[Biometric parameters of ovaries in the Tsigai strain of @entity742 and their changes after administration of XXXX ].

@entity42 @entity406 @entity742 @entity2669
The weight, length, width and volume of ovaries were determined as well as the number of follicles visible on the surface in relation to the presence of @entity42 on the ovary in autumn period after @entity2669 application. The ovaries of 43 @entity742 of the Tsigai breed were examined at the age of 2--4 years. The animals were divided into five groups. First group (I) was the control (n = 6). In the luteal phase of sexual cycle the animals of groups II to V were applied i. m. 125 micrograms of @entity2669 in @entity2669 inf. Spofa preparation. According to groups II (n = 8), III (n = 10), IV (n = 9), V (n = 10) the animals were killed at intervals of 24, 48, 72 and 120 hours (h) from the preparation application. The removed ovaries were fixed in 10% neutral @entity406 ; after a 48-hour fixation they were weighed and their length and width were measured. Tertiary follicles visible on the surface were counted and measured. In group I we demonstrated the significantly higher weight of ovaries with @entity42 ( @entity42 ) as compared with ovaries without @entity42 (P less than 0.001). The weight of ovaries with @entity42 dropped significantly within 48 hours after @entity2669 application as compared with control (P less than 0.001) and the difference in the ovary weight according to @entity42 incidence disappeared almost completely. In comparison with groups III and IV, the weight of ovaries in ewes of group V increased statistically significantly (P less than 0.01) on 5th day from the @entity2669 application. This finding is a result of development of new @entity42 after a passed ovulation. The alterations in length, width and volume of ovaries were not so significant as those in weight. The number of surface follicles was very variable and the changes were not significant. The changes in the average size of follicles larger than 1 mm and of the largest follicles have shown that both parameters achieved significantly higher values in ovaries of the control group with present @entity42 in comparison with ovaries without @entity42 . The reduction of surface follicles after @entity2669 application seems to be connected with a possible operation on contractile structures of the external theca folliculi.
