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Lot Feeding Of Beef Cattle. 5. Feed Lots And Animal Health, W J O Wilkie

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

BRINGING cattle from various sources together in a feed lot makes them more liable to disease than they would be in the open paddock.

Precautions, careful selection, prevention and vaccination can reduce the risk of disease and the possible need for treatment during the feed lot fattening period.

Starvation In Newborn Lambs, Stanley M. Dennis

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

INVESTIGATIONS over the past three years have shown that most lamb deaths in Western Australia occurred within the first three days of life.

Sixty per cent, of these losses were due to starvation/mismothering.

Vegetable Seed Treatments, G C. Macnish

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

Many common vegetable diseases can be carried over from one crop to the next by means of contaminated seed.

The use of such seed also results in contamination of the soil with the disease-causing organisms.

Prevention or control of seed-bome diseases can be achieved by the use of appropriate chemical or hot water treatments.

Parental Care Of The Eastern Kingbird And The Great Crested Flycatcher, Elmer L. Morehouse

Masters Theses

Introduction

The objective of this investigation was to obtain information regarding parental care in the Eastern Kingbird, Tyrannus tyrannus (L.), especially during post-hatching phases of the nesting cycle. In addition, some comparative observations were made on the Great Crested Flycatcher, Myiarchus crinitus (L.).

Consumer Acceptance Studies. Ii, Ground Beef Of Varying Fat Composition, Helen M. Law

LSU Agricultural Experiment Station Reports

No abstract provided.

Mechanisms Controlling The Formation And Persistence Of The Corpus Luteum, L. L. Anderson, R. M. Melampy

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

Mechanisms which control formation of corpora lutea during the estrous cycle, and particularly factors affecting their persistence and regression in various reproductive stages, have been of considerable interest to physiologists concerned with developing methods for control of the estrous cycle in domestic animals. Some recent reviews on control of ovarian function are those by Chester Jones and Ball (30), Anderson et al. (9) and Short (121).

The Role Of Light In The Regulation Of Cyclical Estrous Activity In Sheep, M. T. Clegg, H. H. Cole, W. F. Ganong

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

The widespread existence of biological clocks among animals is documented by a considerable body of evidence. Recently Farner (13) has reviewed this subject covering information on a large variety of animals. In this paper an attempt will be made to restrict most of the discussion to sheep. Experimental data from other species, however, will be cited when it can be usefully related to an understanding of the mechanisms controlling seasonal breeding activity in this species. As far as present knowledge is concerned, the factors regulating or at least monitoring annual physiologic cycles appear to depend greatly upon the influence of …

Comments And Conclusions Concerning Studies On Estrous Control In Domestic Animals, H. H. Cole

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

Let me allay at once any apprehension you may have that I am about to recapitulate all that has been said during the past two days. Redundancy at this time would merely accentuate your current soporific state. Thus I shall take advantage of the prerogative of seniority to modify the title of my talk to "Comments and conclusions concerning studies on estrous control in domestic animals."

The Lifespan Of Corpora Lutea Induced During The Luteal Phase Of The Estrous Cycle In Swine., B. N. Day

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

A more complete understanding of the mechanisms involved in the function and maintenance of the corpus luteum would be very useful in developing more effective methods of controlling the estrous cycle in farm animals. Various types and classes of experimental animals have been utilized in an effort to define the factors causing the persistence of the corpus luteum. In swine, several different experimental approaches have been made in an attempt to extend, experimentally, the functional lifespan of the corpus luteum in non-pregnant animals. Less frequently, attempts have been made to induce premature regression. In general, the procedures used to induce …

Evaluation Of Methods For Controlling The Estrous Cycle, William Hansel

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

Truly effective estrous cycle synchronization techniques are of great potential value to commercial producers of beef and dairy cattle, sheep, and swine. Many commercial beef cattlemen recognize the merits of using outstanding sires through artificial insemination (AI) to produce greater numbers of faster gaining cattle having the most desirable carcass characteristics. The relatively high heritability of feedlot gains makes this idea particularly attractive. Nevertheless, progress in attaining this goal has been rather slow, mainly because of the practical problems involved in breeding range cattle artificially and the low conception rates frequently obtained. Methods for cycle regulation compatible with the most …

A Comparative Study Of Gross Pelvic Anatomy And Renal Histology Of Two Species Of Sparrows, Shirley Ann Hoskins

University of the Pacific Theses and Dissertations

While in no way passing judgments on the quality of the investigations which have been published, there is one conclusion that must be reached and this is that there is room for further investigations. The studies which form the basis of this paper were undertaken to widen the general range of information on the avian kidney and its associated osseous cradle. In addition to the discussion, numerous photographs and diagrams are submitted to clarify and support the text. The present paper deals with with kidney and pelvic girdle of two species of sparrow: Zonotrichia leucophrys and Passer domesticus.

Native Vegetation Of Nebraska, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Nebraska is in the central part of the prairie plains. Yet grassland is only one kind of its varied vegetation. A westward extension of the great deciduous forest occurs along the Missouri River. It is bordered by shrubs, patches of which occur in favorable places to the western border. The foothills of the northwest have a forest of pine not unlike that of the Black Hills. On the level lands and among the wind-blown hills of sand there are hundreds of lakes, swamps, and marshes. The Missouri, Platte, and Niobrara Rivers extend across the state. They and their numerous tributaries …

Review Of Echinococcus Species In South Africa, Anna Johanna Maria Verster

Harold W. Manter Laboratory of Parasitology: Faculty Publications

1. The nominate subspecies of E. granulosus (Batsch, 1786) is redesignated from the type locality, Europe.

2. Five subspecies of E. granulosus are described from South African carnivores: E. g. granulosus, E. g. africanus, E. g. felidis, E. g. lycaontis and E. g. ortleppi.

3. E. g. granulosus has so far only been recovered from the Transvaal; E. g. ortleppi appears to be restricted to the Transvaal; E. g. africanus occurs in the Orange Free State and the Transvaal; E. g. lycaontis and E. g. felidis like their definitive hosts are restricted to the Transvaal.

4. …

Two New Species Of Plistophora (Microsporidea) From North American Fish With A Synopsis Of Microsporidea Of Freshwater And Euryhaline Fishes, Robert E. Putz, Glenn L. Hoffman, Clarence E. Dunbar

United States Fish and Wildlife Service: Publications

Two new species of Microsporidea, Plistophora salmonae from steelhead and rainbow trout (Salmo gairdneri) and Plistophora cepedianae from gizzard shad (Dorosoma cepedianum) are described. Schizonts to spores of P. cepedianae were found at one time within the same cyst, while only sporonts and spores of P. salmonae were found within the cyst. An illustrated synopsis of the known Microsporidea of freshwater and euryhaline fishes is given.

Eimeria Aurati N. Sp. (Protozoa:Eimeriidae) From Goldfish (Carassius Auratus) In North America, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

In March, 1962 this laboratory received some goldfish for disease diagnosis from Mr. Richard Rice, Mercersburg, Pennsylvania. Seven of 29 fish examined were infected with Eimeria. These fish had long, whitish, opaque fecal casts hanging from the anus. The casts were composed almost entirely of oocysts. When shed, they sank to the bottom and looked somewhat like "spent" tapeworms (Figs. 1, 2). The infected fish were very lethargic and their intestines were swollen with contained fluid. Although I believe that the Eimeria is pathogenic, a heavy infection of other parasites made this difficult to determine. These fish had apparently …

Studies On Myxosoma Cartilaginis N. Sp. (Protozoa: Myxosporidea) Of Centrarchid Fish And A Synopsis Of The Myxosoma Of North American Freshwater Fishes, Glenn L. Hoffman, Robert E. Putz, Clarence E. Dunbar

United States Fish and Wildlife Service: Publications

Myxosoma cartilaginis n. sp. is described from the cartilage of Lepomis macrochirus (bluegill), L. cyanellus (green sunfish) and Micropterus salmoides (largemouth black bass).  The development of the parasite is described from naturally infected fish which were held in spore-free water after infection.  The sporoplasm invades cartilage, and becomes a multinucleate trophozoite which forms pansporoblasts, each of which produces 2 to 4 spores.  The first spores appear in 7 weeks.

The histopathology in the above fish consists at first of little cellular reaction, but after 4 to 5 months epithelioid granulomas appear arround some of the spore masses.  Cartilage liquefaction is …

Contents For Proceedings: Conference On Estrous Cycle Control In Domestic Animals, July 9-10, 1964

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

This publication is a record of the papers presented at a conference on estrous cycle control in domestic animals, held July 10-14, 1964 at the University of Nebraska. Objectives of the conference were to review the status quo of research on this problem, to provide a forum for exchange of ideas and experiences, and to point up the direction of future research.

Some Side-Effects And After-Effects Of Experimental Endocrine Treatments Used To Modify The Natural Estrual Rhythm, L. E. Casida

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

The side-effects and after-effects to be considered in this discussion are those which grow out of experimental attempts to modify the natural estrual rhythm, and which have a bearing on the subsequent fertility ofthe animal. They are the effects that at one-and-the-same- time are the despair and the hope of workers on technological control of reproduction. They are the despair in that they detract from our immediate ability to control reproduction; they are the hope in that we may be able to learn more about the reproductive process in our attempts to analyze and understand them.

Roles Of Hypothalamus And Hypophysis In The Control Of The Estrous Cycle, A. V. Nalbandov

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

The interrelation between the hypothalamus and the anterior pituitary gland has been firmly established. It is not the intention of this report to review the literature on this extensive subject. Such reviews are available in "Advances in Neuroendocrinology" (Nalbandov, 2), and since the time of this publication many papers on this subject have appeared in current journals. For the purposes of the present discussion a few fundamental facts will be restated, but the major part of my presentation will deal with my own views of the research areas which should be of special interest to animal scientists concerned with phenomena …

Hormonal Control Of Reproductive Activity In The Ewe, J. F. Wagner

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

There are many advantages which result from synchronizing the estrous period in a ewe flock. In situations where the ewes are not hand bred to the ram, the synchronization of estrus makes the application of artificial insemination (AI) techniques more efficient. Detection of estrus usually is more reliable in a synchronized flock. Only 3 to 4 days are needed to detect estrus in 90 percent of a synchronized flock, whereas 16 to 18 days are normally required. This allows the AI technician to plan the number of breedings and have semen available. When hormones are given in the feed, an …

Effect Of Some Oral Hypoglycemic Agents On Hepatic Protein Synthesis, Lawrence Dechatelet

Master's Theses

No abstract provided.

Trinity River Watershed Analysis River/Floods/Weather, Susie Van Kirk

Susie Van Kirk Papers

Newspaper references and analyses concerning the Trinity River from 1861 through 1965.

Note: Exact publication date for report is unknown, definitely published post 1965.

Year For The Birds Justified By Events, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Birds Linked To Christmas By Literature And Lore, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Birds Still Flocking To Water Cold No Bother To Many Types, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Front Matter, Vol. 5 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 5 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

The Osteology And Myology Of The Head And Thorax Regions Of The Obesus Group Of The Genus Sauromalus Dumeril (Iguanidae), David F. Avery, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

International Symposium: Pain

Henry Ford Hospital Medical Journal

No abstract provided.

Electron Microscopy Of Whipple's Disease, John H. L. Watson, William S. Haubrich

Henry Ford Hospital Medical Journal

No abstract provided.