Hatcheries that vaccinate in ovo, or through the egg?

[hunthaven]

I've read that the most effective Marek's vaccines are given with a double needle while the chick is still in the egg. Does anyone know which hatcheries vaccinate this way? Anyone? Bueller?

http://www.thepoultrysite.com/artic...lneedle-inovo-vaccination-for-mareks-disease/

 

[hunthaven]

I just found out that Vikon Farms does this, but they seem to be a commercial poultry operation. http://www.thepoultrysite.com/articles/2963/in-ovo-for-smaller-hatcheries/. ).

Anyone know of any others?