How many dogs are born each day?
All I known is 70,000 kittens an dogs are born each day while 10,000 humans are born each day.
There is no accurate answer to that question as there is no accurate data available. There is no way to keep track of every dog birth.
There are no records showing the number of dog births in a day but today, the pet dog population is over 67 million in US. The Number of puppies per litter are 6 to 12 for a medium or large breeds and 4 to 8 for smaller breeds. You can find more information here http://www.petfoodinstitute.org/Index.cfm?Page=USCatandDogPopulation.