کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2094998 1082064 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of conversion of follicular activity from wave 1 to wave 2 and proximity of wave 2 follicles to CL in heifers
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Effects of conversion of follicular activity from wave 1 to wave 2 and proximity of wave 2 follicles to CL in heifers
چکیده انگلیسی

Effects of the dominant follicle (DF) of follicular wave 1 on follicles and ovarian vascular perfusion during wave 2 and the effects of intraovarian distance between a follicle and CL on follicles of wave 2 were studied daily (N = 28 heifers). Intraovarian patterns were DF1–CL and DF2–CL (DF and CL in the same ovary for waves 1 and 2, respectively), DF1 and DF2 (DF alone), CL (CL alone), and devoid (ovary with neither DF nor CL). On the basis of blood flow resistance and the number of follicles per ovary, the wave 1 patterns of DF1 versus devoid resulted in greater (P < 0.05) vascular perfusion and more (P < 0.05) follicles in wave 2 for the following patterns: (1) conversion of DF1 to DF2 than in conversion of devoid to DF2 and (2) conversion of DF1 to devoid than in conversion of devoid to devoid. On the day of emergence of wave 2 (future DF2 closest to 5.5 mm) in two-wave interovulatory intervals, the mean diameter of all follicles that were adjacent (distance, ≤1 mm) to the CL (4.4 ± 0.3 mm) was greater (P < 0.05) than that for follicles that were separated (3.4 ± 0.2 mm). The hypotheses were supported that (1) the extent of vascular perfusion for the intraovarian patterns of wave 1 affects the perfusion and the number of follicles for the patterns of wave 2 and (2) close proximity of a follicle to the CL in wave 2 has a positive effect on the follicle.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theriogenology - Volume 83, Issue 7, 15 April 2015, Pages 1241–1248
نویسندگان
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