Tannus R J, Thun R
Department of Reproduction, University of Zürich, Switzerland.
Zentralbl Veterinarmed A. 1995 Jun;42(4):275-83. doi: 10.1111/j.1439-0442.1995.tb00378.x.
A total of 259 normally fertile mares were examined gynecologically by means of rectal palpation and ultrasonography in order to record the presence of uterine cysts and pregnancy. The incidence of endometrial cysts was 22.4%. Of the 95 cysts observed during the trial, 87.4% were located in the middle and posterior segments of both uterine horns. The size of all endometrial cysts ranged between 3 and 48 mm. When all mares were assigned to three age groups, A < 7 years (n = 116), B 7-14 years (n = 117) and C > 14 years (n = 26), a significant (P < 0.01) increase in the number of endometrial cysts was observed with advancing age (4.3%, 29.1% and 73.1%, respectively). The pregnancy rates at Days 14 and 40 were significantly (P < 0.01) lower in mares with cysts (77.6% and 71.4%) compared to mares without cysts (91.5% and 88.0%). This suggests that the presence of uterine cysts plays an important role in the reduction of fertility of Thoroughbred mares.
为了记录子宫囊肿的情况和妊娠情况，通过直肠触诊和超声检查对总共259匹正常可育母马进行了妇科检查。子宫内膜囊肿的发生率为22.4%。在试验期间观察到的95个囊肿中，87.4%位于两个子宫角的中段和后段。所有子宫内膜囊肿的大小在3至48毫米之间。当将所有母马分为三个年龄组时，A组<7岁（n = 116），B组7 - 14岁（n = 117），C组>14岁（n = 26），随着年龄的增长，子宫内膜囊肿的数量显著（P < 0.01）增加（分别为4.3%、29.1%和73.1%）。与没有囊肿的母马（91.5%和88.0%）相比，有囊肿的母马在第14天和第40天的妊娠率显著（P < 0.01）较低（77.6%和71.4%）。这表明子宫囊肿的存在对纯种母马生育力的降低起着重要作用。
