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  • Title: [Toxocara canis: frequency of detection and extent of infection in bitches of various breeds and husbandry and their litters in South Germany].
    Author: Gothe R, Reichler I.
    Journal: Tierarztl Prax; 1990 Jun; 18(3):293-300. PubMed ID: 2377994.
    Abstract:
    Epidemiological investigations of 100 randomly selected dog families in Southern Germany revealed eggs of Toxocara canis in 67% of the litters and in 45% of the bitches. Eggs were isolated from litters at the earliest on the 16th day and at the latest on the 55th day post partum, in bitches on the 19th and 60th day respectively after giving birth. With regard to the coproscopically detected frequency of T. canis eggs in separate analyses of the dog breeds, only slight differences were found; very large breeds, however, revealed substantially a greater excretion extent. An evaluation exclusively concerned with the way the dog families were kept showed a higher percentage of 76.2% for litters from kennels than among those kept indoors, which amounted only to 51.4%. Relating the excretion extent to the number of additionally kept fully grown dogs/breeder, evident correlations were found, as the number of positive litters increased together with the number of additionally kept adult dogs/dog family. In comparison with dog families exclusively kept indoors, kennel dogs had a higher extent of excretion. Regarding the number of litters born per year/stock compared with excretion extent a positive correlation could be drawn for dog families up to 5 litters/year only. The number of litters born per bitch had no influence on the excretion extent of the litters. Correlations between the number of anthelminthic treatments of litters or bitches during and following pregnancy and the excretion extent of T. canis could not be deduced. The litters remained positive even after 5-8 treatments during the investigation period of 9 weeks and positive results continued after the puppies had been sold.(ABSTRACT TRUNCATED AT 250 WORDS)
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