Digital Commons Network^™

Properties Of Corneal Receptors In A Teleost Fish, Paul J. Ashley, Lynne U. Sneddon, Catherine R. Mccrohan

Veterinary Science and Medicine Collection

Corneal receptors have not previously been identified in lower vertebrates. The present study describes the properties of trigeminal ganglion corneal receptors in a teleost fish, the rainbow trout (Oncoryhnchus mykiss). Out of 27 receptors, 7 were polymodal nociceptors, 6 were mechanothermal nociceptors, 2 were mechanochemical receptors and the largest group, 12, were only responsive to mechanical stimulation. No cold responsive receptors were found on the trout cornea. Mechanical and thermal thresholds were lower and receptive field diameters smaller than those of cutaneous trigeminal receptors in the trout, demonstrating greater sensitivity in the cornea. The lack of cold sensitive neurons may …

The Effects Of Suspended Sediment On The Aquatic Organisms Daphnia Magna And Pimephales Promelas, Neil Capper

All Theses

Land use change results in significant amounts of soil migrating into aquatic streams during storm events. This suspended sediment, even in the absence of adsorbed contaminants, may be a significant stressor to aquatic organisms. The data on ecological effects of suspended sediment has mainly focused on salmonids or ecosystem level consequences such as habitat alteration. Few studies have quantified physiologic effects of suspended solids on water column organisms. The purpose of this research was to determine the effects of suspended clay on Daphnia magna and Pimephales promelas. Results of 7 d toxicity tests with D. magna in natural and …

Modified Soy Products And Methods For Reducing Odor And Improving Flavor Of Soy Products, William L. Boatright

Animal and Food Sciences Faculty Patents

A method for reducing odor in soy products and compositions containing soy products by adding or admixing a compound having one or more disulfide bonds to the soy product or composition. The disulfide compound includes a peptide containing at least cystine residue, a peptide or polypeptide containing at least one disulfide bond, L-cystine, D-cystine, DL-cystine and any combination thereof.

The Role Of Natural And Sexual Selection In The Origin And Maintenance Of Divergence Within And Between The Mexican Sailfin Mollies, Poecilia Velifera And P. Petenensis, Shala Hankison

All Dissertations

Understanding speciation remains a holy grail of evolutionary biology. One useful approach is studying the evolutionary mechanisms important in population divergence to infer the mechanisms important in speciation. This method is especially useful when closely related species can be compared to determine whether intraspecific differences parallel interspecific differences. I studied population divergence in two species of Mexican sailfin mollies, Poecilia velifera and P. petenensis. These closely related species are particularly useful for this type of study, as they live in habitats that may differ in the importance of natural selection. In addition, these species may differ in the importance …

Forage Adaptability Trials For Forage And Seed Production In Bolivia; Effect Of 5 Herbicides On 7 Native Utah Forbs, Joshua C. Voss

Theses and Dissertations

The harsh environmental and poor economic conditions of the Bolivian Altiplano require intervention to assist many of those that live there to become economically self-sufficient. We attempted to find introduced dry season reserve forage grasses that could produce enough biomass to be useful as feed for livestock, and that could also produce enough seed to distribute to farmers. While some of the grasses produced reasonable amounts of biomass, none produced seed in quantities that would be even close to being economically viable. The most likely cause of this is that the timing of resources that the grasses need to flower …

A Comparative Study Of The Fractionation Of Regular Buttermilk And Whey Buttermilk By Microfiltration, Pierre Morin, Yves Pouliot, Rafael Jiménez-Flores

Dairy Science

The use of a ceramic microfiltration (MF) membrane for the fractionation of buttermilk and whey buttermilk obtained from pilot scale churning of cream and whey cream from industrial sources has been studied. Whey buttermilk contained comparable amounts of phospholipids compared to regular buttermilk but its protein content was lower due to the absence of caseins. However, it was found that lipid content of whey cream did vary significantly between lots resulting in important variations in the fat content of whey buttermilk. A twofold MF concentration of regular buttermilk doubled its phospholipids content whereas that of whey buttermilk was increased by …

Influence Of Ph And Heat Treatment Of Whey On The Functional Properties Of Whey Protein Concentrates In Yoghurt, Isabelle Sodini, Jerry Mattas, Phillip S. Tong

Dairy Science

Our aim was to investigate how two conditions of whey processing, pH and heat treatment, affect the physical properties of stirred yoghurts fortified to 45 g protein kg⁻¹ with whey protein concentrates (WPC). Cheddar whey was heated at pH 6.4 or pH 5.8 at 72 °C for 15 s, eventually heated further at 82 or 88 °C for 78 s, ultrafiltered, and spray dried. Resulting WPC contained 38% protein; the denaturation level of the whey protein was 10–53%. There were significant (P

Outcomes Of The Wetline Review. The Minister For Fisheries Proposed Decision For The Future Management Of The West Coast And Gascoyne Commercial 'Wetline' Fisheries, Department Of Fisheries Western Australia.

Fisheries management papers

This document details my proposed decisions regarding the new management arrangements for the West Coast and Gascoyne commercial “wetline” fisheries. Before finalising my position on the new management arrangements for these fisheries I invite any final comments on the proposed arrangements set out in this document. Although specific issues have been identified, your views are sought on any or all of the matters in the document of significance to you and/or your group.

Lpe Center News, December 2006

Livestock and Poultry Environmental Learning Center Newsletters

In this issue:

• Integrated Nutrient Management and Limits of the P-Index

• Pathogen Resources Available on the Website

• Quick Start Your Search with Dynamic Bibliographies

• Environmental Management Systems for Agriculture

Karyotypes Of Eight Species Of Leptodactylus (Anura, Leptodactylidae) With A Description Of A New Karyotype For The Genus, Renata Cecília Amaro-Ghilardi, Gabriel Skuk, Rafael O. De Sá, Miguel Trefaut Rodrigues, Yatiyo Yonenaga-Yassuda

Biology Faculty Publications

Karyotypes of eight species of Leptodactylus (Anura, Leptodactylidae) with a description of a new karyotype for the genus. Eight species of the Neotropical genus Leptodactylus were karyologically studied: seven of them (L. gracilis, L. mystacinus, L. petersii, L. pustulatus, L. macrosternum, L. ocellatus, L. labyrinthicus) presented 2n=22 and L. silvanimbus showed a distinctive karyotype with 2n=24. Nucleolar organizer regions (Ag-NORs) were detected in two different pairs of chromosomes: pair 4 at the proximal region of the long arm of one individual of L. mystacinus from São Paulo state and of L. petersii; and …

Genetic Resolution Of The Enigmatic Lesser Antillean Distribution Of The Frog Leptodactylus Validus (Anura, Leptodactylidae), Keneth Yanek, W. R. Heyer, Rafael O. De Sá

Biology Faculty Publications

Leptodactylus validus has an unusual distribution, inhabiting Trinidad, Tobago, and the Lesser Antilles, but not the mainland of South America. This distribution is inconsistent with other distribution patterns observed for these islands. Although slight variation in adult morphology has been observed among the different island populations of L. validus, call data suggest the presence of a single species. Calls of L. pallidirostris from Venezuela and Brazil suggested that this taxon might be conspecific with L. validus. Sequence data from the 12S and 16S mt rDNA genes indicate that L. validus represents a single species throughout its distribution and is conspecific …

Index To Volume 74

Nebraska Bird Review

Index to Volume 74 (11 pages)

Abraham, K. 105

Accipiter sp 28-29, 65

Allmand, Matt 40

American Ornithologists' Union 38, 105, 132-133

Amiotte, Sue 4I, 112

Anhinga 71

Ankney, C. D. 105

Armknecht, Henry 25, 40

Aubushon,
Dottie 25
Kathy 25

Audubon. lohn lames 132-133, 136

Austin, J. E. 97

Avocet, American 48,84, 11 7, 142

....

Yellowlegs,
Greater 48, 85, 117
Lesser 48, 66, 85, 117, 129

Yellowthroat, Common 57,68,92, 125, 131, 142

Vi, Chunhui 25

Young, Betty 25

Zahurones, Penny 25

Ziewitz. J. W. 98

Lincoln Fall Field Days

Nebraska Bird Review

The 2006 NOU Fall Field Days were held in and around Lincoln on Sept. 15-17. Our evening meals and programs took place at the Howard Johnson's Motel on Cornhusker Highway,

Our Friday evening speaker was Dr. Paul Johnsgard, who spoke about the Birding Trails website being developed by a committee of the All Bird Consortium, On Saturday afternoon, NOU Librarian Mary Lou Pritchard gave a tour of the current exhibit of her late husband Bud Pritchard's artwork at the Nebraska State Museum in Morrill Hall. Saturday evening Dan Kim spoke on the Whooping Crane Trust activities along the Platte River …

The Nebraska Bird Review Whole Issue December 2006

Nebraska Bird Review

Table of Contents

Fall Field Report, Aug.–Nov. 2006 by W. Ross Silcock....................... 110

Fall Field Days at Lincoln, Sept. 15–17, 2006....................... 128

The Art and Artistic Legacy of Louis Agassiz Fuertes by Paul A. Johnsgard ....................... 132

The 2006 Nebraska Nest Report by Wayne J. Mollhoff ....................... 142

Index to Volume 74....................... 148

Subscription and Organization Information....................... 159

The Art And Artistic Legacy Of Louis Agassiz Fuertes, Paul A. Johnsgard

Nebraska Bird Review

Perhaps some Nebraska birders will not immediately recognize the name Louis Agassiz Fuertes, as he died almost 80 years ago. Yet he influenced the art of bird painting as much as did John James Audubon, and provided wonderful artwork for many major state bird reference books. He also personally tutored George Miksch Sutton, the Nebraska-born artist and biologist who provided the NOU with its Burrowing Owl logo, and who contributed greatly to American ornithology, especially that of the southern Great Plains.

It is interesting that, like John James Audubon, Roger Tory Peterson, and George Miksch Sutton, we would never think …

Masthead From Nebraska Bird Review December 2006

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $15 in the United States, $18 in Canada and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Mary Lou Pritchard, NOU Librarian, c/o University of Nebraska State Museum, W-436 Nebraska Hall, Lincoln, NE 685880514.

Memberships in the NOU (on a calendar-year basis only): …

The 2006 Nebraska Nest Report, Wayne Mollhoff

Nebraska Bird Review

The drought that began in 1999 continued over most of Nebraska this year, with 7 of the past 8 years receiving lower than normal rainfall. More normal rains fell in April and early May, especially in the central and east, before stopping for most of the summer. Most of the Panhandle and southwest were declared drought disaster areas by early summer, setting the stage in late July for the worst fire season in memory in the Pine Ridge area of the northern Panhandle (Fowler, 2007). Ultimately, 83 of 93 counties were declared part of the drought disaster area. Low water …

Fall Field Report, August-November 2006, W. Ross Silcock

Nebraska Bird Review

First, I want to say how much I appreciate observers' responses to my requests for additional details on various sightings, not just rarities, but early and late dates. It's important to have these details for the archives to help future readers and researchers feel more comfortable with records from our era.

Patterns that were apparent included a generally quiet fall for waterfowl (they were all at Lake McConaughy), but excellent numbers of the rarer two scoters (but NO White-winged!) and a surprising 16 Red-necked Grebes. On the other hand, numbers of staging Western Grebes were down significantly, apparently due to …

Diel And Tidal Rhythms Of Emercenge Events Based On Acousitc Observations In A Shallow Estuary, Mei Sato

Electronic Theses and Dissertations

Field observations of emergence events by epibenthic animals were conducted with two Tracor Acoustic Profiling Systems (TAPS) in the Damariscotta River estuary, Maine, in fall 2005 and summer 2006. Spectral analysis revealed that periodic temporal variability of the acoustic signals was concentrated at four periods. One was the solar day (24 h) and the other three were lunar tidal periods of 25.82 (diurnal or Oi), 12.42 (semidiurnal or M2) and 6.21 h (half the semidiurnal period). The mysid Neomysis americana showed strong nocturnal migration patterns of water-column activity during its peak summer emergence season, regulated by the diel cycle. Toward …

Effects Of Training And Experience On Repeatable And Reliable Assessment Of Beef Cattle Body Condition Scores, Pete Burmeister

Masters Theses & Specialist Projects

In recent years, body condition scores (BCS) have been included in Expected Progeny differences (EPD) calculations for maintenance energy. This experiment was designed to identify the acuteness at which technicians of different skill levels can correctly quantify BCS in beef cattle. Thirteen students enrolled in agriculture at Western Kentucky University were assigned to three experimental technician groups based on training level. Five members of the colligate livestock judging team with extensive cattle backgrounds were BCS trained and assigned to the experienced level, four students were BCS trained by the WKU livestock judging coach and assigned to the trained level, and …

Initial Market Assessment Of The Cultured, Non-Native Oyster C. Ariakensis, Robert A. Fisher

Reports

No abstract provided.

An Evaluation Of The Behavioral Responses Of Cownose Rays (Rhinoptera Bonasus) To Permanent Magnets And Electropositive Alloys, Robert A. Fisher, Eric M. Stroud, Michael M. Herrmann, Patrick H. Rice

Reports

No abstract provided.

Arkansas Animal Science Department Report 2006, Zelpha B. Johnson, D. Wayne Kellogg

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Market Assessment And Feasibility Analysis For Small Scale Aquaculture Development In The Southside Of Virginia Aquaculture Cooperative Feasibility Study, Thomas J. Murray

Reports

No abstract provided.

Evaluating Diet Composition Of Pronghorn In Wind Cave National Park, South Dakota, Christopher N. Jacques, Jaret D. Sievers, Jonathan A. Jenks, Chad L. Sexton, Daniel E. Roddy

The Prairie Naturalist

The pronghorn (Antilocapra americana) was reintroduced into Wind Cave National Park (WCNP), South Dakota, in 1914, and thus, has inhabited the Park for nearly a century. During the 1990's, a decline in the population raised concern for the continued existence of pronghorn inside WCNP; an investigation into the observed decline was initiated. Primary objectives of our study were to evaluate diet composition and forage selection by pronghorn in WCNP. Microhistological analysis was conducted on 58 fecal samples collected opportunistically from pronghorn during 2002. Blue grama (Bouteloua gracilis), common juniper (Juniperus communis), and northern bedstraw …

Spatial And Seasonal Variation In Wildlife-Vehicle Collisions, Jonathan M. Conard, Philip S. Gipson

The Prairie Naturalist

To understand seasonal variation in the number of wildlife-vehicle collisions and the influence of land cover type on collision distribution we counted road-kill carcasses for 84 weeks along a 40 km route on two state highways in northeastern Kansas. We noted land cover type adjacent to each road-kill and tested the null hypothesis that road-kills were distributed randomly with respect to land cover type. Wildlife-vehicle collisions were not distributed randomly in relation to land cover availability. Instead, collisions occurred more often then expected adjacent to riparian areas and less often than expected adjacent to agricultural fields. Wildlife-vehicle collisions varied seasonally …

Amphibians And Reptiles In A Mixed-Grass Prairie In Northwestern North Dakota, Robert K. Murphy, Robert F. Danley, Patricia K. Moore

The Prairie Naturalist

There have been almost no surveys of herpetofauna at 109 km² Lostwood National Wildlife Refuge (LNWR) or surrounding counties in northwestern North Dakota, an area possibly undergoing significant environmental change from fossil fuel extraction and use. We used 30 m drift fences to survey amphibian and reptile species in prairie-wetland transition zones at LNWR during mid-May to early-July in 1985 to 1987, and again in 1999 and 2000. We captured only four amphibian and two reptilian species and noted one other reptilian species incidental to our survey. Several species expected to occur in the area were not detected.

Morphometrics Of Six Turtle Species From South Dakota, Sarah J. Bandas, Kenneth F. Higgins

The Prairie Naturalist

During 2002 and 2003, morphometric measurements were recorded for 755 turtles representing six species in South Dakota. Turtles were captured in a wide variety of wetland habitats across the entire state. With few exceptions, morphometric measurements for South Dakota were near or within the range of measurements reported for all six species from studies in nearby states or provinces. We recommend that morphometric measurements be taken on turtles in future turtle studies and particularly for the less common and rare species.

Derelict Blue Crab Trap Impacts On Marine Fisheries In The Lower York River, Virginia, Kirk J. Havens, Donna Marie Bilkovic, David Stanhope, Kory Angstadt, Carl Hershner, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

In Virginia, an examination of existing derelict trap data retrieved from Chesapeake Bay Multispecies Monitoring and Assessment Program (ChesMMAP) trawl surveys shows the potential effect of derelict traps on fish communities in Virginia waters (Bonzek and Latour 2005). Since 2002, ChesMMAP has attempted to sample 90 stations in the mainstem Chesapeake Bay ranging from the southern edge of the Susquehanna Flats to the Bay mouth in all depths to a minimum of 10 feet during each cruise. There are approximately 4-5 cruises per year and a large mesh bottom trawl is used to capture adult fish of a variety of …

A Comparison Of The Amely Gene Sequence In Argali (Ovis Ammon) And Domestic (Ovis Aries) Sheep, Kimberly Elwood

Undergraduate Honors Capstone Projects

Amelogenin (AMEL) is a gene responsible for tooth bud development. It is located on the X-chromosome, thus called AMELX, in mammals. AMEL has been shown to be present in fish, amphibians, and reptiles, though the exact location on the chromosome has not been determined. Amelogenin-like gene (AMELY), an AMEL homolog encoded on the Y-chromosome in some mammals, including sheep, cattle, deer, bears, humans, and some primates, is shorter than the sequence on the X-chromosome. It is unknown whether AMELY is transcriptionally active, but it has been found to be useful for human sexing purposes in forensics, archaeology and prenatal diagnosis, …