BIOMAT Database Logo BIOMAT Database Logo

Scanning electron microscopy of damage to the cecal mucosae of chickens infected with Eimeria tenella. 1978

W J Bemrick, and R F Hammer

A group of chickens were inoculated with 100,000 Eimeria tenella oocysts each. The birds were sacrificed on days 4-14 postinoculation. Tissue samples from 4 different areas of each cecum examined were obtained and processed by the osmium-thiocarbohydrazide-osmium technique. Examination of the prepared tissues with the scanning electron microscope revealed lesions ranging from localized tissue swelling to complete disruption of the mucosal epithelium due to the rupture of large numbers of epithelial cells. The amount of damage to the tissue varied greatly, tending to be most obvious in the 2 more distal regions of the ceca examined. Observed in addition to the pathological changes demonstrated were some specific stages of the parasite, including schizonts, merozoites, and oocysts.

UI MeSH Term Description Entries
D007413 Intestinal Mucosa Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI. Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D008855 Microscopy, Electron, Scanning Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY. Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D011201 Poultry Diseases Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild. Disease, Poultry,Diseases, Poultry,Poultry Disease
D002432 Cecum The blind sac or outpouching area of the LARGE INTESTINE that is below the entrance of the SMALL INTESTINE. It has a worm-like extension, the vermiform APPENDIX. Cecums
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D003048 Coccidiosis Protozoan infection found in animals and man. It is caused by several different genera of COCCIDIA. Besnoitiasis,Besnoitiosis,Besnoitiases,Besnoitioses,Coccidioses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

Related Publications

W J Bemrick, and R F Hammer
Scanning electron microscopy of the cecal mucosa in Eimeria-tenella-infected and uninfected chickens.
January 1975, Avian diseases,
W J Bemrick, and R F Hammer
Eimeria tenella: cecal contraction in infected chickens.
October 1983, Experimental parasitology,
W J Bemrick, and R F Hammer
Cecal filling and defecation of chickens infected with Eimeria tenella.
May 1987, Zentralblatt fur Bakteriologie, Mikrobiologie, und Hygiene. Series A, Medical microbiology, infectious diseases, virology, parasitology,
W J Bemrick, and R F Hammer
The influence of various bacteria on the cecal mucosa of monoflora chickens infected with Eimeria tenella. A scanning electron microscopic study.
July 1987, Zentralblatt fur Bakteriologie, Mikrobiologie, und Hygiene. Series A, Medical microbiology, infectious diseases, virology, parasitology,
W J Bemrick, and R F Hammer
Scanning electron microscopy of schizogony in Eimeria tenella.
August 1978, The Journal of protozoology,
W J Bemrick, and R F Hammer
Scanning electron microscopy of the duodenal mucosa of chickens infected with Eimeria acervulina.
October 1975, Parasitology,
W J Bemrick, and R F Hammer
Scanning electron microscopy of Eimeria tenella microgametogenesis and fertilization.
August 1977, The Journal of parasitology,
W J Bemrick, and R F Hammer
The invasion of Salmonella typhimurium into the cecal wall of chickens infected with Eimeria tenella.
December 1982, Zentralblatt fur Bakteriologie, Mikrobiologie und Hygiene. 1. Abt. Originale A, Medizinische Mikrobiologie, Infektionskrankheiten und Parasitologie = International journal of microbiology and hygiene. A, Medical microbiology, infectious...,
W J Bemrick, and R F Hammer
Adhesion of bacteria to the cecal mucosal surface of conventional and germ-free chickens infected with Eimeria tenella.
February 1992, American journal of veterinary research,
W J Bemrick, and R F Hammer
Carbohydrate stores in chickens infected with Eimeria tenella.
October 1970, Parasitology,
Copied contents to your clipboard!