evidence to support that both VTR-1 and -2 are found in a single tissue. Our goal in this experiment was to see if VT-1 and VT-2 receptor mRNA expression varied in known sites of expression over the period of the ovulatory cycle of broiler breeder hens. In order to study potential changes in VT-1 and VT-2 …

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Peripheral Blood Leukocyte Response And Macrophage Function During Eimeria Adenoeides Infection In Turkey Poults, Amanda D. Drake, Sarah E. Heuer, Timothy G. Kimball, Timothy O. Peters, H. David Chapman, Gisela F. Erf Jan 2001

Peripheral Blood Leukocyte Response And Macrophage Function During Eimeria Adenoeides Infection In Turkey Poults, Amanda D. Drake, Sarah E. Heuer, Timothy G. Kimball, Timothy O. Peters, H. David Chapman, Gisela F. Erf

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Intestinal coccidiosis, caused by various species of Eimeria, is an economically important disease of chickens and turkeys. The peripheral blood leukocyte response and macrophage functions during a coccidial infection in turkeys have not been defined. To examine these aspects of innate immunity during primary Eimeria infection in turkeys, 4-week-old poults were orally inoculated with either 50,000 E. adenoeides oocyst (24 infected poults) or water (24 control poults). To monitor the concentrations and proportions of white blood cells (WBC) throughout the course of infection, heparinized blood was collected from 12 infected and 12 control poults prior to inoculation (day 0), and …

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The Possible Enzymatic Differences Between Cattle And Sheep In Their Response To Ergot Alkaloids, Susan M. Cannon, Charles F. Rosenkrans, Ali Moubarak Jan 2001

The Possible Enzymatic Differences Between Cattle And Sheep In Their Response To Ergot Alkaloids, Susan M. Cannon, Charles F. Rosenkrans, Ali Moubarak

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Ergotamine is an ergot alkaloid associated with fescue toxicosis of livestock who have grazed endophyte-infected fescue. High performance liquid chromatography (HPLC) was used to detect individual or species-specific differences in the metabolism of ergotamine by liver cytochrome P450 of sheep and cattle. Livers were collected from four steers and two sheep. The diet of the steers used in this study consisted of two being fed a grain diet, one steer grazing endophyte-infected fescue, and the final steer grazing endophyte-free fescue. The two lambs were both fed a grain diet. Livers were prepared and examined for the disappearance of ergotamine and …

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Letter From The Dean, Gregory J. Weidemann Jan 2001

Letter From The Dean, Gregory J. Weidemann

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Contents, Discovery Editors Jan 2001

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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University Of Arkansas Catalog Of Studies, 2000-2001, University Of Arkansas, Fayetteville Jan 2001

University Of Arkansas Catalog Of Studies, 2000-2001, University Of Arkansas, Fayetteville

Undergraduate Catalog of Studies

No abstract provided.

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Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 2 2001, Several Authors Jan 2001

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 2 2001, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Intractability And Undecidability In Small Sets Of Wang Tiles, Adam Delisse Jan 2001

Intractability And Undecidability In Small Sets Of Wang Tiles, Adam Delisse

Inquiry: The University of Arkansas Undergraduate Research Journal

Imagine a never-ending checkerboard, red and black squares alternating forever in every direction. Now close your eyes, wait for a second, and open them again. There is still the checkerboard, but is it different? Has somebody moved the checkerboard over two squares? Four squares? One million squares? It still looks the same. This is the nature of periodic tilings. Wang tiles are squares, much like the red and black ones used on a checkerboard, except Wang tiles have colors on their edges instead of on the whole square. Also, Wang tiles can only be put edge-to-edge with each other where …

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Survey Of The Macrobenthic Community In Ferguson Lake, Saline County, Arkansas, John D. Rickett, E. P. (Perk) Floyd Jan 2001

Survey Of The Macrobenthic Community In Ferguson Lake, Saline County, Arkansas, John D. Rickett, E. P. (Perk) Floyd

Journal of the Arkansas Academy of Science

One hundred thirty benthic samples were collected on 33 visits to Ferguson Lake, Saline County, Arkansas, between May 1997 and October 2000. Sediments were visually examined and described, and some were returned to the lab for sediment oxygen demand (SOD) analysis. Fourteen taxa, representing five phyla of invertebrates, were identified. In all samples, oligochaetes, chaoborids, and chironomids comprised the majority of individuals, reaching densities up to 7449, 14,208, and 8783 per m2, respectively. When seasonally grouped, largest total abundances and greatest abundances of most taxa were collected during the winter months (December-February). A minor abundance peak occurred in July due …

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Diet And Territory Size Of Butterflyfish In Habitats With Varying Coral Cover And Composition, Michael Berumen Jan 2001

Diet And Territory Size Of Butterflyfish In Habitats With Varying Coral Cover And Composition, Michael Berumen

Inquiry: The University of Arkansas Undergraduate Research Journal

Given the highly stochastic nature of larval supply, coral reef fish may often settle in sub-optimal habitats with limited prey. This study examines the foraging and territorial habits of a coral feeding butterflyfish, Chaetodon baronessa, living in two contrasting habitats with markedly different coral prey. In exposed front reef habitats, where coral prey was highly abundant, C. baronessa was highly selective in its choice of prey and aggressively maintained small territories. In contrast, in back reef habitats where coral prey was scarcer, C. baronessa was more generalist in its choice of prey, and had larger territories that were only weakly …

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Annual Report, 2001, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering Jan 2001

Annual Report, 2001, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

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Madonna De La Mer: Reflections Of Light And Memory, Amjad S. Faur Jan 2001

Madonna De La Mer: Reflections Of Light And Memory, Amjad S. Faur

Inquiry: The University of Arkansas Undergraduate Research Journal

The Pioneers of photography sought to document their lives with a new sense of reality and permanence. The results have persevered throughout photography's brief history as sparse, elegant, honest and strikingly beautiful images. My research uses late nineteenth century and early twentieth century equipment and techniques to document the timeless beauty, which connects us to those old photographs by creating portraits of people, which will deceive and nurture memory. Without our memories, we respond to the present with only survival instincts. Memory is our pool of reference for all experience. Only two basic elements, light and memory, are used as …

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Inquiry: The University Of Arkansas Undergraduate Research Journal - Volume 2 - Fall 2001, Inquiry Editors Jan 2001

Inquiry: The University Of Arkansas Undergraduate Research Journal - Volume 2 - Fall 2001, Inquiry Editors

Inquiry: The University of Arkansas Undergraduate Research Journal

No abstract provided.

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University Of Arkansas Graduate School Catalog, 2000-2001, University Of Arkansas, Fayetteville Jan 2001

University Of Arkansas Graduate School Catalog, 2000-2001, University Of Arkansas, Fayetteville

Graduate School Catalog of Studies

No abstract provided.

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Arkansas Field Botany (Flora And Vegetation) Bibliography (1988-2000), James H. Peck, C. Theo Witsell, Thomas L. Foti Jan 2001

Arkansas Field Botany (Flora And Vegetation) Bibliography (1988-2000), James H. Peck, C. Theo Witsell, Thomas L. Foti

Journal of the Arkansas Academy of Science

The floristic richness and diversity of vegetation in Arkansas continues to require and stimulate a growing body of taxonomic and ecological research publications. Peck and Peck (1988) listed 766 references, including those of the two prior lists. Since then we have gathered 417 additional references. The total list now contains 1,183 references, with 70% prepared or published since 1970. This update is provided for four reasons: 1) to compile a comprehensive source to direct and facilitate future studies, 2) to provide easier access to many reports not normally located in electronic databases, 3) to improve communications with botanists outside Arkansas, …

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Survey Of Salvinia (Salviniaceae) In Eastern Arkansas, James H. Peck Jan 2001

Survey Of Salvinia (Salviniaceae) In Eastern Arkansas, James H. Peck

Journal of the Arkansas Academy of Science

Salvinia, water spangles, is a genus of 10 species of free-floating heterosporous aquatic ferns with two species introduced to North America. S. minima Baker was introduced into the eastern United States by at least 1814 and occurs mainly across the southeastern United States. S. molesta Mitchell was recognized as a distinct species in the 1970s, was introduced into the United States as a water-garden plant in the 1980s, and has escaped and spread across the southeastern United States in the 1990s. It is recognized by federal agency as noxious aquatic weed. S. minima Baker was discovered in Arkansas in 1998. …

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Food Habits Of The Ouachita Dusky Salamander, Desmognathus Brimleyorum (Caudata: Plethodontidae), In Arkansas, David H. Jamieson, Peter J. Rust, Stanley E. Trauth Jan 2001

Food Habits Of The Ouachita Dusky Salamander, Desmognathus Brimleyorum (Caudata: Plethodontidae), In Arkansas, David H. Jamieson, Peter J. Rust, Stanley E. Trauth

Journal of the Arkansas Academy of Science

No abstract provided.

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Status Of Pet Mountain Lions (Puma Concolor) In Arkansas, D. Blake Sasse Jan 2001

Status Of Pet Mountain Lions (Puma Concolor) In Arkansas, D. Blake Sasse

Journal of the Arkansas Academy of Science

No abstract provided.

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Publication Policies And Suggestions For Authors, Academy Editors Jan 2001

Publication Policies And Suggestions For Authors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

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Redescription Of Eimeria Macyi (Apicomplexa: Eimeriidae) From The Eastern Pipistrelle, Pipistrellus Subflavus (Mammalia: Chiroptera), From Arkansas, Chris T. Mcallister, Steve J. Upton, Stanley E. Trauth, David W. Allard Jan 2001

Redescription Of Eimeria Macyi (Apicomplexa: Eimeriidae) From The Eastern Pipistrelle, Pipistrellus Subflavus (Mammalia: Chiroptera), From Arkansas, Chris T. Mcallister, Steve J. Upton, Stanley E. Trauth, David W. Allard

Journal of the Arkansas Academy of Science

No abstract provided.

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Concert Recording 2001-10-01, Wiff Rudd, Gerald Sloan, Mary Scott Spry, Claudia Burson, Pavel Palanco-Safadit Jan 2001

Concert Recording 2001-10-01, Wiff Rudd, Gerald Sloan, Mary Scott Spry, Claudia Burson, Pavel Palanco-Safadit

Concert Recordings & Programs

Sonata for trumpet and piano. Lento-allegro molto ; Allegretto ; Allegro con fuoco / Eric Ewazen -- The bad and the beautiful / David Raskin -- Melado: Merengue / Pavel Palanco-Safadit -- Trauermusik: Music of mourning. Slow ; With quiet motion ; Animated ; Very slow (chorale): Praise God, from whom all blessings flow / Paul Hindemith -- Solus. Introduction ; Furtively ; Scherzando and waltz ; Fanfare / Stan Friedman -- Divertimento for trumpet, trombone and piano. Allegro ; Andantino ; Presto ; Moderato ; Allegretto ; Quarter-note=54 ; Presto / Boris Blacher

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Desk Set: Ready Reference On The Web, Beth Juhl Jan 2001

Desk Set: Ready Reference On The Web, Beth Juhl

University Libraries Faculty Publications and Presentations

No abstract provided.

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Early History Of The Wolf, Black Bear, And Mountain Lion In Arkansas, Annalea K. Bowers, Leah D. Lucio, David W. Clark, Susan P. Rakow, Gary A. Heidt Jan 2001

Early History Of The Wolf, Black Bear, And Mountain Lion In Arkansas, Annalea K. Bowers, Leah D. Lucio, David W. Clark, Susan P. Rakow, Gary A. Heidt

Journal of the Arkansas Academy of Science

During the nineteenth century settlement of Arkansas, the red wolf (Canis rufos), black bear (Ursus americanus), and mourtain lion (Puma concolor) were not only the three largest and most dangerous predators, they also stirred the imaginations of explorers and settlers. References to these species appeared prominently in the journals of early explorers such as George W. Featherstonhaugh (1844) and Frederick Gerstaecker (1854), and their presence inspired voluminous collections of stories and tall tales. Black bears were so common that a large trade developed in pelts, oil, and other body parts, and Arkansas became commonly known as "The Bear State." Wolves …

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Perceived Damage By Elk In The Arkansas Ozarks, Jennifer H. Herner-Thogmartin, Kimberly G. Smith, Michael E. Cartwright Jan 2001

Perceived Damage By Elk In The Arkansas Ozarks, Jennifer H. Herner-Thogmartin, Kimberly G. Smith, Michael E. Cartwright

Journal of the Arkansas Academy of Science

Wildlife managers in Arkansas are faced with managing a growing population of Rocky Mountain elk (Cervus elaphus neloni) that has extended its range to incorporate private lands near the Buffalo National River (BNR) in northcentral Arkansas. This range expansion has created conflicts between private landowners and wildlife management personnel. To document the extent of damage and assess attitudes of landowners with elk on their land, interviews were conducted with landowners who contacted us or the Arkansas Game and Fish Commission about problems with elk. A survey also was created and sent to landowners who live near the BNR in Boone …

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Life History Of The River Shiner, Notropis Blennius (Cyprinidae), In The Arkansas River Of Western Arkansas, Laura Hudson, Thomas M. Buchanan Jan 2001

Life History Of The River Shiner, Notropis Blennius (Cyprinidae), In The Arkansas River Of Western Arkansas, Laura Hudson, Thomas M. Buchanan

Journal of the Arkansas Academy of Science

The reproductive cycle, food habits, and age and growth of the river shiner, Notropis blennius (Girard), in the Arkansas River of western Arkansas were studied from May 1996 through October 1997. Based on gonadosomatic indices and mean ovumd iameters of females, tubercle development in males, and the first appearance of young-of-year in samples, the breeding season extended from June through August in both 1996 and 1997. The river shiner is a diurnal, generalist feeder that forages on a wide variety of food items. In all four seasons, detritus dominated the diets of adults and juveniles in terms of volume and …

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Breeding Season Distribution Of Cerulean Warblers In Arkansas In The 1990s, Douglas A. James, Christopher J. Kellner, Jan Self, Jerry Davis Jan 2001

Breeding Season Distribution Of Cerulean Warblers In Arkansas In The 1990s, Douglas A. James, Christopher J. Kellner, Jan Self, Jerry Davis

Journal of the Arkansas Academy of Science

The Cerulean Warbler (Dendroica cerulea) has been declining in numbers in its North American nesting range, and the same is true in Arkansas. To provide specific sites that can be monitored in the future, this study describes places where the bird was documented in the state in the 1990s. The warbler was found in mature deciduous forest in both upland and bottomland situations but was most abundant in the upland Ozark forests and uncommon in other regions of the state. Most (70%) of the occupied sites were on federal and state lands. Pattern of overall distribution was essentially the same …

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Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson Jan 2001

Characterization Of A PorosTm-Fumonisin B1 Affinity Column For Isolating Ceramide Synthase From Rat Liver, S. Jernigan, W. B. Melchior Jr., G. R. Jenkins, K. L. Rowland, D. W. Roberts, P. C. Howard, H. Tolleson

Journal of the Arkansas Academy of Science

Fumonisin B1 is a mycotoxin produced by fungi of the genus Fusarium, common pathogens of corn and other grain plants. Toxic effects associated with fumonisin B1 include equine leukoencephalomacia, porcine pulmonary edema, rat renal carcinoma, and murine hepatocellular carcinoma. Increased risk for esophageal cancer in humans has been epidemiologically associated with consumption of corn contaminated with Fusarium, suggesting that fumonisin B1 may be involved. The biological effects of fumonisin B1 exposure result primarily from disruption of de novo sphingolipid biosynthesis via inhibition of ceramide synthase. Exposure of animals or cultured cells to fumonisin B1 results in the characteristic accumulation of …

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