RT Journal Article T1 A combined effort to avoid strongyle infection in horses in an oceanic climate region: rotational grazing and parasiticidal fungi A1 Hernández Malagón, José Ángel A1 Sánchez-Andrade Fernández, Rita A1 Cazapal Monteiro, Cristiana Filipa A1 Arroyo, Fabián Leonardo A1 Sanchís, Jaime Manuel A1 Paz Silva, Adolfo A1 Arias Vázquez, María Sol K1 Horses K1 Strongyles K1 Rotational pasturing K1 Pelleted feed K1 Integrated control K1 Duddingtonia flagrans K1 Mucor circinelloides AB Background: An approach to preventing strongyle infection in horses was tested, comprising rotational pasturing and the administration of spores of two parasiticidal fungi, Mucor circinelloides and Duddingtonia flagrans.Methods: Twenty-two adult Spanish Sport Horses were dewormed with ivermectin (1 mg pour-on/kg body weight) and then randomly divided into three groups. G-1 was maintained with continuous grazing, and G-2 and G-3 were kept on a four-paddock rotation system. Commercial pelleted feed (2.5 kg/horse) was supplied to G-1 and G-2 twice a week; horses in G-3 received pellets containing 2 x 10(6) spores/kg of each fungus. Fecal samples were analyzed by the flotation method to estimate the reduction in the fecal egg counts (FECR), the percentage of horses shedding eggs (PHR), and the egg reappearance period (ERP).Results: Third-stage larvae were identified in fecal pats as Cyathostomum (sensu lato) types A, C and D, Gyalocephalus capitatus, Triodontophorus serratus, Poteriosthomum spp., Strongylus vulgaris and S. edentatus. Two weeks after treatment, the FECR values were 100% in G-1, 96% in G-2 and 99% in G-3; the PHR values were 100% in G-1, 75% in G-2 and 88% in G-3. A strongyle ERP of 6 weeks was observed in G-1, ERP of 10 weeks was observed in G-2, and ERP of 16 weeks was observed in G-3. The counts of eggs per gram of feces (EPG) were > 300 EPG in G-1 and G-2 but remained below 250 EPG in G-3 throughout the observation period of 12 months.Conclusions: These results suggest that horse strongyle infection could be decreased by combining rotational pasturing with feeding pellets containing the spores of parasiticidal fungi. PB BMC SN 1756-3305 YR 2018 FD 2018-12-28 LK https://hdl.handle.net/10347/38909 UL https://hdl.handle.net/10347/38909 LA eng DS Minerva RD 23 abr 2026