Block 1 Flashcards
(25 cards)
Fasciola hepatic
Bile ducts of liver
Live fluke
DH: Cattle, sheep, goats, ruminants, humans
IH: Snails
Trematoda are Hermaphrodite
Two testes and one ovary
Oral suckers surrounds the mouth esophagus to a pair or blind ceca
Ventral Suckers surounds the genital pore)
Order Digenean
Show high specificity to their IH but more broad range of a DH
Sexual and Asexual generation
Fasciola Hepatic Life Cycle
- Eggs that fall int water will develop into miracidium and hatch
- Miracidium enters the IH of snail
- Miracidium migrates to the gonad or digestive gland to form a sporocyst
- Rediae into the tissue of the snail
- Rediae to cercaria
- Ceraria leaves the snail to swim in the water
- METACERCARIA infective to sheep
- 3-4 months
Facioloides magna
White tailed deer are parasites of the liver and bile ducts
Fasciolopsis bucski
Parasite of the small intestine of pigs and humans
Fascioloa Diagnosis
Sedimentation technique
Acute liver fluke disease
invasion of the liver by metacercariae
Clostridium novyi to mult. and damage tissue
Fasciola Treatment and Control
Snail Control, clorsulon and albendazole
Paramphistomum, Calicophoron sp, and Cotylophoran
Rumen Flukes liver flukes (diseases occurs during the migration)
Gastrodiscoides hominis
human monekey and apes liver flukes
Megalodiscus
Frogs liver flukes
Troglotrematidae
Treatment
Prauired by eating fish, crayfish, and crab
Praziquantel, Fenbendazle and Albendazole
Nanophyetus salmincola (PFA)
intestines (salmon poisoning in dogs)
IH: Snails
Cercariae penetrate skin of salmonid fish
DH infected by eating fish
Neorickettsia helminthoeca (PFA)
worm hose of salmon poisioning in dogs
Paragonimus kellicotti (PFA)
encysts in crayfish serve as the IH
Paragonimus kellicotti (PFA)
Brown operculated eggs causes respiratory disease
Heterophyidae (PFA)
Ventral sucker and genital pore in ventrogenital sac
Gonotyls
Muscular suckers surrounding the genital pore
Heterophyes heterophyes
Ventral suckers in cats and dogs
Cryptocotyle libgua
Ventral suckers in dogs and causes black spot disease
Metrochis conjuctus
North America liver fluke
Opisthorchis spp.,
Pancreatic ducts and small intestines of dogs, cats, foxes
IH: Bithynia tentaculata
Encyst a crab
Dicrocoeliidae
Trematodes acquired by eating Arthropods or vertebrates paratenic hosts (ANTS get snail slime)
