Yes, this is extremely common. The gestation period for a rabbit is 28-31 days.
A rabbit typically gives birth to babies every 30 days.
about 30 days.
It takes 28 to 31 days for ALL rabbits to have babies. The day you breed your day is not the first day. Start counting the next day. I have found that they are pretty much day 30 right on target.
About a month. So 30 days
It about 30 days.
Rebreed her and wait 30 days.
Count 30 days from when she was mated. About 2 days before she has her babies she should start to build a nest, this is another indicator!
Rabbits can have babies every 30 days, but factors like age, health, and environment can affect their reproductive frequency.
A female domestic rabbit CAN have babies every 30 days. They will rebreed the same day they deliver IF exposed to a buck. (I wouldn't recommend it) You are shortening the life of the rabbit and endangering the well being of the litter she is carrying as well as the well being of the litter she has just delivered.
A tipical rabbit can produce up to 20 babies they are only peagnent for 30 days so 15 bunnies a month for you but it depends on the kind.
As often as they are bred. It takes approx. 30 days to have babies and a doe CAN be rebred the same day she kindles. (This is not a good practice besides having tons of babies it will shorten the life of your doe.) A more realistic breeding program is breed doe, kindle in 30 days, start weaning babies at 6 weeks, rebreed doe between 7th and 8th week. Wean all babies by 8th week and the doe will have babies again 30 days from the day you bred her.
You give no indication of the life span of the flies - do they die after producing 20 offspring in 1 day, or do they keep on producing flies until the end of the month. Nor do you specify how many days are in the month. Assuming an average month of 30 days (since the year has an average of approx 30.44 days per month), then: Assuming no fly dies and keeps on producing 20 every day, then: After day 1: 1 adult + 20 babies After day 2: 21 adult + 420 babies After day 3: 441 adult + 8820 babies And so on After 30 days there are approx 4.1967×10³⁹ babies Assuming the flies die after producing the babies, then: After day 1: 20 babies After day 2: 400 babies After day 3: 8000 babies and so on After 30 days there are approx 1.0737 × 10³⁹ babies