TY  - JOUR
T1  - Transcervical AI in Sheep: An Overview
AU  - Khalid, Muhammad
PY  - 2020
DA  - January
Y2  - 2019
JF  - Black Sea Journal of Agriculture
JO  - BSJ Agri
PB  - Karyay Karadeniz Yayımcılık Ve Organizasyon Ticaret Limited Şirketi
WT  - DergiPark
SN  - 2618-6578
SP  - 82
EP  - 84
VL  - 3
IS  - 1
LA  - en
AB  - Within sheep industry artificial insemination (AI) isa very valuable tool for rapid genetic progress. Besides, AI is performed to maximise the useof superior rams and contain certain contagious diseases within flocks. In thesheep breeding industry three methods of AI are prevalent: vaginal, cervical andlaparoscopic intrauterine. Commercially acceptablefertility rates, however, can be achieved by laparoscopic intrauterineinsemination using both fresh andcryopreserved semen but with cervical AI using fresh semen only. The most successful method, therefore, seemsto be Laparoscopic AI but it is an expensive, invasive surgical procedure and isnot considered to be welfare-friendly. Apractical solution is, therefore, transcervical intrauterine (TCAI). However, due to the convoluted nature of thecervix, penetration of the inseminating pipette to enable TCAI is rarelyachievable. This review describes some of the work that has been done tounderstand the mechanism(s) of cervical relaxation with the ultimate objectiveof performing transcervical AI in sheep.
KW  - Trans-cervical Artificial Insemination
KW  - Sheep
KW  - Cervical relaxation
CR  - Kershaw CM, Scaramuzzi RJ, McGowan MR, Wheeler-Jones CPD, Khalid M. 2007. The expression of Prostaglandin Endoperoxide Synthase 2 Messenger RNA and the proportion of smooth muscle and collagen in the sheep cervix during the estrous cycle. Biology of Reproduction, 76: 124-129. doi: 10.1095/biolreprod.106.054049.
CR  - Kershaw-Young CM, Khalid M, McGowan MR, Pitsillides AA, Scaramuzzi RJ. 2009. The mRNA expression of prostaglandin E receptors EP2 and EP4 and the changes in glycosaminoglycans in the sheep cervix during the estrous cycle. Theriogenology, 72: 251-261. doi: 10.1016/j.theriogenology.2009.02.018.
CR  - Perry K, Haresign W, Wathes DC, Khalid M. 2010a. Hyaluronan (HA) content, the ratio of HA fragments and the expression of CD44 in the ovine cervix vary with the stage of the oestrous cycle. Reproduction, 140: 133-141. doi: 10.1530/REP-09-0424.
CR  - Perry K, Haresign W, Wathes DC, Khalid M. 2010b. Intracervical application of hyaluronan improves cervical relaxation in the ewe. Theriogenology, 74: 1685-1690. doi: 10.1016/j.theriogenology.2010.07.008.
CR  - Perry K, Haresign W, Wathes DC, Pitsillides AA, Khalid M. 2012. Cervical expression of hyaluronan synthases varies with the stage of the estrous cycle in the ewe. Theriogenology, 77: 1100-1110. doi: 10.1016/j.theriogenology.2011.10.012.
UR  - https://dergipark.org.tr/en/pub/bsagriculture/issue//628463
L1  - https://dergipark.org.tr/en/download/article-file/837677
ER  -