However,
sexually intact female dogs were found to be at increased risk.
Estrogens would be expected to have a similar protective role in
sexually intact female dogs; unfortunately, too few
sexually intact female dogs were available for inclusion in the study to test this hypothesis.
Not exact matches
The disease rates for all five diseases were significantly higher in both males and
females that were neutered either early or late, compared with that of
sexually intact dogs.
In
sexually intact dogs, 8.5 %
females were in season, and 16.5 % of males had a bitch in season nearby during the week prior to the GDV.
«Male and
female dogs that underwent gonadectomy before 1 year of age had an approximate one in four lifetime risk for bone sarcoma and were significantly more likely to develop bone sarcoma than
dogs that were
sexually intact.»
Male and
female pups from 5 litters were randomly allotted to 3 groups: group I, neuter at 7 weeks (n = 14); group II, neuter at 7 months (n = 8); and group III,
sexually intact dogs (n = 10).
However, in this cohort, there was no statistically significant difference in the overall cancer incidence rate in male or
female dogs that underwent early gonadectomy before 1 year of age compared with
sexually intact dogs (data not shown).
Gonadectomized
female and male
dogs lived longer than
sexually intact dogs in this cohort (Table 1) ⇓ and in a previous study (32), which might be expected to contribute to a higher overall cancer incidence associated with gonadectomy.
The reproductive history of 275
female dogs that were
sexually intact after 1 year of age was obtained by telephone interview of owners (Table 5) ⇓.
There were 400
sexually intact males, 222 neutered males, 451
sexually intact females, 351 spayed
females, and 17
dogs for which sex was not reported.