title: Relationship between electrical resistance of cervical mucus and ovarian steroid concentration at the time of artificial insemination in ewes.
abstract: The purpose of this study was to investigate whether fertile or non-fertile inseminations (AI) in synchronized ewes are correlated with the electrical resistance of cervical mucus (ERCM) and the ovarian steroid concentration. AIs were performed either at fixed-time (group A) or after estrus detection (group B). Retrospective analysis revealed that at AI, pregnant ewes had lower ERCM values and progesterone concentrations than non-pregnant ones (p<0.05). It appears that ERCM may be used as an additional index for fertility enhancement of inseminated ewes.
authors.affiliation: Faculty of Veterinary Medicine, University of Thessaly, 43100 Karditsa, Greece.
authors.forename: Ekaterini
authors.initials: E
authors.lastname: Theodosiadou
authors.affiliation: Faculty of Veterinary Medicine, University of Thessaly, 43100 Karditsa, Greece.
authors.forename: Georgios S
authors.initials: GS
authors.lastname: Amiridis
authors.affiliation: Veterinary Research Institute, 57001 Thermi, Thessaloniki, Greece. Electronic address: Tsiligianni@vri.gr.
authors.forename: Theodora
authors.initials: T
authors.lastname: Tsiligianni
mesh_terms: D000818:Animals; D017849:Animals, Inbred Strains; D002582:Cervix Mucus / Q000737:chemistry*; D015536:Down-Regulation; D017097:Electric Impedance; D004958:Estradiol / Q000032:analysis / Q000097:blood / Q000378:metabolism; D004972:Estrus Detection; D004973:Estrus Synchronization; D005260:Female; D006115:Greece; D007315:Insemination, Artificial / Q000662:veterinary*; D016014:Linear Models; D010053:Ovary / Q000378:metabolism*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood* / Q000378:metabolism; D011863:Radioimmunoassay / Q000662:veterinary; D034561:Sheep, Domestic / Q000502:physiology*; D013997:Time Factors
chemical_list: D011374:Progesterone; D004958:Estradiol
keywords: Cervical artificial insemination; Chios ewes; Electrical resistance of cervical mucus; Estrus synchronization