Abstract
The possibility that the bile duct tapeworm, Vampirolepis straminea, affects reproduction in house mice was tested by comparing breeding in infected and uninfected control mice maintained under standard laboratory conditions. V. straminea infection resulted in a significant delay between first and second litters but there was no significant difference between the number of litters or the total number of offspring produced by infected and control mice. The results suggest that V. Straminea is probably not suitable as a biological control agent for house mice.