title: Effect of non target snails on some biological of Lymnaea natalensis snails and their infection to Fasciola gigantica.
abstract: The influence of non-target freshwater snails (Melanoides tuberculata and Planorbis planorbis) on the capacity of Fasciola egg production F. gigantica miracidia to infect Lymnaea natalensis and their effect on mortality and growth rates showed that the snails exhibited a competitive ability against L. natalensis. The mortality rate existed in mixed cultures with snails was greatly increased, and increased with increase of snails number. The egg production and growth rate were negatively affected by the presence of M. tuberculata and P. planorbis which was more pronounced when snails were at higher ratio lL: 10D. Also, the snails showed significant degree of reduction in infection rate of L. natalensis with F. gigantica miracidia.
authors.affiliation: Department of Medical Malacology, Theodor Bilharz Research Institute, P.O. Box 30 Imbaba, Egypt. Fayezbakery@yahoo.com
authors.forename: Fayez A
authors.initials: FA
authors.lastname: Bakry
authors.forename: Salwa A H
authors.initials: SA
authors.lastname: Hamdi
mesh_terms: D000818:Animals; D004199:Disease Vectors; D005209:Fasciola / Q000254:growth & development*; D005211:Fascioliasis / Q000517:prevention & control / Q000635:transmission; D006790:Host-Parasite Interactions / Q000187:drug effects; D006801:Humans; D008195:Lymnaea / Q000187:drug effects / Q000254:growth & development / Q000469:parasitology*; D008975:Molluscacides / Q000494:pharmacology*; D010270:Parasite Egg Count; D012908:Snails / Q000187:drug effects* / Q000254:growth & development; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D008975:Molluscacides