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The Pronghorn Antelope

Nebraska Game and Parks Commission: Publications

Fossilized remains on the North American continent are reminders that the pronghorn antelope (Antilocapra americana) roamed the land in present-day forms as early as the Age of Mammals, over one million years ago. Evolutionary changes may have taken 20 million years to develop the pronghorn as we know it today. Surviving the rigors of this violent young continent, the ancestral pronghorn antelope thrived and evolved into an alert, fleet-footed ungulate which roamed the large expanse of brush, grassland and cactus of the plains area.

Growth And Performance Of Growing-Finishing Lambs Exposed To Long Or Short Photoperiods, B. D. Schanbacher, J. D. Crouse

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

The effects of photoperiod (8 hr light: 16 hr dark [8L:16D] or 16L:8D) on performance of growing-finishing lambs were evaluated in an experiment with 24 rams and 24 wethers. All lambs were caged in groups of two in a controlled environment and fed a pelleted diet ad libitum for the duration of the study (10 to 22 weeks of age). Performance and carcass data showed that both photoperiod and sex of lamb affected growth rate (P<.01) and feed efficiency (P<.05) but that only sex of lamb affected carcass quality (P<.05) and yield (P<.10). A sex by photoperiod interaction was not observed for any of the traits measured. Average daily gain (grams/per day) and feed efficiency (feed/gain) for lambs in the four treatment groups tested were: rams (16L:8D), 410 and 4.3; rams (8L:16D), 340 and 4.5; wethers (16L:8D), 345 and 4.6, and wethers (8L:16D), 300 and 4.8, respectively. Carcass weight, like slaughter weight, was affected by photoperiod (P<.01) and sex of lamb (P<.05); both rams and wethers exposed to long photoperiods had the heaviest carcasses. Ram carcasses were leaner, had better yield grades and were heavier than wether carcasses, yet both ram and wether carcasses graded Choice. Testosterone concentrations in serum were undetectable (<.2 ng/ml) at 22 weeks of age in wethers but were elevated (P<.O1) in ram lambs exposed to short (3.4 ± 1.4 ng/ml) or long (.8 ± .2 ng/ml) photoperiods. Prolactin concentrations, on the other hand, were not influenced by sex of lamb but were influenced (P<.01) by photoperiod; i.e., prolactin concentrations were high in rams (190 ± 34 ng/ml) and wethers (178 ± 28 ng/ml) exposed to long photoperiods and low in rams (43 ± 9 ng/ml) and wethers (27 ± 11 ng/ml) exposed to short photoperiods. These results suggest that testosterone and prolactin may independently affect growth and performance of growing-finishing lambs.

Water Current, Volume 12, No. 1, January/February 1980

Water Current Newsletter

Annual Report, Nebraska Water Resources Center
Water Planner Hired
Water Resources Seminar Schedule Change
Second Water Data Conference
Engineering Short Course at UNL
New Edition of Publication No. 7
Nation-Wide Conservation Program
Unified National Program for Floodplain Management
NSF Research Program in Appropriate Technology
Research Review: The Biological Regulation of Bloom-Causing Blue-Green Algae: A Feasible Alternative

1980 Beef Cattle Report, Leo E. Lucas

Nebraska Beef Cattle Reports

Weighing steers three consecutive days at the beginning and end of the trial reduced variation and increased the probability of detecting a difference in daily gain and gain/protein ratios between treatments when compared to a standard weighing method (once at the beginning and once at the end of the trial). Regressing 1 initial, 1 final and 11 weekly weights also decreased variation and increased the probability of detecting treatment differences compared to the standard method, but was more variable than using three weights at the beginning and end of the trial.

Young, growing steers and lambs supplemented with natural protein …

Quantitative Demonstration Of Cell Surface Involvement In A Plant-Animal Symbiosis: Lectin Inhibition Of Reassociation, R. H. Meints, Rosevelt L. Pardy

School of Biological Sciences: Faculty Publications

The freshwater hydra, Hydra viridis is normally associated with Chlorella-like, algal symbionts which inhabit the host's digestive cells. Under experimental conditions bleached hydra will reassociate with algae harvested from green hydra, but not from our cultures of wild type Chlorella or strain NC64A which when originally isolated from Paramecium bursaria was symbiotically competent. Because of its demonstrated selectivity, the reassociation process is hypothesized to involve a recognition interface whose active participants are the algae cell wall and the digestive cell membrane. The data presented here confirm the hypothesis and suggest some potential molecular characteristics of the interacting partners. Concanavalin …

Quantitative Demonstration Of Cell Surface Involvement In A Plant-Animal Symbiosis: Lectin Inhibition Of Reassociation, R. H. Meints, R. L. Pardy

School of Biological Sciences: Faculty Publications

The freshwater hydra, Hydra viridis is normally associated with Chlorella-like, algal symbionts which inhabit the host's digestive cells. Under experimental conditions bleached hydra will reassociate with algae harvested from green hydra, but not from our cultures of wild type Chlorella or strain NC6₄A which when originally isolated from Paramecium bursaria was symbiotically competent. Because of its demonstrated selectivity, the reassociation process is hypothesized to involve a recognition interface whose active participants are the algae cell wall and the digestive cell membrane. The data presented here confirm the hypothesis and suggest some potential molecular characteristics of the interacting …

Proceedings Of Perdix Ii: Gray Partridge Workshop, Forest, Wildlife And Range Experiment Station, University Of Idaho, The Wildlife Society, Idaho Cahpter, Wildlife Management Institute

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Proceedings of Perdix II: Gray Partridge Workshop (March 18-20, 1980, Moscow, Idaho, United States)

The proceedings for this symposium have been divided into three parts: professional papers, a continent-wide management/research plan, and a bibliography. All of the papers were refereed by two or three people working in the field.

Papers Presented

The Distribution and Density of Gray Partridge in Northern New York, David E. Austin

Habitat Utilization by Gray Partridge (Perdix perdix L.) Prenesting Pairs in East-Central Wisconsin, Kevin E. Church, Hallett J. Harris, and Richard B. Stiehl

An Evaluation of Gray Partridge (Perdix perdix) Aging Criteria, …

Cultural Ecology: A Brief Overview, Michael C. Gunn

Nebraska Anthropologist

Cultural ecology is based on the interaction of culture, man and environment. To the understanding of this relationship the present paper discusses the origin and development of cultural ecology, the various applications and techniques of cultural ecology by the anthropological discipline, and finally, criticisms and future goals of an ecological anthropology.

Ecology is not an anthropological subdiscipline, nor is it even a standardized approach in anthropology. Ecology may be defined as the science dealing with the study of entire assemblages of living organisms and their physical milieus, which together constitute integrated systems. More simply, ecology is the study of the …

Human And Cultural Ecology: A Partial Bibliography, Michael C. Gunn

Nebraska Anthropologist

The following bibliography represents a partial listing of books and articles dealing with human and cultural ecology. Central to this bibliography are titles dealing with the conceptual and methodological aspects of human/cultural ecology as applicable to the broad field of anthropology. Also of primary importance are titles dealing with the anthropological use of population demography. Topics of related interest (general ecology, human adaption, bioenergetics, etc.) are represented by selected titles. While the bibliography falls far short of total citation of all articles dealing with the aforementioned topics, it should provide a firm base upon which the student or researcher may …

Agricultural Experiment Station News December 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
NEBRASKA WATER RESOURCES CENTER
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
STAFF NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – NOVEMBER 1979

Agricultural Experiment Station News November 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
STAFF NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – October 1979
BULLETINS PRINTED

New Developments In Bird Resistant Sorghums, Roger W. Bullard

Bird Control Seminars Proceedings

In recent years there has been a major shift of emphasis from lethal to nonlethal methods of controlling bird damage to agricultural crops. In addition to being unpopular, killing large number of birds has generally been ineffective because of rapid recovery of populations. Consequently, most of the methods that are now being investigated emphasize crop protection. Since sorghums are especially vulnerable to bird damage, considerable effort has been expended in the past 20 years to develop varieties that have morphological or chemical characteristics which are resistant to bird damage (Harris, 1969; Tipton et al., 1970; McMillian et al., 1972). Some …

Behavioural And Physiological Problems Associated With The Development Of Curb, Rufus J. Stone

Bird Control Seminars Proceedings

CURB is a harmless chemical repellent formulated and prepared to control avian and mammalian behavior which may result in losses of cultivated crops at all stages of growth, of food in storage, and also in behavior which may endanger health (e.g. dogs fouling) or life (e.g. birds on runways at airports). It is a fine powder, which may be wet- table for spraying when mixed with water; or it may be prepared for dry application. It is synergised aluminum ammonium sulfate. Its LD50 is greater than 5 gr/kg; it has passed the U.S.A. and French skin and eye mucosa tests …

Diets Of The Red-Billed Quelea (Quelea Quelea) In The Awash River Basin Of Ethiopia, W. A. Erickson

Bird Control Seminars Proceedings

An understanding of the feeding ecology of the red-billed quelea (Quelea quelea) is necessary for a comprehensive assessment of the potential impact of this species on cereals development. Queleas are reported to subsist primarily on wild Gramineae (Ward 1965a; Gaston 1976), but their mobility and tendency to feed in large aggregations readily adapts them to becoming a major cereal crop pest (Dyer & Ward 1977). Currently, conflicting evidence exists as to the factors involved in attacks on cereals and the relationship of depredation to the availability of wild foods. In Nigeria, Ward’s (1965a) findings indicated queleas prefer small wild grass …

Results Of The Ninth International Winter Wheat Performance Nursery Grown In 1977, S. L. Kuhr, K. D. Wilhelmi, V. A. Johnson, P. J. Mattern, J. W. Schmidt

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This is the ninth report of results from an International Winter Wheat Performance Nursery (IWWPN) organized in 1968 by the Nebraska Agricultural Experiment Station and the Science and Education Administration (SEA), U.S. Department of Agriculture, under a contract with the Agency for International Development, U.S. Department of State. The Nursery was designed to (1) test the adaptation and stability of winter wheat cultivars in a range of latitudes, daylengths, fertility conditions, water management regimes, and disease complexes; (2) identify superior winter cultivars to serve as recipient genotypes for high protein and high lysine genes, (3) test the degree of expression …

Agricultural Experiment Station News September 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – August 1979

Agricultural Experiment Station News August 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - July 1979
BULLETINS PRINTED

Germ Plasm Evaluation Program- Progress Report No. 7, Roman L.Hruska U.S. Meat Animal Research Center

Roman L. Hruska U.S. Meat Animal Research Center: Reports

The cattle Germ Plasm Evaluation Program has been conducted in three cycles. Cycle I involved breeding Hereford, Angus, Jersey, South Devon, Limousin, Simmental and Charolais bulls by artificial insemination (AI) to Hereford and Angus cows to produce three calf crops (Cycle I, Phase 2) in the spring of 1970, 1971 and 1972.

Cycle II, initiated with the 1972 breeding season, involved the Hereford and Angus cows used in the first cycle. These cows were bred by AI to Hereford, Angus, Red Poll, Brown Swiss, Gelbvieh, Maine Anjou and Chianina sires to produce two calf crops (Cycle II, Phase 2) in …

Agricultural Experiment Station News July 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
SEARCH AND SCREENING COMMITTEE PROGRESS REPORT
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – June 1979

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

Farm, Ranch and Home Quarterly

In this issue:

Exciting Events................. 2

Cracked Eggs Are No Yolking Matter.................. 3

Spinoff Research................ 5

Save Those Clippings!.................... 6

IANR Reaches Out- From Nebraska to the World................... 8

Rainbarrels and Reservoirs- Water Storage in Nebraska..................... 10

PUMP Helps Operators Trace Total Irrigation Costs.................. 14

Irrigation Weed Seed....................... 16

Telling the Water Level Story........................ 18

Family Importance and Satisfaction- Quality of Life................. 20

Fusarium Blight- A Common Disease in Bluegrass Lawns...................... 22

Composting Can Benefits Nebraska Communities.................... 25

93rd 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

Agricultural Experiment Station News June 1979

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 – May 1979
BULLETINS PRINTED

Agricultural Experiment Station News May 1979

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 – April 1979
BULLETINS PRINTED

Agricultural Experiment Station News April 1979

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTION
GRANTS & CONTRACTS
GENERAL NOTES
Journal Abstracts - Submitted for Publication
BULLETINS PRINTED
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - March 1979

Agricultural Experiment Station News February 1979

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 - January 1979

Ec79-551 Save Your Heart, Leon Rottmann

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 79-551 is about changing your habits to keep your heart healthy.

G79-476 Composition Of Feeds In Relation To Cattle Nutrition, Paul Q. Guyer, Foster G. Owen

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide examines the major nutritional components of cattle feed. Plants serve as the major source of feed for livestock. Nutrients required for maintenance and production are provided by various plants and plant derived feeds along with small amounts from non-plant sources. The major constituents of plants are water, carbohydrates, protein, fat, minerals and vitamins. Both plants and animals contain these nutrients, but the relative proportions vary more in plants.

Cc259 Revised 1979 How Much Protein Are You Eating?

University of Nebraska-Lincoln Extension: Historical Materials

Campaign Circular 259: This circular discusses the benefits of protein and addresses the issues with not getting enough protein in your diet. It also tells you how to calculate if you are getting the correct amount of protein each day.

G79-465 Urinary Calculi (Waterbelly) In Cattle And Sheep, Ivan G. Rush, Dale Grotelueschen

University of Nebraska-Lincoln Extension: Historical Materials

This publication discusses the symptoms, management and treatment of various types of urinary calculi diseases in cattle and sheep.

The term "urinary calculi" refers to deposits in the urinary tract. These deposits may block the flow of urine, particularly in male cattle and sheep. Prolonged blockage generally results in rupture of the urinary bladder or urethra, releasing urine into the surrounding tissues. This produces the condition commonly referred to as "waterbelly."

Two types of urinary calculi, both mineral in nature, predominate in cattle and sheep: (1) the phosphatic type formed principally under feedlot conditions and (2) the siliceous type occurring …

G79-467 Livestock Water Quality, Paul Q. Guyer

University of Nebraska-Lincoln Extension: Historical Materials

The purpose of this report is to discuss what is involved in livestock water quality and how one goes about getting an analysis that will help in determining this quality, and to assist in the interpretation of such an analysis.

A successful livestock enterprise requires a good water supply, both in terms of quantity and quality. While shortage is obvious to the stockowner, he sometimes needs the help of a laboratory in evaluating the quality of a supply. The purpose of this report is to discuss what is involved in livestock water quality and how one goes about getting an …