I would say once a year!
A Piranha can breed up to 200 times a year
they breed 1 million times a year
Rabbits can breed multiple times throughout the year, with some breeds able to breed every 30 days.
once
Only once.
a buck can breed about once a day and a doe shoud only be breed about once a year
Like most animals - they breed once a year - usually in the spring.
It depends on what kind of fish they are; tropical fish will reproduce many times in a year, whereas many temperate species will only do so once a year.
Starlings typically reach sexual maturity at around one year of age, at which point they can begin to mate. However, they may not successfully breed until they are a bit older, often around two years, when they have more experience and better physical condition. In the wild, starlings can live for several years, allowing for multiple breeding seasons throughout their lives.
Pigs can breed multiple times a year. Sows can have multiple litters in a year, with an average gestation period of around 3 months, 3 weeks, and 3 days. They can typically produce 2-3 litters per year.
Deer breed one time a year and they only give birth one time a year!
Snakehead fish (Channa sp) are reputed to breed as many as 5 times a year provided the conditions are right for them.