نتایج جستجو برای: luteal function

تعداد نتایج: 1216604  

Journal: :iranian journal of applied animal science 2013
a. ezzat ahmed m.n. ismail m.s. aref a. zain el-abedin a.y. kassab

the present study investigated serum cortisol in response to postpartum ovarian resumption and luteal function. postpartum ovarian resumption was detected based on a rise in progesterone (p4) concentrations during three weeks after calving. twenty two holstein cows in a semi-closed dairy farm in qena city, egypt were used. the study was carried out from late march to early june; the period char...

Journal: :Journal of Ovarian Research 2009

Journal: :Journal of Ovarian Research 2009
Akihisa Takasaki Hiroshi Tamura Ken Taniguchi Hiromi Asada Toshiaki Taketani Aki Matsuoka Yoshiaki Yamagata Katsunori Shimamura Hitoshi Morioka Norihiro Sugino

BACKGROUND Blood flow in the corpus luteum (CL) is associated with luteal function. The present study was undertaken to investigate whether luteal function can be improved by increasing CL blood flow in women with luteal phase defect (LFD). METHODS Blood flow impedance in the CL was measured by transvaginal color-pulsed-Doppler-ultrasonography and was expressed as a resistance index (RI). The...

A. Ezzat Ahmed, A. Zain El-Abedin A.Y. Kassab M.N. Ismail M.S. Aref

The present study investigated serum cortisol in response to postpartum ovarian resumption and luteal function. Postpartum ovarian resumption was detected based on a rise in progesterone (P4) concentrations during three weeks after calving. Twenty two Holstein cows in a semi-closed dairy farm in Qena city, Egypt were used. The study was carried out from late March to early June; the period char...

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, ...

Introduction: Sex hormones’ fluctuations during the menstrual cycle, influence asthma and lung function. Information on the changes in exercise-induced sex hormones in mid luteal phase associated with lung function changes is not available. The aim of this study was to investigate the effect of the regular aerobic exercise on the lung function indices and serum levels of sex hormones in t...

Journal: :iranian journal of applied animal science 2016
m. elshabrawy ghanem

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, ...

Journal: :Journal of animal science 2005
J G Berardinelli P S Joshi

The objective of this study was to evaluate the influence of bull excretory products on the resumption of postpartum luteal function in primiparous, restricted-suckled cows. Hypotheses tested were that resumption of luteal function or proportions of cows that initiate luteal cycling did not differ among cows exposed to a bull (BE), exposed to excretory products of bulls (EPB), not exposed to a ...

Journal: :Gynecologic and obstetric investigation 2002
Mutsuo Ishikawa Kazuo Sengoku Kenichi Tamate Yasuo Takaoka Marian Kane Patrick F Fottrell

The present study was designed to construct reliable daily salivary progesterone profiles throughout the luteal phase to accurately evaluate the corpus luteum function. Furthermore, we investigated the clinical relevance of a simple midluteal salivary progesterone estimation for the diagnosis of luteal phase insufficiency by determining the diagnostic efficiency and cutoff values. A total of 12...

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