The objectives of Experiment 1 were to determine the interval from ovulation to deviation, and diameter of the dominant follicle (DF) and largest subordinate follicle (SF) at deviation in Nelore (Bos indicus) heifers by two methods (observed and calculated). Heifers (n = 12) were examined ultrasonographically every 12 h from ovulation (Day 0) to Day 5. The time of deviation and diameter of the ...

PURPOSE To assess variations in the biomechanical properties and central corneal thickness (CCT) throughout the female menstrual cycle. SETTING Department of Ophthalmology, Assaf Harofeh Medical Center, Zerifin Israel. DESIGN Case series. METHODS Young healthy women were prospectively recruited. Every participant was assessed at the beginning of the menstrual cycle, at ovulation, and at t...

Hormonal asynchronies during oestrus, related to the presence of suprabasal plasma-progesterone (P4) concentrations and a delayed ovulation, interfere with the fertility of repeat-breeder heifers (RBH). Since tubal dysfunction can occur in connection with hormonal asynchronies and constrained availability of fertile spermatozoa at the time of ovulation, the present study tested the hypothesis t...

Introduction Reproductive performance in swine is most related to inseminations occurring near the time of ovulation. This is due to the time-span for normal fertilization of eggs being limited by both the egg after the occurrence of ovulation (<12 h) and the sperm after insemination (<24 h). Therefore, the number of eggs that are fertilized, the percentage of normal embryos, the resulting preg...

The aim of this study was to determine how puerperal metritis influences the resumption estrous cycle in dairy cows. ovaries 72 multiparous Holstein cows (38 healthy and 34 metritic - after treatment) were ultrasonographically scanned until first ovulation postpartum 7 days confirm ovulation. All divided 4 groups: HSO (healthy with single ovulation) (n=29), MSO (metritic (n=21), HDO double (n=9...

an experiment was conducted to investigate the effect of different types of ovarian cycles on reproductive indices and blood metabolites in 61 holstein cows. blood samples were taken from each cow between day 12 and day 50 postpartum (pp). serum progesterone concentrations were measured to determine the onset of luteal function and different types of luteal dysfunctions in cows. serum glucose, ...

conclusions this study revealed that lod in females with pcos with a serum e2 > 40 pg/ml was sufficient and safe to trigger development of ovarian follicles followed by clinical pregnancy. results there was significant difference in the average starting time of ovulation and continuing spontaneous ovulation of cases with pcos with e2 levels > 40 pg/ml, compared with ones with e2 ≤ 40 pg/ml (p =...

Abstract The ovulatory luteinizing hormone (LH) surge induces rapid changes of gene expression and cellular functions in granulosa cells (GCs) undergoing luteinization. However, it remains unclear how the genome-wide are regulated. H3K4me3 histone modifications involved alteration expression. In this study, we investigated transcriptome status mouse GCs were obtained from mice treated with equi...

CONTEXT For the last 40 yr, the first line of treatment for anovulation in infertile women has been clomiphene citrate (CC). CC is a safe, effective oral agent but is known to have relatively common antiestrogenic endometrial and cervical mucous side effects that could prevent pregnancy in the face of successful ovulation. In addition, there is a significant risk of multiple pregnancy with CC, ...