We work together http://xhamsterpics.site/gia-vendetti-planetsuzy/ xnxxxbom Pratt Feeders' Bohn said Zilmax costs roughly $20 per head, while Optaflexx runs $8 to $10. He found that Zilmax adds about $15 to $30 in revenue per animal versus $10 to $12 for Optaflexx, because Zilmax puts more meat on the carcass.