Fig. 1From: Production parameters and pig production cost: temporal evolution 2010–2014Temporal evolution of number of piglets born alive (a), preweaning mortality (b), number of piglets weaned by sow (c) and number of piglets produced by sow and year (d) during piglet production phase from 2010 to 2014 in Spain. Values with different superscripts differ significantly between years at P < 0.05Back to article page