| prevalence of dogs with intestinal parasites in tochigi, japan in 1979, 1991 and 2002. | a total of 772 canine fecal specimens were collected in tochigi in 1979, 1991 and 2001. the frequency of dogs that were kept indoor in 2002 (72.8%) was significantly higher than that for 1979 (21.2%, p < 0.001) and 1991 (40.6%, p < 0.01). the frequency of parasitized dogs in 2002 (18.8%) was significantly lower than that for 1979 (41.9%, p < 0.01). the findings of this study confirm the declining trend in japan in the prevalence of helminth parasites in dogs, particularly ancylostoma caninum and ... | 2004 | 15041099 |