Waelchli R O
Can Vet J. 1990 May;31(5):379-84.
Endometrial biopsy plays an important role in fertility examination of the mare. The purpose of this study was to examine the prognostic usefulness of endometrial biopsy under nonuniform breeding management conditions, and to clarify any relationship with age of the mare. Based on endometrial histological changes, 192 mares from different farms were classified using a four-category grading system. There were significant associations between categories and fertility. Mean pregnancy rates in the four categories were 79, 49, 33 and 0% and mean foaling rates were 70, 42, 18 and 0%, respectively. Mares older than the median age (=11 years) had, on average, higher category scores and significantly lower fertility than younger mares. Within categories, there was a tendency towards higher fertility in younger mares. Although the precise prediction of fertility of the individual mare remains difficult, it is evident from this investigation that endometrial biopsy has considerable prognostic potential even under nonuniform breeding management conditions. Furthermore, the age of a mare must be considered when estimating her fertility potential.
子宫内膜活检在母马繁殖力检查中起着重要作用。本研究的目的是在非统一繁殖管理条件下检验子宫内膜活检的预后价值，并阐明其与母马年龄的关系。根据子宫内膜组织学变化，采用四类分级系统对来自不同马场的192匹母马进行分类。类别与繁殖力之间存在显著关联。四类的平均妊娠率分别为79%、49%、33%和0%，平均产驹率分别为70%、42%、18%和0%。年龄大于中位数（=11岁）的母马，平均类别得分较高，繁殖力显著低于年轻母马。在同一类别中，年轻母马的繁殖力有更高的趋势。虽然精确预测个体母马的繁殖力仍然困难，但从本次调查中可以明显看出，即使在非统一繁殖管理条件下，子宫内膜活检也具有相当大的预后潜力。此外，在评估母马的繁殖潜力时，必须考虑其年龄。
