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LONG TERM EFFECT OF PMSG ON RABBIT DOES REPRODUCTIVE PERFORMANCE

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LONG TERM EFFECT OF PMSG ON RABBIT DOES REPRODUCTIVE PERFORMANCE

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dc.contributor.author Boiti, C.
dc.contributor.author Castellini, C.
dc.contributor.author Canali, C.
dc.contributor.author Zampini, D.
dc.contributor.author Monaci, M.
dc.date.accessioned 2011-03-22T08:30:44Z
dc.date.available 2011-03-22T08:30:44Z
dc.date.issued 1995
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/10511
dc.description.abstract [EN] This study was carried out to verify the long term effect of Pregnant Mare Serum Gonadotrophin (PMSG¡ treatments (20 IU three days before the induction of ovulation with GnRH) on the fertility and ovarian response of does artificially inseminated for at least 7 cycles. Twenty-five nulliparous does were submitted to recurring treatments at fixed intervals of 45 days. A total of 175 artificial inseminations were performed. The results confirmed previous observations about the progressive loss of efficacy of the PMSG in inducing pregnancy (from 80.9 to 60.9 %), above ali in does classified as hyper-immune (84 % of animals). The lactation stage negatively influenced the reproductive performance especially in does at the first two treatments (fertilitv rate 53.9 vs 79.2 % ; litter size 7.5 vs 8.8; P:o;0.05). These hormonal treatments altered the follicular growth causing a significantly higher number of haemmoragic follicles (1.7 vs 4.9) and also affected the quality of collected embryos (O degenerated embryos vs 4.9). es_ES
dc.description.abstract [FR] Cette étude a pour but de vérifier l'effet a long terme des traitements par PMSG {20 Uf trois jours avant finduction de l'ovulation par GnRH) sur la fertilite et la réponse ovarienne des tapines artificiellement inséminées pendant au moins 7 cycles. Vingt cinq tapines nullipares ont été soumises a des traitements renouvelés systématiguement tous les 45 jours. Au total 175 inséminations ont eté réalisées. Les résultats confirment les observations précédentes concernant une perte progressive de l'efficacité de PMSG a induire la gestation {de 80,9 % a 60,9 %) surtout pour les tapines classées hyper-immunes (84 % des animaux). La persistence de la lactation inf/uence négativement les performances de reproduction particulierement pour tes tapines soumises aux deux premiers traitements (taux de fecondité 53,9 vs 79,2 % ; taille de la portée 7,5 vs 8,8 ; P:'>0.05). Ces traitements hormonaux alterent la croissance fo//iculaire provoguant un nombre significativement plus élevé d'hémorragies (1,7 vs 4,9) et affectent la qualité des embryons récoltés {de o a 4,9 embryons dégénéres).
dc.description.sponsorship This research was supported by a grant from MURST 40%
dc.language Inglés es_ES
dc.publisher World Rabbit Science. ICTA. UPV es_ES
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.title LONG TERM EFFECT OF PMSG ON RABBIT DOES REPRODUCTIVE PERFORMANCE es_ES
dc.type Artículo es_ES
dc.date.updated 2011-03-22T08:24:17Z
dc.identifier.doi 10.4995/wrs.1995.240
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Boiti, C.; Castellini, C.; Canali, C.; Zampini, D.; Monaci, M. (1995). LONG TERM EFFECT OF PMSG ON RABBIT DOES REPRODUCTIVE PERFORMANCE. World Rabbit Science. 3(2):51-56. https://doi.org/10.4995/wrs.1995.240 es_ES
dc.description.accrualMethod SWORD es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.1995.240
dc.description.upvformatpinicio 51
dc.description.upvformatpfin 56
dc.description.volume 3
dc.description.issue 2
dc.identifier.eissn 1989-8886 es_ES
dc.contributor.funder Ministero dell'università e della ricerca scientifica e tecnologica, Italia


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