title: Relationship between the responsiveness to multiple-ovulation treatment and the number of bovine oocytes collected by transvaginal follicle aspiration.
abstract: To characterize factors affecting the number of bovine oocytes recovered transvaginally, a regression analysis was performed between the responsiveness to multiple-ovulation treatment and the number of oocytes recovered transvaginally. The number of embryos recovered following multiple-ovulation treatment and the number of oocytes recovered transvaginally increased when the number of follicles to be aspirated transvaginally increased (P<0.05. P<0.01). The number of cumulus-oocyte complexes recovered transvaginally also increased when the number of oocytes to be aspirated transvaginally increased (P<0.001). However, the number of viable embryos that recovered following multiple-ovulation treatment had no relation to the number of cumulus-oocyte complexes recovered transvaginally. These results suggested that more oocytes can be recovered from donors that have a high responsiveness to multiple-ovulation treatment.
authors.affiliation: Embryo Transplantation Laboratory, Snow Brand Milk Products Co., Ltd., Tomakomai, Hokkaido, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Hashimoto
authors.forename: R
authors.initials: R
authors.lastname: Takakura
authors.forename: M
authors.initials: M
authors.lastname: Yoshinari
authors.forename: N
authors.initials: N
authors.lastname: Minam
authors.forename: M
authors.initials: M
authors.lastname: Yamada
authors.forename: H
authors.initials: H
authors.lastname: Imai
authors.forename: N
authors.initials: N
authors.lastname: Kashim
mesh_terms: D000818:Animals; D002417:Cattle / Q000196:embryology / Q000502:physiology*; D003008:Cloprostenol / Q000008:administration & dosage; D015237:Dinoprost / Q000008:administration & dosage; D005260:Female; D005640:Follicle Stimulating Hormone / Q000008:administration & dosage; D007315:Insemination, Artificial / Q000662:veterinary*; D009865:Oocytes / Q000502:physiology*; D006080:Ovarian Follicle / Q000502:physiology*; D010062:Ovulation Induction / Q000706:statistics & numerical data / Q000662:veterinary*; D010120:Oxytocics / Q000008:administration & dosage; D012044:Regression Analysis
chemical_list: D010120:Oxytocics; D003008:Cloprostenol; D005640:Follicle Stimulating Hormone; D015237:Dinoprost