Digital Commons Network^™

Stop ... Hog Cholera Losses, E. Crosby Howe

University of Nebraska-Lincoln Extension: Historical Materials

HOG CHOLERA ERADICATION SAFEGUARDS the PORK INDUSTRY . " Eliminates expense of hog cholera .vaccination. Improves health status of hogs by freeing them from chronic cholera. Insures a constant supply of pork products at competitive price. Increases export of Nebraska pork to foreign markets. Stimulates pride in Nebraska's role in aiding in the National Hog Cholera Eradication Program.

Ec65-213 Results Of Ogallala And Schuyler Beef Testing Stations

University of Nebraska-Lincoln Extension: Historical Materials

No abstract provided.

Ec65-166 A Hand Sprayer For Herbicides, C. Fenster

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-166 introduces a hand sprayer for herbicides.

Ec65-1506 Insect Control Recommendations For Household And Pets In Nebraska

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1506 is about insect control recommendation for household and pets in Nebraska.

Ec65-1186 Art Elements Related To Home Furnishing, Magdalene Pfister

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1186 is about art elements related to home furnishing.

Kill And Migration Patterns Of The Seney Goose Flock, Glen A. Sherwood

United States Fish and Wildlife Service: Publications

An intensive investigation into the limiting factors and behavior of the Seney Canada goose (Branta canadensis maxima -- Hanson, 1965) flock was conducted from June, 1962 to August, 1965. A portion of the study findings, concerning kill and migration patterns, is reported here.

The 95,500 acre Seney National Wildlife Refuge is situated in the east-central sector of Michigan's upper peninsula, in the southwest quadrant of land formed by the junction of state highways M-77 and M-28. It is composed of four broad habitat types of which approximately 400 acres are cropland, 26,900 acres upland brush and timber, 61, 000 …

Miocene Mammals And Central American Seaways, Frank C. Whitmore Jr., Robert H. Stewart

United States Geological Survey: Staff Publications

The fossil mammal faunas of North and South America indicate that the two continents were separated from Paleocene or earlier time until the late Pliocene. Unfortunately our almost complete ignorance of the Tertiary land mammals of Central America, the geology of this large area, makes reconstruction of the Tertiary zoogeography of the region between the continents an exercise involving considerable speculation.

4-H Range Management Project--Unit 2, Grades 7-9 : Extension Circular 1-32-65, John Valentine

Nebraska 4-H Clubs: Historical Materials and Publications

Curriculum set up for Unit 2 grades 7-9 of this Range management project in 4-H.

The Watershed Look ...At Soil And Conservation : Extension Circular 5-35-65, John W. Neuberger, Harold H. Gilman

Nebraska 4-H Clubs: Historical Materials and Publications

INTRODUCTION Why This Project Is Important to the 4-H Member Soil and water conservation is wise use and care of the two most important natural resources—soil and water—for the greatest good, for the most people, for the longest time. How wisely our soil and water conservation problems are solved will be reflected in the wealth and spirit of tomorrow's people. A working knowledge of the watershed approach to land protection and flood reduction is important for planning community size programs. Those who practice soil and water conservation on the land have taken the first step toward solving their water problems …

Ec65-533 Christmas In An Envelope, Clara Leopold

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-533: Christmas in an envelope, how holiday cards have progressed throughout time.

Ec65-1273 Revised 1965 Chrysanthemum Culture In Nebraska, Glenn Viehmeyer, Wayne Whitney

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1273 is about the chrysanthemum culture in Nebraska.

1965 Beef Cattle Progress Report Of Research Activities, E. F. Frolik, H. H. Kramer

Nebraska Beef Cattle Reports

Beef carcass evaluation work is designed to obtain production and carcass data on bulls, steers and heifers. One objective is to evaluate sex effects on growth and carcass traits. Another is to determine if sires rank the same in growth and carcass traits on their bull, steer and heifer progeny.

Preliminary results from the 1963 slaughter groups were reported in the 1964 Beef Cattle Progress Report. This report covers averages of 1963 and 1964 results. Results both years were similar.

Nebraska Bird Review (January 1965) 33(1), Whole Issue

Nebraska Bird Review

Table of Contents

Bird Records from Northern Nebraska during the Breeding Season...................2

Two Species of Ibis Seen in Nebraska in May, 1964 ...................6

Nesting Report, 1964 ...................9

Scissor-tailed Flycatcher Nesting in Clay County................... 14

Song Sparrow Nesting at Plattsmouth ...................14

A Changed Habitat ...................15

General Notes................... 18

Excerpts from Letters ...................19

Fall Field Day ...................20

Heritability Estimates Of Udder Disease As 5ieasured By Various Tests And Their Relationship To Each Other And To Milk Yield, Age, And Milking Tisies, G. H. Schmidt, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Paternal half-sib heritability estimates oi' milk yield, number of quarters infected with mastitis organisms, and number <>f quarters showing abnormal mill; were obtained from an analysis of milking and mastitis data of 2,865 Holstein cows. The within-herd heritability estimate for daily milk yield was 0.353 and that for the number of quarters infected with Streptococcus agalactiae 0.196. The heritability estimates for the number of quarters infected with organisms other than Streptococcus agalactiae, number of quarters infected, and number of quarters showing abnormal milk were all below 0.1.

Within-herd correlation coefficients were calculated among daily milk yield, milking data, age, …

Luteotropic Properties Of Luteinizing Hormone And Nature Of Oxytocin Induced Luteal Inhibition In Cattle, Lloyd Donaldson, William Hansel, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Fifty-three Holstein heifers were used to study the effects of oxytocin administered alone and in combination with various gonadotropins on the weights and progesterone contents of corpora lutea. Pituitary gonadotropin levels were compared in untreated and oxytocin-treated heifers at three stages of the estrous cycle.

Oxytoein injections on Days 2 through 6 significantly reduced the weights and total progesterone contents but not the progesterone concentrations of glands removed on Day 7. The concurrent administration of either purified bovine luteinizing hormone (LH) or human chorionic gonadotropin (HCG) significantly increased these parameters from the oxytocin treatment levels to normal or supra-normal values. …

Handbook Of Waterfowl Behavior: Frontmatter And Introduction, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

Acknowledgments
Contents
List of Illustrations
Background and Objectives of This Study
Value and Limitations of Behavior as a Taxonomic Tool
Biological Characteristics of the Family Anatidae

Handbook Of Waterfowl Behavior: Tribe Anseranatini (Magpie Goose), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The first subfamily and tribe of the Anatidae consists of the single genus and species Anseranas semipalmata, or magpie goose. This species deviates in almost every respect from the rest of the Anatidae, and anatomical evidence indicates that it has some affinities with the South American family of screamers, the Anhimidae (Delacour, 1954; Woolfenden, 1961). The screamers are a group of semiterrestrial birds which in turn have some of the characteristics of gallinaceous birds. It appears that the screamers and the magpie goose represent major stages in the evolution of the typical waterfowl from a gallinaceous ancestor. Besides the …

Handbook Of Waterfowl Behavior, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The present study was undertaken to test and evaluate the various taxonomic arrangements of the family, to discover some of the trends of behavioral evolution, and to provide a basis for future workers to use in naming, describing, and evaluating the behavioral patterns observed in waterfowl.

The major sexual behavior patterns of the species of Anatidae are reviewed and summarized, for the purpose of clarifying evolutionary relationships in the family, tracing the evolution of behavior patterns through various taxa, and evaluating the importance of certain behavior patterns as potential isolating mechanisms.

Species treated include:
Magpie Goose, Fulvous and Cuban Whistling …

Handbook Of Waterfowl Behavior: Tribe Dendrocygnini (Whistling Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The whistling, or "tree," ducks comprise a group of eight species of world-wide, though primarily tropical, distribution. A single genus, Dendrocygna, is generally accepted, and indeed the species form such a homogeneous group that it is extremely difficult to establish intrageneric differences upon which to judge probable species relationships. In most respects, whistling ducks are very gooselike, differing from geese mainly in their more specialized tracheal structure, their whistling voices, and their distinctive downy plumage patterns. They possess relatively long legs and large feet, and they can dive remarkably well.

Handbook Of Waterfowl Behavior: Tribe Anserini (Swans And True Geese), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The swans and true geese of the present tribe include about 21 species which are primarily temperate and arctic in distribution, with most forms occurring in the Northern Hemisphere. They are generally large grazing or dabbling birds, and all are highly social and have strong family bonds. Plumage patterns are the same in both sexes and tend to be relatively simple, with visual signal characteristics generally restricted to the bill, head, and rump. For the most part the species are very vocal, and in the true geese vocalizations probably reach the highest degree of development in the entire family.

Handbook Of Waterfowl Behavior: Tribe Stictonettini (Freckled Duck), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

I include the Australian freckled duck, as the only member of a proposed tribe Stictonettini, as I originally suggested in 1960 on a tentative basis. Previously the freckled duck had been generally considered an aberrant dabbling duck with several primitive features, such as a reticulated tarsus, simple tracheal structure (illustrated in Johnsgard, 1961c), and absence of metallic plumage coloration or distinct plumage dimorphism. No hybrids have been recorded involving this species, which occurs widely but infrequently over the southern half of Australia.

Handbook Of Waterfowl Behavior: Tribe Tadornini (Sheldgeese And Shelducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The tribe includes the 16 species of sheldgeese and shelducks ("Lophonetta" and Tachyeres are here excluded from the tribe) which provide such a smooth transition from the true geese to the true ducks that it is difficult to establish a dividing line between the two groups. I believe that the line is best placed between Cereopsis on the anserine side and Cyanochen on the anatine side. Cyanochen is clearly a sheldgoose, but the plumages and voices of the sexes are practically alike, as are also their displays. Cyanochen and the other Tadornini are characterized by a downy plumage that is …

Handbook Of Waterfowl Behavior: Tribe Tachyerini (Steamer Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

I consider the three species of steamer ducks of the genus Tachyeres to constitute a separate tribe. These authorities agree that although steamer ducks are perhaps most closely related to the true shelducks, the steamers are sufficiently different to warrant removing them from the shelduck tribe. Their downy young lack the strongly contrasting coloration typical of shelducks, and the adult plumage pattern is distinct both from that of the shelducks and from that of the other anatine groups. There is a slight sexual dimorphism in bill color, head color, and possibly in the degree of tail-feather curling. Pair bonds appear …

Handbook Of Waterfowl Behavior: Tribe Cairinini (Perching Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

Delacour and Mayr (1945) placed the perching duck tribe after the pochards (Aythyini) and adjacent to the sea ducks (Mergini), but hybridization evidence (Johnsgard, 1960a) clearly indicates that the group belongs between the shelducks and the dabbling ducks and closely adjacent to the latter. There is other evidence to support this arrangement. The tracheae of shelducks, perching ducks, and dabbling ducks are all very similar, possessing bullae which in most species are osseous and rounded, and lacking enlargements of the tracheal tube. The downy young of perching ducks and dabbling ducks are very similar, and are usually patterned with dark …

Handbook Of Waterfowl Behavior: Tribe Anatini (Surface-Feeding Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The tribe of surface-feeding, or dabbling, ducks is the largest single tribe in the family. There are 40 species in the tribe as it is constituted here. Contrary to the arrangement of Delacour (1956), the ringed teal is included in the Cairinini; and the crested duck, included in the Tadornini by Delacour, is here considered a typical dabbling duck. In addition, the pink-headed duck has been removed from the Anatini and placed in the Aythyini with the pochards, and the freckled duck has been removed from the tribe and is considered a primitive species having anserine relationships. The marbled teal …

Handbook Of Waterfowl Behavior: Tribe Aythyini (Pochards), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The dabbling ducks grade almost imperceptibly into the pochard group considered here, and whether Marmaronetta and Rhodonessa should be included in one tribe or the other may be open to some question. As here constituted, the tribe includes 16 species of almost world-wide distribution which differ from the preceding group in several minor details. The hind toe has a larger lobe than occurs in the dabbling ducks, and it presumably aids in diving. The feet are also correspondingly larger and are set farther apart and more to the rear than in Anas. One of the most clear-cut differences is …

Handbook Of Waterfowl Behavior: Tribe Mergini (Sea Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The tribe includes 20 species of which two are extinct. Except for two Southern Hemisphere species, the group is of northern and arctic distribution. All species consume a high proportion of animal material, although they are by no means all "sea" ducks. All dive extremely well, although the manner of diving varies in that some species usually open their wings when diving and others never do. All the species except the isolated Southern Hemisphere forms exhibit considerable sexual dimorphism in plumage, voice, and behavior, and there is much sympatry of ranges. Some genera (Somateria, Polysticta, Clangula, …

Handbook Of Waterfowl Behavior: Tribe Oxyurini (Stiff-Tailed Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The stiff-tailed ducks constitute a unique section of the Anatidae that is possibly the most isolated of all the tribes with the exception of the Anseranatini. There are eight species which almost certainly belong in the group, plus one more that is only very tentatively included. The tribe is of worldwide occurrence. Seven of the species have long, narrow, and stiffened tail feathers that function as rudders in underwater swimming, at which all species are very adept. These species also have a dense and shiny body plumage much like that of grebes, but lack metallic coloration altogether. The typical species …

Handbook Of Waterfowl Behavior: Summary And Synopsis Of The Family Anatidae, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The major sexual behavior patterns of the species of Anatidae may now be reviewed and summarized, for the purpose of clarifying evolutionary relationships in the family, tracing the evolution of behavior patterns through various taxa, and evaluating the importance of certain behavior patterns as potential isolating mechanisms.

Handbook Of Waterfowl Behavior: Works Cited, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

Approximately 150 works cited. (7 pages)