Data regarding attempts at conception and achieved paternity following TC treatment were retrieved from the questionnaire (Brydøy et al, 2005).
The high conception rates achieved across successive breedings was indicative of reproductively healthy animals, with good heat detection and insemination technique providing confidence in retrospective fertility status.
The somewhat lower conception rate achieved with frozen semen may be attributed, at least in part [ 10], to degenerative conditions of the endometrium of two older mares (18 years-old) which had a grade III Kenny's endometrial classification.
The guidelines recommended that any woman planning pregnancy resume treatment before conception to achieve Phe levels of 120 360 µmol/l and maintain these levels throughout pregnancy to reduce the risk of effects of elevated blood Phe levels on the fetus.
After six months, in case no conception has been achieved, these patients will start fertility treatment according to the Dutch fertility guidelines.
However, it is interesting to note that satisfactory conception rates were achieved in such mares when SLC-selected spermatozoa were used.
We therefore concluded that while the likelihood of poor responders is increased among obese women, reasonable conception rates were achieved in nonobese poor responders, which were comparable to nonobese or normal responder patients.
The majority of women were 25 34 years at conception, nonblack, married, achieved a high school degree or higher, upper income (>350% of the 2001 Poverty Guidelines), and nonsmokers during pregnancy.
According to current studies evaluating conservative surgery in this group, high conception rates were achieved after a simple ovarian cystectomy (Longacre et al, 2005; Marcickiewicz and Brannstrom, 2006; Tinelli et al, 2006; Yinon et al, 2007), but the high risk of local recurrence of up to 75% still limited the routine implementation (Suh-Burgmann, 2006).
Maximum AI conception rates are achieved on virgin heifers.
