期刊文献

Transcervical insemination in sheep: An anatomical and histological evaluation 收藏

在绵羊经宫颈人工授精:解剖和组织学评估
摘要
The use of transcervical artificial insemination (TC AI) of sheep has been under investigation since its development at Guelph, Canada in 1990. The TC AI method may provide an insemination technique which has a lower ethical cost than current laproscopic techniques which requires minor surgery. This trial evaluated the anatomical location of the insemination needle and the histological effect on the reproductive tract of ewes using TC AI. Two groups of ewes were inseminated using, firstly, an unmodified AI needle (UN; n = 20) and then a second group (n = 10) was inseminated using a modified needle (MN). All ewes were euthanased and histological examination was undertaken on the cervix. In the first group there was indication that the UN passed out of the reproductive tract through the cervical wall in 31.6% of inseminations. After modification of the needle this was reduced to 10%. A high degree of accuracy (79% and 92%; UN and MN needle respectively; P
摘要译文
自从1990年在加拿大Guelph发展以来,对羊的经宫颈人工授精(TCAI)的使用一直在进行研究.TCAI方法可以提供一种人工授精技术,其道德成本低于目前的腹腔镜技术,需要小手术。本试验采用TC AI评估授精针的解剖位置及对母羊生殖道的组织学影响。首先,使用未修改的AI针(UN; n \x3d 20),然后第二组(n \x3d 10),使用改良的针(MN)授精两组母羊。对所有母羊进行安乐死,并在子宫颈上进行组织学检查。在第一组中有迹象表明,联合国通过宫颈壁的生殖道通过31.6%的人工授精。针修改后,这减少到10%。准确度很高(分别为79%和92%;联合国和MN针分别为;
J.W.Campbell[1];T.G.Harvey[1];M.F.McDonald[1];R.I.Sparksman[2];. Transcervical insemination in sheep: An anatomical and histological evaluation[J]. Theriogenology, 1996,45(8): 1535-1544