Paragraph 13 Floors
On and after 1st January 2013, when concrete slatted floors are used for pigs kept in groups—
(a)
the maximum width of the openings between the slats must be—
(i)
11 mm for piglets;
(ii)
14 mm for weaners;
(iii)
18 mm for rearing pigs;
(iv)
20 mm for gilts after service and sows; and
(b)
the minimum width of the slats must be—
(i)
50 mm for piglets and weaners; and
(ii)
80 mm for rearing pigs, gilts after service and sows.