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Details van artikel 6 van 21 gevonden artikelen
| Titel: |
Eimeria brunetti: Selection and characteristics of a precocious (and attenuated) line |
| Auteur: |
Shirley, M. W. McDonald, V. Bellatti, M. A. |
| Verschenen in: |
Avian pathology |
| Paginering: | Jaargang 15 (1986) nr. 4 pagina's 705-717 |
| Jaar: |
1986 |
| Inhoud: |
A line of Eimeria brunetti with an abbreviated life cycle (i.e. a 'precocious' line) was obtained by repeated selection for the first oocysts to be passed during an infection in chickens. The precocious line, when compared with the parent strain, was characterised by a significant attenuation of virulence, reduced output of oocysts and an endogenous development in which third-generation schizonts were almost completely eliminated. However, despite the loss of asexual stages, the immunogenicity of the precocious line was not different from that of its parent strain. A sub-line obtained from a single oocyst isolated after 27 generations of selection was further serially passaged using oocysts recovered during the peak of the patent period. The sub-line remained significantly attenuated after nine passages. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 21 gevonden artikelen
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