Digital Commons Network^™

G1374 Escherichia Coli: Testing For Process Control Verification,, Mindy Brashears, Dianne Peters

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide was developed to help processors correctly perform carcass sampling in meat and poultry operations and interpret the results.

In July 1996, the U.S.D.A. published the Final Rule on Pathogen Reduction for meat and poultry processing facilities. Its goal is to reduce the occurrence of food-borne pathogens in meat and poultry products. The rule requires carcass sampling for "generic" E. coli in meat and poultry slaughter operations. The U.S.D.A. has developed guidelines for acceptable, marginal and unacceptable amounts of E. coli to be used by the processor to determine if their process is controlling microbial hazards. If E. coli …

Spatial Variation In Density, Mean Size And Physiological Condition Of The Holarctic Amphipod Diporeia Spp. In Lake Michigan, Thomas F. Nalepa, David J. Hartson, Jennifer Buchanan, Joann F. Cavaletto, Gregory A. Lang, Stephen J. Lozano

United States Department of Commerce: Staff Publications

1. We examined spatial patterns in population characteristics (density, biomass, mean body length) and physiological condition (lipid content, length-weight) of the amphipod Diporeia spp. in Lake Michigan by collecting samples at up to 85 sites in late summer 1994 and 1995. Variables were examined relative to water depth and three lake regions: south, central and north. Most major river systems are found in the south, and this region is more nutrient-enriched compared to the north.

2. Over all sites, mean density was 5240 m^-2, biomass was 4.1 g dry wt m^-2, and mean body length was …

Center For Grassland Studies Newsletter, Winter 2000, Volume 6, No. 1

Center for Grassland Studies: Newsletters

Contents:

Genetically Enhanced Turfgrasses Where Are We Going? by Terrance Riordan, Department of Horticulture, University of Nebraska-Lincoln

NUBEEF Educational Web Site for Beef Producers by Rick Rasby, Department of Animal Science, University of Nebraska-Lincoln

Bison Symposium in Lincoln April 6-8

CGS Welcomes Laurice Matulka

GLCI Lists Benefits of Grazing Lands

Glickman Calls for National Commitment to Preserve Private Land

Nebraska Ranch Practicum Again Offered

2000 Nebraska Range Short Course by Lowell Moser, Department of Agronomy, UNL

Technology Spurs Alfalfa Genome Mapping

Field Trip Graduate Course Focuses on East Coast Ecology

April 1 Deadline for Abstracts: National Conference on Grazing Lands

Faculty Response To The Report Of A Comprehensive Issues Review

Southeast Research and Extension Center: Reports and Administration

The Review Team supports the planning process that was utilized by the Faculty/Staff to identify and define issues for this review. We support the continuance of issue teams in Southeast Nebraska. We will not name the teams but leave that to the faculty and Dr. Cantrell to determine. We endorse the identification of program coordinators to head the teams. It is our suggestion that Dr. Cantrell and the identified program coordinators clearly define these roles in job descriptions, and plan for an ongoing communication between the district administration and the teams. It probably goes without saying, but we would like …

Courses In Post Secondary Teaching For Students Of Tomorrow

Professional and Organizational Development Network in Higher Education: Conference Materials

Agricultural Leadership, Education and Communication ALEC 805: Schedule of Topics and Assignments

Advanced Teaching Strategies: Case Study Analysis

Advanced Teaching Strategies: Course Learning Objectives

Nf00-426 Rhizopus Head Rot Of Sunflower, Robert M. Harveson

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses the increase in sunflower production and the potential for diseases.

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 …

Unopa Notes, Volume 39, Issue 3, October 2000

UNOPA: Newsletters

No abstract provided.

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

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. 2000-10, May 19, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates..........80

Stalk Borer Scouting..........81

Weeds in Soybeans..........82

Frosted Wheat..........83

Assessing Wheat Damage..........84

Corn Leaf Beetles..........85

Purple Loosestrife..........86

Wheat Diseases/Insects..........88

ECB Light Traps..........88

Crop Watch No. 2000-14, June 23, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates.........118

EPA Proposes Label Change..........119

How Drought Stress Affects Corn Plants..........120

Master of Agriculture..........121

IANR Mergers..........121

Irrigation Management..........122

Measuring Soil Moisture..........123

Grazing CRP..........124

Satellite Conference..........124

Crop Watch No. 2000-16, July 14, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Crop Updates..........136

Diagnostic Clinc Update..........139

Testing For White Mold..........140

Assessing Hail Damage..........141

CRP Released for Haying..........142

Drought Map..........142

Market Journal July 17..........143

Wheat Crop Down..........143

Comment on Programming..........144

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

Spring Wheat Response To Tillage And Nitrogen Fertilization In Rotation With Sunflower And Winter Wheat, Ardell D. Halvorson, Alfred L. Black, Joseph M. Krupinsky, Steven D. Merrill, Brian J. Wienhold, Donald L. Tanaka

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

Spring wheat (Triticum aestivum L.) is amajor crop in the northern Great Plains that is generally grown following a 21-mo fallow period. A 12-yr study was conducted to determine the effects of tillage system [conventional-till (CT), minimum-till (MT), and no-till (NT)],N fertilizer rate (34, 67, and 101 kg N ha^-1), and cultivar (Butte86 and Stoa) on spring wheat yields within a dryland spring wheat (SW)–winter wheat (WW)–sunflower (Helianthus annuus L.) (SF) rotation. Grain yield responses varied with tillage system, N fertilizer rate, cultivar, and year as indicated by significant tillage x N rate x year and …

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 …

Copper Levels And Sources In Pre- And Post-Calving Diets Of First-Calf Cows, Dennis R. Brink, Gene H. Deutscher, Erick Muehlenbein

Nebraska Beef Cattle Reports

A study replicated over two years involving 197 first-calf cows compared reproductive performance, growth and health of calves and concentration of Cu in liver, colostrum, and milk. Three treatments were evaluated: control (no Cu but Mo and Fe added to hay diet); 200 mg Cu from CuSO₄; and 100 mg Cu from AvailaCu® added daily. In 1998 a fourth treatment, 400 mg AvailaZn® was included with 100 mg AvailaCu®. Supplementation of Cu and/or Zn did not improve total pregnancy rate, or growth and health of calves. In 1998 cows fed only AvailaCu® conceived 10 days earlier compared to …

Effects Of Length Of Grain Feeding And Backgrounding Programs On Beef Carcass Characteristics, Terry J. Klopfenstein, Rob Cooper, D. J. Jordon, Drew Shain, Todd Milton, Chris R. Calkins, Carlo Rossi

Nebraska Beef Cattle Reports

Data from 534 cattle serially slaughtered indicate percentages of carcasses grading Choice increased 30 + 2.4 percentage units for each .1 in increase in rib fat. Marbling score increased 75 units (200 = Slight00) for each .1 in increase in fat. If cattle are fed to a common rib fat endpoint, and within the ranges of winter (.51-1.35 lb/day) and summer gains (1.26-1.85 lb/day) studied, we conclude backgrounding program has little or no effect on marbling or carcass quality grade. Also, systems that increase age of cattle will reduce tenderness, but if meat is cooked properly, risk of tough steaks …

Effect Of Dry, Wet, Or Rehydrated Corn Bran On Performance Of Finishing Yearling Steers, Todd Milton, Terry J. Klopfenstein, D. J. Jordon, Rob Cooper, Rick Stock

Nebraska Beef Cattle Reports

Sixty steers were individually fed finishing diets to evaluate if corn bran form affects the energy value of wet corn gluten feed. Corn bran replaced 40% (DM basis) dry-rolled corn as dry (86% DM), wet (37% DM), or rehydrated (37% DM). Dry matter intake was higher for steers fed dry bran compared with other treatments. Daily gain and efficiency were 15 and 18% higher for the control diet compared with the average of corn bran diets. Gain and efficiency were similar among corn bran diets. Corn bran form has limited influence on the energy value of wet corn gluten feed.

Effects Of Length Of Grain Feeding And Backgrounding Programs On Beef Carcass Characteristics, Terry J. Klopfenstein, Rob Cooper, D. J. Jordon, Drew Shain, Todd Milton, Chris R. Calkins, Carlo Rossi

Nebraska Beef Cattle Reports

Data from 534 cattle serially slaughtered indicate percentages of carcasses grading Choice increased 30 + 2.4 percentage units for each .1 in increase in rib fat. Marbling score increased 75 units (200 = Slight00) for each .1 in increase in fat. If cattle are fed to a common rib fat endpoint, and within the ranges of winter (.51-1.35 lb/day) and summer gains (1.26-1.85 lb/day) studied, we conclude backgrounding program has little or no effect on marbling or carcass quality grade. Also, systems that increase age of cattle will reduce tenderness, but if meat is cooked properly, risk of tough steaks …

Effect Of Dietary Concentration Of Metabolizable Lysine On Finishing Cattle Performance, M. J. Klemesrud, Terry J. Klopfenstein, Rick Stock, Austin Lewis, D. W. Herold

Department of Animal Science: Faculty Publications

A finishing trial and a metabolism trial were conducted to determine the effect of supplemental metabolizable Lys level on finishing calf performance and to estimate the metabolizable Lys requirement of finishing calves. The finishing trial included 60 individually fed crossbred beef steer calves (237 kg; SD = 20 kg) supplemented with either incremental amounts of rumen-protected Lys and Met, or Met alone. Addition of Lys and Met improved gains and efficiencies (quadratic; P < .02) during the first 56 d. There was no response to supplemental Met alone, suggesting that supplemental Lys rather than Met was responsible for the improvement in performance. Using nonlinear analyses to compare gain relative to supplemental Lys intake, maximum gain was determined to be 2.10 kg/ d, or .27 kg/d above the zero Lys control, at a supplemental Lys intake of 2.56 g/d. Steers supplemented with 3 and 4 g of Lys had a weight advantage over the control steers of 16 kg at 56 d and 32 kg at the end of the 161- d trial. However, there were no statistical responses to Lys or Met during any periods after 56 d. During a separate metabolism trial, four steers fed the control finishing diet were slaughtered, and abomasal contents were collected for amino acid analyses. The predicted (Level 1 NRC, 1996) metabolizable protein flow to the abomasum for the control diet was 715 g/d, and the predicted Lys flow was 37.9 g/d. A supplemental Lys intake of 2.56 g/d would increase the Lys flow to 40.5 g/d. Feedlot diets low in ruminal escape protein may be deficient in metabolizable Lys, especially early in the feeding period. The metabolizable Lys requirement of steer calves gaining 2.10 kg/d is estimated to be 40.5 g/d.

Mp00-75 The 2000-2001 Nebraska Poultry Report, Mary M. Beck, Mindy M. Brashears, Necmettin Ceylan, Shelly R. Mckee, Lisa Nolan, Sheila Scheideler, Eva Wallner-Pendleton, Kimberly K. Franzen, Uaichai Puthpongsiriporn, Mohammad A. Jalal, Jodi Ash, Elizabeth Marsh, Haitham Yakout, Curtis Novak, D.J. Jordan, Ryan Mass, Ramiro Lucena, Mohammed Alomad, Samar Elnagar, Jennifer Bridger, Marcos X. Sanchez, Wade M. Fluckey

University of Nebraska-Lincoln Extension: Historical Materials

The Nebraska Poultry Report is produced every two years by the Animal Science Department's poultry faculty with contributions from others in the University of Nebraska who work with avian species. The purpose of the report is to make our activities known to the poultry industries in Nebraska. The majority of articles are based on on-going research but are written in a relaxed style for ease of reading.

2000 Nebraska Swine Report, Rodger K. Johnson

University of Nebraska-Lincoln Extension: Historical Materials

This publication was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. It deals with the results that were done in reproduction, breeding, health, nutrition, economics and housing of swine.

Center For Sustainable Agricultural Systems Newsletter, January/February 2000

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Contents:

Small Businesses Are Backbone of Communities

Nebraska's Future Agriculture: Multiple Functions of Rural Landscapes

Conference to Promote Sustainable Food Systems

2000 NSAS Meeting Features Salatin

UNL Centers Offer Entrepreneurial Assistance

NCR SARE Announces Availability of Producer Grants

USDA Invests $180 Million in Rural America, Agricultural Research

New Wallace Center Created at Winrock International

Farmland Loss Accelerates

Glickman Appoints Committee on Small Farms

Crop Watch No. 2000-23, September 29, 2000, Lisa Brown Jasa

Crop Watch (1994–2005)

Share Your Thoughts..........200

Field Updates..........200

Feeding Corn to Swine..........201

Soil Moisture: Depleted..........203

Table of Moisture Level..........203

Irrigate Alfalfa This Fall..........204

Delay Anhydrous..........204

Tips for Filing LDPs..........205

Planting Cover Crops..........205

Value-Added Agriculture..........206

Readership Survey..........207

Ec00-279 Synchronizing Esetrus In Beef Cattle, Richard J. Rasby, Gene H. Deutscher

University of Nebraska-Lincoln Extension: Historical Materials

Synchronization of estrus (heat) involves manipulating the estrous cycle of beef females in a herd so they can be bred at approximately the same time. There are several traditional protocols available for synchronizing estrus among beef females.

This extension circular discusses the programs and protocols used in synchronizing estrus in the beef cow.

Mp78 2001-2002 Nebraska Dairy Report

University of Nebraska-Lincoln Extension: Historical Materials

Annual Report of University of Nebraska-Lincoln Dairy Research for 2001-2002. Topics include:

Optimal Replacement of Forage and Concentrate with a New Wet Corn Milling Product for Lactating Dairy Cows

Evaluation of Alternative Sources of Rumen Undegradable Protein with Wet Corn Milling Products for Dairy Cattle

Effect of Wet Corn Gluten Feed on Growth and Nutrient Digestibility of Dairy Heifers

Quality of Corn Silage and Wet Corn Gluten Feed Ensiled Together in Mini Silos

Use of Bt Corn Silage and Grain by Lactating Dairy Cattle

Effect of Nonenzymatically Browned Sunflower Seeds on Ruminal Fermentation and Milk Composition

Carbohydrate Composition of Commonly …

Designing And Conducting Experiments For Range Beef Cows, Don C. Adams, Merlyn K. Nielsen, Walter H. Schacht, Richard T. Clark

Department of Animal Science: Faculty Publications

Designing and conducting effective research for range beef systems involves analysis of intended application of the results, identification of factors affecting variation, and selection of appropriate research methods so that precise inferences can be made. Variances associated with time, location, animal, and error in grazing research can be high. Variation due to treatment × location and treatment × time interactions is reduced by increasing the number of locations and periods tested. Random error is reduced by increasing the total number of observations. Animals, pastures, and weather are significant sources of variation in grazing studies. Factors that influence nutrient requirements or …