Relationship between physiological status and the average diameters of follicles(Small , Medium and Large ) in female Iraqi buffalo

Abstract

The current study was designed to describe the relationship of female physiological status during follicular and luteal phases with average diameters of ovarian follicles on right and left ovary , depending on the follicular number and measuring diameters ,were categorized in to small , medium and large follicles , which visually illustrate morphologically the follicular phase . (50)samples were collected from AL-Shula in Baghdad and Najaf in modern Najaf , twice aweek , samples were divided in to two groups heifer (33)and multiparous (17) . The current study recorded the average diameter of small , medium and large follicles (3.93±0.04)mm ,(6.91±0.08)mm and (11.18±0.16)mm respectively . The present study showed the significant (P<0.01) and non significant decrease in follicular diameter(small , medium and large) for January compared to other study months ,the results of the current study also showed the significant superiority (P<0.01) in the diameter of small , medium follicles during the luteal phase of multiparous(4.06±0.08)mm and (7.13±0.19)mm respectively . compared with luteal phase of heifers , and did not record a significant difference in the average diameter of small , medium and large follicles during follicular phase between heifer and multiparous animals , also did not record significant difference in the average diameter of large follicles during luteal phase between heifers and multiparous .We conclude form the current study , the low ovarian activity during January and did not record significant differences in the average of follicular diameter (small , medium and large) between heifers and multiparous during follicular phase .