Fate of the benzoylphenyl urea CGA-184699 in the cat flea Ctenocephalides felis
1992
Zakson, M. | Hink, W.F. | MacKichan, J.J.
HPLC was used to determine levels of the benzoylphenyl urea. CGA-184699, cat blood, flea faeces and eggs. Rate constants were determined for the decline of CGA-184699 concentration in flea faeces of fleas that fed on both high (696 ng ml-1) and low (305 ng ml-1) host blood concentrations. There were strong correlations between the concentration of the drug in the host's blood and in flea eggs, between egg concentration and egg hatch and between the concentration of CGA-184699 in faeces and mortality to larvae feeding upon faeces.
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