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Articles 14641 - 14670 of 14742
Full-Text Articles in Entire DC Network
Diseases Of Upland Game Birds, J. E. Shillinger, L. C. Morley
Diseases Of Upland Game Birds, J. E. Shillinger, L. C. Morley
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Until recently the diseases of upland game birds received comparatively little specific study, except in a few outbreaks in which serious losses were observed. Though highly destructive, many of these outbreaks were of such short duration that the investigations undertaken were chiefly to learn the cause of death and usually were discontinued when losses were no longer noticeable. It has become increasingly evident, however, that every year great numbers of game birds die of disease, the decreases in their numbers frequently occurring in sections closed to hunting, even though food, cover, and other environmental conditions appear ideal. The disease problems …
The Gizzard Worm And Its Transmission To Chickens In Hawaii, Joseph E. Alicata
The Gizzard Worm And Its Transmission To Chickens In Hawaii, Joseph E. Alicata
Harold W. Manter Laboratory of Parasitology: Library Materials
Gizzard-worms of poultry, Cheiloapirura hamulosa, are nematodes occurring in the gizzards of chickens and turkeys.
Summary and Conclusions
Previous to this report the carriers for the gizzard-worm in Hawaii were unknown. Recent investigations by the writer have shown that the flour beetle, Tenebroides nana, and the sand hopper, Orchestia platensis, collected from poultry farms in the Territory of Hawaii have been found naturally infested with the infective larvae of the poultry gizzard-worm, Cheilospirura hamulosa. Out of 8 laboratory-raised chickens to which there were fed about 2,300 grasshoppers that had been collected in an endemic gizzard-worm area, …
Translation Of Nakamura, Yoshitaka. 1937. Development Of Trichostrongylus Instabilis, Section Ii: The Larva. Keio Igaku, Tokyo 17(4): 797-814, Yoshitaka Nakamura, Guang-Tsan Wang
Translation Of Nakamura, Yoshitaka. 1937. Development Of Trichostrongylus Instabilis, Section Ii: The Larva. Keio Igaku, Tokyo 17(4): 797-814, Yoshitaka Nakamura, Guang-Tsan Wang
Harold W. Manter Laboratory of Parasitology: Library Materials
Translation number 11, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States, March 23, 1964 (21 pages)
Translation of Nakamura, Yoshitaka. 1937. Development of Trichostrongylus instabilis, section II: The larva. Keio Igaku, Tokyo 17(4): 797-814
Translation from Japanese to English by Guang-Tsan Wang, University of Illinois, Urbana, Illinois, United States (notated sj)
The presently accepted name for this species is Trichostrongylus colubriformis. Translator.
A New Genus Of Distomes (Trematoda) With Lymphatic Vessels, H. W. Manter
A New Genus Of Distomes (Trematoda) With Lymphatic Vessels, H. W. Manter
Harold W. Manter Laboratory of Parasitology: Faculty Publications
The trematodes described in this paper are but two of over 100 species collected from marine fishes in 1934, during the third G. Allan Hancock Expedition to the Galapagos Islands. The author's presence on this expedition was sponsored in part by the Carnegie Institution of Washington. A brief preliminary report on the trematodes collected has been made (Manter, 1934) and a more complete report on the digenetic forms is in preparation. An early description of these two forms is felt justified in view of their significance in connection with the phylogeny of the Distomata. The author has already indicated (Manter, …
Some Monogenetic Trematodes From The Galapagos Islands And The Neighboring Pacific, Frank Grose Meserve
Some Monogenetic Trematodes From The Galapagos Islands And The Neighboring Pacific, Frank Grose Meserve
School of Biological Sciences: Dissertations, Theses, and Student Research
Introduction
Trematodes are parasitic, unsegmented, flattened (rarely cylindrical) worms. They have ventral, anterior, posterior or median attachment organs. The sense organs are poorly developed. The mouth is terminal or ventral and subterminal. The intestine is usually forked with or without lateral branches. The animals, with few exceptions, are hermaphroditic. The ovary is usually single. They have one, two, or more testes. The development is direct with only one host in the ectoparasitic Monogenea and indirect in the Digenea which have two or more hosts. The digenetic trematodes usually parasitize vertebrates which serve as their primary hosts and invertebrates (Mollusca) which …
Echinococcus From Dogs In Pretoria And Vicinity, R. J. Ortlepp
Echinococcus From Dogs In Pretoria And Vicinity, R. J. Ortlepp
Harold W. Manter Laboratory of Parasitology: Library Materials
Discusses the discovery of Echinococcus granulosus (Batsch, 1786), Rud., 1805; Echinococcus cameroni n. sp. syn. E. granulosus of Cameron, 1926, from Vulpes vulpes; not E. granulosus (Batsch) Rud. 1805; and Echinococcus lycaontis sp. n. from stray dogs in Pretori, South Africa.
Some Digenetic Trematodes From Deep-Water Fish Of Tortugas, Florida, Harold W. Manter
Some Digenetic Trematodes From Deep-Water Fish Of Tortugas, Florida, Harold W. Manter
Harold W. Manter Laboratory of Parasitology: Library Materials
Introduction (first two paragraphs)
The parasitic fauna of ocean depths is practically unknown. Although an extensive fish population occurs at all depths, very little study has yet been made on the helminths of these fish. During the summers of 1930, 1931, and 1932 excellent opportunity was offered for the collection of parasites from fish trawled from depths varying from 40 to 582 fathoms at Tortugas, Florida. A considerable number of systematic hauls by the staff and crew of the Tortugas Biological Laboratory of the Carnegie Institution of Washington yielded an abundance and considerable variety of fish, some of rare forms, …
Bulletin No. 246 - Food Habits Of Rural School Children In Relation To Their Physical Well-Being, Almeda Perry Brown
Bulletin No. 246 - Food Habits Of Rural School Children In Relation To Their Physical Well-Being, Almeda Perry Brown
UAES Bulletins
A study of school children's diet and of their physical status was made in six rural Utah communities, similar in size, and in social, economic, and physical characteristics.
Translation By Joseph Szanto Of Kotla'n, Sa'ndor And Pospech, La'szlo'. 1934. A Ha'zinyul Coccidiosisa'nak Ismerete'hez. Egyu'j Eimeria-Faj (Eimeria Piriformis Sp. N.) Ha'zinyulbo'l [= Coccidiosis Of Domestic Rabbit: A New Eimeria Species (Eimeria Piriformis Sp. N.)]. A'Llatorvosi Lapek 57(15): 215-217, Sandor Kotlan, Laszlo Pospech, Joseph Szanto
Translation By Joseph Szanto Of Kotla'n, Sa'ndor And Pospech, La'szlo'. 1934. A Ha'zinyul Coccidiosisa'nak Ismerete'hez. Egyu'j Eimeria-Faj (Eimeria Piriformis Sp. N.) Ha'zinyulbo'l [= Coccidiosis Of Domestic Rabbit: A New Eimeria Species (Eimeria Piriformis Sp. N.)]. A'Llatorvosi Lapek 57(15): 215-217, Sandor Kotlan, Laszlo Pospech, Joseph Szanto
Harold W. Manter Laboratory of Parasitology: Library Materials
Translation number 5, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States, January 19, 1961 (notated JS:d)
Translation by Joseph Szanto of Kotla'n, Sa'ndor and Pospech, La'szlo'. 1934. A ha'zinyul coccidiosisa'nak ismerete'hez. Egyu'j Eimeria-faj (Eimeria piriformis sp. n.) ha'zinyulbo'l [= Coccidiosis of domestic rabbit: A new Eimeria species (Eimeria piriformis sp. n.)]. A'llatorvosi Lapek 57(15): 215-217
Translation by Joseph Szanto of Kotlan, Sandor and Pospech, Laszlo. 1934. A hazinyul coccidiosisanak ismeretehez. Egyuj Eimeria-faj (Eimeria piriformis sp. n.) hazinyulbol [= Coccidiosis of domestic rabbit: A new Eimeria species (Eimeria piriformis sp. n.)]. Allatorvosi Lapek …
White Scours Of Calves, L. Van Es
White Scours Of Calves, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
It becomes possible to understand some of the reasons for the occurrence of disorders among the newborn of animals kept under the usual conditions imposed by domestication. Among these, the subject of this circular, White Scours in Calves, occupies a prominent place.
Worm Parasites Of The Brown Rat (Mus Norvegicus) In The Philippine Islands, With Special Reference To Those Forms That May Be Transmitted To Human Beings, Marcos A. Tubangui
Worm Parasites Of The Brown Rat (Mus Norvegicus) In The Philippine Islands, With Special Reference To Those Forms That May Be Transmitted To Human Beings, Marcos A. Tubangui
Harold W. Manter Laboratory of Parasitology: Library Materials
Summary
Besides the role that they play as carriers and reservoirs of bubonic plague and other bacterial as well as spirochretal infections, rats often harbor parasitic worms, some of which are also a menace to human health. In view of this and because of the fact that the helminthic fauna of rats has never been studied extensively in the Philippine Islands, it seemed desirable to undertake a systematic examination of these animals for the purpose of finding out if they are infested with parasites that are transmissible to man.
The examination of nine hundred fifty rats (Mus norvegicus) …
A General Discussion Of Trichinella Spiralis (Owen), An Investigation Of Infection Of The Brown Rat, And A Life History Study Of The Parasite In The White Rat, Carl A. Johnson
Electronic Theses and Dissertations
The purpose of this treatise is threefold: first, to present a general discussion of Trichinella spiralis,; second, to present the results of an investigation of infection with trichinae of 100 brown rats; and third, to present the results of infecting white rats under laboratory conditions.
The Incidence Of Avian Tuberculosis In Mammals Other Than Swine, L. Van Es, H. M. Martin
The Incidence Of Avian Tuberculosis In Mammals Other Than Swine, L. Van Es, H. M. Martin
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The recognition of a very widespread and intense distribution of avian tuberculosis on the farms of a wide area of the United States, as well as the involvement of a mammalian species also, brought to the foreground the question whether or not the great prevalence of poultry tuberculosis could be of importance also from a public health point of view. This phase of the problem not only pertains to the people on the farms but likewise is of fundamental importance to the consumers of poultry produce. European authors had already identified the avian tubercle bacillus in human lesions while in …
Economic Aspects Of Contagious Abortion In A Dairy Herd, Department Of Animal Husbandry
Economic Aspects Of Contagious Abortion In A Dairy Herd, Department Of Animal Husbandry
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The object of this study is to present the measurable losses due to abortion in a dairy herd of high-producing ability over a period of approximately one-third of a century. The records available provide a rather complete history of what has taken place.
Swine Sanitation, L. Van Es
Swine Sanitation, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
From the very beginning of Nebraska's agricultural development its farmers have recognized that the production of swine must of necessity accompany the growing of corn. The latter, one of the state's most important staples, cannot be marketed in a more economical manner than after having been transformed into pork, bacon, and lard. As a result the state has for many years maintained a rather dense swine population mainly divided into large herds kept on relatively small areas of land. This density of population, as well as certain practices in management and selective breeding, has brought about conditions favorable for the …
Hydracarina From Glacier National Park, Ruth Marshall
Hydracarina From Glacier National Park, Ruth Marshall
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Material for this study consisted of collections of water mites made by Dr. R. M. Muttkowski in Lake McDonald, Glacier National Park, Montana, during the months of July and August, 1925. The author wishes here to express her thanks to Dr. Muttkowski for the opportunity to examine this material and thus to add a little to our scanty knowledge of the Hydracarina of the Rocky Mountain region.
Nearly five hundred individuals were secured; these represented seven genera and ten species, one of which is new and one undetermined. About three fourths of the number were Pionas and Limnesias, each genus …
The Endocrine Glands, Mary Gordon Rule
The Endocrine Glands, Mary Gordon Rule
Biology Honors Papers
This 23 page thesis examines the influence of endocrine glands, including the thyroid, thymus, pituitary and pineal on the physical and psychical behavior of organisms.
Bovine Tuberculosis, L. Van Es
Bovine Tuberculosis, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
The development of the present-day knowledge of the tuberculoses of animals is so intimately associated with that pertaining to the human form of the disease that the latter needs to be included in the historical considerations, without which it would be difficult to view any phase of the subject in a comprehensive manner.
Translation By Joseph Szanto Of Kotlan, Sandor, Mocsy, Janos, And Vajda, Todor. 1929. A Juhok Coccidiosisa'nak Okozo'i Egy U'J Faj Kapcsa'n = [Coccidiosis Of Sheep In Connection With A New Species.] Allatorvosi Lapok 52(23): 304-306, Sandor Kotlan, Janos Mocsy, Todor Vajda, Joseph Szanto
Translation By Joseph Szanto Of Kotlan, Sandor, Mocsy, Janos, And Vajda, Todor. 1929. A Juhok Coccidiosisa'nak Okozo'i Egy U'J Faj Kapcsa'n = [Coccidiosis Of Sheep In Connection With A New Species.] Allatorvosi Lapok 52(23): 304-306, Sandor Kotlan, Janos Mocsy, Todor Vajda, Joseph Szanto
Harold W. Manter Laboratory of Parasitology: Library Materials
Translation number 4, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States
Translation by Joseph Szanto of Kotlan, Sandor, Mocsy, Janos, and Vajda, Todor. 1929. A juhok coccidiosisa'nak okozo'i egy u'j faj kapcsa'n = [Coccidiosis of sheep in connection with a new species.] Allatorvosi Lapok 52(23): 304-306
Translation from Hungarian to English by Joseph Szanto of University of Illinois, Urbana, Illinois, United States, July 7, 1960 (4 pages)
The Structure And Development Of Corallobothrium With Descriptions Of Two New Fish Tapeworms (With Five Plates), Hiram Eli Essex
The Structure And Development Of Corallobothrium With Descriptions Of Two New Fish Tapeworms (With Five Plates), Hiram Eli Essex
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Introduction
Representatives of the genus Corallobothrium from American fish have never been described. Marshall and Gilbert (1905) report two members of this genus taken from Ameiurus melas (black bullhead) caught in the lakes at Madison, Wisconsin. La Rue (1914) refers to an undescribed species of Corallobothrium encysted in the livers of A. melas and A. nebulosus (common bullhead) from the Illinois River. Ward (1918) noted the presence of a species of Corallobothrium in lctalurus punctatus (channel-cat) at Milford, Nebraska. Aside from these incidental references, the American literature contains no information on this interesting group of fish tapeworms.
The acquaintance of …
A Revision Of The Nematodes Of The Leidy Collection, Arthur C. Walton
A Revision Of The Nematodes Of The Leidy Collection, Arthur C. Walton
Harold W. Manter Laboratory of Parasitology: Library Materials
Through the courtesy of Dr. Henry Baldwin Ward of the University of Illinois, and of Dr. J. Percy Moore of the University of Pennsylvania, the extensive nematode collection assembled by the late Joseph Leidy, and now housed in the museum of the University of Pennsylvania, has been made available for critical study and the present report is the first of a series covering this material. The writer wishes to express his hearty appreciation of the kindness of these two men, and also of that of Dr. Joseph Leidy, Jr., in making this opportunity possible. To make the study more complete …
Studies On The Ascaris Lumbricoides, H. M. Martin
Studies On The Ascaris Lumbricoides, H. M. Martin
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The Ascaris lumbricoides, in one phase or another, has attracted the attention of parasitologists for many years, and during the last decade this parasite has been studied by a large number of investigators. The recent observations have been, to a great extent, directed along one line, the study of its life history. These investigators have established two important points: (a) That the life history of Ascaris is more complex than was supposed, as it has been found that a vasculo-pulmonary circuit of the larvae is necessary before they settle down in the intestine, where they develop to the adult …
The Tapeworms Of The Rhinoceroses, A Study Based On Material From The Belgian Congo, Horace W. Stunkard
The Tapeworms Of The Rhinoceroses, A Study Based On Material From The Belgian Congo, Horace W. Stunkard
Harold W. Manter Laboratory of Parasitology: Library Materials
During the course of my study on the parasitic worms collected by the Lang-Chapin expedition of the American Museum to the Belgian Congo, I have had the good fortune to examine abundant material of Plagiotaenia gigantea (Peters). This interesting species, the first reported from the rhinoceros, has been confused with other cestodes from rhinoceros hosts, has been assigned to no less than three different genera in addition to the genus Taenia, to which it was originally referred, and has been the source of much discussion and difference of opinion during the past seventy years. A review of the literature …
Some Marine Fish Trematodes Of Maine, Harold W. Manter
Some Marine Fish Trematodes Of Maine, Harold W. Manter
Harold W. Manter Laboratory of Parasitology: Library Materials
During the summer of 1924 a study of marine fish parasites was made at the Mount Desert Island (Maine, USA) Biological Laboratory. The present paper represents a preliminary report on the trematode group. Three new species of trematodes are described. Only brief consideration is here given to species already known. A later paper will deal more completely with these and related forms.
Includes brief descriptions of Podocotyle atomon (Rud. 1802), Podocotyle olssoni Odhner 1905, Stephanochasmus baccatus Nicoll 1907, Lepidapedon rachion (Cobb.) 1858, Lepidapedon elongatum (Lebour 1908), Homalometron pallidum Staff. 1904, Steganoderma formosum Staff. 1904, Otodistomum cestoides (van Ben. 1870), Hemiurus …
The Hemotoxins Of Intestinal Parasites: A Critical Summary With Notes Of Some Cases, Joseph Mellick Leidy Ii
The Hemotoxins Of Intestinal Parasites: A Critical Summary With Notes Of Some Cases, Joseph Mellick Leidy Ii
Harold W. Manter Laboratory of Parasitology: Library Materials
The mechanical and reflex disturbances produced by animal parasites in the intestinal canal and other organs of the body have long been recognized by pathologists and clinicians. The researches of economic parasitologists and the occasional reports by clinical observers indicate the presence of other factors deserving of further investigation. That certain parasitic worms secrete substances that effect the blood of their hosts deleteriously has been shown conclusively by the researches of Tallqvist, Schwartz, Schaumann and others. The broad tapeworm of man which is known to produce severe anaemia contains a hemolytic agent according to the experiments and researches of Schaumann …
Bovine Tuberculosis, L. Van Es
Bovine Tuberculosis, L. Van Es
Nebraska Agricultural Experiment Station: Historical Circulars
Tuberculosis affects all species of domestic mammals although with different degrees of intensity and frequency. Cattle and swine furnish the greatest number of cases.
Trematodes From The Rat, Horace Wesley Stunkard, Chilson B. Haviland
Trematodes From The Rat, Horace Wesley Stunkard, Chilson B. Haviland
Harold W. Manter Laboratory of Parasitology: Library Materials
Occasional examinations of rats for animal parasites have been carried on for over a hundred years. Later, knowledge of the importance of rats as reservoirs of infection and as agents in the transfer of parasitic diseases has led to the regular and careful examination of large numbers in various parts of the world. Among the more recent publications dealing with the parasites of rats may be mentioned Shipley (1908), Moll (1917), Chandler (1921), Balfour (1922), Baylis (1922), Stevenson (1922), Hegner (1923), and Lavier (1924). Notwithstanding the many investigations, only a single trematode parasite has previously been discovered and concerning it …
A Founder Of American Parasitology, Joseph Leidy, Henry Baldwin Ward
A Founder Of American Parasitology, Joseph Leidy, Henry Baldwin Ward
Harold W. Manter Laboratory of Parasitology: Library Materials
A biographical overview of American parasitologist Joseph Leidy and his work. bron September 9, 1823, Philadelphia, Pennsylvania, USA - died 1891.
Conclusion
A detailed study of his writing justifies the statement that no one has yet adequately presented or fully elucidated Leidy's contributions to helminthology and his writing will furnish rich lead to many future workers in this field. How monumental the task of preparing a record of the full life work of this extraordinary man who in the same breath as it were, in a single letter records discoveries of far reaching import on bacteria, amoebae, worms, and fossil …
Farm Sanitation, G. S. Weaver
Farm Sanitation, G. S. Weaver
SDSU Extension Circulars
Sanitation means to keep things clean, to be hygienic. Farm sanitation helps to preserve the health of domestic animals and, indirectly, the health of the people that live on the farm. Cleanliness, sunlight, fresh air, and disinfectants are the important factors in sanitation.
Bulletin 106 - The Red-Legged Velvet Earth Mite, L. J. Newman
Bulletin 106 - The Red-Legged Velvet Earth Mite, L. J. Newman
Bulletins 1 - 2999
This pest is sometimes called in error the "Red Spider" or the 'Earth Flea."
It is neither a spider nor a flea, being a species of mite.
It belongs to the family of mites known as the Eupodidae and to the Genus Notophallus. Many of the members of this family are predaceous, that is, they live upon other insects or animals, but the species we are dealing with appears to be wholly a plant feeder. A popular idea is that the mite lives and breeds in the earth. The rapidity with which newly planted vegetables become infested gives good excuse …