Evaluation of Relationship between Serum Progesterone levels and Size of Normal and Vacuolated Corpus Luteum and Comparison of Fertility in Holstein dairy cows
作者： Amirali Kaveh , Mostafa Vosough Khelejani , Vahid Ghadiri , Farzad Noei , Pedram Isaloo
DOI:
关键词: Significant difference 、 Estrous cycle 、 Endocrine structure 、 Endocrinology 、 Statistical analysis 、 Corpus luteum 、 Internal medicine 、 Fertility 、 Biology 、 Serum progesterone 、 CLs upper limits
摘要: The corpus luteum is a temporary endocrine structure in female mammals that involved the production of relatively high levels progesterone and moderate estradiol inhibin A. In present study we aimed to determine range these two kinds CLs secreted from them fertility rate. On days 7 9 estrus cycle, ovaries were examined using rectal ultrasonic methods. used apparatus was Hitachi v900 frequency 7.5 MHz linear. Then, type CL diagnosed. 10CC blood samples obtained. Plasma isolated at laboratory centrifuge 3000RPS for 10 minutes kept -20°C till using. Ultrasonographic evaluation showed 100 diestrus cows, 33 cases had vacuolated 67 non CL. By dimensioning ultrasonographic method calculating area it revealed size 357.391mm2 mean square 348.53 mm2 (table 1). Statistical analysis no significant difference among area. As shown diagram 2, value serum 9.34 ng/ml 8.36 non-vacuolated, respectively. groups term (P=0.64). Also, subsequence administration PG induction AI, with on day 30 after 18 pregnant 13 pregnant. non- CL, 41 26 (P=0.369).
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