Concerns about young goats size

[YourRabbitGirl]

Hello all. I purchased two Boer/ Alpine X doelings last fall, born 06.30.2019.
They are each roughly 35#. I have had some herders same they felt these are small for age and possibly had early illness or something to stunt growth. Others with doelings within 5# of similar breed. Looking for opinions on size, and is there a way to move the size along, not for meat but for breeding purposes?

There are two sizes of goats, miniature and standard breeds. ... Mini-goats, such as Pygmy and Nigerian dwarfs, appear to be more common in urban areas due to the many local limits on the size and weight of the goat (the smaller breeds appear to weigh 100 lbs. or less).