Ultrasonographic fetometry and determination of fetal sex in buffaloes (Bubalus bubalis)
Ultrasonographic fetometry and determination of fetal sex in buffaloes (Bubalus bubalis)
复制标题
DOI：
10.1016/j.anireprosci.2007.04.010
复制
发表时间：
2008-06-01
影响因子：
2.2
通讯作者：
Fahmy, S.
中科院分区：
文献类型：
--
作者：
Ali, A.;Fahmy, S.
本研究的目的是建立水牛胎儿不同部位的超声生物识别阈值，并评价超声判定胎儿性别的可行性和准确性。对12头妊娠水牛进行了一系列超声检查，测量胎儿部位，确定胎儿性别和胎位。结果表明，胚胎和羊水泡分别在妊娠第4周和第5周被检测到。第7周观察到组织，第8~10周出现骨化。不同的研究参数与胎龄之间存在高度的相关性，其中与妊娠早期的头臀长度(CRL)和羊水泡直径(AVD)、中期的双顶径(BPD)和妊娠中后期的眼球直径(EBD)的相关性最高。结果还表明，胎儿性别鉴定的最佳时间窗在妊娠10周至18周之间，总体准确率为97.1%。在第30周时采用所有前位胎儿的最终极点。总之，总体数据表明，水牛超声胎儿测量在评估胎儿发育、估计胎龄和确定胎儿性别方面是可行的和有价值的。(C)2007 Elsevier B.V.保留所有权利。
The aim of the current study was to establish ultrasonic biometric threshold of different fetal parts in buffaloes and to evaluate the feasibility and accuracy of ultrasonic fetal sex determination. Serial ultra-sonographic examinations were carried out on twelve pregnant buffalo-cows, during which fetal parts were measured, and fetal sex and presentation were determined. The obtained results revealed that embryo and amniotic vesicle (AV) were detected by the forth and fifth week of pregnancy, respectively. Organization was observed by the seventh week, while ossification was indicated between the eighth and 10th week. High correlations were found between different studied parameters and gestational age, where the highest correlation was found with the crown-rump length (CRL) and amniotic vesicle diameter (AVD) at the early-gestation; the biparietal diameter (BPD) at the mid-gestation; and the eyeball diameter (EBD) at the mid- and late-gestation. The results also revealed that the best window for fetal sexing was found between the 10th and 18th week of gestations, with an overall accuracy of 97.1%. The final polarity with all fetuses in anterior presentation was adopted by the 30th week. In conclusion, the overall data indicated the feasibility and value of ultrasonographic fetometry in buffaloes for evaluation of fetal development, estimation of gestational age and determination of fetal sex. (c) 2007 Elsevier B.V. All rights reserved.