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Aquatic Ascomycetes From Lake Itasca, Minnesota, A. R. Cavaliere

Biology Faculty Publications

A preliminary report of the aquatic Ascomycetes of Lake Isasca, Minnesota. Included is an introduction, methods of harvesting and studying, a key, description, and illustrations of 19 common ascomycetous fungi inhabiting the study area.

The Doublegee Problem In Western Australia, D J. Gilbey

Journal of the Department of Agriculture, Western Australia, Series 4

Doublegee is native to South Africa and is now naturalised as a serious weed of crops and pastures throughout the temperate areas of Australia.

Doublegee was introduced for cultivation as a vegetable by English migrants to the Swan River Colony in 1830, and a bed of doublegees is known to have been sown at Mr. J. Phillips' property on the Canning River in 1833. However, the plant soon became a troublesome weed and its name was changed from Cape spinach to Tanner's curse and later to doublegee.

More than 180 doublegee seedlings per square metre have been counted in a …

Ec75-219 Nebraska Swine Report, William Ahlschwede, T. E. Socha, Alfonso Torres-Medina, A. J. Lewis, P. J. Cunningham, Dwane R. Zimmerman, E. R. Peo Jr., Larry K. Mcmullen, Bobby D. Moser, D. L. Ferguson, Phillip H. Grabouski, Murray Danielson, Charles W. Francis, L. F. Elliott, J. A. Deshazer, Roger W. Mandigo, W. J. Goldner, R. D. Fritschen, Gary Zoubek

University of Nebraska-Lincoln Extension: Historical Materials

This 1975 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.

Honey Bee Communication: The Dance-Language Controversy, James Leroy Gould

Student Theses and Dissertations

In recent years, the evidence suggesting that honey bees communicate with a "dance language" has been strongly attacked on both theoretical and experimental grounds. The controversy is reviewed and the main issues are isolated and discussed. The fundamental obstacle to the resolution of this important dispute has been that dancing bees advertise a food location with specific odor information as well as with symbolic distance and direction coordinates. Since recruited bees seem able to find food on the basis of site-specific locale odors alone, a conclusive test would be one in which the dancer gave symbolic directions to a location …

Peanuts For The Ord, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Peanuts were extensively tested in experiments on the Ord River in the early 1950s, but it is only recently that varieties better adapted to heavier soils have re-opened prospects of commercial production.

The new varieties remain dormant after maturity and an irrigation just before harvesting allows the crop to be lifted with the soil friable enough to reduce harvesting losses and the amount of soil sticking to the kernels.

These varieties have been extensively tested in Department of Agriculture trials at Kimberley Research Station since 1958, and preliminary recommendations for crop production and pest and disease control have been formulated.

Kenaf : A Possible Multi-Purpose Crop For The Ord River Irrigation Area, I M. Wood

Journal of the Department of Agriculture, Western Australia, Series 4

Kenaf is a tropical crop which shows promise for use in paper pulp, oil and protein production; the young growth is a nutritious animal feed.

It has proved a highly productive crop in the Ord River Irrigation area, raising speculation about its possible use as a commercial crop there. In this article a CSIRO research worker describes the properties of kenaf and reviews research results with the crop on the Ord

Lupinosis, M R. Gardiner

Journal of the Department of Agriculture, Western Australia, Series 4

In spite of many years of intensive investigation lupinosis remains a remarkably complex and baffling problem. Current research is throwing new light on the disease and it is now much better understood— although far from beaten.

Lupinosis research is co-ordinated by the Department of Agriculture's Lupinosis Committee, on which are represented all groups working on the disease. These include veterinary surgeons and pathologists, chemists, plant pathologists and animal husbandry specialists.

Chairman of the Committee is Dr M. R. Gardiner, Chief of the Department's Animal Division and a veteran of lupinosis research.

In this article Dr Gardiner summarises the current state …

Docks In Western Australia, J M. Allen

Journal of the Department of Agriculture, Western Australia, Series 4

A survey carried out by the Department of Agriculture has shown that docks are the most serious weed of the higher rainfall areas of Western Australia. They are estimated to cost farmers $400 000 annually in lost production. One of the main reasons why they are important weeds is that they regenerate rapidly from tubers and compete with desirable annual pasture species. Also the upright dock flowering stems are woody and unpalatable. Individual plants become intertwined and deter stock from grazing summer pastures.

Results from the survey of the dock problem are given in this article. The findings show that …

Biological Control Of Insects On The Ord. 1. Production Of Sitotroga Cerealella For Mass Rearing Of Trichogramma Wasps, M Grimm, P. J. T. Lawrence

Journal of the Department of Agriculture, Western Australia, Series 4

Department of Agriculture entomologists have developed a technique for the production and collection of eggs of the Angoumois grain moth (Sitotroga cerealella) for mass-rearing the parasitic waspTrichogramma pretiosum Riley.

Trichogramma is giving promising results in trials aimed at developing biological control of insect pests in the Ord River Irrigation Area.

Middle And Late Cenozoic Tapirs From Nebraska, C. Bertrand Schultz, Larry D. Martin, R. George Corner

Bulletin of the University of Nebraska State Museum (1924–2023)

The distribution and evolution of Late Cenozoic tapirs are discussed and the forms present in Nebraska are reported. Two new species are described from the Ogallala Pliocene of Nebraska, ?Tapirus johnsoni and ?T. simpsoni. Tapirs are known in Nebraska from the Early Oligocene through the Middle Pleistocene. The northern limit of the distribution of the tapirs contracts gradually southward in North America throughout the Tertiary, and even during the Pleistocene interglacials Nebraska must have been near the northern limit of their range.

Stratigraphic Occurrences Of Teleoceras With A New Kimballianspecies From Nebraska, Lloyd G. Tanner

Bulletin of the University of Nebraska State Museum (1924–2023)

Study of Teleoceras remains in the University of Nebraska State Museum indicates that this specialized, short-limbed rhinoceros inhabited the Central Great Plains from Early through Late Pliocene. Previously thought to have become extinct at the end of the middle Pliocene, this genus is now known from the very latest Pliocene. A new species, Teleoceras schultzi, is described from the Kimball Formation, Ogallala Group, Frontier County, Nebraska.

Interaction Of Lung Surfactant Lipids With Proteins Of The Alveolar Space, Peter Pagast

Dissertations

No abstract provided.

Amino Acid Changes During In Vitro Decomposition Of Marsh Plant Detritus, Armando A. De La Cruz, Kirit D. Chapatwala, William E. Poe

Gulf and Caribbean Research

Dead plant material was collected from a tidal marsh, ground to a uniform size (250 μm) and decomposed in vitro at 30°C in darkness for 36 days. Crude protein, total amino acids, and essential amino acids increased from 19.0 to 31.0 mg/g, 11.1 to 17.6 mg/g and 5.8 to 8.1 mg/g respectively from day 0 to day 36. The amino acid and crude protein values observed in the detritus are generally low but the increment during decomposition is considered significant in terms of the marine consumers that depend on highly decomposed detritus for food.

Pericardial Adhesions In The Cobia Rachycentron Canadum (Linnaeus), Harold D. Howse, James S. Franks, Robert F. Welford

Gulf and Caribbean Research

Pericardial adhesions are reported in diseased hearts of the cobia Rachycentron canadum (Linnaeus). The epicardium and pericardium are either tightly fused or connected by numerous thick collagenous adhesions over most of the heart surface.

Developmental Study Of The Tumorous-Head Strain Of Drosophila Melanogaster, Suzanne Frances Dorgan

Retrospective Theses and Dissertations

No abstract provided.

Extracts From The Department Of Agriculture's Annual Report, 1974-75, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The Department of Agriculture's Annual Report for the year ended June 30, 1975, took the form of short reviews of selected activities of the Department during the year.

Some of these reviews are reprinted below to give an idea of the range of activities undertaken by the Department. A limited number of copies of the full report are available to interested organisations from the Department of Agriculture, Jarrah Road, South Perth, 6151.

In past years the Department's report has taken the form of a relatively detailed technical summary of the work of each Division. Because of the large volume of …

1975 Trials On Doublegee, D J. Gilbey

Experimental Summaries - Plant Research

75A16, 75A17, 75C13, 75MO36, 75MO37, 75WH21, 75WH22. Biological control of doublegee.

Preliminary Dove Banding Studies In Clark County, Arkansas, Thurman Booth, Peggy Rae Dorris, William N. Hunter, Benny Mays

Journal of the Arkansas Academy of Science

In conjunction with the U.S. Department of Interior Fish and Wildlife Service, Henderson State University Biology Department made a preliminary study of mourning doves in Clark County, Arkansas, during June, July and August 1974. Three hundred seventy-one mourning doves were baited, trapped and banded to obtain information concerning age, sex, populations, retraps, deformities, effects on other animals, migrations and other behaviors.

Preliminary Checklist Of The Fishes Of The Illinois River, Arkansas, Michael R. Geihsler, Edgar D. Short, Paul D. Kittle

Journal of the Arkansas Academy of Science

A survey of the fishes of the mainstream of the Illinois River in northwestern Arkansas produced 51 species representing 11 families. Four of these species, Ictiobus bubalus, smallmouth buffalo; Moxostoma carinatum, river redhorse; Lepomis gulosus, warmouth; and Percina phoxocephala, slenderhead darter, have not been recorded previously from the Arkansas part of the Illinois. Eleven additional species have been reported previously that were not collected during this survey, for a total of 62 species known in the Illinois River.

Age And Growth Of Bluegill, Lepomis Macrochirus Rafinesque, From Lake Fort Smith, Arkansas, Jacob J. Hogue, Raj V. Kilambi

Journal of the Arkansas Academy of Science

A total of 337 bluegill from Lake Fort Smith were used for this study. Annuli were formed between late February and early June, the younger fish forming annuli earlier than older fish. Total length-scale radius and length-weight relationships were determined. Growth of bluegill was compared with that reported in other studies. Growth curves were analyzed by the Von Bertalanffy growth formula and the parameters were evaluated in terms of physical and biological factors.

Arkansas Butterflies And Skippers, Leo J. Paulissen

Journal of the Arkansas Academy of Science

Since 1955 the writer has been compiling information on Arkansas butterflies and skippers. A list of species is presented from data obtained from personal collecting, extensive contacts with contemporary collectors, and a concerted literature search. A total of 151 species are listed on a chart which also shows from which of five designated areas in the state each species has been reported.

Factors Affecting The Development Of Lipase Flavor In Butter, Lawrence I. Bell

Electronic Theses and Dissertations

Current trends in the dairy industry have resulted in an increase in the incidence of lipase flavored butter. Raw cream, fresh and aged 24 h, was divided into 3 fractions and heat treated at temperatures of 72 C, 85 C, and 93 C. Each fraction of cream was churned into butter, with the butter divided and stored at -28. 9 C and 4.4 C. Lipase flavor development was measured organoleptically, by acid degree value (ADV), and free fatty acids (FFA) using a colorimetric procedure. Age of the cream had a significant effect (P< .01) on FFA and. ADV .levels, whereas heat treatment .of the cream had a significant effect (P< .01) on flavor only. Storage time had a significant effect (P< .01) on FFA, ADV, and flavor and the temperature of storage had a significant effect (P< .01) on FFA ·and flavor. Correlation between FFA and ADV was 0.86. There was no correlation between flavor and either JTFA or ADV

Amino Acid Additions To A Low Protein Corn-Soy Diet For Egg Production, Ali Baghaye Kashani

Electronic Theses and Dissertations

The present study was conducted to determine if the protein level of layer diets could be lowered from the: commonly used 16 percent to 12 percent by supplementation of some of the essential amino acids without reducing the performance of hens. The amino acids used were methionine, lysine, tryptophan and isoleucine. Egg production, egg shell thickness, interior egg quality, body weight, feed efficiency and free amino acid content of the albumen of eggs produced were criteria used to measure the (--) to treatment.

A Faunal Study Of Illinois Silphidae (Coleoptera), Brian Baldwin

Masters Theses

A faunal study of the family Silphidae in Illinois was made through examination of over 1400 specimens. A brief history of the taxonomy of the family and a description of silphid ecology was presented. Keys to the tribes, genera, and species of adult Silphidae occurring in Illinois were divised. Four genera and sixteen species of silphids are described, supplemented with drawings and distribution maps.

Fungicides And Insecticides For Control Of Rose Pests, Paul F. Webb

Masters Theses

The author was requested by a representative of the Ortho Chemical Company to test various fungicides and insecticides on hybrid tea roses.

Roses are one of the most time consuming and most difficult ornamentals to manage due to several diseases and insects that attack them. Two of the first and foremost skills that the author had to acquire were the proper planting and the subsequent care of roses.

The purpose of the research project was to compare the effectiveness of experimental products with presently available fungicides and insecticides. Before new chemicals can be marketed much data must be collected to …

A Statistical Approach To The Study Of The Ecosystems Of Seven Ponds In East-Central Illinois, Gregory Lee Orr

Masters Theses

Gross primary productivity, heterotrophic bacterial numbers, and net phytoplankton densities of seven ponds in Coles County, Illinois, were studied in relation to physical, chemical, and biological habitat variables (light intensity and duration, turbidity, water temperature, pH, dissolved oxygen, sulfur, nitrogen, phosphorus, production, bacteria, and phytoplankton). Ten observations were made for each pond (except where otherwise noted) from 17 June through 25 August 1974. Stepwise multiple linear regression analyses of the data were used in order to determine those environmental factors which were important in predicting (i.e., significantly correlated with) bacterial and phytoplankton densities, and production. A multiple linear regression equation …

Treflan And The Oxygen Consumption Of Green Sunfish (Lepomis Cyanellus), Barbara Jo Warner

Masters Theses

Oxygen consumption rates of 51 green sunfish (Lepomis cyanellus, Rafinesque) were monitored over five hours exposure to Treflan E.C. concentrations of 0, 0.32, 0.56, 1.0, and 2.0 ppm. There was a great variation in the responses of the fish at each concentration; and Student's t-tests revealed no significant differences. However, graphs of the mean hourly oxygen consumption rates showed certain trends. During the fifth hour of exposure, there appears to be an acclimation to the Treflan at concentrations of 0.32 and 0.56 ppm; but no such acclimation at the higher concentrations of 1.0 and 2.0 ppm. Hourly oxygen …

Parasites Of Channel Catfish In Illinois Hatcheries, Charles Dale Meryman

Masters Theses

Ninety channel catfish (Ictalurus punctatus) were trapped during September 1973 through April 1974 at three hatcheries located at Worden, Centralia, and Kinmundy, Illinois. All were examined for parasites and 87 were parasitized. The trematodes Azygia angusticauda and Neascus sp. were found in the gastrointestinal system and Cleidodiscus floridanus and Dactylogyrus sp. were attached to the gills. Five cestode genera, including Bothriocephalus sp., Corallobothrium giganteum, Eubothrium sp., Haplobothrium sp., and Proteocephalus ambloplitis were present. Rhabdochona sp. was the only nematode found. Protozoans; Costia sp., Myxobolus sp., Scyphidia macropodia and Trichodina discoidea and one kind of glochidium were observed. …

Aquatic Plant Communities Of Vermilion County, Illinois, John A. Wiedman

Masters Theses

No abstract provided.

Philip A. Munz, Botanist And Friend, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.