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Dairy Cattle Breeding: Contributions Of Research On Field Data, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Papers about dairy cattle breeding published in the Journal of Dairy Science from 1960 through 1975 were categorized according to whether the data came from institutional herds or from field collection and also according to whether the research was done with support of a regional project. Most project papers involved institutional data. The vast majority of non-project papers made use of field data. Nearly all papers classified as theoretical were also associated with field data or field recommendations. The major impact of breeding research projects with field data has been from improved genetic evaluation for production and from development of …

Water Current, Volume 8, No. 5, September/October 1976

Water Current Newsletter

From the Desk of the Director
Matching Grant Proposal Deadline
Water Research in Nebraska
Water Measures Dead Until Next October
Section 80(c) Dispute Continues
House Subcommittee Considers Easing Irrigation Limitation
USGS 1977 Budget Tops $300 Million
Request for Information on Flood Flow Frequency Techniques for Ungaged Areas
Research Review: Validation and Implementation of a Simplified Streamflow Simulator
Warren D. Fairchild to Leave Council

An Evaluation Of Transactional Analysis As A Strategy Of Organization Development, Gilbert Frank Nykodym Ii

Department of Communication Studies: Dissertations, Theses, and Student Research

Introduction

Organizational Development (OD) and Transactional Analysis embrace a humanistic philosophy of organizational life. Connor noted: "Commitment to traditional humanistic concerns of individual growth, development, dignity, worth, and meaning is expressed in all OD literature (1975, p. 349)." Transactional Analysis (TA) takes an identical position.

We are living in the Age of Aquarius. Knowledge is no longer coveted by the chosen few who call themselves experts. Anyone who can read can gain expertise. It is fitting and appropriate at this time in human history that a model for behavior and human interaction (TA) has come along that can be used …

An Evaluation Of Treatment Recommendations For The Greenbug, Schizaphis Graminum, On Susceptible Grain Sorghum In The Clay County, Nebraska Pest Management Project, Bruce John Monke

Open Access Master's Theses (through 2010)

All fields involved in this study were located in Clay County, Nebraska and were farmed by cooperators in the Pest Management Project. Many of the field procedures were adapted from those used by the University of Nebraska Agronomy Department Outstate Testing Service. The purpose of this study was to examine, under Nebraska conditions, the accuracy of the currently accepted guidelines for determining the necessity of greenbug control on grain sorghum.

The data in this study do not support specific guidelines based only on greenbug populations or plant damage sustained due to greenbug feeding, for controlling greenbugs on susceptible grain sorghum. …

90th Annual Report Of The Nebraska Agricultural Experiment Station

Agricultural Research Division: News and Annual Reports

Contents:
Foreword
Administration and Staff
Nebraska Agricultural Experiment Station
Research Projects
Experiment Station Publications
Publications of the Staff
Report of Income and Expenditures

Systematic Evaluation Of Cellular Radiosensitivity Parameters, R. A. Roth, S. C. Sharma, Robert Katz

Robert Katz Publications

Cellular radiosensitivity parameters of the track structure theory of Katz and co-workers are evaluated from a sum of squares minimizing computer program for nonlinear models. Based on these observations, suggestions are presented for efficient experiment design for the determination of these parameters from track-segment bombardments of high LET radiations.

Acceptability Of Vocational Technical Education Program Evaluation Measures By Selected Decision Marker Groups, Richard Alvin Bringelson

Department of Agricultural Leadership, Education, and Communication: Dissertations, Theses, and Student Research

The purpose of this study was to determine the acceptability of evaluation measures which have been used to report the results of vocational technical education programs. Acceptability was defined as the willingness of a person to use the particular information in making decisions regarding vocational technical education programs. The initial group of measures was obtained by reviewing published reports on the results of vocational technical education, manpower and related types of programs. A categorized list of 101 items was presented to a jury of professional administrators and public policy makers to identify those items which they would use in decision …

Neodeuterobaris Pritchardae Gen. Et Sp. N. (Digenea: Microscaphidiidae) In A Sideneck Turtle, Podocnemis Lewyana Dumeril 1852, From Colombia, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Neodeuterobaris pritchardae in the stomach of the freshwater turtle, Podocnemis lewyana, from Colombia resembles members of Deuterobaris in possessing ventral glands, a dorsal oral hood, and vitelline follicles confluent posteriorly, but apparently differs from them by possessing 5 rather than 7 rows of ventral glands; by lacking ventral spines, extracecal uterine loops, and a muscular esophageal bulb; and by inhabiting the stomach of freshwater turtles rather than the intestine of marine turtles. Those characters are considered significant enough to erect a new genus. Diagnosis of the Deuterobaridinae is emended to accommodate the new species.

Parasites Of California Marine And Estuarine Fish, Milton S. Love, Mike Moser

Harold W. Manter Laboratory of Parasitology: Faculty Publications

While working on the parasites of several California marine fish, it was difficult to find out which parasites had been reported from our fish. Pertinent sources were scattered over a number of journals, covering many years. We compiled this list because we felt there was a need for a single source which would give all the parasites infecting California marine fish. As "marine fish" was a somewhat vague term, we decided to use it in a broad sense and included estuarine and anadromous fish in the survey. In addition, we have included records from landlocked populations of anadromous fish, such …

Social And Economic Constraints On Child Life Among The !Kung, Patricia Draper

Department of Anthropology: Faculty Publications

The usual approach in studies of socialization is to look at the interaction among cultural values, social structure, and child-training practices. The approach used here evolved during my two years in the field living with the !Kung, when it became clear to me that the major constraints on child life derived from the nature of adult work and from the organization of people in space. By the "nature of adult work" I refer to the hunting and gathering subsistence economy, to the rhythm of work routines, and to the accommodation to scarce and unevenly distributed water sources. By "organization of …

Water Current, Volume 8, No. 3, May/June 1976

Water Current Newsletter

From the Desk of the Director
Summer Institute Planned
Research Technologist Hired
Water Research in Nebraska
Bill Introduced to Amend Water Resources Planning Act
OMB Wants "Section 80" Reviewed Again
National Commission on Water Quality Sends Recommendations to Congress
Water Assessment and Appraisal Given Top WRC Priority
Rio Grande Region: More Water Stored Underground than Above
Research Review: Physiological Aspects of Plant Water Use Efficiency

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue:

3 Does Ag Research Pay?

4 Warm Season, Ornamental Turfgrasses for Nebraska

7 New Protein Sources Evaluated

8 Computer Can Analyze Your Diet

10 Photographing Rural Nebraska

13 Irrigation-From Army Ordnance to Ag Research

15 Credit Use Among Nebraska Farmers

17 Toxic Weeds Can Cause Disease in Cattle

18 Is Solar Heating Feasible for Livestock Housing?

Prevalence Of Antibodies To Toxoplasma Gondii In Wild And Domestic Animals Of New Mexico, Arizona And Colorado, Alan A, Marchiondo, Donald W. Duszynski, Gary O. Maupin

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Using the Sabin-Feldman dye test, sera from wild and domestic animals in New Mexico, Arizona and Colorado were tested for the prevalence of antibodies to Toxoplasma gondii. The prevalence of positive titers (≥ 1:8) in animals from these areas was: New Mexico (178 of 569, 31%), Arizona (11 of 56, 20%), and Colorado (2 of 7, 29%). The overall prevalence of antibodies to Toxoplasma was 30% (191 of 632).

Nine of 17 fecal samples from wild zoo felines contained Toxoplasma-like oocysts which were inoculated per os and intraperitoneally into mice. Mice from six of these nine inoculations later …

Water Current, Volume 8, No. 2, March/April 1976

Water Current Newsletter

From the Desk of the Director
NWRRI Research Seminar
Water Resources Activities - Agency Overview
AEEP Distinguished Foreign Lecturer
Water Research in Nebraska
Agreement Signed Between WRC and ERDA
Government's Water Pollution Program Questioned
Coal and the Powder River Basin: Five-State Groundwater Study Underway
Research Review

Laboratory And Field Investigations With Difenacoum, A Promising New Rodenticide, John O. Bull

Vertebrate Pest Conference Proceedings: 7th (1976)

Difenacoum is a new rodenticide recently introduced on the British market; it is one of the most potent of a series of hydroxycoumarin-based anticoagulants. Difenacoum is effective against laboratory rats and mice resistant to conventional anticoagulants and has a marked selectivity in favor of non-target species. Vitamin K₁ is an effective antidote and the hazard of secondary poisoning is minimal. Laboratory and field trials confirm difenacoum's efficacy against wild resistant strains. Further work is in progress to evaluate the efficacy of difenacoum against other rodent pest species.

Bird And Mammal Problems In Southeastern Pine Forests, T.E. Campbell

Vertebrate Pest Conference Proceedings: 7th (1976)

Birds and rodents eat pine seeds needed for regeneration, and the larger mammals destroy established seedlings by browsing or trampling. Some of the problems they cause have been solved or solutions are near; some still defy solution.

Bird And Mammal Problems In Southeastern Pine Forests, T.E. Campbell

Vertebrate Pest Conference Proceedings: 7th (1976)

Birds and rodents eat pine seeds needed for regeneration, and the larger mammals destroy established seedlings by browsing or trampling. Some of the problems they cause have been solved or solutions are near; some still defy solution.

Increasing Pocket Gopher Problems In Reforestation, John C. Capp

Vertebrate Pest Conference Proceedings: 7th (1976)

Concern over pocket gopher damage to conifer seedlings is increasing rapidly in the northwestern United States. The evolution of the pocket gopher (Thomomys spp.) has resulted in an animal that occurs throughout northwest forested areas and responds to site disturbances by increasing numbers and distribution. Pocket gophers kill or slow growth of conifer seedlings. More extensive logging, wildfires, and insect epidemics are resulting in more damage problem areas. This will continue. Current damage control is judged poor. Juvenile dispersal, high natural mortality rate, need for intensive treatment on entire damaged areas, current dependency on pesticides for control, increasing …

Pheromones In Small Rodents And Their Potential Use In Pest Control, Erik Christiansen

Vertebrate Pest Conference Proceedings: 7th (1976)

The paper reviews social interactions in small rodents in which pheromones have been reported to play a part. Some of the chemical messengers involved may have a potential use in control of rodent pests. Research in this field should be encouraged, because alternatives to the current control methods are highly desirable.

Methiocarb: Its Current Status As A Bird Repellent, Frederick T. Crase, Richard W. Dehaven

Vertebrate Pest Conference Proceedings: 7th (1976)

Studies by the U.S. Fish and Wildlife Service of the efficacy of methiocarb for reducing bird damage to sprouting corn, rice, soybeans, lettuce, and sugar beets, and to ripening rice, grain sorghum, wheat, cherries, grapes, and blueberries have shown it to be an effective, broad-spectrum bird repellent and crop protectant. The short-term plans of the Service for the further development and testing of methiocarb are reviewed. Also discussed is some of the rationale behind the use of chemical repellents to prevent agricultural damage by birds.

Management Of Pine Voles, David E. Davis

Vertebrate Pest Conference Proceedings: 7th (1976)

The pine vole (Microtus pinetorum) damages apple trees in western North Carolina, sometimes spectacularly. The current research monitors populations in orchards for several years to compare damage in different management practices. Recommendations for orchard management to reduce damage are devised and used to illustrate the process of application of basic knowledge. Populations of voles were monitored by 3 simple methods. Data on reproduction were obtained. Data on home range and mortality were found in the literature. In two counties, the orchards generally had grass in the alleys and sometimes a growth of weeds under the tree canopy. In …

Hazards To Wildlife Associated With Underground Strychnine Baiting For Pocket Gophers, Paul L. Hegdal, Thomas A. Gatz

Vertebrate Pest Conference Proceedings: 7th (1976)

Under an Environmental Protection Agency (EPA) contract, we evaluated the hazards associated with strychnine baiting for pocket gophers (Geomys bursarius) with the burrow-builder. On the Sherburne National Wildlife Refuge, Minnesota, we treated 662 ha (1638 acres) with 0.5 percent strychnine-treated bait. Treated fields were scattered throughout 10 sections. Control was effective--data from pocket gopher activity plots showed 87.5 ± 5.9 percent reductions in activity. Populations of other small rodents (while quite low) significantly declined on the treated area, but significantly increased on the control area. To measure secondary effects we equipped 36 raptors and 36 mammalian predators with …

Local Program Of Bird Damage Control In Salinas Valley, David R. Little

Vertebrate Pest Conference Proceedings: 7th (1976)

On behalf of the Monterey County Grape Growers Association, I wish to thank you for inviting us here and giving us a chance to tell the world, so to speak, about our local program of bird control: how we got there, where we are, and where we want to go. First, let me give you a little history of the grape industry in our county.

Pest Bird Damage Control In Cattle Feedlots: The Integrated Systems Approach, Thomas K. Palmer

Vertebrate Pest Conference Proceedings: 7th (1976)

The cattle feedlot affords an ideal habitat for large concentrations of birds. Several species are primarily involved in feed depredations and contamination. The development of an integrated systems approach to control involves the interaction of - human attitude, cultural control practices and application of bird damage control techniques, each of which is a dynamic system in itself.

Contamination Of Forest Ecosystems By Sodium Fluoroacetate (Compound 1080)*, J.A. Peters

Vertebrate Pest Conference Proceedings: 7th (1976)

Predictive and conceptual models are used to examine the contamination, toxicology, and residues of sodium fluoroacetate (Compound 1080) in relation to its application in vertebrate pest control programs on forest and pastoral lands.

As a pesticide, the toxin appears to be neither mobile nor persistent. Exceedingly slender opportunities exist therefore for significant contamination of susceptible components of the environment.

Operational Aspects Of Successful Ground Squirrel Control By Aerial Application Of Grain Bait, Conrad Schilling

Vertebrate Pest Conference Proceedings: 7th (1976)

By County Ordinance the County Agricultural Commissioner has been charged with rodent suppression in Fresno County, California. For nine years personnel from the Agricultural Commissioner's Office have conducted a county operated and funded program of ground squirrel suppression through the use of aerially applied zinc phosphide treated squirrel oat groats. Planning procedures, relative costs and operational aspects of the program are outlined. This technique of ground squirrel suppression has been shown to have many advantages over hand application of rodent baits. No known hazards to non-target wildlife species have been demonstrated.

Keynote Address—The Role Of Education In Vertebrate Pest Control, Gustav A. Swanson

Vertebrate Pest Conference Proceedings: 7th (1976)

Lack of adequate information is emphasized as a major problem in attaining effective control of damage by vertebrate pests, and it is stressed that the problem is widespread in all elements of the public, including those directly involved, like producers and government officials, as well as those only indirectly involved, like the average citizen. A number of specific examples are cited to illustrate the problems of uninformed or inadequately informed publics.

The Use Of Aircraft In Predator Control, Dale A. Wade

Vertebrate Pest Conference Proceedings: 7th (1976)

Private aerial hunting of predators for protection of livestock began before 1925 in the western United States. Apparently, it was first used in professional control programs in 1942. Inclement weather, dense vegetation and rough terrain are limiting factors and helicopters are more versatile than fixed-wing aircraft. When it can be employed, aerial hunting is unsurpassed as an immediate control method where livestock losses are severe and the need for control is urgent.

Agricultural Experiment Station News March 1976

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – February 1976
BULLETINS PRINTED

Control Methods For Nuisance Beaver In The Southeastern United States, Edward P. Hill

Vertebrate Pest Conference Proceedings: 7th (1976)

Strychnine alkaloid baits were consumed by both captive and wild beaver without any apparent hesitation. An approximate minimal acute lethal dose of sodium monofluoro-acetate to beaver of mixed ages and sex was 0.202 mg/kg. Trapping beaver on four study area watersheds in Alabama with No. 330 conibear traps for approximately two weeks in winter during two successive years essentially eliminated beaver. Older individuals were trapped the first year, maturing juveniles and the remaining few adults were trapped the second year, and there was very little reproduction between the trapping periods. Trapping, with its recreational appeal, and income and food potential …