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Articles 2191 - 2220 of 2461

Full-Text Articles in Parasitology

A Survey Of The Helminth Parasites And Coccidia Of Cattle And Sheep In Utah Valley, Joseph Carl Fox May 1970

A Survey Of The Helminth Parasites And Coccidia Of Cattle And Sheep In Utah Valley, Joseph Carl Fox

Theses and Dissertations

A survey of gastro-intestinal parasites in cattle and sheep in Utah Valley was conducted. Cattle in the valley were not seriously parasitized by helminths, whereas sheep usually had heavy helminth infections. Ten genera of helminths and 8 species of coccidia were identified in cattle in the valley, and 14 genera of helminths and 8 species of coccidia were identified in sheep. In conjunction with the survey, meteorologic studies were conducted May through September, 1909, to ascertain the effects which irrigation had upon micro-environments on grass pastures in relation to the development of free-Iiving stages of gastro-intestinal nematodes of ruminants. The …


Spinitectus Beaveri Sp. N. (Nematoda: Spiruroidea) From The Bonefish, Albula Vulpes (Linnaeus), In Florida, Robin M. Overstreet Feb 1970

Spinitectus Beaveri Sp. N. (Nematoda: Spiruroidea) From The Bonefish, Albula Vulpes (Linnaeus), In Florida, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Spinitectus beaveri sp. n. from the stomach of Albula vulpes is described. In the male, the maximum length is 6 mm, the esophagus is approximately 30% of the body length, the spicule ratio is 1:2.5 to 3.0, and there are 4 pre- and 5 postcloacal papillae. In the female, the maximum length is 7 mm, the esophagus is approximately 27% of the body length, and approximately 38% of the body length is posterior to the vulva. The species most closely resembles S. carolini Holl, 1928, from which it differs by having 10 to 16 rather than 25 to 35 cuticular …


Dogs, Tapeworms, Cysts : And Soiled Sheep, Department Of Agriculture, Western Australia Jan 1970

Dogs, Tapeworms, Cysts : And Soiled Sheep, Department Of Agriculture, Western Australia

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

To protect our export markets it is necessary to meet the required standards and to eliminate as far as possible any sources of cysts, contamination, blemished carcasses or other defects in meat.

Some of these things are beyond the control of the individual farmer, but there are some things he can do to help ensure that the sheep he sends to abattoirs are free of defects which threaten export markets.


Feeding And Care Of The Farm Dog, J B. White Jan 1970

Feeding And Care Of The Farm Dog, J B. White

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

Most farmers acknowledge the value of a well trained dog when handling sheep, but few appreciate that without correct care and feeding such a dog may reduce their profits and constitute a hazard to the health of themselves and their families.


Cysticercus Ovis : Sheep Measles, G C De Chaneet Jan 1970

Cysticercus Ovis : Sheep Measles, G C De Chaneet

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

CYSTICERCUS OVIS, commonly known as sheep "measles", has come into prominence in the last few years because of the rejection of affected carcasses by overseas markets. Recently it was one of the causes of a complete ban on imports of Australian mutton by-the.iJnited States and Canada.


Hydatid Disease In Western Australia, G C De Chaneet Jan 1970

Hydatid Disease In Western Australia, G C De Chaneet

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

BECAUSE hydatid disease is a disease of humans as well as animals, every dog owner should be aware of the conditions that perpetuate hydatids and the methods of control.

The incidence of hydatids in Western Australia in the past has not been high.

However, the increase in sheep numbers over recent years, together with the intensification of farming methods, may lead to a rise in incidence unless stock owners, particularly sheep farmers, take steps to control the disease.


The Incidence And Intensity Of Haematozoa In The Common Crow (Corvus Brachyrhynchos) Of Western Washington, Ronald E. Scarvie Jan 1970

The Incidence And Intensity Of Haematozoa In The Common Crow (Corvus Brachyrhynchos) Of Western Washington, Ronald E. Scarvie

All Master's Theses

The purpose of this study was to determine the incidence and intensity of blood parasites in the common crow (Corvus brachyrhynchos). The following observations on the protozoan genera Haemoproteus, Leucocytozoon, Plasmodium and Trypanosoma with observations on the nematode group microfilaria, are based entirely on materials collected at Auburn, Washington during the spring of 1970.

Despite the numerous studies on prevalence of blood parasites in various birds, there have been few attempts to study the relative incidence and intensity of haematozoa in blood and tissue smears taken from the common crow. So far as the author has been able to ascertain, …


The Effect Of Gamma Irradiation On Growth Of Seven Strains Of Trypanosoma Avium, Roy Wesley Leid Jr. Jan 1970

The Effect Of Gamma Irradiation On Growth Of Seven Strains Of Trypanosoma Avium, Roy Wesley Leid Jr.

All Master's Theses

The prime motivating factor in the present study was the desire to show significant differences in radio-sensitivities within six strains of Trypanosoma avium. A seventh strain was later added for the last two irradiation treatments. Gross morphology and differences in growth curves associated with varying temperatures suggested that the strains being cultured were not the same. With these differences in mind, the strains were subjected to different dosage levels of gamma irradiation.


A New Genus Of Trematode (Digenea: Gorgoderidae) From The Ureter Of Tuna Fish (Thunnus Thynnus Maccoyii) In Australia, Harold W. Manter Jan 1970

A New Genus Of Trematode (Digenea: Gorgoderidae) From The Ureter Of Tuna Fish (Thunnus Thynnus Maccoyii) In Australia, Harold W. Manter

Harold W. Manter Laboratory of Parasitology: Library Materials

A large, digenetic trematode is described from the ureter of the tuna Thunnus thynnus moccoyii from southern Australian waters. It represents a new genus and species, Cetiotrema crassum (subfamily Gorgoderinae) distinguished by the size and shape of the body, the caeca being distant from the sides of the body, the uterus being intercaecal, the vitellaria arising as three claviform lobes on each side and the seminal vesicle at least partly anterior to the genital pore.

The genus is close to Phyllodistomum Braun; P. carangi Manter, 1947, is considered to belong to Cetiotrema; P. lancea Mamaev, 1968 is very similar …


Translation Of Galuzo, I. G., And A. H. Krivkova. 1970. Novye Kanaly Tsirkulyatsii Toksoplazm V Prirode [= New Paths Of Circulation Of Toxoplasma In Nature]. Izvest. Akademie Nauk Kazakh. Ssr, Seriya Biol. 1970(5): 38-44, I. G. Galuzo, A. M. Krivkova, Frederick K. Plous Jr. Jan 1970

Translation Of Galuzo, I. G., And A. H. Krivkova. 1970. Novye Kanaly Tsirkulyatsii Toksoplazm V Prirode [= New Paths Of Circulation Of Toxoplasma In Nature]. Izvest. Akademie Nauk Kazakh. Ssr, Seriya Biol. 1970(5): 38-44, I. G. Galuzo, A. M. Krivkova, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 24, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (7 pages)

Translation of Galuzo, I. G., and A. H. Krivkova. 1970. Novye kanaly tsirkulyatsii toksoplazm v prirode [= New paths of circulation of Toxoplasma in nature]. Izvest. Akademie Nauk Kazakh. SSR, Seriya Biol. 1970(5): 38-44

Translated from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. Levine


Translation Of Galuzo, I. G., N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krivkova, L. S. Bogdanyuk, And M. E. Bokova. 1970. Serologicheskaya Kharakteristika Shtammov Toksoplazm, Vydelennykh Ot Razlichnykh Vidov Zhivotnykh [= Serologic Characterization Of Strains Of Toxoplasma Isolated From Various Species Of Animals]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Disease], Alma-Ata, Kazakhstan, Ussr 3: 37-48, I. G. Galuzo, N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krikova, L. S. Bogdanyuk, M. E. Bokova, Frederick K. Plous Jr. Jan 1970

Translation Of Galuzo, I. G., N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krivkova, L. S. Bogdanyuk, And M. E. Bokova. 1970. Serologicheskaya Kharakteristika Shtammov Toksoplazm, Vydelennykh Ot Razlichnykh Vidov Zhivotnykh [= Serologic Characterization Of Strains Of Toxoplasma Isolated From Various Species Of Animals]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Disease], Alma-Ata, Kazakhstan, Ussr 3: 37-48, I. G. Galuzo, N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krikova, L. S. Bogdanyuk, M. E. Bokova, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 28, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (9 pages)

Translation of Galuzo, I. G., N. I. Sevast'yanova, M. N. Mel'nikh, A. E. Grigorashenko, U. D. Vustina, A. M. Krivkova, L. S. Bogdanyuk, and M. E. Bokova. 1970. Serologicheskaya kharakteristika shtammov toksoplazm, vydelennykh ot razlichnykh vidov zhivotnykh [= Serologic characterization of strains of Toxoplasma isolated from various species of animals]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions on the Natural Nidality of Disease], Alma-Ata, Kazakhstan, USSR 3: 37-48

Translated from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. …


Translation Of Kuzovkin, Ye. M. 1970. Toksoplazmy I Toksoplazmoz U Dikogo Kabana (Sus Scrofa Lin., 1758) [= Toxoplasma And Toxoplasmosis In The Wild Boar (Sus Scrofa Lin., 1758). Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases]. Alma-Ata, Kazakhstan, Ussr 3: 50-56, Ye. M. Kuzovkin, Frederick K. Plous Jr. Jan 1970

Translation Of Kuzovkin, Ye. M. 1970. Toksoplazmy I Toksoplazmoz U Dikogo Kabana (Sus Scrofa Lin., 1758) [= Toxoplasma And Toxoplasmosis In The Wild Boar (Sus Scrofa Lin., 1758). Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases]. Alma-Ata, Kazakhstan, Ussr 3: 50-56, Ye. M. Kuzovkin, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Conclusions

1. Under experimental conditions wild boars are sensitive to toxoplasmosis to a significant degree. In all 6 of the infected animals the disease ended lethally. The characteristic clinical symptom was involvement of the eyes.

2. Spontaneous Toxoplasma antibodies were observed in 36 (34.3%) of 105 boars studied with CFRs.

3. Toxoplasma was found microscopically in smears of kidney, spleen, and brain from 3 boars; the bioprobe method revealed it in the lymph nodes of 10 animals; in these cases the strain isolated was avirulent.

Translation number 30, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (5 …


Translation Of Pak, S. M. 1970. Trikhomonady Dikikh Vodoplavayushahikh Ptits [= Trichomonads Of Wild Waterfowl]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases. Alma-Ata, Kazakhstan, Ussr 3: 62-70, S. M. Pak, Frederick K. Plous Jr. Jan 1970

Translation Of Pak, S. M. 1970. Trikhomonady Dikikh Vodoplavayushahikh Ptits [= Trichomonads Of Wild Waterfowl]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases. Alma-Ata, Kazakhstan, Ussr 3: 62-70, S. M. Pak, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 31, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (23 pages)

Translation of Pak, S. M. 1970. Trikhomonady dikikh vodoplavayushahikh ptits [= Trichomonads of wild waterfowl]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions on the Natural Nidality of Diseases. Alma-Ata, Kazakhstan, USSR 3: 62-70

Translated from Russian to English by Frederick K. Plous, Jr., and edited by Norman D. Levine


The Terminology And Occurrence Of Certain Structures Of Digenetic Trematodes, With Special Reference To The Hemiuroidea, Harold W. Manter Jan 1970

The Terminology And Occurrence Of Certain Structures Of Digenetic Trematodes, With Special Reference To The Hemiuroidea, Harold W. Manter

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A number of terms applied to structures of digenetic trematodes are defined. The hermaphroditic sac of haploporids is distinguished from the sinus sac of hemiurids. The term sinus organ is applied to a cirrus-like organ in the sinus sac of several genera of Dinurinae.

Glomericirrus septemlobus Teixeira de Freitas and Kohn, 1965 is a synonym of Lecithochirium microstomum Chandler, 1935.

Erilepturus africanus Fischthal and Kuntz, 1963 is a synonym of Dinurus gizae Fischthal and Kuntz, 1963.


System Analysis And Nematode Phylogeny, Armand R. Maggenti Jan 1970

System Analysis And Nematode Phylogeny, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The purpose here is to suggest a method which will permit understanding of the phylogenetic relationships of contemporary representatives of the phylum Nematoda without fossils. It is not my intent to again offer a phylogeny for the Nematoda. To say that no real benefit or knowledge of phylogeny or evolution is possible without fossils is succumbing to apathy. One cannot deny or ignore that all systems, morphological, biological and chemical manifested in modern forms developed by evolutionary sequence. It is true that with a complete fossil record the rates of evolution and developmental pressures could be accurately evaluated. However, in …


Translation Of Karapet'yan, A. B. 1970. Fauna I Dinamika Chislennosti Moskitov V Ochagakh Vistseral'nogo Leishmanioza V Gornykh Raionakh Kopet-Daga [= The Fauna And Abundance Dynamics Of Sandflies In Nidi Of Visceral Leishmaniasis In The Mountain Regions Of The Kopet-Dag]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases]. Alma-Ata, Kazakhstan, Ussr 3: 180-189, A. B. Karapet'yan, Frederick K. Plous Jr. Jan 1970

Translation Of Karapet'yan, A. B. 1970. Fauna I Dinamika Chislennosti Moskitov V Ochagakh Vistseral'nogo Leishmanioza V Gornykh Raionakh Kopet-Daga [= The Fauna And Abundance Dynamics Of Sandflies In Nidi Of Visceral Leishmaniasis In The Mountain Regions Of The Kopet-Dag]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases]. Alma-Ata, Kazakhstan, Ussr 3: 180-189, A. B. Karapet'yan, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Conclusions

1. In the mountainous regions of the Kopet-Dag, where cases of visceral leishmaniasis have been observed, 19 species of sandflies were found.

2. The physico-geographic conditions of the mountain valleys and their individual parts may substantially affect the species content of the sandflies and the abundance of a given species.

3. On the north slopes of the Kopet-Dag a flight of 4 generations was observed at settled places; P. papatasi, S. arpaklensis, and S. grecovi were most numerous in human habitations, while in the rodent colonies one sees.P. caucasicus, P. mongolensis, and P. chinensis …


Translation Of Pak, S. M. 1970. Shtamm Toxoplasma Gondii (Shp). Vydelennyi Ot Rechnykh Krachek [= A Strain Of Toxoplasma Gondii (Shp) Isolated From The Common Tern]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases, Alma-Ata, Kazakhstan, Ussr 3: 49, S. M. Pak, Frederick K. Plous Jr. Jan 1970

Translation Of Pak, S. M. 1970. Shtamm Toxoplasma Gondii (Shp). Vydelennyi Ot Rechnykh Krachek [= A Strain Of Toxoplasma Gondii (Shp) Isolated From The Common Tern]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions On The Natural Nidality Of Diseases, Alma-Ata, Kazakhstan, Ussr 3: 49, S. M. Pak, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 29, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States (1 page)

Translation of Pak, S. M. 1970. Shtamm Toxoplasma gondii (SHP). Vydelennyi ot rechnykh krachek [= A strain of Toxoplasma gondii (SHP) isolated from the common tern]. Voprosy Prirodnoi Ochagovosti Boleznei [= Contributions on the Natural Nidality of Diseases, Alma-Ata, Kazakhstan, USSR 3: 49

Translated from Russian to English by Frederick A. Plous, Jr., and edited by Norman D. Levine


Parasitic Organisms In The Blood Of Arvicoline Rodents In Alaska, Francis H. Fay, Robert L. Rausch Dec 1969

Parasitic Organisms In The Blood Of Arvicoline Rodents In Alaska, Francis H. Fay, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A Grahamella-like organism (Schizomycetes: Bartonellaceae) was found in erythrocytes of laboratory-reared northern voles, Microtus oeconomus Pallas, which had been inoculated intraperitoneally with a saline suspension of ground fleas, Megabothris abantis (Roths.), from wild northern voles captured at Lower Ugashik Lake, Alaska Peninsula. A live-trapped northern vole from the same locality harbored trypanosomes referable to T. microti (Mastigasida: Trypanosomatidae). Two morphologically similar but biologically different strains of piroplasms (Piroplasmasida: Theileriidae) of uncertain generic status were isolated from northern voles of Ugashik Lake origin and from northern red-backed voles, Clethrionomys rutilus Pallas, from the vicinity of Anchorage, Alaska. In the natural …


Phlyctainophora Squali Sp. Nov. (Nematoda, Philometridae) From The Spiny Dogfish, Squalis Acanthias, Dwight R. Mudry, Murray D. Dailey Jul 1969

Phlyctainophora Squali Sp. Nov. (Nematoda, Philometridae) From The Spiny Dogfish, Squalis Acanthias, Dwight R. Mudry, Murray D. Dailey

Harold W. Manter Laboratory of Parasitology: Library Materials

Summary

Phlyctainophora squali sp. nov. is described from 23 female specimens recovered from the subcutaneous tissue of one of 440 Squalis acanthias caught off Los Angeles, California. This finding represents a new host and distribution for this genus. Phlyctainophora is placed in the family Philometridae on the basis of atrophication of vulva and anus, simple mouth, viviparity and location in tissue of fishes. The family diagnosis for Philometridae is amended to include Phlyctainophora which lacks an anterior ovary.


Digenetic Trematodes Of Marine Teleost Fishes From Biscayne Bay, Florida, Robin M. Overstreet Jun 1969

Digenetic Trematodes Of Marine Teleost Fishes From Biscayne Bay, Florida, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This study includes 111 species of Digenea from 69 of 113 species of teleost fishes examined from Biscayne Bay, Florida. Biscayne Bay represents the reported northern limit along the Atlantic coast for all but 22 of the 111 species. It represents the southern limit for only one, Didymocystis scomberomori. From the known collections reported in the literature, the Digenea from Biscayne Bay appear to consist primarily of a tropical fauna. Species previously known from the Pacific Ocean only are Botulisaccus pisceus and Pseudocreadium scaphosomum. There are 81 new host records.

Two new genera are created: Claribulla (Felloclistomatidae) and …


Pythonella Scelopori Sp. N. (Protozoa: Eimeriidae) From A Costa Rican Lizard, Donald W. Duszynski Jun 1969

Pythonella Scelopori Sp. N. (Protozoa: Eimeriidae) From A Costa Rican Lizard, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Describes Pythonella scelopori sp. n. (Protozoa: Eimeriidae) from a Costa Rican lizard.


Acanthocephala Of Louisiana Picidae With Description Of A New Species Of Mediorhynchus, Brent B. Nickol Apr 1969

Acanthocephala Of Louisiana Picidae With Description Of A New Species Of Mediorhynchus, Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty Publications

One hundred eighty-three woodpeckers of eight species collected in Louisiana were examined for Acanthocephala. Only the red-bellied woodpecker, Centurus carolinus, was infected. One of 53 was parasitized by an immature specimen of Mediorhynchus grandis; three by Centrorhynchus spinosus; 12 by Mediorhynchus centurorum sp. n. The new species of Mediorhynchus is distinguished by a trunk which is very narrow in the anterior 3 mm, but is suddenly expanded farther posteriad. Proboscis armature of 22 to 24 slightly spiral rows of six hooks and four or five spines each differs from all other species of the genus except M. …


Review Of Arctic Biology By H. P. Hansen (Oregon State University Press, 1967), Robert L. Rausch Apr 1969

Review Of Arctic Biology By H. P. Hansen (Oregon State University Press, 1967), Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Review of Arctic Biology by H.P. Hansen (Oregon State University Press, 1967).


Controll Of Eelworm Diseases Of Bananas In Western Australia : A Review, O M. Goss, M. G. Hawson Jan 1969

Controll Of Eelworm Diseases Of Bananas In Western Australia : A Review, O M. Goss, M. G. Hawson

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

During the 1950's, a decline in bananas in plantations in Carnarvon, caused by heavy infestations of eelworms, prompted investigations into eelworm control.

The work was started in 1955. The results and recommendations based on experiments have been published in Department of Agriculture Bulletin 3532.


Sheep Worm Control And Lambing Time In High Rainfall Areas, F C. Wilkinson Jan 1969

Sheep Worm Control And Lambing Time In High Rainfall Areas, F C. Wilkinson

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

Indications from a continuing sheep trial at Margaret River are that farmers in high rainfall areas could increase stocking rates and lamb growth rates by lambing in September- October rather than July-August.

The results also indicate that farmers in the area may be spending more than necessary on worm control.


Studies On The Helminth Fauna Of Alaska, Xlvi. Davainea Lagopodis Sp. Nov. (Cestoda: Davaineidae) From Grouse (Tetraonidae), Robert L. Rausch Jan 1969

Studies On The Helminth Fauna Of Alaska, Xlvi. Davainea Lagopodis Sp. Nov. (Cestoda: Davaineidae) From Grouse (Tetraonidae), Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cestodes of the genus Davainea Blanchard 1891, from grouse in various Eurasian and North American regions have been identified as D. tetraoensis Fuhrmann 1919, or less frequently as D. proglottina (Davaine 1860). Those from ptarmigan (Lagopus spp.) in Alaska, resembling D. tetraoensis in some details but having only a single row of rostellar hooks and fewer testes, were earlier reported as D. proglottina by Babero (1953). The study of additional material from grouse from Alaska indicates that this cestode is specifically distinct from the two species mentioned. It is described here as new.

German abstract: Beschrieben wird eine …


Axenic Ovarial Explants From The Marine Nematode Deontostoma Californicum On Culture Media, D. R. Viglierchio, Armand R. Maggenti, R. N. Johnson Jan 1969

Axenic Ovarial Explants From The Marine Nematode Deontostoma Californicum On Culture Media, D. R. Viglierchio, Armand R. Maggenti, R. N. Johnson

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The gonads of Deontostoma californicum were isolated from the organismal environment by dissection. In an attempt to approximate the in vivo condition and to maintain in vitro architecture and function ten media recommended for the culture of insect cells or organs were tested. The media were prepared in two series: one according to published recommendations and the second substituting filtered seawater for the inorganic salts and distilled water. Media were prepared as both liquid and gel (agar) with and without antibiotics. Whole animals and eggs were placed on the same culture media series as the ovarial explants. Ovarial explant reaction …


Zoonotic Diseases In The Changing Arctic, Robert L. Rausch Oct 1968

Zoonotic Diseases In The Changing Arctic, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Compatible with the biotic uniformity of northern regions, the occurrence of certain organisms which cause zoonotic diseases is general throughout the Arctic. In the past, most frequently affected by such diseases have been aboriginal peoples whose way of life involved encroachment upon naturally occurring parasite-host assemblages. Now, as changes take place in socioeconomic conditions in the Arctic, the importance of zoonotic diseases as a cause of morbidity may lessen among such peoples, but on the other hand, more nonaborigines may be affected. Although my remarks relate mainly to Alaska, again the biotic uniformity of the North seems to have its …


Some Aspects Of Carbohydrate Metabolism In The Cercariae Of Schistosoma Mansoni Sambon, 1907, A. Eugene Dunham Jr. Jun 1968

Some Aspects Of Carbohydrate Metabolism In The Cercariae Of Schistosoma Mansoni Sambon, 1907, A. Eugene Dunham Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

Cercariac of Schistosoma mansoni were studied for glycogen utilization, uptake of glucose from solution, lactic acid production, and respiration.

Using the anthrone method of determination of carbohydrate, the amount of glycogen used by a single cercaria in 4 hours is determined as 43.2 x 10-4 μg ± 6.6 x 10-4 μg.

Glucose was not observed to have been used from solution under the conditions of the experiment, even in the presence of trehalose. The determinations were made by the Glucostat method.

After deproteinization and desugarization, aliquots of supernatant from cercarial suspensions were analyzed for lactic acid using p-phenylphenol …


Concurrent Infections Of Schistosoma Mansoni And Trypanosoma Equiperdum In Mice, Venus Ee-Siriporn Jun 1968

Concurrent Infections Of Schistosoma Mansoni And Trypanosoma Equiperdum In Mice, Venus Ee-Siriporn

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this investigation was to determine factors which may influence the survival time of mice infected with Trypanosoma equiperdum and the effects of T. equiperdum on mice infected with Schistosoma mansoni.

In order to maintain experimentally obtained standard hours of survival (88 hrs) in mice inoculated intraperitoneally with 150,000 T. equiperdum, it was found that trypanosomes removed from the donor rat should be kept at 25 C and all counts, dilutions of the organisms, and injection should be completed within 1 hour after removal from the donor host. Survival time of mice is increased as the …