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Nebline, January 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Is your house healthy?
Landscaping the front yard
Humidity in home effects plants too
Amaryllis — Save that bulb for next year
Air layering tropical plants
Got the winter itches? Read this and itch some more
The giving tree
Swarming ants in the middle of winter?
Winter bubbles
Area producers planning to shift production to value-added grains
Pesticide Applicators Training
Grain check can save crop
Nebraska Conservation Trees Program
Selecting trees and shrubs
Pruning windbreak trees
Fertilizing trees
Providing water for winter birds
A safe kitchen
Healthy Eating
What to do if your power goes off: freezer/refrigerator guidelines
Focus on …

Tws Wildlife Damage Management Working Group Newsletter: Spring/Summer 2000 – Volume 7(2)

TWS Wildlife Damage Management Working Group Newsletter

Forward - Scott Craven; Jack H. Berryman Institute Announces The Winners Of Its 1999 Awards; TWS Nashville 2000 Symposia, Workshop, And Special Poster Sessions; Application For Membership / The Wildlife Society

Asian Carp Management And Control Workshop

National Invasive Species Council

The U.S. Fish & Wildlife Service’s Columbia Fishery Resources Office and Region 6 Aquatic Nuisance Species Coordinator co-hosted an Asian Carp Workshop in St. Louis, Missouri on April 19-20, 2000 to initiate the process of gathering input for the development of a Mississippi River Basin Asian Carp Management and Control Plan. The goal of the workshop was to review status, distribution, biology; ecological and economic benefits and impacts of four Asian carp species and identify management and control alternatives to reduce or mitigate these impacts.

Fifty-eight participants from state and federal natural resources agencies, universities and research facilities along with …

Soil Quality Assessment After Weed-Control Tillage In A No-Till Wheat–Fallow Cropping System, T. A. Kettler, Drew J. Lyon, John W. Doran, W. L. Powers, Walter W. Stroup

Panhandle Research and Extension Center

Adoption of reduced-tillage fallow systems in the western USA is limited by winter annual grass weeds such as downy brome (Bromus tectorum L.). Moldboard plowing is an effective means of controlling downy brome in winter wheat (Tritcum aestivum L.)–fallow systems. The purpose of this study was to assess the influence of plowing and secondary tillage operations, for the purpose of weed control, on soil quality attributes of a silt loam soil that had been cropped in a subtill or no-till (NT) winter wheat–fallow system for more than 20 yr. Compared with undisturbed NT, downy brome populations in plowed …

Animal Science Alumni Newsletter, Winter 2000

Department of Animal Science: Departmental News

Contents:

From the Department Head's Desk
Irv Omtvedt Retires After Many Years of Service With the University of Nebraska
New Faculty
Faculty Retirements
Graduate Program
Undergraduate Program
Judging Pavilion Fades From UNL Campus
Bud Britton Animal Science Golf Classic
Alumni Newsletter Receives Award
Earl Ellington Pleased With New College in Costa Rica
Deaths
Emeriti Update
Faculty Leave
Officers for Fall 2000
Recent Department Awards and Recognitions
Animal Science Leadership
Alumni News
Your Newsletter Committee
Call for Information for the Year 2001 Issue of the Animal Science Alumni Newsletter

American Burying Beetle (Nicrophorus Americanus) Recovery Plan, Christopher Raithel

Endangered Species Bulletin

Current Species Status: Nicrophorus americanus, formerly distributed throughout temperate eastern North America, now persists in only two widely separated natural populations: a small but apparently stable population on Block Island off the coast of Rhode Island, and a lower-density but more widespread population in eastern Oklahoma. In addition, three laboratory colonies are being maintained, and in 1990 and 1991, about 90 N. americanus were reintroduced to historical habitat on Penikese Island, Massachusetts. Based on the drastic decline and extirpation of the species over nearly its entire historical range, the American burying beetle was listed as endangered in July 1989. …

Megapodes Status Survey And Conservation Action Plan, 2000-2004, René W. R. J. Dekker, Richard A. Fuller, Gilliam C. Baker, World Pheasant Association, Birdlife International, Iucn-Ssc Megapode Specialist Group

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Executive Summary

This Action Plan covers the megapodes, a group of Australasian ground-dwelling birds comprising 22 species found from the Nicobar Islands in the west, through Indonesia, the Philippines, and Australia, to Polynesia in the east. Their habit of nesting on or near beaches, often on small islands, makes them vulnerable to disturbance and egg collecting, and several species are greatly threatened. In 1995, the first Action Plan for the conservation of these species was published and this document provides an update on the current situation. The objectives of this document are to identify the most threatened species within this …

The Virtues Of "Command And Control" Regulation: Barring Exotic Species From Aquatic Ecosystems, Sandi Zellmer

Nebraska College of Law: Faculty Publications

The Clean Water Act asserts the ambitious goal of eliminating water pollution and protecting the chemical, physical, and biological integrity of U.S. waters. Yet the EPA, in enforcing the Act, currently exempts from regulation a significant source of pollution in U.S. waters: ballast-water discharges from commercial shipping vessels. Ballast water from commercial vessels is a primary vector for the introduction of exotic plant and animal species into U.S. waters. The invasion of these species poses an increasing threat to native biodiversity; the invaders prey directly on native fish and wildlife, compete for food and habitat, and introduce disease and parasites …

Conserving Ecosystems Through The Secretarial Order On Tribal Rights, Sandi Zellmer

Nebraska College of Law: Faculty Publications

American Indian nations successfully manage habitat for wildlife species on reservation lands through tribal law and through traditional cultural practices. Beyond reservation boundaries, many tribes are involved in managing wildlife habitat through cooperative management agreements with federal and state agencies. Tribes do this because wildlife is important to them for cultural, economic and religious reasons, not because they are required to do so by the Endangered Species Act (ESA), 16 U.S.C. $§ 1531-1544. Nevertheless, the ESA looms over Indian Country like the sword of Damocles: While the Act contributes to the conservation of tribal wildlife resources by imposing federal penalties …

Department Of Veterinary And Biomedical Sciences: 2000 Annual Report

School of Veterinary and Biomedical Sciences: Information and History

Foreword, 2000 John A . Schmitz. Professor and Department Head
Veterinary and Biomedical Sciences Personnel
Faculty Profiles
Teaching program
Research program
Extension Program
Nebraska Veterinary and Diagnostic Laboratory Systems
Grants and Contracts Funded or Active in 2000
Patents by VBMS Faculty in 2000
Publications by VBMS Faculty in 2000
Presentations by VBMS Faculty in 2000
Articles Regarding the Department in 2000
Selected Committees, Editorial and Other Appointments of VBMS Faculty
Departmental Budget Summaries
Nebraska Agricultural Statistics 1999

‘Gene Shaving’ As A Method For Identifying Distinct Sets Of Genes With Similar Expression Patterns, Trevor Hastie, Robert Tibshirani, Michael B. Eisen, Ash Alizadeh, Ronald Levy, Louis Staudt, Wing C. Chan, David Botstein, Patrick Brown

United States Public Health Resources

Background: Large gene expression studies, such as those conducted using DNA arrays, often provide millions of different pieces of data. To address the problem of analyzing such data, we describe a statistical method, which we have called ‘gene shaving’. The method identifies subsets of genes with coherent expression patterns and large variation across conditions. Gene shaving differs from hierarchical clustering and other widely used methods for analyzing gene expression studies in that genes may belong to more than one cluster, and the clustering may be supervised by an outcome measure. The technique can be ‘unsupervised’, that is, the genes and …

Interleukin-1 Polymorphisms Associated With Increased Risk Of Gastric Cancer, Emad M. El-Omar, Mary Carrington, Wong-Ho Chow, Kenneth E. L. Mccoll, Jay H. Bream, Howard A. Young, Jesus Herrera, Jolanta Lissowska, Chiu-Chin Yuan, Nathaniel Rothman, George Lanyon, Maureen Martin, Joseph F. Fraumeni Jr., Charles S. Rabkin

United States Public Health Resources

Helicobacter pylori infection is associated with a variety of clinical outcomes including gastric cancer and duodenal ulcer disease¹. The reasons for this variation are not clear, but the gastric physiological response is influenced by the severity and anatomical distribution of gastritis induced by H. pylori. Thus, individuals with gastritis predominantly localized to the antrum retain normal (or even high) acid secretion², whereas individuals with extensive corpus gastritis develop hypochlorhydria and gastric atrophy³, which are presumptive precursors of gastric cancer4. Here we report that interleukin-1 gene cluster polymorphisms suspected of enhancing production of interleukin-1-beta …

Lessons Learned In Applying The U.S. Epa Proposed Cancer Guidelines To Specific Compounds, Melvin E. Andersen, M. Elizabeth Meek, Gary A. Boorman, David J. Brusick, Samuel M. Cohen, Yvonne P. Dragan, Clay B. Frederick, Jay I. Goodman, Gordon C. Hard, Ellen J. O'Flaherty, Denise E. Robinson

United States Public Health Resources

An expert panel was convened to evaluate the U.S. Environmental Protection Agency’s “Proposed Guidelines for Carcinogen Risk Assessment” through their application to data sets for chloroform (CHCl₃) and dichloroacetic acid (DCA). The panel also commented on perceived strengths and limitations encountered in applying the guidelines to these specific compounds. This latter aspect of the panel’s activities is the focus of this perspective. The panel was very enthusiastic about the evolution of these proposed guidelines, which represent a major step forward from earlier EPA guidance on cancer-risk assessment. These new guidelines provide the latitude to consider diverse scientific data …

Hyperphosphorylation Of The Asialoglycoprotein Receptor In Isolated Rat Hepatocytes Following Ethanol Administration, Benita L. Mcvicker, Dean J. Tuma, Carol A. Casey

United States Public Health Resources

Ethanol administration leads to altered function and impaired receptor-mediated endocytosis of the hepatocyte asialoglycoprotein receptor (ASGP-R). The purpose of the present study was to examine the effects of ethanol on the phosphorylation of the ASGP-R to determine whether this post-translational modification could contribute mechanistically to the observed ethanol-induced alterations. The methodological approach of this work involved the measurement of the phosphorylation state of the receptor obtained from isolated rat hepatocytes, using a combination of experimental designs from the biosynthetic incorporation of phosphate to the determination of steady-state phosphotyrosine levels. We report here that both short-term (1- to 2-week) and chronic …

Genetic Characterization Of H3n2 Influenza Viruses Isolated From Pigs In North America, 1977–1999: Evidence For Wholly Human And Reassortant Virus Genotypes, Alexander I. Karasin, Melissa M. Schutten, Lynn A. Cooper, Catherine B. Smith, Kanta Subbarao, Gary A. Anderson, Suzanne Carman, Christopher W. Olsen

United States Public Health Resources

Since 1998, H3N2 viruses have caused epizootics of respiratory disease in pigs throughout the major swine production regions of the U.S. These outbreaks are remarkable because swine influenza in North America had previously been caused almost exclusively by H1N1 viruses. We sequenced the full-length protein coding regions of all eight RNA segments from four H3N2 viruses that we isolated from pigs in the Midwestern U.S. between March 1998 and March 1999, as well as from H3N2 viruses recovered from a piglet in Canada in January 1997 and from a pig in Colorado in 1977. Phylogenetic analyses demonstrated that the 1977 …

Lessons Learned In Applying The U.S. Epa Proposed Cancer Guidelines To Specific Compounds, Melvin Andersen, M. Elizabeth Meek, Gary Boorman, David Brusick, Samuel Cohen, Yvonne Dragan, Clay Frederick, Jay Goodman, Gordon Hard, Ellen O'Flaherty, Denise Robinson

United States Public Health Resources

An expert panel was convened to evaluate the U.S. Environmental Protection Agency’s “Proposed Guidelines for Carcinogen Risk Assessment” through their application to data sets for chloroform (CHCl₃) and dichloroacetic acid (DCA). The panel also commented on perceived strengths and limitations encountered in applying the guidelines to these specific compounds. This latter aspect of the panel’s activities is the focus of this perspective. The panel was very enthusiastic about the evolution of these proposed guidelines, which represent a major step forward from earlier EPA guidance on cancer-risk assessment. These new guidelines provide the latitude to consider diverse scientific data …

Exposing The "Pretty Woman" Myth: A Qualitative Examination Of The Lives Of Female Streetwalking Prostitutes, Rochelle L. Dalla

Department of Child, Youth, and Family Studies: Faculty Publications

Intensive interviews were conducted with 43 women involved in streetwalking prostitution. Data were analyzed according to Phenomenological Descriptive Analysis, results of which are presented in two parts. Detailed accounts of the lives of a subgroup of 5 participants are described first, followed by a broader discussion of results including the entire sample of 43. Themes common across the larger group are presented in three segments, including (a) early development, (b) life in "the game,” and (c) leaving the streets. Implications for advocacy and further research are presented.

Role Of Transforming Growth Factor-Α And The Epidermal Growth Factor Receptor In Embryonic Rat Testis Development, Elena Levine, Andrea S. Cupp, Linda Miyashiro, Michael K. Skinner

Department of Animal Science: Faculty Publications

Embryonic testis development requires the morphogenesis of cords and growth of all cell populations to allow organ formation. It is anticipated that coordination of the growth and differentiation of various cell types involves locally produced growth factors. The current study was an investigation of the hypothesis that transforming growth factor- α (TGF-α) is involved in regulating embryonic testis growth. TGF-α has previously been shown to function in the postnatal testis. TGF-α and other members of the epidermal growth factor (EGF) family act through the epidermal growth factor receptor (EGFR) to stimulate cell proliferation and tissue morphogenesis. To understand the potential …

Rapid Communication: Porcine Vitamin D-25-Hydroxylase Maps To Chromosome 5, Daniel C. Ciobanu, R. K. Raven, M. F. Rothschild, N. H. Bell

Department of Animal Science: Faculty Publications

Locus Name. Vitamin D-25-hydroxylase.

Species. Sus scrofa.

Locus Symbol. CYP25.

Source of Primers. PCR primers were designed from the published sequence for porcine vitamin D-25-hydroxylase (CYP25) cDNA (GenBank accession no. Y16417). The position of the forward and reverse primers corresponds to 506 to 530 bp and 830 to 854 bp, respectively, of the cDNA. The primer pair amplified a 348-bp fragment of the cDNA and an 862-bp fragment from the pig genomic DNA. The 862-bp fragment (Gen- Bank accession no. AF284378) was subcloned into a pNoTA vector and identity was confirmed by sequencing. Genomic sequences from 1 to 74, …

Crop Watch No. 2000-05, April, 14, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Briefs..........42

Plant Pathology Changes..........42

Drought Update..........43

Alfalfa, Clover Weevils..........44

Preemergence Weed Control Strategies..........46

Avoiding Developing of Resistant Weeds..........47

Spartan Approved..........48

USDA Resources..........48

Crop Watch No. 00-11, May 26, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates..........90

Corn Rootworms..........92

ECP Moth Flight..........92

Replant Option..........93

Wheat Tour..........93

Late Alfalfa..........94

Barley Yellow Dwarf..........95

Spring Black Stem..........95

Soybean Development..........96

Corn Insect Guide..........97

Seed Coating..........98

Crop Watch No. 2000-17, July 21, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Grape, Small Fruit Field Day..........146

Field Update..........146

Mobile Nurseries Detect New Dry Bean Rust Races..........148

Plant and Pest Clinic Update..........148

Two Fungicide Options for Bean Rust..........149

Haskell Ag Lab Field Day..........149

Check Corn Roots..........150

Crop Watch No. 2000-19, August 4, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates..........161

Drought, Climate Assessment..........163

Strategic Irrigation..........164

Soybean Field Days..........166

Biotech Field Day..........166

Crop Update..........166

Dry Bean Field Day..........167

Diagnostics Report..........167

Sustainable Ag Tours..........168

Crop Watch No. 2000-22, September 15, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Crop Updates..........190

Market Journal Monday..........191

Avoiding Wheat Diseases..........192

Late Season Irrigations..........193

Nitrogen Stalk Test..........194

Crop Condition..........194

Clean, Treat Bins..........195

Aerating Stored Grain..........196

Diagnostic Clinic Update..........196

Wheat Planting Issues..........197

Bovine Blastocyst-Derived Trophectoderm And Endoderm Cell Cultures: Interferon Tau And Transferrin Expression As Respective In Vitro Markers, Neil C. Talbot, Thomas J. Caperna, J. Lannett Edwards, Wes Garrett, Kevin D. Wells, Alan D. Ealy

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Continuous cultures of bovine trophectoderm (CT-1 and CT- 5) and bovine endoderm (CE-1 and CE-2) were initiated and maintained on STO feeder cells. CT-1 and CT-5 were derived from the culture of intact, 10- to 11-day in vitro-produced blastocysts. CE-1 and CE-2 were derived from the culture of immunodissected inner cell masses of 7- to 8-day in vitro-produced blastocysts. The cultures were routinely passaged by physical dissociation. Although morphologically distinct, the trophectoderm and endoderm both grew as cell sheets of polarized epithelium (dome formations) composed of approximately cuboidal cells. Both cell types, particularly the endoderm, grew on top …

Similarity And Divergence Among Viruses In The Genus Furovirus, Yukio Shirako, Nobuhiro Suzuki, Roy C. French

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Nucleotide sequences of RNAs 1 and 2 of a Japanese strain of soil-borne wheat mosaic virus (SBWMV), the type species of the genus Furovirus, and sorghum chlorotic spot virus (SCSV) were determined from cloned cDNA. The relationship among the Japanese and US strains of SBWMV, SCSV, oat golden stripe virus (OGSV), and recently proposed Chinese wheat mosaic and European wheat mosaic viruses (CWMV and EWMV) were examined at the nucleotide and amino acid levels. Pairwise comparisons of genome-encoded proteins among the six viruses showed that the US strains of SBWMV and CWMV were the most closely related pair in RNA …

Computer Model For Simulating Population Dynamics Of The Predator Lyctocoris Campestris (Heteroptera: Anthocoridae) In Stored Shelled Corn, James E. Throne, Megha N. Parajulee, Thomas W. Phillips

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

A computer model for simulating population dynamics of Lyctocoris campestris (F.), a predator of stored-product insects, was developed using data from the literature and newly collected data for adult longevity and fecundity. Immature development time and survival, adult longevity, fecundity, and cannibalism were simulated. The model was validated at ambient environmental conditions during three seasons in Wisconsin. The model accurately simulated development of the predator feeding on larvae of the Indianmeal moth, Plodia interpunctella (Hubner) (Lepidoptera: Pyralidae), in the validation studies. The model will be useful in optimizing mass-rearing and augmentative releases of this predator for biological control of stored-product …

Basic Biotechnology, Jennifer Flak, Julie Albrecht

Plant and Soil Sciences eLibrary

An introduction to traditional cross-breeding and genetic engineering of plants, and to biotechnology.

Objectives - Basic Biotechnology

After completing Nutrition Basic Biotechnology, participants should be able to:

• Describe one similarity between traditional cross-breeding and genetic engineering of plants.
• Give two limitations that are encountered with traditional cross-breeding of plants.
• Explain why genetic engineering is not limited in the same way as traditional cross-breeding.
• Define biotechnology in broad terms.
• List three plant applications of biotechnology.
• List the three areas of nutritional profiles that have been improved with biotechnology.

Modules:

• Lesson home
• Objectives - Basic Biotechnology
• Historical Uses of Biotechnology
• Basic Understanding …

2000 Nebraska Beef Cattle Report

Nebraska Beef Cattle Reports

Cow/Calf
Age of Calf at Weaning of Spring-Calving Beef Cows and the Effect on Production Economics
Supplementing Metabolizable Protein to Yearling Heifers Grazing Winter Range
Refinement of the MGA/PGF Synchronization Program for Heifers Using a 19-Day PGF Injection
Replacement Heifer Development Programs
Copper Levels and Sources in Pre- and Post-calving Diets of First-Calf Cows

Growing
Effects of Length of Grain Feeding and Backgrounding Programs on Beef Carcass Characteristics
Compensatory Growth Response and Breakeven Economics of Yearling Steers on Grass
Evaluation of the 1996 Beef Cattle NRC Model Predictions of Intake and Gain for Calves Fed Low or Medium Energy Density …

Refinement Of The Mga/Pgf Synchronization Program For Heifers Using A 19-Day Pgf Injection, Gene H. Deutscher, Rex Davis, Dave Colburn, Doug O'Hare

Nebraska Beef Cattle Reports

A two-year study was conducted on 240 yearling heifers to refine the MGA/ PGF synchronization program by using a 19-day PGF injection. All heifers were fed MGA for 14 days and received PGF injection on either Day 17 or Day 19 after the MGA period. Heifers were heat detected and bred by AI using semen from one sire. The Day 19 PGF injection caused a higher (16%) percentage of heifers to cycle by 72 hours after injection, a higher (6%) percentage of heifers to cycle during the 5-day breeding period, and higher pregnancy rates in 5 days (8%) and in …