Don't about the time, thing about the bloodlines you are going to use.
8 months old
None. Millions of pit bulls are killed in shelters every year. Don't contribute to the problem of so many unwanted puppies.
Spring time is mating time for rabbits, so around spring or summer.
It depends upon the species. Most breed in the spring and summer. In warm climates, they will breed through the fall. Some species won't breed in the hottest time of the year while other species won't breed in the coldest time of the year.
A Staffordshire Bull Terrier wins Best of Breed every year. Best of Breed is the Best dog from each breed, so there will always be one from the Staffy breed. This year (2011) a red Staffordshire Bull Terrier came third in Best in Group but a Staffy has never won Best in Show.
around January to April
summer
They breed all year long.
September-October
one
Foxes generally breed in the winter and the young are born in the spring.
The best time of year to start rabbit breeding season is typically in the spring, when the weather is warmer and there is more daylight. This allows for optimal conditions for the rabbits to breed and for the offspring to grow and thrive.