妊娠母马eCG分泌水平的研究进展  

Research advance in maternal level of eCG in pregnant mare

作　　者：廉嵩[1] 侯晓亮[2] 韩红兵[1] 韩国才[1,3] 

机构地区：[1]中国农业大学动物科技学院,北京100193 [2]黑龙江民族职业学院,哈尔滨150086 [3]中国农业大学马研究中心,北京100193

出　　处：《东北农业大学学报》2010年第6期157-160,共4页Journal of Northeast Agricultural University

基　　金：国家重点基础研究"973"项目基金(2006CB102100);国家自然科学基金(30471234)

摘　　要：马绒毛膜促性腺激素(Equine chorionic gonadotropin,eCG)是马属动物妊娠早期由子宫内膜杯分泌的一种异源二聚体糖蛋白,文章综述了妊娠母马子宫内膜杯的结构、eCG的生物学特性、eCG在动物繁殖中的应用、不同马属动物、马的品种、年龄、及母马所怀胎儿性别等遗传、生理因素对妊娠母马eCG分泌水平的影响。研究表明,怀驴骡母驴、轻年怀头胎的妊娠母马、怀雌性胎儿的妊娠母马eCG的分泌水平较高。eCG作为一种胎源的糖蛋白很可能在母体的免疫耐受中发挥特定的作用。Equine chorionic gonadotropin（eCG）is secreted by trophoblastic cells during gestation in the mare and known as glycoprotein of heterodimers. In this study, the structure of endometrial cup, the biological char acteristics and clinical application of eCG, and how the genetical and physical factors such as different equines, horse breed, age and fetal gender affected the maternel level of eCG were briefly reviened. Relative researches indicated that female donkey with hinny foal, young mares carrying first foal and mares with female foal kept a higher level of eCG in the early gestation. As an embryo derived glycoprotein, eCG plays a role in the progress of immunological tolerance in the pregnant mare.

关 键 词：ECG 胎儿基因型 母马年龄 胎儿性别 

分 类 号：S858.21[农业科学—临床兽医学]