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Poultry Behaviour As It Affects Management, R H. Morris

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

UNDER natural conditions animals have considerable control over their movements and over their proximity to each other.

Today, however, there is a trend in animal husbandry towards greater intensificaton, and this is most evident in the poultry industry.

Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia

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

TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - LITTER

POULTRY RESEARCH STATION, WEMBLEY

SECOND PROGRESSIVE REPORT TO 26th FEBRUARY,1967

Average age of birds 215.5 days or 30 weeks and 6 days.

Cattle Stocking Rates In A Higher Rainfall Area, R Sprivulis

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

THE 1965 Pardelup cattle stocking rate trial was conducted with Hereford cross yearling steers on annual pasture of Mt. Barker sub. clover, Wirnmera ryegrass and various volunteer annual species.

This was topdressed with 186 lb. of superphosphate per acre in mid March.

On The Mechanism Of The Thiamine Catalyzed Reductive Dimerization Of Farnesyl Pyrophosphate To Squalene., Horatio D. Durst

LSU Historical Dissertations and Theses

The mechanism of the dimerization of farnesyl pyrophosphate to squalene was investigated in detail. Thiamine was found to catalyze this dimerization in yeast-soluble enzyme preparations. Removal of thiamine was found to cause the buildup of farnesyl pyrophosphate in the enzyme system. Derivatives of thiamine were tested to examine their effect on the dimerization reaction and were found to be inactive. It was found that extremely small amounts of thiamine enhance the formation of squalene while large concentrations inhibit the formation of squalene. Thiamine derivatives were synthesized to try to identify the intermediates in the enzyme system. These compounds are discussed …

New Phytotron Widens Scope For Research, Department Of Agriculture, Western Australia

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

A WIDE range of new experiments and greater speed and efficiency in many existing projects has been made possible by the recent completion of the Department of Agriculture phytotron at South Perth.

Translation Of Kheysin, Ye. M. 1967. Osnorye Itogi I Napravleniya Protozoologicheskikh Issledoraniy V Sssr. [Fundamental Review And Orientation Of Protozoological Research In The Ussr]. Zoologicheskii Zhurnal 46: 1,603-1,629, Ye. M. Kheysin, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 14, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States, June 18, 1968 (51 pages)

Translation of Kheysin, Ye. M. 1967. Osnorye itogi i napravleniya protozoologicheskikh issledoraniy v SSSR. [Fundamental review and orientation of protozoological research in the USSR]. Zoologicheskii Zhurnal 46: 1,603-1,629

Translation from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. Levine (notated NDL/cr)

A Bioassay For Detecting Compounds Which Stimulate Or Deter Feeding By The Sweetclover Weevil, W. R. Akeson, G. R. Manglitz, H. J. Gorz, Francis A. Haskins

Department of Agronomy and Horticulture: Faculty Publications

A bioassay employing sweetclover root disks impregnated with various plant extracts has been developed. The bioassay has been used to demonstrate the distribution of substances influencing feeding in fractionated water-methanol-chloroforrn extracts of Melilotus infesta Guss. and M. oficinalis L. Lam. leaves. Indications are that substances responsible for the resistance of M. infesta or the susceptibility of M. officinalis to feeding by adult sweetclover weevils, Sitona cylindricollis Fåhraeus, reside in the water-methanol fraction.

Phospholipids Of Thiobacillus Thiooxidans, J. M. Shively, A. A. Benson

School of Biological Sciences: Faculty Publications

Cells and spent growth media from sulfur- and thiosulfate-grown cultures of Thiobacillus thiooxidans were analyzed. The phosphatides were examined by thinlayer chromatography, and the products of their hydrolysis by hydrochloric acid and methanolic potassium hydroxide were separated by paper chromatography. The phospholipids in both cells and spent growth media were identified as phosphatidyl ethanolamine, phosphatidyl N-monomethylethanolamine, phosphatidyl glycerol, and diphosphatidyl glycerol. These comprised about 97% of the total lipid phosphorus. Lyso-phosphatidyl-N-monomethylethanolamine and lysophosphatidylglycerol accounted for the remaining 3%. The percentage of the total lipid phosphorus accounted for by each phospholipid depended on the age of the culture.

Sympatry Changes And Hybridization Incidence In Mallards And Black Ducks, Paul A. Johnsgard

Papers in Ornithology

Changes in general fall and winter distributions of Mallards and Black Ducks over the past century have resulted in markedly increased sympatric contact during pair formation between these two forms, and have been responsible for increased opportunities for hybridization. Bureau of Sport Fisheries and Wildlife records of hybrids from 34 states indicate a minimal current hybridization rate that is about 4% of the frequency expected on the basis of mating according to mathematical probabilities of chance contact. Thus, hybridization is most frequent where both forms are almost equally abundant, indicating that no reinforcement of differences reducing hybridization in the primary …

Ontogeny And Anatomy Of The Flower Of Limnocharis Flava (Butomaceae), Robert B. Kaul

School of Biological Sciences: Faculty Publications

The flowers of Limnocharis flava (L.) Buch. are borne in an indeterminate umbel and each consists of three sepals, three yellow petals, and about 18 carpels surrounded by numerous stamens and staminodia. The androecium is centrifugally developed, and the last-formed members are staminodial; it is supplied by branching vascular systems. Carpels arise almost simultaneously, and a prominent residual floral apex remains. The carpels are partially conduplicately closed and are also primitive in possessing laminar placentation and in lacking differentiation of a style. The gynoecium is essentially apocarpous, but there are slight fusions of adjacent carpels near their ventral margins where …

On The Ecology And Distribution Of Echinococcus Spp. (Cestoda: Taeniidae) And Characteristics Of Their Development In The Intermediate Host, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Echinococcus granulosus (Batsch, 1786) and E. multilocularis Leuckart, 1863 [syn. Alveococcus multilocularis (Leuckart, 1863) Abuladze, 1960] are distinguished by well defined biological and developmental characteristics. Obligatory predator-prey relationships of the hosts segregate the two species ecologically under natural conditions. The larval stage of E. granulosus develops slowly in long-lived ungulates, while that of E. multilocularis becomes infective within a few months in intermediate hosts (rodents) having a life expectancy of less than a year.

Existing parasite-host relationships of these cestodes had become established at least as early as late Pleistocene time, and two biologically distinct forms of E. granulosus can …

New Records Of The Pigmy Shrew Microsorex Hoyi (Baird) In Alaska, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The results of extensive trapping (ca. 7000 small mammals from the Alaskan mainland) indicate that the pigmy shrew, Microsorex hoyi (Baird), is a comparatively rare mammal in Alaska. From January, 1949, to the present, my co-workers and I have collected only seven specimens. These few animals considerably extend the known geographic range of M. hoyi in Alaska.

A Comparative Study Of The Leaf Epidermis Of Forty-Two Native California Ferns, Lorraine Martin Hebert

University of the Pacific Theses and Dissertations

Fern classification is in a state of flux, the largest area of disagreement being the family Polypodiaceae (Wagner, 1959). This polyphyletic group (Eame, 1936) has been divided by several prominet workers into many families. Ching (1940) recognized thirty-two, Holttum (1947) five, and Copeland (1947) nine families. Munz and Keck (1959) divided the old famliy Polypodiaceae, as represented by the ferns of California, into five families. The classification of Munz and Keck is the most recent treatment in this paper. Historically, classification of the leptosporangiate ferns has been based on the sorus, but the last half century has seen greater use …

Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor

Masters Theses

No abstract provided.

A Comparative Study Of The Ontogeny Of Macrosclereids And Osteosclereids In The Integument Of Cassia Fasciculata And Desmodium Canadense, Philip John Arnholt

Masters Theses

No abstract provided.

A Developmental Study Of The Endocarp Tissue In The Fruits Of Malus X Zumi And Crataegus Mollis, Two Representatives Of The Family Rosaceae, Subfamily Maliodeae, David Lee Haas

Masters Theses

No abstract provided.

Digenetic Trematodes And Cestodes From Fishes Of The San Joaquin Delta, Stephen Richard Edwards

University of the Pacific Theses and Dissertations

To date there has been only on major study concerned with parasites of freshwater fishes of California. E. C. Haderlie (1953) summarized investigations up to that year and conducted a general survey of the monogenetic and digenetic trematodes, cestodes, nematodes, acanthocephalans, copepods, and hirudinians of fishes of Northern California. From 2010 fishes representing 36 species of 11 families examined over a three-year period, he obtained a total of 59 species of helminth parasites, copepods, and hirudinians, which include 20 species of digenea and 16 species of cestodes. In addition to the taxonomic study, Haderlie attempted to correlate the relative occurrence …

Seasonal Thermal Acclimation In A Population Of Iguanid Lizards (Sceloporous O. Occidentalis, Baird And Girard, 1852), Charles Stetson Greene

University of the Pacific Theses and Dissertations

Within the few years following the publications of the first studies on reptilian thermoregulation (Mosauer, 1936; Attsatt, 1939; Cowles and Bogert, 1944; and Strelnidov, 1944) there has been an increasing number of investigations concerned with the mechanisms that underlie this phenomenon. Many studies have demonstrated that heliothermic lizards maintain a relatively constant body temperature during per- iods of diurnal and seasonal activity. Much of this regulation is dependent upon behavior. An extensive review of thermoregulation in both lizards and snakes has been compiled by St. Girons and St. Girona (1956).

Geographic Variation In Middle American Parrots Of The Amazona Ochrocephala Complex, Burt L. Monroe Jr., Thomas R. Howell

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Forestry Bulletin No. 12: Pine Seedling Survival And Growth Response To Soils Of The Texas Post-Oak Belt, J. J. Stransky, M. Victor Bilan

Forestry Bulletins No. 1-25, 1957-1972

An analysis of the methods and materials in relation to pine seedling survival, including a section on results and discussion.

A Comparative Osteological Study Of Two Species Of Colubridae: (Pituophis And Thamnophis), Robert E. Bullock, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The complete skeletal anatomy of Pituophis catenifer deserticola Stejneger is described in detail. The osteology of this species is compared with that of Thamnophis radix haydeni Kennicott in the following areas: atlas, axis, first thoracic, other thoracic lumbar, anterior caudal, middle caudal, and posterior caudal vertebrae, as well as the skull and hyoid apparatus.

Many structural similarities exist in these two species of colubrids. The more important structures or aspects in which similarities were observed are: (1) the natural division of the vertebral column into regions and subregions, (2) the gross morphology of the various types of vertebrae, (3) the …

Front Matter, Vol. 8 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 8 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

X-Ray Diffraction Powder Data For Steroids: Supplement Vii, Jonathan Parsons, John B. Holcomb, William T. Beher

Henry Ford Hospital Medical Journal

No abstract provided.

80th Annual Report: Nebraska Agricultural Experiment Station

Agricultural Research Division: News and Annual Reports

Contents:
Foreword
Administration and Staff
Research Projects
Experiment Station Publications
Publications of the Staff
Financial Report

Extraskeletal Osteogenic Sarcoma - Case Report, Klaus Hoffmann, Gerald Fine, J. L. Ponka, J. Keith Welborn

Henry Ford Hospital Medical Journal

No abstract provided.

A Consideration Of The Evolution Of The Nervous System With Illustrations Of Selected Mammalian Brains, Thomas J. Heldt

Henry Ford Hospital Medical Journal

No abstract provided.

Degrees And Variations In Immunoglobulin Responses In Infectious Hepatitis, Gerald A. Logrippo, Nansie S. Sharpless, Hajime Hayashi

Henry Ford Hospital Medical Journal

No abstract provided.

The Effect Of Neurosecretions From The Cerebral Ganglia On Blood Glucose Levels In Lumbricus Terrestris, Joan Vanderpol Craig

Masters Theses

Introduction

The presence of neurosecretory cells in the suprapharyngeal ganglia of Lumbricus terrestris has been well established (B. and E. Scharrer, 1937). Since these cells may well be the only source of hormones in this organism (B. Scharrer, 1959), the question arises as to their role in the animal's regulation of metabolism The particular aspect of this problem investigated here concerns the effect of these neurosecretory substances on the blood glucose levels in L. terrestris.

Preliminary studies by this investigator on glucose levels in earthworms revealed that blood samples of approximately 15 microliters could be obtained from each animal and …

End Matter, Vol. 8 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.