کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5795384 1554351 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Relationship of Doppler velocimetry parameters with antral follicular population and oocyte quality in Canindé goats
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Relationship of Doppler velocimetry parameters with antral follicular population and oocyte quality in Canindé goats
چکیده انگلیسی


- The color Doppler has been used in to study the ovarian blood flow and verify its relationship with ovarian stimulation.
- Doppler velocimetry parameters were similar in both adopted ovarian stimulation protocols.
- A relationship between the percentage of good quality COCs (oocytes GII) with the peak systolic velocity and pressure gradient were observed.

The aim of this study was to evaluate the effect of ovarian stimulation protocols on Doppler velocimetry parameters of the ovarian artery and its relationship with the follicular population and oocyte quality. Canindé goats (n = 10) were used for ovarian stimulation according to two different protocols: multiple doses (FSH) or a single dose (eCG). The follicular population and ovarian blood flow were determined in the ovarian arteries immediately after treatment through Doppler ultrasonography. To observe the oocyte quality, LOPU was used to aspirate the oocyte from the Graafian follicles and graded. In addition, blood samples were collected for Estradiol concentration. The results showed that the mean number of follicles per animal was higher (P < 0.05) in goats treated with multiple doses. However, the resistance index, peak systolic velocity, and pressure gradient of the ovarian artery were similar (P > 0.05) between treatment groups. A positive correlation (P < 0.05) was observed between the pressure gradient of the ovarian artery and intermediate, large, and total follicles number. A higher (P < 0.05) percentage of viable oocytes (GI and GII) were obtained in the multiple dose treatment. A positive (P < 0.05) association between oocytes (GII), and peak systolic velocity and pressure gradient were observed. In conclusion, the multiple doses treatment greatly enhances the recruitment of follicles and maintains the oocyte quality. In addition, the use of Doppler ultrasonography positively reveals that the peak systolic velocity, resistance index, and pressure gradient have a positive association with follicular population and oocyte quality.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Small Ruminant Research - Volume 141, August 2016, Pages 39-44
نویسندگان
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