The pork industry is, in fact, the most significant meat producing industry with poultry in a distant—if still significant—second. Meat production—in terms of dead weight—is also highest for pork and poultry. The percentage share of pork and poultry are a much higher percentage of the total for meat than their share of turnover. So, in 2008, while pork and poultry represented 55 percent of the total turnover, the overall dead weight of pork and poultry represented 77 percent in
that share.
http://ec.europa.eu/enterprise/sectors/food/files/report_compmeat_en.pdf