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논문 기본 정보

자료유형
학술저널
저자정보
정재혁 (중앙대학교 대학원 축산학과) 김종대 (중앙대학교 대학원 축산학과) 정영채 (중앙대학교 대학원 축산학과) 김창근 (중앙대학교 대학원 축산학과)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제9권 제2호
발행연도
1985.1
수록면
97 - 104 (8page)

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This study was conducted to investigate the effects of unilateral ovariectomy on the weight of the remaining ovary, the change of number of ovarian follicle, number of corpus luteum and serum progesterone level. Sixty Sprague-Dawley female rats, 23$\pm$2 days old, were divided into 2 groups (control and unilaterally ovariectomized goup) with 30 heads per groups. Each group was again subdivided into 6 groups according to 6 experimental periods; Day 4, 8, 12, 16, 20 and 24 after uniteral ovariectomy. Five arts at every 4 day intervals were sacrificed for the measuring of ovarian weight and for quantitative histologic examination of ovary and at the same time, blood samples were taken for the determination of serum progesterone level of radioimmunoassy. The results obtained were as follows: During the experimental periods, a significant hypertrophy occured in the remaining ovary of unilaterally ovariectomized group from day 16 after operation. The average ovarian weight of control group at day 16 was 21.0$\pm$1.7mg, which is samller than that of unilaterally ovariectomized group weighing 50.5$\pm$8.4mg(P<0.01). The ovarian weight of the unilaterally ovariectomized rats at day 20 and day 24 was 75.9$\pm$2.2 mg and 63.3$\pm$7.0 mg, which is heavier than those of control group; 29.1$\pm$2.3 and 26.3$\pm$1.7 mg(P<0.01 and P<0.01). 2. A same degree of ovarian follicle development was observed in the unilaterally ovariectomized group. Following unilateral ovariectomy and there was no change in total number of follicles larger than 130$\mu$ during the period from day 4 till day 24 after operation. 3. Although the size fo ovarian follicle did not significantly change between two groups from day 4 till day 16, the size of vesicular follicle in unilaterally ovariectomized group (406.3$\pm$26.2$\mu$) was significantly greater as compared to that of control group (323.8$\pm$19.3$\mu$)(P<0.05). 4. Corpus luteum in unilaterally ovariectomized and control group began to a, pp.ar from day 16 after operation and then the number of corpus luteum slightly increased. The number of corpus luteum in unilaterally ovariectomized group at day 24 ws remarkably increased (13.7$\pm$1.41) than that of control (5.2$\pm$2.01)(P<0.01). 5. Serum progesterone levels in unilaterally ovariectomized group were slightly higher than those of control but there were no significant difference between treatment groups.

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