Why Large White breed darling for pig farmers

The Large White as the name suggests is a large breed. 

Dear Daktari, Thank you for such an informative column. I like how you break down issues. I am planning to venture into pig production purely with an intention of being a supplier to sausage production companies. I have already put up the structures and is shopping around for a good breed. Many of the pig farmers that I have visited are keeping Large White breed. Is there something special about this breed? Does the market prefer pork from this breed? I will greatly appreciate more information on this breed.

[Pius Wekesa, Ngong]