Driancourt M A, Mariana J C, Palmer E
Reprod Nutr Dev (1980). 1982;22(5):803-12. doi: 10.1051/rnd:19820607.
In the middle of the breeding season, 16 pony mares (n = 4 per day) were slaughtered on four different days (days 6, 14, 17 and the preovulatory day) of the oestrous cycle, day 0 being the day of the last ovulation. All the ovaries were examined histologically; the number, size and atresia (defined by granulosa cell pyknosis) of all follicles larger than 1 mm in diameter were studied, using a Kryotome-video recorder-TV system. Follicular distribution of all the sizes studied (1-5 mm, 5-10 mm, greater than 10 mm in diameter) was very similar in the right and left ovaries. However, compared to the other ovary, the ovary with a luteal structure had fewer (P less than 0.05) healthy follicles larger than 10 mm. All follicles larger than 10 mm in diameter at day 6 were atretic. At day 14, a group of normal follicles larger than 10 mm was found in all the animals, and number of follicles larger than 10 mm was significantly increased (P less than 0.01). The largest normal follicle has increased in size at day 17 compared to day 14. However, a significant increase in the number of follicles undergoing early atresia was observed (P less than 0.05). Except for the large preovulatory follicle, all the follicles larger than 10 mm were atretic just before ovulation. There was a relationship between the follicular population and the duration of the follicular phase; the number of normal follicles 1-10 mm in diameter and the duration of the follicular phase were highly correlated (R = -0.56; P less than 0.02).
在繁殖季节中期，在发情周期的四个不同日子（第6天、第14天、第17天和排卵前一天）宰杀了16匹小母马（每天4匹），第0天为最后一次排卵日。对所有卵巢进行了组织学检查；使用冷冻切片机 - 录像机 - 电视系统研究了直径大于1毫米的所有卵泡的数量、大小和闭锁情况（由颗粒细胞固缩定义）。所研究的所有大小（直径1 - 5毫米、5 - 10毫米、大于10毫米）的卵泡在左右卵巢中的分布非常相似。然而，与另一个卵巢相比，有黄体结构的卵巢中直径大于10毫米的健康卵泡较少（P < 0.05）。第6天所有直径大于10毫米的卵泡均闭锁。在第14天，在所有动物中都发现了一组直径大于10毫米的正常卵泡，且直径大于10毫米的卵泡数量显著增加（P < 0.01）。与第14天相比，第17天最大的正常卵泡大小有所增加。然而，观察到早期闭锁卵泡的数量显著增加（P < 0.05）。除了排卵前的大卵泡外，排卵前所有直径大于10毫米的卵泡均闭锁。卵泡群体与卵泡期持续时间之间存在关系；直径1 - 10毫米的正常卵泡数量与卵泡期持续时间高度相关（R = -0.56；P < 0.02）。
