Cattle (maybe sheep too) additional growth sprite

[Sarge]

With a 10 irl day growth period, I currently maintan a spreadsheet for my breeding program as guidance of when I should expect a calf to become fully grown and it works fine, however:

Can we haz one or two additional sprites for calf growth stage(s)? This works great for trees and should work just as well for cattle... maybe one extra growth stage sprite for sheep too. Dunno about chickens, I've never bothered, maybe someone else can comment.