000162950 001__ 162950
000162950 005__ 20251017144637.0
000162950 0247_ $$2doi$$a10.1016/j.vas.2025.100505
000162950 0248_ $$2sideral$$a145435
000162950 037__ $$aART-2025-145435
000162950 041__ $$aeng
000162950 100__ $$0(orcid)0000-0001-6964-7011$$aFalceto, María Victoria$$uUniversidad de Zaragoza
000162950 245__ $$aRole of triptorelin and single fixed-time artificial insemination on productive and reproductive performance of hyperprolific sows
000162950 260__ $$c2025
000162950 5060_ $$aAccess copy available to the general public$$fUnrestricted
000162950 5203_ $$aSingle fixed-time artificial insemination (SFTAI) provides a streamlined approach to improving reproductive management. We evaluated the impact of incorporating triptorelin acetate (GnRH agonist) into a SFTAI protocol on a commercial farm. Hyperprolific sows not in estrus by day 4 post-weaning were randomly assigned to two groups. Group-1 (G1; n = 243) received no triptorelin treatment and daily post-cervical artificial inseminations (PCAI) based on estrus detection (2.59±0.034 inseminations/sow). Group-2 (G2; n = 249) received a single intravaginal dose of triptorelin (0.2 mg) at 96 ± 2 h post-weaning, then one PCAI 22 ± 2 h later. No significant differences (P > 0.05) between groups in conception rate (G1: 98.8 %; G2: 97.6 %), farrowing rate (G1:95.1 %; G2: 94.4 %) or litter characteristics (total born, live-, stillborn and mummified piglets). Both groups showed similar delivery batch durations (P = 0.414). Distribution of deliveries during the delivery period was similar (P = 0.455). Induction of labor was need more frequently in G1 (P < 0.001). G2 had a higher proportion of sows with shorter gestations (112–115 days: 166/235, 70.6 %) compared to G1 (112–115 days: 82/231; 35.5 %, P < 0.001). A significantly higher proportion of G2 piglets received longer lactation (27 - 33 days) compared to G1 (2210/3023=73.1 % vs 2774/4395=63.1 %; P = 0.032). G1 had a higher proportion of low-weight piglets (≤4.0 kg; 716/43950= 16.3 % vs.435/3023= 14.4 %; while G2 had more heavy piglets (≥6.5 kg; 1228/3023=40.5 % vs.1675/4395= 38.1 %) (P = 0.027). Observed differences in lactation length could be responsible for these weaning weight differences, rather than triptorelin treatment itself. This protocol did not worsen productive and reproductive performances.
000162950 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000162950 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000162950 700__ $$aReyero, David
000162950 700__ $$0(orcid)0000-0001-5026-5144$$aTejedor, María Teresa$$uUniversidad de Zaragoza
000162950 700__ $$aRenaud, Paul
000162950 700__ $$aMateu, Ana
000162950 700__ $$aLafuente, Antonio
000162950 700__ $$0(orcid)0000-0001-6178-9891$$aBonastre, Cristina$$uUniversidad de Zaragoza
000162950 700__ $$0(orcid)0000-0003-0296-1617$$aLaborda, Alicia$$uUniversidad de Zaragoza
000162950 700__ $$aGarrido, Ana Maria$$uUniversidad de Zaragoza
000162950 700__ $$0(orcid)0000-0001-9907-2941$$aMitjana, Olga$$uUniversidad de Zaragoza
000162950 7102_ $$11001$$2420$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Genética
000162950 7102_ $$11009$$2617$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Medicina y Cirugía Animal
000162950 773__ $$g30 (2025), 100505 [10 pp.]$$tVeterinary and Animal Science$$x2451-943X
000162950 8564_ $$s2083640$$uhttps://zaguan.unizar.es/record/162950/files/texto_completo.pdf$$yVersión publicada
000162950 8564_ $$s2147328$$uhttps://zaguan.unizar.es/record/162950/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000162950 909CO $$ooai:zaguan.unizar.es:162950$$particulos$$pdriver
000162950 951__ $$a2025-10-17-14:30:05
000162950 980__ $$aARTICLE