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Agricultural Experiment Station News November 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
IANR REALLOCATION RECOMMENDATIONS
FEDERAL RESEARCH BUDGET UPDATE
FACULTY RESIGNATIONS
IANR ADMINISTRATIVE POSITIONS UPDATE
LAYMAN FUND PROPOSALS
NEBRASKA BANKERS ASSOCIATION GRANTS
WEIHING RETIREMENT RECEPTION
SUGAR BEET RESEARCH PLEDGES
PROGRAM REVIEW
THE GOOD LIFE WORKSHOPS
EXTENSION AND SERVICE COUNCIL GRANT PROGRAMS
NEW OR REVISED RESEARCH PROJECTS
GRANTS AND CONTRACTS
NEW EXPERIMENT STATION PERSONNEL
HOLIDAYS

Are Starlings A Potential Threat To Certain Corn Hybrids?, Paul P. Woronecki, Richard A. Dolbeer

Bird Control Seminars Proceedings

Although the European starling (Sturnus vulgaris) has long been considered a serious depredator of certain crops, especially fruit, it has not been thought to seriously damage maturing corn. In fact, most investigators have considered starlings to be beneficial in cornfields because of their consumption of earworms (Heliothus zea) and other insects. In controlled cage studies we determined starlings were capable of causing substantial damage to maturing field corn. Starling damage to a long-husked resistant and to a short-husked susceptible hybrid was 1.6 and 2.7 times greater, respectively, than that caused by male red-winged blackbirds (Agelaius …

Enzymatic Determination Of Tepp Residues On Red-Winged Blackbirds, Huo Ping Pan, Donald T. Harke, Allen R. Stickley Jr., David G. Decker

Bird Control Seminars Proceedings

In 1966 the U.S. Bureau of Sport Fisheries and Wildlife, since renamed the U.S. Fish and Wildlife Service, was considering the use of commercial tetraethylpyrophosphate (TEPP) for spraying problem bird roosts. Although TEPP was known to be a fast degrading organophosphate, the Bureau decided that a determination of TEPP residues on birds sprayed under simulated field conditions would be useful in reaching a decision on possible use of this material. The determination was done with an enzymatic Warburg manometric method for measuring the inhibition of acetylcholinesterase (AChE), a major cause of neurotoxication. It was found that at simulated roost temperatures …

Mode Of Repellent Activity Of Condensed Tannin To Quelea, M. H. Zeinelabdin, R. W. Bullard, W. B. Jackson

Bird Control Seminars Proceedings

Nonlethal chemical repellents are being vigorously investigated to control wildlife feeding in agriculture and silviculture and thus alleviate damages to food, feed, and fibre. Unfortunately, few effective avian repellents have emerged, partly because workers tend to be anthropomorphic in their basic assumptions about target species and repellent action (Rogers, 1978), and partly due to the lack of knowledge of the feeding behavior of the target species (McKey, 1974). Rogers (1978) advocated natural chemical defenses of plants against herbivores as starting points for studies dealing with repellent development. Rogers (1978) defined repellents as a "compound or combination of compounds that, when …

The Prairie Naturalist Volume 15, No. 3. September 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WINTER DISTRIBUTION AND HABITAT USE BY MULE DEER AND WHITE-TAILED DEER IN SOUTHEASTERN MONTANA ▪ J. E. Swenson, S. J. Knapp and H. J. Wentland

HISTORY AND STATUS OF EUROPEAN FALLOW DEER (Dama dama dama) AT ARGONNE NATIONAL LABORATORY, ILLINOIS ▪ G. G. Gray

REPRODUCTIVE CHRONOLOGY OF GREATER PRAIRIE CHICKENS IN MINNESOTA AND RECOMMENDATIONS FOR CENSUSING AND NEST SEARCHING ▪ W. D. Svedarsky

SUMMER BIRD USE OF A STATE-OWNED HUNTING AREA IN NORTHWESTERN ILLINOIS ▪ M. W. Brown

EVALUATION OF INTRODUCED RUFFED GROUSE IN WESTERN …

Agricultural Experiment Station News August 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
FACULTY DEVELOPMENT LEAVES
STATION NAME CHANGE PROPOSED
FIELD LABORATORY TASK FORCE
NAME THE NEW EVENT
NATIONAL RESEARCH PRIORITIES
FACULTY DEVELOPMENT LEAVE REPORT
PROJECT REVIEWS
GOVERNOR SUPPORTS AG RESEARCH
AGRONOMY DEPARTMENT HEAD SEARCH
BUDGET REALLOCATION
GRANTS & CONTRACTS
NEW OR REVISED PROJECTS
PROJECT ACCOMPLISHMENTS
PANHANDLE STATION DIRECTOR POSITION

Agricultural Experiment Station News July 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
ASSOCIATE DIRECTOR POSITION
COMPREHENSIVE PROGRAM REVIEWS
FIELD LABORATORY TASK FORCE
BUDGET SITUATION
FIELD DAY STEERING COMMITTEE
INDIRECT COST RATES CHANGE
NEW OR REVISED PROJECTS
GRANTS AND CONTRACTS
PROJECT FUNDING
Experiment Station Personnel

Animal Science Newsletter, Summer 1983

Department of Animal Science: Departmental News

Contents:

Aberle Heads Animal Science Department
The Completion of Animal Science Complex Moves Forward With Planning and Design Funds
Impact of Budget Cuts
Block and Bridle Club Honors to Sorensen
New Animal Science Faculty
Staff Members Receive Recognition
Animal Science Department Head Becomes Dean and Director of Agricultural Experiment Station
Animal Science Reunion
Animal Science Employee Honored
Graduate Students Receive Awards
Arthaud Memorial Fund
Loveday Accepts Position at University of Tennessee

The Effect Of Variable Spring Water Conditions On Mallard Reproduction, Gary Krapu, Albert Klett, Dennis Jorde

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Mallard (Anas platyrhynchos) breeding densities in the prairie pothole habitat of eastern North Dakota during 1961-1980 varied from 2.28 birds/km² in 1977 to 9.47 birds/ km² in 1963 and were correlated with pond abundance (r = 0.543, P < 0.05). The number of basins used by pairs declined with drought, as did home-range size. Nesting activity also varied with the number of ponds holding water/km², ranging from high (including substantial renesting) under favorable water conditions to low during extreme drought. The span between first and last nest initiations declined by 19 days from a wet to a dry year. With severe drought conditions during spring 1977 on the Medina Study Area, pairs returned to attempt nesting but were unsuccessful, and most …

Agricultural Experiment Station News June 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
PROJECT ACCOMPLISHMENTS
ASSOCIATE DIRECTOR POSITION
UNIVERSITY OF NEBRASKA FOUNDATION GRANT REQUESTS
TWELVE HIGHEST AGRICULTURAL RESEARCH PRIORITIES FOR SPECIAL, ADDED EMPHASIS IN THE NORTH CENTRAL REGION - 1983
ADVISORY COUNCIL ELECTION RESULTS
AES BUDGET REDUCTIONS
DEPARTMENT HEADS APPOINTED
CONGRESSIONAL AGRICULTURAL RESEARCH FAIR
GRANTS AND CONTRACTS
RESEARCH "ALIVE AND WELL" AT GUDMUNDSEN CENTER
EXPERIMENT STATION PROJECT ACCOMPLISHMENTS

The Prairie Naturalist Volume 15, No. 2. June 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

EFFECTS OF FIRE ON RODENTS IN TALLGRASS PRAIRIE OF THE FLINT HILLS REGION OF EASTERN KANSAS. D. W. Kaufman, G. A. Kaufman, and E. J. Finck

FECAL pH AND FOOD HABITS OF SYMPATRIC LAGOMORPHS IN TEXAS R. J. Warren

UNUSUAL PLANT ASSEMBLAGE IN WALSH COUNTY, NORTH DAKOTA ▪ B. Heidel

ADDITIONAL RECORDS OF PASSERINES FEEDING ON POPLAR GALLS, AND A POSSIBLE MECHANISM FOR SUMMER NOMADISM IN BOREAL FINCHES ▪ P. J. DuBowy

UPDATE ON THE AMERICAN BALD EAGLE, Haliaeetus leucocephalus L., IN NEBRASKA ▪ S. J. Rothenberger …

Aspects Of The Biology Of The Spotted Seatrout, Cynoscion Nebulosus, In Mississippi, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

About 3,000 specimens of the spotted seatrout from Mississippi Sound and adjacent water grouped by males and females had a nearly identical standard Iength (SL) versus total length (TL) relationship, although the equation for males in winter differed from that for those in other seasons. When investigating the SL-weight relationship, some differences occurred both among seasons and between sexes. Therefore, condition coefficients (K) were calculated to compare male and female groups according to their length and state of maturation on a seasonal basis. The hepatosomatic index (HSI) tended to increase with fish length, with relatively high values occurring in winter …

Agricultural Experiment Station News May 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
SEARCH COMMITTEE APPOINTED
AGRICULTURE ECONOMICS REVIEW
EFFECTS OF SCAB WHEAT ON BEEF CATTLE
NATIONAL SCIENCE FOUNDATION PROJECT
UNIVERSITY GRANT APPLICATION ACTIVITY
A SUMMARY OF UPCOMING EVENTS
NEW OR REVISED PROJECTS
GRANTS AND CONTRACTS

Wpa News 2 (1983), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (May 1983), number 2

Published by the World Pheasant Association

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

Farm, Ranch and Home Quarterly

In this issue:

2001 Assesses Needs..................... 2

Fats In your Diet-What Role Do They Play?...................... 3

Energy-Integrated Farming- Research and Demonstration For Energy Self-Sufficiency....................6

Consider Plant Disease in Row Crop Conservation Tillage ...............................14

Increase Production From Dry-land Pastures on Sandy Soil ..............................18

The COMPUTER-Its Time Is Now .................. 20

The Status of Family Farming in Nebraska................... 22

Simulation Of Heterosis Effects On Costs Of Pork Production, G. L. Bennett, M. W. Tess, G. E. Dickerson, R. K. Johnson

Department of Animal Science: Faculty Publications

Individual plus maternal heterotic effects on swine production were simulated with a bioeconomic model by changing performance levels of eight traits: -8 d in age at puberty, +3% in conception rate, +.94 in pigs born/litter, +.035 kg in pig birth weight, +2.05 Mcal•sow^-1•d ^-1 in maximum milk output, +8% in preweaning survival, +10.8% in protein growth rate and +17.3% in fat growth rate. Associated heterosis simulated for other traits, such as weaning weights and postweaning gain/feed, was similar to experimental results. Effects of heterosis on biological (feed Mcal/kg) and economic ($/kg) costs were evaluated by simulating two- and …

Effect Of 6-Mboa On Microtus Pinetorum And Microtus Pennsylvanicus Of Different Ages, J. A. Cranford

Eastern Pine and Meadow Vole Symposia

Short-lived small rodents require environmental cues to synchronize their breeding with optimal environmental conditions. In the absence of such cues animals would waste a large portion of their reproductive effort when environmental conditions were unfavorable. Rowan (1938) noted that endocrine systems regulating mammalian reproduction responded to the environmental photoperiodic cues. Bodenheimer (1946) observed that major outbreaks of voles in Palestine could not be correlated with environmental factors such as climate, photoperiod, volume of food resources, or population density, acting either alone or in combination. From those studies he suggested that vole outbreaks were associated with an unknown factor or factors …

Effects Of Coprophagy In Microtine Rodents, Jack A. Cranford, E. O. Johnson

Eastern Pine and Meadow Vole Symposia

Digestion and assimilation strategies of herbivorous mammals are diverse but fall into two major categories (Moir, 1968; Gartner and Pfaff, 1979; Hume and Warner, 1980). The most complex of which occurs in the lagomorphs and has been well studied. In contrast rodents exhibit great variability in diet and nutritional biology (Landry, 1970; Baker, 1971; Kenagy and Hoyt, 1980). Early reports of coprophagy by rodents were incidental or descriptive, and indicated it was infrequent (Howell and Gersh, 1935; Ingles, 1961; Wilkes, 1962; Hoover et al., 1969; Jarvis, 1981). Rats mechanically prevented from reingesting feces showed reduced growth rates (Barnes et al., …

Digestible Energy Content Of Diets Of Pine Voles From Different Orchard Habitat Types, S. L. Macpherson, R. L. Kirkpatrick

Eastern Pine and Meadow Vole Symposia

In a previous study at VPI & SU, Servello (1981) developed a technique for predicting the digestible dry matter (DDM) and digestible energy (DE) of the diets of pine voles from a nutritive analysis of their stomach contents. In this nutritive analysis, developed by Goering and Van Soest (1970), feeds are divided into two major fractions: cell soluble and cell wall fractions. The cell soluble fraction is highly digestible while the cell wall (fiber) fraction varies in digestibility. It was found that the highly digestible cell soluble values of the stomach contents were the best predictor of the digestibility of …

The Influence Of Soil Moisture, Texture, And Temperature On Nest-Site Selection And Burrowing Activity By The Pine Vole, Microtus Plnetorum, Donald H. Rhodes, Milo E. Richmond

Eastern Pine and Meadow Vole Symposia

Pine voles (Microtus pinetorum) have long been recognized as a pest species in fruit orchards of the eastern United States (Hamilton 1935). These semifossorial rodents construct tunnel systems beneath apple trees where they eat entire roots or strip roots of bark and cambium. Hamilton (1938) reported numbers of pine voles within apple orchards as high as 200-300 voles per acre which is in sharp contrast to the relative scarcity of pine voles outside orchard situations (Crain and Packard 1966; Goertz 1971), These findings suggest that orchard habitat provides excellent conditions for pine vole growth and reproduction, although the specific components …

Highlights Of The Seventh Eastern Pine And Meadow Vole Symposium, Ross E. Byers

Eastern Pine and Meadow Vole Symposia

The Seventh Eastern Pine and Meadow Vole Symposium was held at the Cliffside Inn, Box 786, Harpers Ferry, West Virginia, March 3-4, 1983 for the purpose of assessing the current status of research, extension, and industry programs relating to vole damage to fruit trees. The meeting was held to provide a problem solving atmosphere in which growers, governmental agencies such as EPA, USDA, USDI, the chemical industry, and university personnel could observe the current thrusts of research and extension programs and their impact on future control strategies.

Agricultural Experiment Station News March 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
AES ADVISORY COUNCIL
FACULTY SENATE COMMITTEES
ASSOCIATE DIRECTOR POSITION
NEWSWORTHY PROJECTS
NEW PROJECTS
GRANTS AND CONTRACTS
BUDGET MEETINGS SCHEDULED FOR APRIL
SCIENTIFIC EQUIPMENT INVENTORY

Index Selection And Feed Intake Restriction In Swine, I: Effect On Rate And Composition Of Growth, Erik R. Cleveland, R. K. Johnson, R. W. Mandigo

Department of Animal Science: Faculty Publications

The objectives of this experiment were to determine the effects of index selection for increased average daily gain and decreased backfat, and the effects of restriction of daily feed intake, on rate and composition of growth in swine. A total of 53 barrows from select and control lines were randomly assigned to three feeding levels at 83 d of age, and 33 littermate barrows were slaughtered to establish initial body composition. The trial was approximately 105 d and the feeding levels were twice daily to appetite (AP), once daily feeding of 91% of appetite (AP9l) and once daily feeding of …

Index Selection And Feed Intake Restriction In Swine, Ii: Effect On Energy Utilization, Erik R. Cleveland, R. K. Johnson, R. W. Mandigo, E. R. Peo Jr.

Department of Animal Science: Faculty Publications

Fifty-three index select and control line barrows were randomly assigned to three feeding levels at 83 d of age. They were slaughtered at approximately 188 d of age to determine the effects of index selection (for increased average daily gain and decreased backfat) and level of feed intake on energy utilization. During the trial, the feed intake levels were twice daily to appetite (AP), once daily feeding of 91% of appetite (AP91) or once daily feeding of 82% of appetite (AP82) intake. The metabolizable energy intake required per kilogram of edible lean deposited (Mcal/kg) was reduced (P.75)^-1 x day …

Agricultural Experiment Station News February 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
TRAVEL TO SCHOLARLY MEETINGS
PROFESSIONAL TRAVEL FUNDS
GRANT PROPOSALS TO COMMODITY CHECK-OFF BOARDS
AES ADVISORY COUNCIL
AES DIRECTOR'S OFFICE MOVES
NATIONAL AG LIBRARY
APPROVED PROJECTS
AES GRANTS RECEIVED FOR 1ST SIX MONTHS OF FY 83
New Experiment Station Personnel

Bird Dispersal Recordings: An Overview, Robert H. Schmidt, Ron J. Johnson

School of Natural Resources: Faculty Publications

Copyright® 1983 by ASTM International. Used by permission.

G83-655 Management Of Early Weaned Calves, Paul Q. Guyer

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the benefits and disadvantages of weaning beef calves early, including rations and methods for both drylot and pasture-grain feeding programs.

Early weaning of beef calves is a management practice that should be considered under situations such as fall calving, drylot cow-calf production and drought. In areas where forage quality is very poor in late summer and early fall, early weaning might also be considered as a regular practice. Early weaning can enhance the efficiency of drylot cow-calf operations by allowing greater use of poor quality roughages by the cow herd.

Ec83-219 1983 Nebraska Swine Report, J. D. Crenshaw, E. R. Peo Jr., R. D. Fritschen, Roy L. Carlson, Rodger K. Johnson, William Ahlschwede, Robert M. Timm, Murray Danielson, J. B. Campbell, Gary L. Asche, Austin J. Lewis, A. D. Flowerday, Warren William Sahs, M. C. Brumm, J. A. Deshazer, Douglas G. Overhults, Roger J. Kittok, J. E. Kinder, Temple Grandin

University of Nebraska-Lincoln Extension: Historical Materials

This 1983 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating departments for use in the Extension and Teaching programs at the University of Nebraska-Lincoln. Authors from the following areas contributed to this publication: Swine Nutrition, swine diseases, pathology, economics, engineering, swine breeding, meats, agronomy, and diagnostic laboratory. It covers the following areas: breeding, disease control, feeding, nutrition, economics, housing and meats.

Furunculosis And Other Diseases Caused By Aeromonas Salmonicida, G. L. Bullock, R. C. Cipriano, S. F. Snieszko

United States Fish and Wildlife Service: Publications

Aeromonas salmonicida is a gram-negative bacterium that usually produces a water-soluble brown pigment. It was first described by Emmerich and Weibel (1890) as the cause of salmonid furunculosis in Germany. Although the disease was first considered to be limited to salmonids, studies by the Furunculosis Committee (Mackie et al. 1930, 1933, 1935) showed that A. salmonicida also infected other fish species. Present indications are that A. salmonicida or its variants also produce other diseases, such as ulcerative disease of goldfish (Carassius auratus), erythrodermatitis of common carp (Cyprinus carpio), ulcer disease of trout, and systemic infections among …

Infectious Pancreatic Necrosis (Ipn) Of Salmonid Fishes, Phillip E. Mcallister

United States Fish and Wildlife Service: Publications

Infectious pancreatic necrosis (IPN) is a viral disease principally associated with salmonids, although IPN and lPN-like viruses have been isolated from various nonsa1rnonid fish and marine invertebrates. Acute infection occurs in 1- to 4-month-old salmonids and can result in cumulative mortality approaching 100%. In contrast, fish 6 months old or older can undergo subclinical or inapparent infection, but experience no significant mortality. Survivors of the disease can become lifelong carriers of the virus. Epizootics of IPN have been reported worldwide, and several virus serotypes are recognized. The disease known as IPN was probably first described by M'Gonigle (1941) as acute …