Life Sciences Commons^™

Time Of Weaning And Cow Condition, Jack C. Whittier

Range Beef Cow Symposium

The primary mission of a beef brood cow is to consistently produce calves. There are numerous management practices designed to assist cows in accomplishing this mission. Young cows frequently require more management attention to be reproductively successful than do older, mature cows.

In recent years attention has been focused on altering time of weaning to manipulate cow body condition as a method of maintaining high reproductive rates while also reducing winter feed requirements. If cows nurse their calves for a longer or shorter period of time than is traditional, a corresponding decrease or increase in body condition may result due …

Strategic Alliances: How Can Seed Stock Producers Help?, Roger Dieter

Range Beef Cow Symposium

The reason I have been invited to speak about Strategic Alliances at the Range Beef Cow Symposium is because of our involvement with a couple different Alliances the past two years. As a type of introduction I feel it may be beneficial to provide you with background information about our alliance experiences.

Our first involvement with any type of alliance format was as a participant in the Stragegic Alliance Project that was sponsored by the National Cattlemans Association in 1993. The Stragegic Alliance Project was, in part, a follow up to the National Beef Quality Audit, a project also sponsored …

Marketing Cull Cows – How & When?, Dillon M. Feuz

Range Beef Cow Symposium

Cull cows are often overlooked as an important source of income to the cow-calf enterprise. Depending upon the relationships between cull cow and calf prices, and the herd culling rate, cull cow receipts generally account for 15-30 percent of income from the cow-calf enterprise. However, some producers give little attention to this source of income and ways of enhancing it. For many producers, cull cows are sold at the time culling takes place, and much of this culling is done in the late fall soon after calves are weaned. Is it most profitable to sell cows when they are culled, …

What Is The Best Energy Supplement For Thin Cows On Low-Quality Roughages?, David W. Sanson

Range Beef Cow Symposium

Thin cows on low-quality roughages are the most challenging group of animals to deal with for beef cow producers in the Northern Great Plains. Typically, this situation occurs during the late fall/winter/early spring months, when the additional nutrient requirements for fetal development or lactation are needed. In this region, cows are often exposed to unfavorable weather conditions, which also increases nutrient requirement. Since thin cows have less outside fat, and therefore less insulation, they have to expend more nutrients to maintain body temperature than cows with adequate body condition. When these nutrient requirements are combined with the need to increase …

Simple Concepts For Long-Term Ranch Success, Patrick E. Reese

Range Beef Cow Symposium

In today’s fast-moving world of information, ranchers frequently suffer from technology overload. There can be enormous temptations to invest excessive amounts of resources on inconsequential activity. Understanding the responsibility of management for long-term success will help ranchers select appropriate technology. Focus on primary objectives will allow ranchers to develop simple and cost effective management strategies. Long-term survival of range livestock enterprises depends on (1) surviving or avoiding environmental extremes, (2) balancing livestock requirements with forage resources, and (3) recovering investments.

Achieving Cow/Calf Profitability Through Low-Cost Production, R. E. Taylor, T. G. Field

Range Beef Cow Symposium

A few years ago a NCA task force committee made the following statement:

"Low-cost producers (in all segments of the production chain) will survive in this system of competitive markets. Others [high-cost producers] will eventually be unable to compete and will exit the business."

Initially, this pointed summary statement fell on deaf ears as cattle prices were relatively good and many producers said they couldn't reduce costs as each year their costs were increasing. Currently, the high-cost producers are exiting the cattle business or depleting assets. Other cow/calf producers have positioned or are positioning themselves as low-cost producers. An increased …

A Rancher’S Focus On Cost Effective Management, Connie R. Quinn

Range Beef Cow Symposium

This paper focuses on profitability points which apply to the cow/calf producer. This is a challenging task and, at best, will be a restatement of the practices that are employed by any good beef producer. In today’s environment, if one has the boldness to put these points in print, it is only to reinforce the good management already being implemented and to offer ideas for other management practices that could also be employed. The merit of this exercise is to exchange ideas that can be mixed and matched with what is already being done on the ranch. The result will …

Cow-Share And Bull Leasing Arrangements – What’S Fair And Economical, Richard T. Clark, Donald B. Hudson

Range Beef Cow Symposium

Today's beef producer faces a difficult economic climate. Prices for calves, feeders and fed cattle are low compared to 2 years ago. Feed grain prices are soaring due to high demand and short supply. Access to borrowed capital could become limited for some. Cow-calf producers, especially, need to control costs and yet maintain productivity. Cash leasing of bulls and share-leasing of cows may offer ways to help control costs and acquire capital, if such arrangements are fair and offer all parties the opportunity to succeed.

A Review Of The Nearctic Species Of The Thrips-Attacking Genus Ceranisus Walker (Hymenoptera: Eulophidae), S. V. Triapitsyn, David H. Headrick

Horticulture and Crop Science

The thrips-attacking Eulophidae (subfamily Entedoninae) known from the Nearctic region are reviewed. One new species, Ceranisus loomansi, is described. Four other species of Ceranisus are redescribed and illustrated based mainly on a study of their type specimens as well as on additional material from Arizona, California, Hawaii, Mississippi and Japan. Lectotypes are designated for Ceranisus americensis (Girault), C. nubilipennis (Williams) and C. russelli (Crawford). A key to eight species belonging to four entedonine thrips-attacking genera is given, and host associations are indicated for those species.

A Review Of Ministerial Policy Guidelines For Rock Lobster Processing In Western Australia From The Working Group Appointed By The Minister For Fisheries And Chaired By Peter Rich, Peter Rich

Fisheries management papers

The rock lobster processing industry in Western Australia has a long history of management. Whilst management of the industry through the Fisheries Department has obviously been successful in helping to build the rock lobster industry into one of the State's major export industries, this approach is not without problems. With the introduction of the Fisheries Management Act 1994, the Minister for Fisheries deemed it appropriate to appoint an expert group to review the existing regulation of the rock lobster processing sector, draft the necessary guidelines to assist the Executive Director of the Fisheries Department make decisions on rock lobster processing …

Southeast South Dakota Experiment Farm Annual Progress Report, 1995, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This thirty-fifth annual report of the research program at the Southeast South Dakota Experiment Farm has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota. Reports in this document include information on: temperatures and precipitation data, corn production and performance, soybean research and planting, soil testing, alfalfa yield test, fertilizer testing, herbicide research, crop rotation, sorghum, small grains, livestock research, and pest and weed control.

Northeast Research Station Watertown, South Dakota Annual Progress Report, 1995, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1995 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Plant Science Department. This report includes weather data, yield comparisons, crop performance trials, corn trials, soybean trials, winter wheat performance testing, Barley Foliar information, weed and pest control, herbicide demonstrations, canola and flax variety trials and more.

Bulletin No. 34: Tidal Marshes Of Long Island Sound: Ecology, History And Restoration, Glenn D. Dreyer, William A. Niering

Bulletins

No abstract provided.

Ua66/14/4 Kentucky Partnership Newsletter, Vol. Ii, No. 9, Kentucky Partnership For Farm Family Health & Safety

University Organizations

Newsletter created by and about the Kentucky Partnership for Farm Family Health & Safety.

Complex Dynamics And Multistability In A Damped Harmonic Oscillator With Delayed Negative Feedback, Sue Ann Campbell, Jacques Bélair, Toru Ohira, John Milton

WM Keck Science Faculty Papers

A center manifold reduction and numerical calculations are used to demonstrate the presence of limit cycles, two-tori, and multistability in the damped harmonic oscillator with delayed negative feedback. This model is the prototype of a mechanical system operating with delayed feedback. Complex dynamics are thus seen to arise in very plausible and commonly occurring mechanical and neuromechanical feedback systems.

Five New Species Of Acanthobothrium Van Beneden, 1849 (Eucestoda: Tetraphyllidea: Onchobothriidae) In Stingrays From The Gulf Of Nicoya, Costa Rica, Fernando Marques, Daniel R. Brooks, William Scott Monks

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Five new species of Acanthobothrium are described in stingrays from the Gulf of Nicoya, Costa Rica. Acanthobothrium costarricense n. sp. in Dasyatis longus, most similar to Acanthobothrium lilium, Acanthobothrium lineatum, and Acanthobothrium himanturi, has bothridial hooks averaging 125 μm (lateral) and 145 μm (medial) long, an average of 47 testes per proglottis, cirrus sacs averaging 187 μm long, and asymmetrical ovarian lobes with poral lobes reaching the posterior margin of the cirrus sac, and aporal lobes reaching the middle of the cirrus sac. Acanthobothrium cimari n. sp. in D. longus, most similar to A. lilium …

Whooping Crane Sightings During July-December 1995 Migration, Steven Anschutz

Nebraska Bird Review

The first dates recorded for confirmed observations of migrating Whooping Cranes were July 13 in Canada and September 2 in the United States, and the last date was November 6 in Nebraska. Sightings were reported in Canada from Alberta (1) and Saskatchewan (34), and in the U.S. from North Dakota (4), South Dakota (1), Nebraska (4), Kansas (10), and Oklahoma (2). The weather during September and October was mild with minor disturbances on Sept. 20 and Oct. 23 causing snow over the Northern Great Plains. The first significant outbreak of cold air occurred during the week of November 5. Based …

Index To Volume 63

Nebraska Bird Review

Index to Volume 63

8 pages

A-Z

Masthead From Nebraska Bird Review (December 1995) 63(4)

Nebraska Bird Review

The Nebraska Bird Review is published quarterly in March, June, September, and December by the Nebraska Ornithologists Union, Inc., as its official journal, and is sent to members not b arrears for dues. Annual subscription rates (on a calendar-year basis only): $12.50 in the United States, $15.00 in Canada and Mexico, and $17.50 for all other countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, am $5.00 elsewhere. Send orders for back issues to Mary H. Pritchard, NOU Librarian, University of Nebraska State Museum, Lincoln, NI 68588-0514.

Nebraska Ornithologists' Union Fall Field Days, October 6-8, 1995, At The Nebraska National Forest Near Halsey

Nebraska Bird Review

Betty Grenon, Treasurer, reported that NOU has 240 members.

George Brown, Past President, reported on plans for the 1996 Annual Meeting to be held in Kearney, NE on May 17-19. Bill Huser, Vice President, announced that the 1997 Annual Meeting will be held jointly with The Iowa Ornithologists' Union and The South Dakota Ornithologists’ Union in South Sioux City, NE. in May (dates not set). There was some discussion about having a hospitality room to encourage mixing of the three groups. The 1996 Fall Field Days will be held at the Nebraska National Forest near Halsey on the first weekend …

Fall Field Report, August-November 1995, W. Ross Silcock

Nebraska Bird Review

Generally this was a "normal" fall, if there is such a thing; a few new early and late dates but no pattern, a few notable species showing or absent, and a few rarities. Grebes and loons were in evidence, including Red-throated and Pacific Loons and Red-necked Grebe, but geese did not arrive (or were not reported) in great numbers by the end of the period. The less common herons were in good numbers, notably Snowy Egret, and also Little Blue Heron and Yellow-crowned Night-Heron. Notable for their absence were the thrushes; few Swainson's were found, and no Gray-cheeked, Veery, or …

A Possible Breeding Record For Clark's Nutcracker, Diana F. Tomback

Nebraska Bird Review

In the late morning of 17 May, 1987, my husband and I drove into Sowbelly Canyon, which is in the Pine Ridge area in northwestern Nebraska. In the canyon, about 3.3 miles from Harrison, we were in a ponderosa pine (Pinus ponderosa)–riparian community ecotone, and were startled to hear and see a flock of Clark's Nutcrackers (Nucifraga columbiana). About 30 adults were perched on branches or flying about the tops of the ponderosa pines. From the abundance of cones, it was clear that there had been a good seed crop the previous fall. Some of the …

Nebraska Bird Review (December 1995) 63(4), Whole Issue

Nebraska Bird Review

Table of Contents

Fall Field Report, August-November, 1995 ..............94

Observers for Fall Field Report ..............113

A Possible Breeding Record for Clark's Nutcracker in Northwestern Nebraska in 1987.............. 114

Whooping Crane Sightings, July-December, 1995 Migration ..............116

NOU Fall Field Days, 1995, Nebraska National Forest: Executive Committee Meeting ..............117

Table for NOU Fall Bird Count, October 7-8, 1995 ..............117

Index to Volume 63..............120

Connexin32 Is A Myelin-Related Protein In The Pns And Cns, Steven S. Scherer, Suzanne M. Deschênes, Yi-Tian Xu, Judith B. Grinspan, Kenneth H. Fischbeck, David L. Paul

Biology Faculty Publications

We have examined the expression of a gap junction protein, connexin32 (Cx32), in Schwann cells and oligodendrocytes. In peripheral nerve, Cx32 is found in the paranodal myelin loops and Schmidt-Lanterman incisures of myelinating Schwann cells, and the levels of Cx32 protein and mRNA change in parallel with those of other myelin-related genes during development, Wallerian degeneration, and axonal regeneration. In the central nervous system, Cx32 is found in oligodendrocytes and their processes, but not in compact myelin, and the levels of Cx32 protein and mRNA increase during development in parallel with those of the other myelin genes. Thus, Cx32 is …

Ard News December 1995

Agricultural Research Division: News and Annual Reports

CONTENTS:

SEASON'S GREETINGS
GRANTS AND CONTRACTS RECEIVED OCTOBER AND NOVEMBER, 1995
PROPOSALS SUBMITTED FOR FEDERAL GRANTS
NEW OR REVISED PROJECTS
"GENERIC" DISCLOSURE OF INTEREST FORM
CONTACTS WITH MEMBERS OF CONGRESS AND THE LEGISLATURE
FY 1997 PRIORITIES OF THE JOINT COUNCIL
AUTHORIZED SIGNATURES ON GRANT PROPOSALS
PROJECTED FEDERAL R&D FUNDING FOR FY 1996
IANR FACILITIES ACTIVITY
ARD LAUNCHES WEB PAGE
FY 1996 CSREES BUDGET
HAZARDOUS MATERIALS PROGRAM CHARGES

Simulation Modeling Within Workflow Technology, John A. Miller, Amit P. Sheth, Krzysztof J. Kochut, Xuzhong Wang, Arun Murugan

Kno.e.sis Publications

This paper presents an approach for integrating simulation modeling and analysis capabilities within the workflow management system (WFMS) being developed in the Large Scale Distributed Information Systems (LSDIS) Lab at the University of Georgia. Simulation modeling can be used for studying the efficiency of workflow designs as well as studying the general performance and reliability of WFMSs. We also discuss the importance of using sophisticated monitoring and animation capabilities, and the use of workflow management technology to advance simulation technology itself. Finally, we demonstrate a sample simulation where tasks and task managers are simulated.

The Prairie Naturalist Volume 27, No.4 December 1995

The Prairie Naturalist

NEW DISTRIBUTIONAL RECORDS FOR MAMMALS IN KANSAS · D. W Sparks and J. R. Choate

CLAY-COLORED SPARROWS IN NORTH DAKOTA PARASITIZED BY BROWN-HEADED COWBIRDS ▪ G. P. Romig and R. D. Crawford

A NOTEWORTHY RECORD AND THE BREEDING DISTRIBUTION OF THE BLUE GROSBEAK IN NORTH DAKOTA ▪ L. D. Igl

NEAR LONGEVITY RECORD FOR THE SNOW GOOSE ▪ M T. Koenen and D. M. Leslie, Jr.

COMPARISON OF WATER CONSUMPTION BETWEEN TWO GRASSLAND EMBERIZIDS ▪ J. L. Zimmerman

FACTORS ASSOCIATED WITH DECLINING PROPORTION OF CITIZENS HUNTING IN SOUTH DAKOTA ▪ N. J. Dietz, K. F. Higgins, and R. D. Mendelsohn …

Central Bank Of Nigeria Statistical Bulletin, December 1995, Central Bank Of Nigeria

CBN Statistical Bulletin

Financial data is compiled from balance sheets and financial statements, which are primarily designed for legal and administrative purposes rather than economic analysis. The Finance and Accounts Department prepares the CBN accounting balance sheet data for the Research Department, using the monthly return of Assets and Liabilities and the summary trial balance as benchmarks. The Financial Statistics Office compiles the analytical CBN balance sheet without major reclassifications or rearrangements. The consolidation of accounts of monetary authorities and deposit money banks produces monetary survey accounts. Deposit money banks are highly prone to volatility and fragility, making them subject to regulations and …

Hexapod Herald - Vol. 7, No. 28, December 1, 1995

Hexapod Herald and Other Entomology Department Newsletters

Grants

Publications

Congratulations

Miscellaneous

Announcements from the office

Calendar of events

Accuracy Of Equations Predicting The Phyllochron Of Wheat, Gregory S. Mcmaster, Wallace Wilhelm

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

Predicting the rate of leaf appearance, or phyllochron, aids in understanding and modeling grass development and growth. Nine equations predicting the phyllochron of wheat (Triticum aestivum L.) were evaluated using field data from a variety of locations, cultivars, and management practices. Each equation is referred to by the last name of the first author; if there is more than one equation by the first author, additional descriptors were included. The BAKER and KIRBY equations predict the phyllochron based on changes in daylength following seedling emergence; CAO-TEMP and CAO-DAY use a curvilinear relationship with temperature and daylength, respectively; CAO-T&D uses the …