Sheep prefer to eat broadleaf plants forbs and grasses. Risk factors and geospatial modelling for the presence of. A related parasite, fasciola gigantica, also can infect people. If so, share your ppt presentation slides online with. A comparative study article pdf available in the indian veterinary journal 66. Small ruminant fasciolosis and its direct financial loss. Diversity and prevalence of trematodes in livers of sheep and goat in quetta, pakistan sher ahmed, muhammad nawaz, roomana gul. Mapping the distribution of this trematode in livestock cattle, goat and sheep can give indications and information of the possible risk areas for endemic fasciolosis fig. The phylogenetic analysis based on cox1 sequence jahani, z. The principal definitive hosts of these parasites are cattle, sheep and goat. In general, fascioliasis is more common in livestock and other animals than in people. Table 2 lists the dewormers currently approved for use in sheep and goats and the parasites they are effective against.
Fasciola hepatica in sheep, liver fluke in small ruminants. The histopathology of fasciola hepatica infections in sheep. Paper open access prevalence of fasciolosis emphasis on. Introduction fasciolosis, caused by the digenetic trematodes of the genus fasciola, is one of the most important plant borne helminthes infections of human and livestock in many parts of the world. It infects the livers of various mammals, including humans. Pdf a study was conducted to identify the current status of fasciola and paramphistomum infections in small ruminants in terengganu. Fasciola hepatica commonly called sheep liver fluke. Other hosts include kangaroos, wombats and rabbits, which may maintain the contamination of pastures as reservoirs.
Fasciolidae, have a serious impact on the farming industry and public health. Triclabendazole treatment in experimental goat fasciolosis. Large ruminants exposed to the liver fluke infection are subjected to liver condemnation, reduction in meat. Fasciola hepatica the common names are the sheep liver fluke and the common liver fluke. America, great lakes region only known found in manitoba f. Little is known on the identity and genetic variability of fasciola populations in sheep. The goats were inoculated with a single dose of 50 metacercariae. Fasciola gigantica in ruminants digestive system merck. Fasciola gigantica is similar in shape to fasciola hepatica but is longer 75 mm, with less clearly defined shoulders, and is 12 mm wide. The adult fluke lives in the bile ducts of the liver, laying eggs which travel out of the host with the. Egg production capacity in fasciola gigantica japanese strain was estimated from egg count data obtained by the experimental infection of two goats.
Fasciola hepatica is an important parasite of sheep, goats and cattle and has been the. Fasciola hepatica fasciolosis is an economically important and potentially fatal disease of sheep which can be associated with particular regions throughout the world directly linked to the habitat of an aquatic mud snail. Here is a discussion of some 40 of these parasites, including life histories, symptoms of infestation, medicinal treat. Eggs enter the duodenum with bile and exit with the feces. Even so, the number of infected people in the world is thought to exceed two million. Fasciola hepatica, a liver fluke, is a causative agent of fascioliasis in mammals sheep, cattle, goat, ox and other ruminants, pig, hare rabbit, beaver, elephant, dog, cat and kangaroo. Comparative diagnosis of serum igg1 and coproantigen elisa. Education and information about fasciola and fascioliasis, epidemiology. Prevalence of fasciolosis and dicrocoeliosis in slaughtered. Estimated egg production of fasciola gigantica japanese. Mixed breed goats were infected with metacercariae of fasciola hepatica and t h e resulting worm burdens were q u a n t i t a t e d a f t e r primary and secondary exposure of t h e goats to the parasite. Efficacy of triclabendazole against experimental fasciola gigantica infection in sheep, goat, buffalo and rabbit. Liver fluke can develop to sexual maturity in sheep, cattle, horses, pigs, goats, alpacas and deer.
Serologic detection of antibodies against fasciola hepatica in native. Both fasciola hepatica and fasciola gigantica are known to occur in cattle, providing the opportunity for genetic recombination. Seasonal dynamics of fasciola hepatica burdens in sheep. Fasciola infection in goats slaughtered from port harcourt. Pdf fasciola and paramphistomum infections in small. Sheep were diagnosed by stool microscopy after sedimentation, and positive animals were randomized to oxfendazole n 20 or no treatment n 20. Differentiation of cattle and sheep originated fasciola. Fasciola and paramphistomum infections in small ruminants sheep and goat in terengganu mursyidah a. Natural host are cattle occurs in gulf states and pacific north west 45 months brain worm meningeal worm lama, sheep, goat are dead hosts red tail deer, snail. However, certain other mammals, including humans, may be infected as an accidental host. Pdf liver distomatosis in cattle, sheep and goats of. Host responses during experimental infection with fasciola.
Fascioliasis is found in all continents except antarctica, in over 70 countries, especially where there are sheep or cattle. Using dairy sheep from farms in southern italy, stool samples were collect from 100 sheep, which were randomly selected. Judged by faecal egg counts two or three weeks after treatment the best results 98. The susceptibility of the goat to fasciola hepatica infections.
The large liver fluke lives in the bile ducts of many animals including man. Molecular and morphological characterization of fasciola. Note the black excretory pigment hematin deposited by the fluke. Fasciolosis is known globally to be an important helminthic disease of ruminants caused by liver fluke species of the genus. Goat infection, even if less frequent and less important than sheep or cattle fasciolosis, represents a major constraint on goat production in certain regions. Efficacy of a single oral dose of oxfendazole against. In domestic goats capra hircus fascioliasis is presumed to be a less important. Sheep and goats may look similar sometimes, but it doesnt matter which is your favoritethey both make a huge impact for a farming family in need. Fascioliasis occurs in many areas of the world and usually is caused by f. In the unusual hosts, such as man and the horse, the fluke may be found in the lungs, under skin or other situations. Fascioliasis in sheep and cattle is a serious problem both in terms of economic loss and transmission to humans.
Sheep and goats are able to select the most nutritious parts of a plant. Risk factors and geospatial modelling for the presence of fasciola hepatica infection in sheep and goat farms in the greek temperate mediterranean environment volume 8 issue 7 v. Annual financial loss estimation was done for the losses due to liver condemnation based on average number of small ruminants slaughtered. The efficacy of a single oral dose of 30 mgkg of oxfendazole against fasciola hepatica was evaluated in a controlled study in naturally infected sheep. Adult liver flukes, which are about 10 mm wide and 25 mm long, live in the bile duct, feeding on blood, bile and epithelial cells. Prevalence of fasciolosis and dicrocoeliosis in slaughtered sheep. The prevalence of fasciolosis was found to be higher in sheep and goat with poor body condition than those with medium and good body condition ones and the prevalence was 76. The disease caused by the fluke is called fasciolosis or fascioliasis, which is a type of helminthiasis and has been classified as a neglected. Sheep were separated in groups depending on their weight and mean eggs count. Fasciola hepatica in ruminants digestive system merck. If the metacercariae are ingested by sheep, cattle or other hosts, including people f, the.
Because so many animals can ac as hosts, the reservoir for f. The accurate diagnosis of fasciolosis and the right choice of medicine remained a difficult task for the field practitioners. Fasciola hepatica, also known as the common liver fluke or sheep liver fluke, is a parasitic trematode fluke or flatworm, a type of helminth of the class trematoda, phylum platyhelminthes. In general, fascioliasis is more common and widespread in animals than in people. The adult mature flukes are found in the bile ducts the duct system of the liver of infected people and animals, such as sheep and cattle. During the study of seasonal dynamics of fasciola hepatica burdens in sheep, 106711 fecal samples of sheep were examined during 01. A new stool exam was performed 10 days after treatment.
Habitata parasite of herbivorous anim als sheep, goat and cattle, living in. Pdf prevalence of fasciolosis in cattle, sheep, and goats. People can be infected by eating watercress from naturally contaminated creeks. Fasciola hepatica which infects goats, sheep and cattle also require an intermediate host to develop through stages that have little resemblance to one another. Across sectional study was conducted from december 2014 to february 2015 to determine the prevalence of fasciolosis and associated risk factors of small ruminant in selected districts of lower awash river basin. A total of 295 faecal samples were collected from 166 goat and 129 sheep, kept under pastoral and agropastoral area. Fasciola and paramphistomum infection in large ruminants. Prevalence of fasciola hepatica in domesticated cattle of. Department of parasitology, faculty of veterinary medicine, university of tehran, tehraniran center of. The susceptibility of t h e goat to fasciola hepatica infections. The secret lives of goat parasites goat owners mount a significant effort to eliminate infections of parasites which can cause harm and misery to their goats. Pdf fasciola and paramphistomum infections in small ruminants.
The histopathology of fasciola hepatica infections in sheep volume 58 issue 1 c. Treatment of fasciola gigantica in sheep springerlink. It is found in warmer climates asia, africa in cattle and buffalo, in which it is responsible for chronic fasciolosis, and in sheep, in which the disease is frequently acute and fatal. A study on prevalence of helminths of sheep and goat in. The parameters studied were the overall prevalence prevalence in a year and monthly variation in the prevalence of this parasite. Natural host are cattle occurs in gulf states and pacific north west 45 months brain worm meningeal worm lama, sheep, goat are dead hosts. It affects humans, but its main host is ruminants such as cattle and sheep. Pdf efficacy of triclabendazole against experimental. Small ruminant fasciolosis and its direct financial loss in. Dec 14, 2017 fasciola hepatica is a flukeendo parasite found in sheep and goat, it mainly damages liver of the host, by perforation of liver leading to sudden internal. Epidemiology of small ruminant fasciolosis in arid areas. The growth rate of the parasite, time of entry to the bile ducts, and time of patency are recorded and a preferential migration of the parasite in the liver parenchyma noted. Fascioliasis is a parasitic infection typically caused by fasciola hepatica, which is also known as the common liver fluke or the sheep liver fluke. Using a drug in any way other than that listed in the drug pamphlet is considered extralabel drug use and can only be done by veterinary prescription.
Fascioliasis is one of the water and food born zoonotic disease caused by fasciola hepatica, spread by various sources particularly containing water through various organisms ultimately to humans. Fasciolosis is a parasitic worm infection caused by the common liver fluke fasciola hepatica as well as by fasciola gigantica. Fluke infection is caused by two fasciola species, fasciola hepatica and f. The life cycle of fasciola gigantica is as follows. The adult fluke contains both male and female reproductive organs. Seroepidemiology of goat fascioliasis in district sargodha, punjab. Economically important infections are seen in cattle, sheep, alpacas, and llamas in three forms. If, for only a short time, the worry over parasites can be set aside in favor of a closer look at their life history, interesting, even mysterious discoveries can be learned. A total of 1070 serum and faecal samples were analyzed for igg1 antibodies and coproantigens, using elisa with es products as antigen and a monoclonal antibodybased sandwich elisa. Ppt goat and sheep diseases 1 powerpoint presentation. An ether sedimentation technique for routine stool. An illustrated guide to sheep and goat production page 5 goats prefer to browse, or eat things such as brush, leaves, and small trees. Liver fluke disease in sheep and cattle dr joseph c.
Habitata parasite of herbivorous anim als sheep,goat and cattle, living in. Fascioliasis is an infectious disease caused by fasciola parasites, which are flat worms referred to as liver flukes. Fasciola magna natural host are white tail deer, elk occurs across n. Eggs can survive for several years at very low temperatures in water. Two anthelmintic field trials were carried out with rafoxanide, oxyclozanide and hexachlorophene againstfasciola gigantica in naturally infected sheep. The present study determines the prevalence of fasciola hepatica in domestic animals cow, sheep and goat in district karak, khyber pakhtunkhwa, pakistan, from january through july, 20. Differentiation, fasciola hepatica,rapdpcr, sheep, cattle. Many mammals, including sheep, cattle, rodents, marsupials and humans, can act as definitive hosts. Goat recovered after administration of nitroxinil 20%. Table 2 lists the dewormers currently approved for use in sheep and goats and the parasites they are.
Fasciola hepatica, prevalence, goats, age, body weight, litter size. Small ruminant fasciolosis and its direct financial loss in dessie municipal abattoir north eastern ethiopia. Fasciola and paramphistomum infections in small ruminants. Fasciola hepatica bahiya basheer 2nd year mbbs student 2. Migratory tracts of fasciola hepatica, liver, sheep pipestem liver, fasciola hepatica, cow parenchymal, encapsulated, cavitated lesions, fascioloides magna, liver, caribou. Fasciolosis is an important and infectious disease of sheep and goats which is characterized by dullness, weakness, lack of appetite, pallor and edema of mucosa and death of animal. Boray former principal research scientist parasitology revised by dr gw hutchinson and stephen love march 2007 nationally, up to 40 million sheep and 6 million cattle graze pastures where liver fluke is endemic. The disease is a plantborne trematode zoonosis, and is classified as a neglected tropical disease ntd. Life ca passes its life cycle in two different hosts. Fasciola hepatica an overview sciencedirect topics. Fasciola infection affects both sheep and goats in yola modern abattoir nigeria. Differentiation of sheep and cattle isolates of fasciola.
This is the first molecular report for the diagnosis of fasciolosis in sheep and goats. Fasciola hepatica is an important parasite of sheep, goats and cattle that causes serious acute and chronic disease in various mammalian spe cies including. All sheep tested positive for fasciola hepatica were used in the study, with an overall collection and examination of 5 stool samples. In sheep, the migratory phase of the parasite produces severe parenchymal disease of the liver for which the parasite is called sheep liver fluke and the disease is known as liver rot. The first goat was necropsied 2 days after infection dai and the second goat 732 dai. Distribution of liver fluke disease in different climatic regions. Fasciola infection, modern abattoir, prevalence, small ruminants. Experimental infections of lambs with fasciola hepatica are described.
1104 1017 618 248 1545 966 1557 98 630 524 747 535 1120 1488 1398 1097 878 518 923 541 1302 619 1420 1682 346 643 482 5 75 1190 649 1125 336 147 1227 255 762 481 156 987 34 758 639