The rabbit coccidium Eimeria flavescens Marotel and Guilhon, 1941: an electron microscopic study of its life cycle

Pakandl, Michal; Cerník, F; Coudert, Pierre

doi:10.1007/s00436-003-0946-y

Cited by 17 publications

(17 citation statements)

References 15 publications

(26 reference statements)

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“…The studies on their life cycles (Norton et al 1979, Licois et al 1992, Pakandl et al 2003 showed that the last generation of meronts is developed at 7 DPI. At 14 DPI, only gamonts and oocysts are present in the intestine and the rabbits excrete oocysts, but their numbers are lower than at 10-12 DPI.…”

Section: Discussionmentioning

confidence: 99%

Immune response to rabbit coccidiosis: a comparison between infections with Eimeria flavescens and E. intestinalis

Pakandl¹,

Hlásková²,

Poplstein³

et al. 2008

FOLIA PARASIT

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Abstract. Seven-to eight-week-old rabbits were infected with Eimeria intestinalis Cheissin, 1948, a highly immunogenic coccidium, or Eimeria flavescens Marotel et Guilhon, 1941, which is weakly immunogenic. Immune response was investigated at 7, 14 and 21 days post inoculation (DPI). The level of serum immunoglobulins, lymphocyte proliferation stimulated by parasite antigens and weight of mesenteric lymph nodes (MLN) showed similar dynamics in rabbits inoculated with both coccidia species. The amount of serum IgG and IgM, but not IgA, was increased from 14 DPI. The lymphocytes from MLN of infected animals significantly reacted to stimulation with parasite antigen 14 and 21 DPI and MLN were enlarged at 14 DPI. Thus, both parasite species elicited immune response characterized by these parameters in a similar manner despite of their different immunogenicity. The only apparent difference in the responses was in the percentage of CD8+ lymphocytes in the specific site of parasite development (the last third of the small intestine in E. intestinalis, caecum in E. flavescens), which increased in rabbits infected with E. intestinalis but not with E. flavescens. This parameter reflects the status of local immunity and hence the results suggest that the local reaction plays an important role in induction of protective immunity to coccidia in rabbits.

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Section: Discussionmentioning

confidence: 99%

Immune response to rabbit coccidiosis: a comparison between infections with Eimeria flavescens and E. intestinalis

Pakandl¹,

Hlásková²,

Poplstein³

et al. 2008

FOLIA PARASIT

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“…In addition, the type B meronts produced 30-150 merozoites in the original strain (Pakandl et al 2003), but only 20-60 in the PL. Surprisingly, not the last asexual generation, like in other rabbit coccidia (Pakandl et al 1996a(Pakandl et al , 1996c, but two preceding generations were lacking in the life cycle of PL.…”

Section: Discussionmentioning

confidence: 98%

“…A pure strain of E. flavescens (strain Va´cha) was previously used to study endogenous development of this species (Pakandl et al 2003).…”

Section: Parasite Strainmentioning

confidence: 99%

“…The last merogony as well as gamogony took place in crypts of the large intestine. In the present work, selection of a precocious line of E. flavescens is described and its endogenous cycle is characterised and compared with an already known cycle of the original strain (Pakandl et al 2003).…”

Section: Introductionmentioning

confidence: 99%

“…The endogenous cycle of the original strain (OS) was already described (Pakandl et al 2003). Briefly, five asexual generations were observed and, like in other rabbit coccidia (Streun et al 1979;Licois et al 1992;Pakandl et al 1993;1996a-c;Pakandl and Coudert 1999), two types of meronts and merozoites were found in each generation.…”

Section: Introductionmentioning

confidence: 99%

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Selection of a precocious line of the rabbit coccidium Eimeria flavescens Marotel and Guilhon (1941) and characterisation of its endogenous cycle

Pakandl

2005

Parasitol Res

Self Cite

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The SPF rabbits were inoculated with oocysts of Eimeria flavescens and the first newly developed oocysts were recovered. They were used for inoculation of other rabbits which consequently excreted oocysts sooner than in the previous passage. By repeated use of this method, the prepatent period was shortened after 18 passages by more than 60 h. The endogenous development of this precocious line (PL) differed from that of the original strain (OS). Compared to OS, two asexual generations, second (or third) and fourth, were absent in PL. The first merogony took place in the jejunum and ileum in OS and, in contrast, in the large intestine in PL. Like in other rabbit coccidia, two types of meronts (A and B) were seen in each generation. However, the ratio of B: A meronts in the last (fifth) asexual generation as well as ratio of microgamonts:macrogamonts differs in OS and PL.

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Rabbit Coccidiosis

Lopes,

Simões

2024

Veterinary Care of Farm Rabbits

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The rabbit coccidium Eimeria flavescens Marotel and Guilhon, 1941: an electron microscopic study of its life cycle

Cited by 17 publications

References 15 publications

Immune response to rabbit coccidiosis: a comparison between infections with Eimeria flavescens and E. intestinalis

Immune response to rabbit coccidiosis: a comparison between infections with Eimeria flavescens and E. intestinalis

Selection of a precocious line of the rabbit coccidium Eimeria flavescens Marotel and Guilhon (1941) and characterisation of its endogenous cycle

Rabbit Coccidiosis

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