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Written by Admin
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Thursday, 24 November 2005 |
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Page 9 of 11
A general rule of thumb is that a mammal will produce half as many offspring as
the number of teats on the mother. This rule is altered in domesticated animals
since larger litters are often favoured for economic reasons. Dogs bear their
litters roughly 9 weeks after fertilization. An average litter consists of about
six puppies, though this number may vary wildly based on the breed of dog. Since
a mother can only provide nutrients and care to a limited number of offspring,
humans must assist in the care and feeding when the litter exceeds approximately
eight puppies. Some breeds have been developed to emphasize certain physical
traits beyond the point at which they can safely bear litters on their own. For
example, the Bulldog often requires artificial insemination and almost always
requires cesarean section for giving birth.
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About Dogs 
