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Saving Labour In Feeding Calves, R A. Bettenay

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

PRESENT day values are such that no farmer can afford not to dispose of his calves to the best advantage.

With the lighter breeds this might still mean vealing all bull calves within a week of birth, but with heavier breeds it is now more economical to keep all calves until they are at least six to eight months old.

New Recommendations For Fruit Fly Control, D G. Shedley

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

THE MEDITERRANEAN FRUIT FLY (Ceratitis capitata Wied) is one of the most serious horticultural pests in Western Australia.

For more than 50 years growers of stone fruit and pears have not been able to relax their activities against this pest.

Despite all their action however, there have been many occasions when fruit losses have been very severe.

Sarcoptic Mange Of Pigs, H D. Seddon, F. C. Wilkinson

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

THIS parasitic disease appears to be much more common than is usually recognised; for, while severe cases with chronic skin lesions are readily seen, light infestations, especially on coloured pigs often go unnoticed.

When it is realised that even lightly infested pigs require twice as much feed to make one pound gain in live weight as do uninfested pigs, then early recognition and treatment of the disease becomes an obvious economical necessity.

The Magnetic Susceptibility Of Manganese Pyrophosphate As A Function Of Temperature, John J. Banewicz, Allan H. Luxem

Journal of the Graduate Research Center

The Magnetic Susceptibility of manganese pyrophosphate has been measured as a function of temperature from 300 to 1165 °K. The Curie and Weiss constants for the substance have been found to be 4.57 and -14 ° respectively. The Curie constant is larger than the value predicted from theoretical considerations.

Correlation Using A Bentonite Layer In The Cretaceous Austin Formation In Dallas County, Texas, Eugene Herrin, Herbert Robertson

Journal of the Graduate Research Center

Correlation is established on stratigraphic evidence in the Cretaceous lower Austin formation across Dallas County, Texas, using a particular bentonite bed approximately 8 inches thick. This bed is composed largely of the clay mineral, montmorillonite, along with subordinate amounts of illite and quartz. Montmorillonite occurs in adjacent calcareous beds, in place of illite, the more common clay mineral in the Austin formation. Therefore, an increase in montmorillonite content should indicate proximity to a bentonite bed. It is suggested that time-rock units may be established based on bentonite beds or upon intervals of high montmorillonite content in the limestone strata.

Relationships Of Some Families Of The Suborder Passeres (Songbirds) As Indicated By Comparisons Of Tissue Proteins, William B. Stallcup

Journal of the Graduate Research Center

Ornithologists agree that any classification of birds that attempts to reflect relationship and phylogeny presents many uncertainties. This is particularly true in regard to the Order Passeriformes, which includes more living species than all other orders combined, and of which but few fossil forms are known. Within this order the greatest taxonomic problem is posed by those species assigned to the Suborder Passeres (Oscines), the true songbirds. Opinions vary widely as to the relationships of the families in this suborder and, therefore, schemes of classification. This is because these birds form a morphologically homogeneous group, and because their slight anatomical …

The Natural History Of Necturus, Iv. Reproduction, Joseph P. Harris Jr.

Journal of the Graduate Research Center

Information on the life cycle of Necturus has accumulated slowly. Naturalists long were uncertain as to whether they had adult animals, since Mitchill's (1822) mistaken idea that they get to be two feet long was widely current. Lacepede (1807) believed that mudpuppies might be larval, and their adults unknown; Say (1818) that the mud puppy was the larva of the hellbender. Barton (1807) confused the mudpuppy and the hellbender. Gray (1857) was "... inclined for the present to consider the Proteus of the Lakes as a distinct kind of Batrachian, which is arrested in its development, and never reaches the …

Differential Chiasma Frequencies In Self-Pollinating And Cross-Pollinating Species Of The Genus Gilia, Howard S. Brown

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

A Physiological Comparison Of Isopods In The Transition From A Marine To A Terrestrial Habitat : With Notes On Their Morphology And Behavior, Gary John Brusca

University of the Pacific Theses and Dissertations

This study is of five species of isopods common to the Dillon Beach area, each of which represents a different level in the transition toward land life. Cirolana harfordi was used as a completely marine form. Idothea (Pentidotea) wosnesenskii represents a step toward land life as it inhabits an area uncovered by most low tides. Ligia occidentalis is found in the splash zone, receiving spray from the action of the surf. This illustrates another, higher, level in the transition. Alloniscus perconvexus was the fourth species studied. It is commonly found burrowed in the sand in the area of the berm, …

Louisiana Agriculture Magazine, Winter 1961, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Calibration Of Electric Moisture Meters For Jack And Red Pine, Black Spruce, Paper Birch, Black Ash, Eastern Hemlock, And Bigtooth Aspen, W.L. James

Aspen Bibliography

Direct current electrical resistance and radio frequency power absorption indexes were obtained at a temperature of 80°F, and at moisture content values from about 6 percent to bear the fiber saturation point for seven native American species: jack pine (Pinus banksiana), black spruce (Picea mariana), paper birch (Betula papyrifera), black ash (Fraxinus nigra), eastern hemlock (Tsuga canadensis), bigtooth aspen (Populus grandidentata), and red pine (Pinus resinosa).

Properties And Utilization Of Canadian Poplars, J.D. Irwin, J.A. Doyle

Aspen Bibliography

No abstract provided.

A Trial Of Several Silvicides On Red Maple, Aspen, And White Pine, Maurice W. Day

Aspen Bibliography

No abstract provided.

Ecology Of The Aspen Parkland Of Western Canada In Relation To Land Use, R.D. Bird

Aspen Bibliography

No abstract provided.

Swine Brucellosis: How You Can Eradicate It

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

Swine brucellosis is a bacterial disease that affects swine, other domestic animals, and humans. Severe exposure causes the disease in cattle, dogs, cats, and poultry. The disease can spread from one species of animal to another, and from animals to humans. However, it does not normally spread from one human to another, or from humans to animals. The disease costs the swine industry about $10 million a year. Losses due to human infection cannot be estimated. Although human brucellosis, or undulant fever, is difficult to diagnose-especially in mild cases-a total of 892 cases were documented in the United States in …

Trematodes Recovered From Passerine Birds Collected In Chickasaw County, Iowa, (With Notes On Other Avian Helminths), Charles J. Ellis

Dissertations and Theses @ UNI

The present study is a survey of the trematodes found in passerine birds collected in the Goodale Conservation Area of Chickasaw County, Iowa, from October 1959 through August 1960. Non-trematodic infections are reported also.

Progress ’61: 1961 Annual Report

Nebraska Game and Parks Commission: Publications

Table of Contents

Commissioners ... 2

Director's Message ... 3

Game ... 4

Fisheries ... 10

Parks ... 14

Federal Aid ... 18

Information and Tourism ... 20

Engineering and Operations ... 24

Land Management ... 26

Law Enforcement ... 28

Boating ... 30

Financial ... 31

Types Of Farming In Poland, Jerzy Kostrowicki

Journal of the Minnesota Academy of Science

Thus the Polish study presented here is but one more attempt to solve some methodological problems and to arrive at a typology of agriculture for a single country. In the Polish study, a type of farming is understood as being shaped under given natural conditions by particular social and economic processes: an ensemble of ways, orientations, and results of farming.

Staining Of Barley Kernels By Bacteria, Richard W. Lutey

Journal of the Minnesota Academy of Science

The demand for beer light in color has placed emphasis on the need to regulate malting as to produce, naturally and consistently, malts that are light in color (Bawden and Artis 1954), and malt having a clean pleasing aroma (Hopkins and Krause 1937). Even when bright barley, relatively free of field fungi, is malted, the finished product tends to be darker in color than the starting materials; in some cases to the extent that bleaching with sulfur dioxide gas is required (Hopkins and Krause 1937; Oesting et al. 1949). The cause of this discoloration is not known, but bacteria might …

Light Reflectivity As An Index Of Chlorophyll Content And Production Potential Of Various Kinds Of Vegetation, J. R. Bray, J. E. Sanger

Journal of the Minnesota Academy of Science

As a part of the study, "Energy relations of terrestrial ecosystems," being carried on at Cedar Creek Natural History Area, and generously supported by the Hill Family Foundation, the University of Minnesota, and the National Research Council of Canada, an attempt was made in the summer of 1960 to discover the relationship between the chlorophyll content of various plant communities and the visible albedo, that is the ratio of the amount of light reflected from the landscape to the total amount falling upon it. ·

Pollination Studies With Native Minnesota Pyrola And Moneses Species, Lawrence C.W. Jensen

Journal of the Minnesota Academy of Science

The closely related ericaceous ericaceous genera, Pyrola L. and Monese Salisb. ex. Gray, are common throughout the world in coniferous woods of north temperate areas. Characteristically they are small herbaceous plants with basal evergreen leaves and decorative inflorescences of green, white or pink flowers appearing in the early summer. In Minnesota there are five species of Pyrola-P. asarifolia Michx., P. elliptica Nutt., P. rotundifolia L., P. secunda L., and P. virens Schweigger. There is also the one species of Moneses, M. uniffora (L.) Gray. All these occur together in abundant quantities and bloom at approximately the same time. Consequently they …

Circadian Organization And Microbiology: Variance Spectra And A Periodogram On Behavior Of Escherichia Coli Growing In Fluid Culture, Franz Halberg, Robert L. Conner

Journal of the Minnesota Academy of Science

Over three decades ago Rogers and Greenbank (1) published observations on intermittent growth in a bacterial culture. These interesting data are analyzed further in this report by computational procedures ( 2-8) designed for detecting and evaluating the significance of nearly periodic phenomena. By such methods, circadian (about 24-hour) periodicity in a culture of E. coli is unmasked as a significant component of the recorded changes. These results extend the already broad scope of circadian temporal organization in microbiology.

The Physiological Effects Of Strychnine And Electric Stimuli On Cyclops, Ralph J. Fricke

Journal of the Minnesota Academy of Science

Cyclops, the intermediate hosts of parasites of higher animal~, particularly some tapeworms of fish, waterfowl, and some mammals is a comparatively simply crustacean. From the following it should become apparent that the Cyclops is, in fact, very complex, exhibiting physiological reactions similar to those produced in the mammal. This study will include certain observations of the physiological effects of strychnine and electric stimuli on Cyclops. The animal lacks a heart. Body fluid is circulated as a result of the rhythmic movements of its gut. For the experiments a clone of the species Eueyclops agilis was established. In a clone, all …

An Investigation Of Possible Commensalism In Red Squirrels, Yellow-Bellied Sapsuckers, And Humming-Birds At The Lake Itasca Biological Station, John C. Coulter

Journal of the Minnesota Academy of Science

This is an investigation of a relationship noted at the Lake Itasca Biological Station. It was noted that the Red Squirrel, Tamiasciurus hudsonicus, in some locations spent a considerable amount of time lapping sap from the rows of holes drilled in the White Birch, Betula papyrifera, by the Yellow-bellied Sapsuckers, Sphyropious varius varius (L.). After the invasion of the red squirrel the sapsuckers and the Ruby-throated Hummingbird, Archilochus colubris (L.) continued to utilize the same food supply as well as a considerably number of insects. The two general objectives of this endeavor were then to investigate some of the related …

The Use Of Different Embryos In Studying The Development Of Man, John C. Bartone

Journal of the Minnesota Academy of Science

The early development of man (embryology) is generally taught with the use of embryos of different animals. Human embryos are seldom used. This is true in the medical, graduate and undergraduate curricula. The primary reason for this utilitarian approach is simply because human embryos are generally not obtainable in numbers sufficient for the wide distribution necessary for all colleges and universities. Another reason is that fairly good substitutes are available to exhibit the early embryological stages of development of man. Some of these substitutes are embryos of the chick, frog and pig.

Minor Elements Can Be Overdone, L T. Jones

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

T H E term "minor elements" which is now commonly used and well understood by farmers and gardeners, refers to the five essential plant foods—copper, zinc, manganese, molybdenum and boron.

These five essential plant foods are needed by all plants in minute quantities and it is relatively easy to use them in excess of actual requirements or even in toxic amounts.

In practice this is not usually a problem with cereals and pastures. The important exception is when zinc alone is added to a cereal crop low in copper and the extra zinc accentuates the copper deficiency, and poorer yields …

A Grazing Management Trial For The Control Of Lupinosis In Sheep, H G. Neil, C. M. Ralph, A. W. Hogstrom

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

A "WASTING" disease of sheep grazing on lupin stands, usually accompanied by heavy mortality, has become a serious problem in coastal areas between Perth and Geraldton in the past ten years.

Tree Lucerne : A Fodder Crop With A Future, Laurence C. Snook

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

IN December, 1952, an article was published in this Journal drawing attention to the potential value of white flowered tree lucerne (Cytisus prolifer) as a source of nutritious green fodder during the dry summer months.

Figures were quoted to show that heavy yields could be obtained year after year with very little effort, and no outlay other than for fertiliser.

The advantages to be gained from the cultivation of this tree were made very apparent and many farmers set out to grow the shrub.

Honey Flora Calendar For May, R S. Coleman

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

Flora available in May

Improving Potato Seed, James P. Fallon

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

SOME of the oldest records of potato cultivation show that throughout the ages it has been generally accepted that periodically, a change of seed is essential, and the only means of maintaining satisfactory yields in crops.

Even today most potato growers are familiar with the term "run out" as applied to any particular line of potatoes which tends to progressively decrease in vigour and productivity when planted from year to year.