size of mini nubians

[treeclimber233]

I have 2 F1 mini Nubian bucks. I think they are smaller than they should be. Definitely smaller than I was expecting. They are 5 months old and barely up to my knees. They are smaller than my 3 year old Nigerian/pygmy doe. My Nigerian/ pygmy doe has a buck that is slightly older than the other two and he is considerably larger. All the babies have the same Nigerian father. Can anyone tell me how big my bucks should be? I bought a mini mancha buck that was considerably larger than these guys seem to be getting. Is this the normal size for them????

 

[Egg_Newton]

I have a 3 month old mini nubian bucking (F4 or 5 can't remember right now). He is just a little bigger than my 9 month old ND buck. They may just have inherited more ND than Nubian.