The prevalence and intensity of infection withEimeria species in sheep in Nyandarua district of Kenya

Maingi, N; Munyua, W.K.

doi:10.1007/bf01839257

Cited by 30 publications

(29 citation statements)

References 11 publications

(20 reference statements)

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“…This is in agreement with the reports by Maingi and Munyua (27), Yakhchali and Rezaei (14), and Craig et al (28). This is probably due either to equal likelihood of being exposed to Eimeria oocysts or to the absence of differences in protective immunity to the disease between sex groups.…”

Section: Discussionsupporting

confidence: 93%

Ovine coccidiosis: prevalence and associated risk factors inand around Addis-Zemen, Northwest Ethiopia

Lakew¹,

Tarekegn²

2016

Turk J Vet Anim Sci

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Section: Discussionsupporting

confidence: 93%

Ovine coccidiosis: prevalence and associated risk factors inand around Addis-Zemen, Northwest Ethiopia

Lakew¹,

Tarekegn²

2016

Turk J Vet Anim Sci

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“…El-Bahy et al [43], reported that Eimeria spp are abundant during April to June and their incubation period is about 1-2 week, so new infection could be occur in the same period as end of March till end of June. On the contrast, other researchers observed that there was no significant difference in OPG during seasons [44].…”

Section: Locality Examined Number Infected Number Prevalence (%) Signmentioning

confidence: 77%

Subclinical Bovine Coccidiosis in Al -Baha Area, Saudi Arabia

Ibrahim¹,

Soliman²,

Alghamdi³

2015

Int J Vet Sci Res

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Subclinical bovine coccidiosis is an economic problem worldwide because they appear normal outwardly, but developmental stages damage the absorptive surface of the intestine and weaken the immune system. Information on the occurrence, diversity and economic losses due to Eimeria infection in cattle is lacking in Al-Baha area. The objective of this work was to study prevalence of subclinical bovine coccidia, throughout Al-Baha area and to evaluate various factors that might potentially influence prevalence and rate of pathogen excretion. A cross sectional study was conducted from July 2014 up to Jun 2015. Out of the total 534 fecal samples examined for Eimeria, 167 (31.27%) were found infected with eight species of Eimeria. Eimeria bovis was found to be the highest frequent species (25.84%), followed in order by E. zuernii (20.78%), E. ellipsoidalis (13.11%), E. canadensis (10.86%), E. alabamensis (8.05%), E. auburnensis (7.78%), E. cylindrica (5.43%), and E. subspherica (2.06%). Young cattle (≤12 month old) had significantly higher infection (P<0.01) of Eimeria. Higher infection of Eimeria was observed in female cattle compared to male ones. Co-infection was commonly present and declined with host age. Positive pair-wise associations were found between Eimeria species. In conclusion, this study was confirm that farm management frequently does not meet the requirements of effective coccidian control and the pathogenic coccidian, E. bovis and E. zuernii are the highest prevalent species in Al-Baha cattle populations. Further epidemiological investigations are required to investigate the different agro-ecological risk factor on the occurrence of bovine coccidiosis.

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“…This general juvenile bias in infection of Eimeria spp. has also been observed in badger populations in England (Anwar et al 2000 ;Newman et al 2001) and is well documented in domestic sheep throughout the world (O'Callaghan et al 1987 ;Maingi and Munyua, 1994 ;Arslan et al 1999). Acquired immunity has been shown to cause a decrease in infection of various Eimeria species with host age (Chapman, 1974 a, b ;Gregory and Catchpole, 1989 ;Yun et al 2000).…”

Section: Associations With Host Age and Sexmentioning

confidence: 82%

Epidemiology of parasitic protozoan infections in Soay sheep (Ovis ariesL.) on St Kilda

et al. 2006

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The feral Soay sheep (Ovis aries L.) population on Hirta, St Kilda, is host to a diverse component parasite community, but previous parasitological studies of the population have only focussed on the metazoan species. This paper reports the first epidemiological study of the protozoan species comprising Cryptosporidium parvum, Giardia duodenalis and 11 species of Eimeria in Soay sheep across 3 years of varying host population density. Prevalence and intensity of almost all species of protozoa significantly decreased with host age, with the exception of E. granulosa, which increased in prevalence with host age. The prevalence of C. parvum appeared to vary positively with host population density but that of G. duodenalis did not vary significantly with density. Most species of Eimeria showed a distinct lag in infection level following the host population crash of 2002, taking up to 2 years to decrease. Mixed Eimeria species intensity and diversity were highest in 2002, a year of low host density. Parasite diversity decreased with host age and was higher in males. There were 5 positive pair-wise associations between protozoa species in terms of prevalence. The results of this study highlight the potential for protozoal infection to shape the evolution of parasite resistance in wild host populations harbouring diverse parasite species.

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The prevalence and intensity of infection withEimeria species in sheep in Nyandarua district of Kenya

Cited by 30 publications

References 11 publications

Ovine coccidiosis: prevalence and associated risk factors inand around Addis-Zemen, Northwest Ethiopia

Ovine coccidiosis: prevalence and associated risk factors inand around Addis-Zemen, Northwest Ethiopia

Subclinical Bovine Coccidiosis in Al -Baha Area, Saudi Arabia

Epidemiology of parasitic protozoan infections in Soay sheep (Ovis ariesL.) on St Kilda

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