ABSTRACT
Experiments were conducted to study the host-parasite compatibility of various isolates of Biomphalaria glabrata snail and Schistosoma mansoni parasite isolates. A series of experiments conducted on 12 S. mansoni isolates have shown a range of infectivity potential for B. glabrata snail and 9 isolates of B. glabrata were found differentially susceptible to infection with S. mansoni trematode parasite.
Subject(s)
Biomphalaria/parasitology , Host-Parasite Interactions/physiology , Schistosoma mansoni/pathogenicity , Animals , Biomphalaria/genetics , Genetic Predisposition to Disease , Schistosoma mansoni/isolation & purificationABSTRACT
One hundred dogs and equal number of cats was examined in Tandojam town and its surroundings, with an object to record the flea infestation in these hosts. During this study, only one species of flea, i.e., Ctenocephalides felis was founding infesting both host animals. Pooled compilation of data revealed that 34% of dogs and 28% cats were infested. However, categorical compilation of results showed that in case of dogs, the higher rate of infestation (50%) was recorded in females than in males (10%). Similar trend was also found in cats, where 25% females were found infested as against 11.11% in males. The trend of female bias infestation was also observed down to the level of young population of animals under study. The rate of infestation was higher in female puppies (40%) than in male puppies (26.66%). It was also higher in female kitten (37.84%) than in male kitten (12.43%).
Subject(s)
Cat Diseases/epidemiology , Dog Diseases/epidemiology , Ectoparasitic Infestations/veterinary , Siphonaptera , Animals , Cats , Dogs , Ectoparasitic Infestations/epidemiology , Female , Humans , Iran/epidemiology , MaleABSTRACT
This study was conducted to screen different snail species to determine their susceptibility for different parasitic infections and also to determine LC50 and LC90 values. The screening of snail species infected with Schistosome parasite and mean number of cercariae shed by individual infected snail was 184+12. The experiment on relationship of snail size and dose of Niclosamide showed that juvenile snails were more susceptible to chemical when compared with adult snails. A series of seven experiments indicated that concentration of 0.067 and 0.109 mg L(-1) were required to kill 50 and 90% snails, respectively in an exposure period of 24 h and no death occurred in recovery period.
Subject(s)
Molluscacides/pharmacology , Niclosamide/pharmacology , Schistosoma mansoni/drug effects , Schistosomiasis mansoni/transmission , Snails/parasitology , Animals , Disease Vectors , Host-Parasite Interactions , Schistosoma mansoni/metabolismABSTRACT
A comparative study on the prevalence of Anaplasma parasite was conducted on ticks carrying buffaloes and cattle. Five hundred blood samples of both animals (250 of each) were collected during February, March and April. Thin blood smears on glass slides were made, fixed in 100% methyl alcohol and examined. Microscopic examination revealed that 205 (41%) animals had Anaplasma parasites, out of which 89, 44 and 72 animals had Anaplasma marginale, Anaplasma centrale and mixed infection respectively. Infected buffaloes and cattle were 75 and 130 respectively. The infection in female was 53 and 92 in buffaloes and cattle respectively. Twenty-two and 92 blood samples of male were found positive in buffaloes and cattle respectively. Comparative study revealed that the cattle were 26.82% more susceptible than buffaloes. The parasite prevailing percentage in female of both animals was slightly higher than that of the male. This investigation was aimed at studying the comparative prevalence of Anaplasma parasite in tick carrying buffaloes and cattle.
