Ascaridia galli (Nematoda): Development and survival in gnotobiotic chickens
| Autor: | Joyce Johnson, W. Malcolm Reid |
|---|---|
| Rok vydání: | 1973 |
| Předmět: |
Time Factors
animal structures Fowl Immunology Bacillus cereus Ascaridia Microbiology Animals Germ-Free Life Ascaridia galli Poultry Diseases Ascariasis Larva biology fungi Penicillium General Medicine biology.organism_classification Intestines Infectious Diseases Nematode Cereus Parasitology Chickens Bacteria Bacillus subtilis |
| Zdroj: | Experimental Parasitology. 33:95-99 |
| ISSN: | 0014-4894 |
| DOI: | 10.1016/0014-4894(73)90013-1 |
| Popis: | Infection and growth rates of the fowl nematode Ascaridia galli were compared in germ-free, conventional, and other gnotobiotic chickens. Uniform experimental infections induced in chickens at 7–12 days of age showed that significantly fewer (P < 0.01) worms established themselves in germ-free chickens than in chickens with conventional flora. Numbers of worms established in monoassociated hosts (Bacillus subtilis, B. cereus, and Penicillium sp.) were intermediate between those in grossly contaminated and germ-free hosts. Mean worm lengths were shorter from germ-free than conventional hosts but differences were not statistically significant. These experiments demonstrate that some A. galli larvae may establish themselves and grow for 14 or 21 days postinoculation in a germ-free environment. |
| Databáze: | OpenAIRE |
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