One Two Three Little Piglets!...What's sweeter than baby pigs? Miniature baby pigs!... Mini Juliana pigs are usually spotted and come in a variety of colors. These babies will eventually weigh between 20-50 pounds on a diet of fruits, vegetables, grains, bugs, worms, and grow to be about 2 feet in length. This breed can live to be between 15 and 20 years old.