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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
The Development Of The Endogenous Stages Of Eimeria Ninakohlyakimovae (Yakimoff And Rastegaieff, 1930) In Domestic Sheep, Richard S. Wacha
The Development Of The Endogenous Stages Of Eimeria Ninakohlyakimovae (Yakimoff And Rastegaieff, 1930) In Domestic Sheep, Richard S. Wacha
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Forty-five mixed breed lambs, 1 to 4 months of age, were used to study the patent period and endogenous stages in the life cycle of Eimeria ninakohlyakimovae. The lambs were inoculated with oocysts of this species and killed at daily intervals from 1 through 14 days after inoculation. From all lambs of the study sections of intestinal tissue were prepared by routine methods for histological examination.
E. ninakohlyakimovaewas observed to have 2 generations of schizonts in its endogenous development. Mature, first-generation schizonts had an average diameter of about 290 μ and had many thousands of merozoites, averaging 11.9 …
Growth Of Eimeria Alabamensis From Cattle In Vitro And The Changes In Fine Structure Associated With Schizogony, J. Robert Sampson
Growth Of Eimeria Alabamensis From Cattle In Vitro And The Changes In Fine Structure Associated With Schizogony, J. Robert Sampson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Monolayer primary cultures of cells from bovine embryonic intestine (BEint), kidney (BEK), spleen (BES), and thyroid (BET) and cell line cultures of embryonic bovine trachea ( EBTr) and synovium (BESy)as well as established cell line cultures of Madin-Darby bovine kidney (MDBK), human intestine (Int 407), and Syrian hamster kidney (BHK-21) were inoculated with freshly excysted sporozoites of Eimeria alabamensis and observed for 4 days. Sporozoites penetrated all cell types during the first 24 hours in culture. Numerous intracellular sporozoites, trophozoites, and binucleate schizonts were seen in all cell cultures except Int 407. The best development occurred in BES and MDBK …
The Effects Of Formaldehyde On The Frequency Of Reversion Of The White-Ivory Mutant Of Drosophila Melanogaster, Ruth Ellen D. Wood
The Effects Of Formaldehyde On The Frequency Of Reversion Of The White-Ivory Mutant Of Drosophila Melanogaster, Ruth Ellen D. Wood
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study is an analysis of the effects of formaldehyde, a chemical which is both recombinogenic and mutagenic, on white-ivory (wi) a highly mutable allele of the white locus of Drosophila. Formaldehyde is shown to significantly increase the reversion frequency of wi. The results of this investigation differ from earlier observations in three respects: (1) there is a positive correlation between RNA (ribonucleic acid) concentration and reversion frequency in the presence of formaldehyde, but reversion does not appear to be totally RNA dependent; (2) female germ cells are more sensitive than those of the male; …
Organization Of The Bird Community Of A Michigan Oak Forest, Jerome D. Wenger
Organization Of The Bird Community Of A Michigan Oak Forest, Jerome D. Wenger
Masters Theses
No abstract provided.
The Fishes Of The Big South Fork Of The Cumberland River System, Charles Edward Comiskey
The Fishes Of The Big South Fork Of The Cumberland River System, Charles Edward Comiskey
Masters Theses
This thesis reports the results of a survey of the fishes of the Big South Fork of the Cumberland River system in Tennessee and Kentucky. This system represents the southeasterly extension of the Cumberland River system.
The survey was conducted from June, 1968, to September, 1969, with the majority of the collecting being made in the summer months of both years. A variety of collecting techniques were employed. These included ten and twenty-foot small mesh seine nets, thirty and sixty-foot bag seines, gill nets and sodium cyanide.
A total of sixty-four collections are included, sixty-one made by the author, and …
Reproduction In Three Species Of Lizards From Dominica, West Indies, Carolynn Ann Somma
Reproduction In Three Species Of Lizards From Dominica, West Indies, Carolynn Ann Somma
Dissertations, Theses, and Masters Projects
No abstract provided.
An Experimental Study Of The Food Plant Preferences Of The Black Cutworm, Agrotis Ypsilon (Hufnagel), Alan C. York
An Experimental Study Of The Food Plant Preferences Of The Black Cutworm, Agrotis Ypsilon (Hufnagel), Alan C. York
Masters Theses
No abstract provided.
Studies On The Nutritional Aspects Of Tubificid Worms, Thomas Nelson Seng
Studies On The Nutritional Aspects Of Tubificid Worms, Thomas Nelson Seng
Masters Theses
No abstract provided.
A Histochemical Study Of The Ovary Of The Milkweed Bug Oncopeltus Fasciatus (Dallas), With Special Reference To The "Intermediate" Cell, Khian Kioe Liem
A Histochemical Study Of The Ovary Of The Milkweed Bug Oncopeltus Fasciatus (Dallas), With Special Reference To The "Intermediate" Cell, Khian Kioe Liem
Masters Theses
No abstract provided.
The Comparative Morphology Of The Female Gonads Of Two Members Of The Nematode Order Tylenchida, Owen G. Coker
The Comparative Morphology Of The Female Gonads Of Two Members Of The Nematode Order Tylenchida, Owen G. Coker
Masters Theses
No abstract provided.
Aging Illinois White-Tailed Deer By The Tooth Replacement And Wear And The Cementum Annuli Techniques, James B. Bertoglio
Aging Illinois White-Tailed Deer By The Tooth Replacement And Wear And The Cementum Annuli Techniques, James B. Bertoglio
Masters Theses
No abstract provided.