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The incidence of lameness during the first four weeks of life in piglets in four experimental groups. Rectangle represents Group I – control, triangle represents Group II – with doubled chopped straw, circle represents Group III – Piglet Floor®, and rhomb represents Group IV – Thorocrete SL® (* = p < 0.05; ** = p < 0.0; significant differences in relation to the prevalence for the Group I – control).
