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Despite their importance, epidemiological data regarding the presence and egg-shedding intensities of these parasites are scarce. Data from 1067 horse samples collected on German horse farms initially to compare diagnostic methods were used for epidemiological analyses. Due to its higher sensitivity, presence\/absence data were based on a combined sedimentation\/flotation technique while faecal egg counts were based on Mini-FLOTAC. For strongyles, 46.5% of the samples were positive and the median egg-shedding intensity was 40 (range 5\u20132590). In multivariate analyses, prevalence and egg-shedding intensity were significantly influenced by season, age group and sample type. The drug used for the last treatment and the number of foals on the yard only affected prevalence while the number of horses on the yard and sex were only significant for egg-shedding intensity. For\n                    <jats:italic>Parascaris<\/jats:italic>\n                    spp., a prevalence of 4.6% and a median egg-shedding intensity of 0 (range 5\u2013905) were observed. In multivariate analyses, the age group, the time since the last anthelmintic treatment, presence and number of foals had significant effects on ascarid prevalence whereas egg-shedding intensity was significantly influenced by age group and season only.\n                    <jats:italic>Parascaris<\/jats:italic>\n                    occurred only on yards with foals, but with an increasing number of foals,\n                    <jats:italic>Parascaris<\/jats:italic>\n                    egg-shedding intensity decreased. Prevalence and egg-shedding intensity were influenced by different but partially overlapping variables for\n                    <jats:italic>Parascaris<\/jats:italic>\n                    and strongyles.\n                  <\/jats:p>","DOI":"10.1007\/s00436-022-07765-4","type":"journal-article","created":{"date-parts":[[2023,1,10]],"date-time":"2023-01-10T22:02:46Z","timestamp":1673388166000},"page":"749-767","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Epidemiological study on factors influencing the occurrence of helminth eggs in horses in Germany based on sent-in diagnostic samples"],"prefix":"10.1007","volume":"122","author":[{"given":"Heike","family":"Boelow","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00fcrgen","family":"Kr\u00fccken","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georg","family":"von Samson-Himmelstjerna","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,1,11]]},"reference":[{"key":"7765_CR1","doi-asserted-by":"publisher","first-page":"597","DOI":"10.1186\/s13071-021-05103-8","volume":"14","author":"G Abbas","year":"2021","unstructured":"Abbas G, Ghafar A, Hurley J, Bauquier J, Beasley A, Wilkes EJA, Jacobson C, El-Hage C, Cudmore L, Carrigan P, Tennent-Brown B, Gauci CG, Nielsen MK, Hughes KJ, Beveridge I, Jabbar A (2021) Cyathostomin resistance to moxidectin and combinations of anthelmintics in Australian horses. 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