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Murine Circadian Susceptibility-Resistance Cycle To Acetylcholine, Frank Jones, Erhard Haus, Franz Halberg

Journal of the Minnesota Academy of Science

The detection of a circadian ( about 24- hour) susceptibility-resistance cycle to acetylcholine by spot checks on mortality from this agent will be here presented. The study was done under conditions standardized to some extent for 24-hour routine-synchronized circadian system analysis ( 1). Sampling was limited to only two time points along the 24-hour scale. Hence, results represent a spot check rather than a circadian map. The conclusions to be drawn from these data have been confirmed, in the interim, with more frequent sampling. The data to be reported constitute further evidence that circadian system structure (2) involves significant and …

Rabbit Fumigation, C D. Gooding

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

Not all poisons act by absorption from the alimentary tract or through the skin, the fumigants are a big group of poisons used in pest control which act on the animal after being absorbed through the lungs.

FUMIGATION as it is now used in Western Australia is not always an economical way of treating whole farm properties. It should only be used on its own in areas where it is impossible to use other more permanent methods such as warren destruction.

Selenium And Sheep Health : A Review Of White Muscle Disease Investigations In W.A, M R. Gardiner

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

SELENIUM, the latest trace element to be investigated in medicine, biology and agriculture, has been found to be essential in the prevention of a wide variety of animal diseases in various parts of the world.

Behavioral Isolating Mechanisms In The Family Anatidae, Paul A. Johnsgard

Paul Johnsgard Collection

The ducks, geese, and swans present a host of species-recognition and isolating-mechanism problems that are equaled by few other groups of birds. As a family, the Anatidae have provided the greatest number of interspecific hybridization records of any avian family (see Gray, 1958, and Johnsgard, 1960a) both in captivity and under natural conditions. A surprising number of these hybrids have proved to be fertile, even when obtained between what appear to be well-marked genera. This remarkable capacity for hybridization indicates that isolating mechanisms must be operating effectively if species are to retain their integrity under natural conditions. Since genetic isolation …

Two New Gyrodactylus (Trematoda: Monogenea) From Cyprinid Fishes With Synopsis Of Those Found On North American Fishes, Glenn L. Hoffman, Robert E. Putz

United States Fish and Wildlife Service: Publications

Gyrodactylus atratuli from the blacknose dace (Rhinichthys atratulus) and the pearl dace (Semotilus margarita) is compared with known species of Gyrodactylus from North American fishes and described as a new species. Gyrodactylus margaritae from the pearl dace (Semotilus margarita) is compared with known species of Gyrodactylus from North American fishes and described as a new species. The average number of G. atratuli per blacknose dace in the natural habitat is 7.8 (1 to 32) and in the laboratory at the same water temperature after 55 days in captivity, 5.4 (0 to 11). G. atratuli …

Studies On Neogogatea Kentuckiensis (Cable, 1935) N. Comb. (Trematoda: Strigeoidea: Cyathocotylidae), Glenn L. Hoffman, Clarence E. Dunbar

United States Fish and Wildlife Service: Publications

The cercaria of N. kentuckiensis was found in Anaplocamus dilatatus (Nitrocris d.) and Mudalia carinata. The metacercaria was found in all fishes examined from Opequon River, West Virginia, except Cottus bairdi which was also refractory to experimental infection. Two species of Centrarchidae, four of Cyprinidae, three of Salmonidae, Etheostoma flabellare, Platypoecilus maculatus, and Trichogaster trichopterus were experimentally infected. The development of the metacercari and cyst and effect on the fish are described. The histopathology initially consists of hemorrhage and muscle necrosis about the metacercaria, followed by reorganization and formation of a loose connective tissue cyst. The controversial adult names …

Index Catalogue To Russian, Central And Eastern European, And Chinese Literature In Medical Entomology, Volume 1: Diptera, George Anastes

United States Naval Medical Research Unit 3: Publications

Over the past several years a large number of references from the USSR, Eastern Europe, and China have been collected dealing with arthropods of medical importance. These references were coded on keysort cards which made it possible to index as many as fifteen subject areas on one card. The usefulness of this indexing system was evident by the number of medical entomologists who used it in searching for references in their specialty. In response to requests from workers in the United States and other countries who did not have ready access to the index. it was decided to publish these …

How Teachers Of High School Biology May Introduce Heredity And Birds Through The Use Of Doves, Donald Hood Dickinson

Graduate Student Research Papers

It was the purpose of this study (1) to present a method of teaching principles of heredity at a level understandable to students of a high school biology class, (2) to present a list of resource materials for use in a heredity unit, and (3) to show how the use of live animals might intensify student interest in this subject as well as in other phases of bird life such as nest building, incubation of eggs, hatching of eggs, voice and communication, and effects of nutrition on chick development.

Factors Affecting The Waterfowl Hunter Utilization And The Waterfowl Kill At The Bear River Migratory Bird Refuge, 1960-61, Stephen V. Goddard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 1960 there were 1,955, 000 waterfowl hunters in the United States. These hunters spent $89,431, 000 (an average of $45.74 per individual) and 15,158, 000 hunter days in the field. The hunting population will increase 35 percent by 1975 (Anonymous, 1960).

The large increase in hunters will bring a proportional increase in the demand for places to hunt. Many states face the problem of providing enough public hunting for such an army of sportsmen. Studies by Kozlik (1958) in California, Gordinier (1957) and Friley (1959) in Michigan, and Bednarik (1957, 1961) in Ohio point out some of the problems …

Influence Of Age On Milk Production Of Holstein Cows In Utah, Marvin R. Green

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Production of dairy cows is influenced by many factors, among which are: genetics, nutrition, management, disease and age. Most of these factors can be modified to maintain a high level of production. Age, however, is beyond the influence of mankind; therefore, it is important to understand the effect of age on milk and butter-fat production.

End Matter, Vol. 2 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Comparative Study Of The Species Of The Genus Crotaphytus Holbrook (Iquanidae), Wilbur Gerald Robison Jr., Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The anterior musculature of C. wislizeni and C. collaris is described in detail and compared. Size and number relationships of the skull and its component bones, the sternum, the clavicle, the parts of the hyoid, the general body form, certain scales and teeth, and the eggs per clutch were determined for large samples of both species and then statistically compared. The general character of many structures is also compared and notes are made on C. reticulatus.

The differences encountered by this study, as well as the valid ones of those listed by Smith (1946:158–159) are not considered to be important …

Kentucky Warbler (Vol. 38, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Front Matter, Vol. 2 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Food Habits Of The Young Gizzard Shad, George Pahl, Jerry Maurer

Journal of the Minnesota Academy of Science

In his 1920 paper, L. H. Tiffany states that the gizzard shad (Dorosoma cepedianum) offers for the game fish one of the most direct routes possible from manufacturer to consumer. In view of this conclusion, the research reported in this paper was undertaken for the purpose of determining (a) what foods are ingested by gizzard shad, and (b) if there is any correlation between food ingested and that available in greatest supply in the natural habitat. The study was centered in an area of the Mississippi River in the vicinity of Winona, Minnesota. Some additional work was done about thirty-five …

The Apparent Genetic Relationship Between Campaniform And Trichoid Sensilla On Drosophila Wings, Vern Sisson, Charles L. Hamrum, Arthur W. Glass

Journal of the Minnesota Academy of Science

No abstract provided.

A Review Of The Characters Used In Identification Of Minnesota Eristalis, Latreille (Diptera, Syrphidae), Charles L. Hamrum, Wayne A. Becker

Journal of the Minnesota Academy of Science

No abstract provided.

Vermin Control Research In Western Australia 1952-1962, C D. Gooding

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

Ten years ago this month the Agriculture Protection Board of Western Australia began setting up a section within its Vermin Control Branch to tackle some of the scientific aspects of vertebrate pest control.

C. D. Gooding, B.Sc. (Agric), reviews the first 10 years of vermin control research work in Western Australia.

Day-Old Fowl Pox Vaccination, P Smetana

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

FOR many years the standard procedure for fowl pox prevention on West Australian poultry farms has been to vaccinate young stock at 12 weeks of age. Although most farmers have used this system successfully it has a number of weaknesses which can be overcome by day-old vaccination.

A new day-old fowl pox vaccine now on the market has many advantages over the normal vaccine, which is used at about 12 weeks old.

In tests at the Poultry Research Station it gave satisfactory results.

Grazing To Control Pasture Composition, R A. Bettenay

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

APART from grazing management, there are a number of means by which the farmer can influence pasture composition.

With the exception of grazing, all of these processes involve recurring costs, so it is important to exert the utmost possible control through the grazing animal.

Don't Neglect Those Dry Cows, Department Of Agriculture, Western Australia

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

WHEN a dairy cow becomes pregnant she is normally milking and has some months to go before being dried off.

It is usual at this stage for dairy farmers to provide the best feed available.

Stinkwort : A Troublesome Summer Weed, G R W Meadly

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

ONE of the commonest weeds in Western Australia is stinkwort, a vigorous plant which can be a nuisance in many parts of the State during late summer.

Nebraska Bird Review (January 1962) 30(1), Whole Issue.

Nebraska Bird Review

Table of Contents

Notes on Raising Blue Grouse ............................................................ 2

Species and Nesting Density of Birds in Grassland Habitats Near Burwell 9

General Notes ............................................................................................ 11

Meetings and Reports ............................................................................ 13

Excerpts From Letters ........................................................................ 14

Mrs. George Kirk .................................................................................... 16

Book Reviews ............................................................................................ 16

Bird Problems And Control In Western Australia, John L. Long

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

ALTHOUGH wild birds are mostly beneficial in Western Australia, there are certain species which are damaging to agriculture and the home gardener.

Facial Eczema In West Australian Sheep, M R. Gardiner, M. Nairn

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

SINCE 1894 when the disease was first described in New Zealand, the term "facial eczema" has been used to describe a specific photosensitization of sheep in that country.

Growth Study Of Young Gizzard Shad, George Pahl, Gordon Willfahrt

Journal of the Minnesota Academy of Science

This investigation was part of a general study aimed at shedding light upon the role of the gizzard shad (Dorosoma cepedianum) as a forage fish of certain game fish species. Recent changes in the populations of such game fish species as the walleye ( Stizastedion vitreum), northern pike ( Esox lucius) , and largemouth bass (Micropterus salmoides) in the upper Mississippi River suggest that the gizzard shad population might have an important bearing on the present situation. The purpose of this investigation was to study the growth rates of the gizzard shad in the Upper Mississippi River during their first …

Food For Thought In Rabbit Poisoning, J W. Leighton

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

SINCE the introduction of the "1080" Poisoning Unit Scheme in 1955 by the Agriculture Protection Board reasonable control of rabbit numbers has been obtained.

Besides this many important side effects have resulted.

Some Effects Of Ionizing Radiation On The Oral Suckers Of Rana Pipiens Embryos, Charles C. Reed

Journal of the Arkansas Academy of Science

No abstract provided.

Studies On Parorchis Acanthus (Trematoda: Digenea) As A Biological Control For The Southern Oyster Drill, Thais Haemastoma, Nelson R. Cooley

United States Fish and Wildlife Service: Publications

Events in the attack on the southern oyster drill, Thais haemastoma, by miracidia of the digenetic trematode, Parorchis acanthus, are described.

Infection rates in wild drill populations of various Gulf Coast localities from Florida to Texas were low, but intensity of infection in individual drills was high and caused castration. Infection rates in laboratory experiments were high, but intensities were low.

Pathology of natural infections in drills is described. The infection lasts at least two years, possibly even for life.

Natural infection rates of juvenile herring gulls (Larus argentatus) , ring-billed gulls (L. delawarensis), and …

Redescription Of The Adult Water Mite Hydrachna Miliaria And Description Of Its Life History, David Lou Kass

University of the Pacific Theses and Dissertations

During the summer of 1957 the writer became interested in water mites while collecting insects in an unnamed pond (see map in appendix) near Tomales, California. It was noted during that period that specimens of a giant water-bug, Lethocerus americanus Leidy (1847) had many larval mites attached to their ventral sides, and the lack of information concerning these animals and their life histories stimulated interest in investigating the problem detailed in this thesis. This work was begun in the summer of 1957 and has continued through the summer of 1959 and 1960.

Due to the lack of information and lack …