RT info:eu-repo/semantics/article T1 The Suinfort® Semen Supplement Counters Seasonal Infertility in Iberian Sows A1 Piñán Miguel, José Javier A1 Martínez Pastor, Felipe A1 Alegre Gutiérrez, Beatriz A1 Maj, Magdalena A1 Kirkwood, Roy N. A1 Domínguez Fernández de Tejerina, Juan Carlos A1 Manjarín Arredondo, Rodrigo A2 Sanidad Animal K1 Sanidad animal K1 Iberian pig K1 Sow K1 Artificial insemination K1 Suinfort® K1 Seasonal infertility K1 3109 Ciencias Veterinarias AB [EN] Suinfort®, a commercial semen supplement demonstrated to increase fertility and litter size in commercial sows, was tested to improve reproductive performance in Iberian sows. A total of 1430 Iberian sows were artificially inseminated (AI) with semen from Duroc boars and assigned by parity to receive the seminal additive Suinfort® containing 2 IU oxytocin, 5 µg lecirelin, and 2 mM caffeine (SF; n = 1713 AI), or to serve as non-supplemented controls (CON; n = 2625 AI). CON showed a lower fertility comparing to winter for spring (p = 0.001) and summer (p < 0.001); summer was lower than autumn (p = 0.012). SF removed this seasonal effect (p > 0.05). Fertility was significantly higher for SF sows during summer (p = 0.025) and autumn (p = 0.004). Total born, live-born, stillborn, and mummified piglets did not differ between CON and SF but were impacted by the season, with total and live-born decreasing in summer compared with autumn (p < 0.001) and winter (p = 0.005). In conclusion, seminal supplementation with Suinfort® improved the fertility of Iberian sows during periods of seasonal infertility PB MDPI LK https://hdl.handle.net/10612/18538 UL https://hdl.handle.net/10612/18538 NO Piñán, J., Martinez-Pastor, F., Alegre, B., Maj, M., Kirkwood, R. N., Domínguez, J. C., & Manjarín, R. (2021). The suinfort® semen supplement counters seasonal infertility in iberian sows. Animals, 11(11). https://doi.org/10.3390/ANI11113176 DS BULERIA. Repositorio Institucional de la Universidad de León RD Jul 6, 2024