Table 1 General husbandry practices reported by the surveyed Swedish pig farms, divided by age group and farm size. The farms were divided based on herd size where sow holdings were classified as small if fewer than 100 sows, medium sized if 100–400 sows and large if more than 400 sows. Specialised fattening herds were classified as small, medium sized and large when annually producing < 5000, 5000–10,000 and > 10,000 pigs, respectively. Regarding total numbers, different letters (a-c) within a column indicate a statistical difference (p < 0.05) between age categories. Regarding herd sizes, different letters (d-e) within a row indicate a statistical difference (p < 0.05) between herd sizes. The differences were compared statistically using Chi-square tests. When numbers are written in italics, the distribution of the responses did not allow for chi-square analysis

From: Management practices related to the control of gastrointestinal parasites on Swedish pig farms