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Progesterone treatment, FSH plus eCG, GnRH administration, and Day 0 Protocol for MOET programs in sheep.
The effect of various superstimulatory treatments on the number of corpora lutea, fertilization rate, and embryo yield was studied in sheep. Overall, data from 708 Merino donors and 4262 embryos wereExpand
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Follicular recruitment and ovulatory response to FSH treatment initiated on day 0 or day 3 postovulation in goats.
The present study evaluates the effect of the presence of a large growing follicle at the onset of superovulatory treatment on follicular recruitment and ovulatory response in dairy goats. TheExpand
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Day 0 protocol: superstimulatory treatment initiated in the absence of a large follicle improves ovarian response and embryo yield in goats.
A new superstimulatory protocol (Day 0 Protocol) to initiate FSH treatment in the absence of a large follicle was compared to a traditional protocol in goats. The Day 0 Protocol (n=44) consisted ofExpand
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Storage of ram semen at 5 °C: effects of preservation period and timed artificial insemination on pregnancy rate in ewes
Artificial insemination (AI) using chilled ram semen has not been adopted in Uruguay yet, probably due to a lack of information about the use of this technology in the country. This study evaluatedExpand
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Prostaglandin F2alpha treatment associated with timed artificial insemination in ewes.
Traditional treatments of two prostaglandin F2 alpha (PGF2alpha) doses at 10-day intervals or more did not result in acceptable pregnancy rates in timed artificial insemination (TAI) programmes inExpand
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Ovarian responses of anestrous ewes to the "ram effect"
Ovarian responses to the "ram effect" were characterized in 11 anestrous Corriedale ewes. In seven ewes, there was a luteinizing hormone (LH) surge 36.7 ± 12.3 h (mean ± SEM) after ram introductionExpand
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Semen deposition by cervical, transcervical and intrauterine route for fixed-time artificial insemination (FTAI) in the ewe.
Semen deposition through the cervix into the uterus is a difficult technique in ewes and represents the main limiting factor for insemination in this species. The objective of this study was toExpand
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Serum progesterone concentrations during FSH superstimulation of the first follicular wave affect embryo production in sheep.
The aim of the present study was to evaluate the effect of serum progesterone concentrations during the superstimulatory treatment of the first follicular wave on fertilization rate and embryoExpand
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Fertility obtained with different progestogen intravaginal devices using Short-term protocol for fixed-time artificial insemination (FTAI) in sheep
Abstract The objective of this study was to evaluate the pregnancy outcomes obtained with either cervical or intrauterine insemination after Short-term protocols (6 days) for FTAI comparing differentExpand
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Response of Corriedale Ewes to the “Ram Effect” after Priming with Medroxyprogesterone, Fluorogestone, or Progesterone in the Non-Breeding Season
One hundred eighty-nine Corriedale ewes were used during the non-breeding season to study the “ram effect” stimulus after priming with progestogens. Intravaginal sponges containing eitherExpand
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