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Improvement Of Beef Cattle Through Breeding Methods. Summary Of Results From Regional Project Nc-1, Larry V. Cundiff, Keith E. Gregory

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This publication is a revision of North Central Regional Publication 120, published by the Nebraska Agricultural Experiment Station (Research Bulletin 196) in July, 1961. It summarizes the more important results from this project during its first 19 years of operation. It is by no means complete and includes only what is considered to be the "highlights" of findings at this time. A bibliography of all publications that provided the basis for this summary statement is included. This publication is in the nature of a progress report on many aspects of beef cattle breeding research. Although it is based on considerably …

Selection Of Dairy Cows For Economic Merit, J. W. Wilton

Department of Animal Science: Faculty Publications

Selection of dairy cows for economic merit requires the use of a model for genetic merit that involves the cross-product of the genetic values for milk and milk fat percentage. A linear and a quadratic index are described as procedures for selection of cows, the linear index being b₁p_m + b₂p_t and the quadratic index being b₁p_m + b₂p_t + b₂p_m² + b₄p_t² + b₅p_mp_t where p_m and p_t are the phenotypic deviations …

Whole Issue Nebraska Bird Review (April 1968) 36(2)

Nebraska Bird Review

TABLE OF CONTENTS

Growth of Nestling Goldfinches Compared to Adult Size and Differential Development Rate of Structures in Relation to their Function ......................22

Winter Meeting......................32

A Golden Eagle Nest in'the Pine Ridge......................33

1967 Nebraska Nesting Survey......................35

1967 Christmas Count......................42

1968 Migratory Bird Stamp......................46

Notes......................46

Treasurer's Report......................48

Distributional Changes And Interaction Between Prairie Chickens And Sharp-Tailed Grouse In The Midwest, Paul A. Johnsgard, Robert E. Wood

Papers in Ornithology

The "prairie grouse" of North America present an interesting example of the effects of human activities on breeding distribution patterns of birds, with resulting changes in geographic distribution and spacial isolation. Thus, the Heath Hen (Tympanuchus cupido cupido) was one of the most familiar birds to the early colonists, who relied heavily on it for food. Ultimately, loss of habitat caused the Heath Hen's extinction. When the vast tall-grass prairies west of the Appalachians were settled, Greater Prairie Chickens (T. c. pinnatus) were probably more plentiful, and greatly increased as woods were cleared and grain crops supplemented native grasses. With …

Variation Of Milk Records Within Paternal-Sib Groups, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Differences between daughter-dam and paternal sib estimates of heritability of first lactation milk yield have not been explained for New York data. Deviations of first lactation records from herdmate means of 155,070 artificially sired Holsteins were analyzed to examine the effect of unequal within group variances on the paternal sib estimate of heritability. The statistical model used to describe the data was y_y = μ + s_i + e_iy with σ ²yi = σ ²_s + = σ²_ei. Estimates of the within sire-group variances, σ₁ ²_ei, were heterogeneous (P …

Influence Of Advance In Season On Nutritive Value Of Forage Consumed By Cattle Grazing Western Nebraska Native Range, C. L. Streeter, D. C. Clanton, O. E. Hoehne

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The purpose of this study was to determine the influence of the advance in season on the nutritive value of forage consumed by cattle grazing western Nebraska summer range. Eleven digestion trials were conducted during the summer grazing season of two consecutive years.

The Prairie Naturalist Volume 1. No.1. March 1968

The Prairie Naturalist

EDITORIAL: Another Milestone ▪ John T. Lokemoen

NESTING OF THE COMMON SNIPE IN NORTH DAKOTA ▪ Robert E. Stewart and Harold A. Kantrud

SCIENCE WRITING — A PROBLEM ▪ Soren O. Kolstoe

INSECTICIDES: A DOUBLE-EDGED SWORD ▪ Richard D. Urban

NOTES

Why I like the Badlands ▪ Wayne Hecker

White-faced ibis in McIntosh County, North Dakota ▪ Harold F. Duebbert

Cinnamon teal observations in North Dakota ▪ A. T. Klett and John T. Lokemoen

Trumpeter swan in Kidder County, North Dakota ▪ Lewis M. Cowardin and James C. Bartonek

Specimen records of greater scaup ▪ Charles W. Dane and Harold …

Agroclimatic Calendar For Nebraska, R. E. Neild

School of Natural Resources: Faculty Publications

Crops are planted so growth, development and harvest correspond closely to the season most favorable for yield and quality. With exception of fall-seeded small grains and some forages, most Nebraska crops are planted in the spring when temperature and precipitation are increasing.

Problems Of Epidemiological Geography (Report Viii): Structure Of A Zoonosis Nosoareal, I.I. Yelkin, V.K. Yaschkul

Zoonotics and Wildlife Disease: Publications

The Main structural indices of a nosoareal are the focalress in the distribution of infectious diseases of man and their causative agents. The problem of the focalness of infections has been developed for quite a long time in the field of parasitology and is a very important division of contemporary epidemiology (Ye. N. Pavlovskiy, 1939, 1944, 1955, 1960, 1961, 1964; L. V. Gromashevskiy, 1941, 1949, 1965; I. I. Yelkin, 1951, 1960, 1962; P. A. Petrishcheva, 1955, 1959, 1965; V. N. Beklemishev, 1956, 1959, 1961; Yu. M. Rall, 1958, 1965; V. V. Kucheruk, 1959, 1960, 1965; A. G. Voronov, 1965, and …

The Evolution Of Duck Courtship, Paul A. Johnsgard

Papers in Ornithology

The courtship of ducks is unusual in several aspects. In temperate zones it generally begins very early, usually on the wintering grounds, so courtship is not a manifestation of territorial proclamation and defense as is the case with many songbirds. Nor, because of its early initiation, is courtship closely correlated with gonad growth and fertilization; rather, pair formation is normally completed prior to the period of maximum gonadal activity. Therefore, reproductive behavior in ducks may be conveniently divided into an early phase of conspicuous displays associated with actual pair formation, followed by the later and less elaborate behavior patterns concerned …

Soil And Water Conservation : Extension Circular 5-31-68, Harold H. Gilman, Russell E. Weiss

Nebraska 4-H Clubs: Historical Materials and Publications

A Beginning project in soil and water conservation for 4-H clubs.

Ec68-178 Lawn Weeds And Their Control, J. D. Furrer

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-178: Lawn Weeds and their control; identification and descriptions, control methods such as chemical control or mechanical control.

Ec68-649 Why Milk Fat Tests Vary, C. Nibler, F. Owen, T. Evans

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-649 discusses why milk fat tests vary.

Ec68-129 Nebraska Swine Progress Report

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-129 is the 1968 Nebraska Swine Progress Report.

Ec68-837 Feeding Cattle? How Much Can You Afford To Pay?, Philip Henderson

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-837 discusses feeding cattle and how much you can afford.

Ec68-1905 Prevent Worms...To Increase Sheep Profits, Donald Ferguson, Crosby Howe

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-1905 is about preventing the spread of worms to increase sheep profits.

4-H Dairy Beginning Manual--Grade School Age (4,5,6) : Extension Circular 2-51-68, Philip H. Cole

Nebraska 4-H Clubs: Historical Materials and Publications

Beginning manual for raising dairy cows in grades 4,5,6.

Ec68-130 A 1968 Guide For Chemicals That Control Weeds, Laren Robison, Dave Nuland, John Furrer

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 68-130 is about a 1968 guide for chemicals that control weeds.

Ec68-1517 Principal Stored Grain Insects In Nebraska, Robert E. Roselle, Lloyd Andersen, David Keith

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-1517: Principal Stores grain Insects in Nebraska.

Ec68-1514 1968 Chemical Suggestions For Community Fly And Mosquito Control Programs In Nebraska, Lloyd Andersen, Robert E. Roselle, David Keith

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-1514: 1968 Chemical Suggestions for Community Fly and Mosquito control programs in Nebraska; Fly control, residual sprays for adult fly control, larval control, mosquito control, mosquito larval control, adult mosquito control, residual spray application, outdoor space spraying, mist blowers, aerial spraying for mosquito control, and guidelines for the spray operator.

Ec68-218 1968 Nebraska Beef Cattle Progress Report

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-218 contains the 1968 Nebraska Beef Cattle Progress Report.

Land Judging In Nebraska : Extension Circular 5-36-68, Harold H. Gilman

Nebraska 4-H Clubs: Historical Materials and Publications

CONTENTS Introduction Soil How land use is determined The national scheme of soil classification How to prepare for a land judging contest The Nebraska land judging score card Part I The heading Depth favorable to root development Surface texture Permeability of subsoil Thickness of surface soil Wetness or overflow Slope Erosion-water and wind Organic matter Part II Land capability classes Part III Land treatment Problems and Answers Glossary of land judging terms 4-H

Business In Nebraska #281, February 1968, Dorothy Switzer, E. L. Burgess

Business in Nebraska

Exports of Nebraska Manufacturers (Dorothy Switzer)

Total exports of manufactured goods from Nebraska amounted to almost 55 million dollars in 1966, according to data revealed recently in the revised published report of a study made by the Bureau of the Census of the U.S. Department of Commerce. Figures from Nebraska fully confirm the spectacular increase in exports of the state's manufactured products reported in the August, 1967, issue of Business in Nebraska, and based on data collected in a Bureau of Business Research survey of a sample of Nebraska manufacturers. The national study also corroborates the local survey as …

A Brief History Of The Namru-3 Medical Zoology Program, Harry Hoogstraal

United States Naval Medical Research Unit 3: Publications

The NAMRU-3 Medical Zoology program began during Easter week of 1950. We had just closed the NAMRU-3 field station at Torit, in Equatoria Province of soulheastern Sudan, and were heading homeward to the United States. However, the offer to remain in Egypt for a year or two to develop a Medical Zoology department at NAMRU-3 provided an interesting challenge after working for several years in tropical forests and grasslands of Africa and other continents. We shall briefly describe subsequent events under four headings: (1) Medical Zoology in Egypt, (2) Ticks and Tickborne Diseases of the World, (3) Kala Azar in …

Ec68-1516 Common Household Pests In Nebraska, Robert E. Roselle, Lloyd Andersen, David Keith

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-1516: Common household Pests in Nebraska.

Ec68-1501 Entomology : Use Insecticides Safely, Robert E. Roselle, Carol Angle

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 68-1501: Entomology-Use Insecticides Safely; kinds of insecticides, avoid illegal residues, protect fish and wildlife, safety rules, and emergency treatment of insecticide poisoning information for physicians.

Whole Issue Nebraska Bird Review (Jan 1968) 36(1)

Nebraska Bird Review

TABLE OF CONTENTS

1967 (Forty-second) Spring Migration and Occurrence Report ...................2

Notes ...................10

Swans ...................16

1967 Fall Field Day...................19

Pritchard Designs 1968 "Duck" Stamp ...................20

In Memoriam - Leroy M. Gates ...................20

Weight Gain And Carcass Measurements Of Pigs From Gilts Fed Adequate Vs. Protein-Free Diets During Gestation, W. G. Pond, J. A. Dunn, G. H. Wellington, J. R. Stouffer, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Fifty-two weanling pigs from six litters(Pond et al., 1968) were fed a standard 18% protein corn-soybean meal diet from weaning to slaughter. The six litters were from gilts paired on the basis of parturition date so that one gilt fed the control diet and one fed the “protein-free” diet (0.5% protein) from week 4 of pregnancy to parturition made tip each pair. Each dam was fed the control diet throughout lactation and nursed one-half of her own litter and one-half of a pairmate’s litter resulting from reciprocal transfer of one-half of each litter at birth. Individual bodyweight gains and feed …

Relationships Among The Parameters Of Milk Production, Constituent Production, And Constituent Percentage, J. W. Wilton, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

A method of finding the parameters pertaining to one of the variables of milk production, constituent production, and constituent percentage when the parameters pertaining to the two other variables are known is presented. The method is based on the expectation of products of random variables. This method and the delta approximation method are compared to sampling estimates from simulated data.

Business In Nebraska #290, November 1968, Dorothy Switzer, R. L. Busboom

Business in Nebraska

Role of Homegrown Industries in the Nebraska Economy (Dorothy Switzer)

Because the exodus from farm to city is continuing in Nebraska, it is necessary that industrial development to accelerated to provide employment for displaced agricultural workers who will have to migrate to other states unless suitable work can be provided for them here. From time to time Business in Nebraska has called attention to the state's homegrown industries that provide employment opportunities for significant numbers of workers. These articles have invariably elicited much interest and evoked requests for other success stories about innovative Nebraska enterprises.

Business Summary (R. L. Busboom) …