Effects of melatonin treatment on follicular development and oocyte quality in Chios ewes - Short communication
dc.creator | Tsiligianni, T. | en |
dc.creator | Valasi, I. | en |
dc.creator | Cseh, S. | en |
dc.creator | Vainas, E. | en |
dc.creator | Faigl, V. | en |
dc.creator | Samartzi, F. | en |
dc.creator | Papanikolaou, T. | en |
dc.creator | Dovolou, E. | en |
dc.creator | Amiridis, G. | en |
dc.date.accessioned | 2015-11-23T10:51:41Z | |
dc.date.available | 2015-11-23T10:51:41Z | |
dc.date.issued | 2009 | |
dc.identifier | 10.1556/AVet.57.2009.2.13 | |
dc.identifier.issn | 2366290 | |
dc.identifier.uri | http://hdl.handle.net/11615/33943 | |
dc.description.abstract | Follicular development and oocyte quality were assessed by laparoscopic observation and in vitro fertilisation, respectively, in melatonin-treated (Group M) and control (Group C) anoestrous Chios ewes (n = 10 in each group). Fourteen days after melatonin insertion, all ewes had laparoscopic evaluation of the follicular population followed by oocyte pick-up (OPU); on day 22 intravaginal progestagen sponges were inserted for 14 days. Two days after sponge removal the follicular population was re-evaluated and a second follicular aspiration was performed. Collected oocytes from the second OPU underwent in vitro maturation, fertilisation and culture. The number of large follicles was higher in Group M than in the control ewes during the first OPU and tended to be so (P = 0.06) at the second. Morphologically, oocytes collected from controls were of better quality than those from Group M; however, more oocytes collected from melatonintreated animals fertilised and developed in vitro . These results indicate that melatonin is a potent regulator of follicular development and oocyte competence during the anoestrous period of the ewe. © 2009 Akadémiai Kiadó. | en |
dc.source.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-68249146147&partnerID=40&md5=17ad51bc3d2d3403008716dd1b46ed7e | |
dc.subject | Embryo | en |
dc.subject | Melatonin | en |
dc.subject | Oocyte | en |
dc.subject | OPU | en |
dc.subject | Sheep | en |
dc.subject | animal | en |
dc.subject | article | en |
dc.subject | drug effect | en |
dc.subject | estrus cycle | en |
dc.subject | female | en |
dc.subject | fertilization in vitro | en |
dc.subject | ovary follicle | en |
dc.subject | Animals | en |
dc.subject | Estrus Synchronization | en |
dc.subject | Oocytes | en |
dc.subject | Ovarian Follicle | en |
dc.subject | Animalia | en |
dc.subject | Ovis aries | en |
dc.title | Effects of melatonin treatment on follicular development and oocyte quality in Chios ewes - Short communication | en |
dc.type | journalArticle | en |
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