Distribution, prevalence and intensity of Schistosoma bovis infection in cattle in Iringa district, Tanzania

Makundi, A.E.; Kassuku, A.A.; Maselle, R.M.; Boa, M.E.

doi:10.1016/s0304-4017(97)00179-9

Cited by 14 publications

(19 citation statements)

References 6 publications

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“…While these figures are lower than those in previous studies in the southern highlands of Tanzania, which reported prevalences of 58.5%, 75.2% and 22.8% respectively for the three genera of trematode [13,14,21], prevalences in individual villages varied greatly, with 90-100% of tested cattle infected with F. gigantica and paramphistomes and up to 13% with S. bovis in some villages (Table 1). The differences in prevalence might be due to the variations in ecological and climatic conditions in the study areas [22,23].…”

Section: Discussioncontrasting

confidence: 60%

“…Trematode species that have been reported in Tanzania are F. gigantica [5], Fasciola hepatica [6], Schistosoma bovis [7], Paramphistomum species and Dicrocoelium hospes [8]. Abattoir surveys [9-13], found trematode infections in the southern highlands zone, northern zone, Lake zone and eastern zone of Tanzania and the epidemiology and control of trematode infections in cattle has been studied in the Southern Highlands [5-7,14]. Scanty information is available on the epidemiology in cattle in other parts of the country where trematode infections have been reported.…”

Section: Introductionmentioning

confidence: 99%

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Trematode infections in cattle in Arumeru District, Tanzania are associated with irrigation

et al. 2014

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BackgroundThe relationship between the environment and infection of cattle with trematodes was studied at Arumeru District, Arusha Region, northern Tanzania. Randomly selected villages were grouped into three cattle management strata, (i) zero-grazing (ZZ) (ii) communal grazing without irrigation (ZC) and (iii) communal grazing with irrigation (ZCI).MethodsFaecal samples were collected from 241 cattle, and processed using the Flukefinder® method. Snail intermediate hosts were collected with a snail scoop from the water bodies in the study villages and identified morphologically.ResultsThe overall prevalence of F. gigantica, paramphistomes and S. bovis were 33%, 37% and 2% respectively. Prevalence for F. gigantica, paramphistomes, and S. bovis for each stratum were, zero-grazing (ZZ) (29.7%, 36.0% and 0%), communal grazing without irrigation (ZC) (6.3%, 15.0% and 3.8%) and communal grazing with irrigation (ZCI) (57.7%, 56.7% and 1.0%) respectively. The differences between strata were significant for F. gigantica (p < 0.001) and paramphistomes (p < 0.05) but not for S. bovis. Irrigation could account for the high prevalence of F. gigantica and paramphistomes in the ZCI stratum as compared to the ZZ and ZC strata. The higher prevalences of F. gigantica and paramphistomes in the ZZ stratum compared with the ZC stratum were unexpected and attributed to the practice of farmers in some ZZ stratum villages buying fodder for their cattle obtained from pastures in ZCI villages.ConclusionTrematode infections in cattle are prevalent in Arumeru District. Fasciola gigantica and paramphistomes are associated with grazing in areas with irrigation of crops. Zero-grazing of cattle does not necessarily prevent the risk of infection.

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Section: Discussioncontrasting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Trematode infections in cattle in Arumeru District, Tanzania are associated with irrigation

et al. 2014

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“…Liver fluke transmission is dependent on the presence of its snail intermediate host so distribution of the parasite is limited to geographic areas where the appropriate snail species is present [39]. A high prevalence of fasciolosis has been shown towards the end of the dry season and the early part of the rainy season [21,41]. This seasonality is in agreement with other investigators who suggested that heavy mortality as a result of fasciolosis occurred during the dry season [49,51].…”

Section: Climate Factorssupporting

confidence: 79%

“…They cause significant economic losses due to reduction in production efficiency by 5 per cent in mild infestations to 10 per cent in more severe ones and in weight loss and abattoir condemnations [21,41,[43][44][45][46][47][48]. The most prevalent species in Tanzania are Fasciola gigantica and F. hepatica [35,39,41].…”

Section: Trematodesmentioning

confidence: 99%

Helminths and Protozoa of the Gastrointestinal Tract of Ruminants in Tanzania

S¹

2017

Animal Review

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Article HistoryTanzania has one of the largest populations of domestic ruminants in Africa. Their performance is less than their potential. Health, particularly disease due to gastrointestinal parasites, is a major constraint to improved productivity. Internal parasites also affect the country's very diverse and huge array of wild ruminants. This review is based on a thorough search of the formal and informal literature pertaining to gastrointestinal parasites of ruminants in Tanzania. The occurrence and geographical distribution of helminth (nematodes, trematodes and cestodes) and protozoan parasites are presented. Cattle, goat and sheep nematodirus (roundworm) infection usually comprises mixed infections of several taxa of which 13 species in nine genera have been recorded. A total of seven species of trematodes (flukes) in six genera have been found. Some six species of cestodes (flatworms) have been recorded, three being in the genus Taenia. The most prevalent species of protozoan parasites, of which seven have been identified in cattle and 18 in sheep and goats, belong to the genus Eimeria: four other species of protozoan parasites are also recorded. A general overview of the epidemiology of gastrointestinal parasites is provided and the main methods of control are discussed.Contribution/Originality: Domestic ruminants are an important part of the Tanzania economy. They contribute to food security, biodiversity, household income and human welfare. This paper reviews with the aid of 74 published references the status and distribution of the main internal parasites of domestic ruminants in Tanzania.

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“…In some areas it can represent a serious veterinary problem, e.g., in Sudan prevalence in cattle can reach nearly 90 % [ 66 ]. In other areas, lower prevalence rates have been reported, e.g., in Tanzanian cattle 34 % [ 67 ]. Cattle, horses, donkeys, sheep, goats, camels, pigs, antelopes, and rodents can serve as the defi nitive hosts.…”

Section: Schistosoma Bovismentioning

confidence: 98%