How many ant eggs are normally in a queen's brood?

Well if you mean her starting brood that she births shortly after finding a location for her colony then they can range wildly based on species some will only lay 3 or 4 others will lay a lot more. read more

Because the queen is the only one that is fertile. She is the only female that mates, and therefore the only one that lays eggs (in most species) Workers, the sterile wingless females, are incapable of engaging in a nuptial flight to mate with the drones. The queen controls the sex of her offspring. read more

The first eggs have to be cared for by the queen working by herself, so the first ants will be minims which are smaller than ants produced later in the colony’s life. If the eggs produce healthy ants you should be okay. read more

In a colony some ants may be unrelated to the queen(s), such as when a brood is captured in a raid and raised as the colony's own. Reproduction. Once the colony has established itself, the queen ant will lay eggs continuously. read more