Anatomy of the cervix in Farahani breed ewes and lambs


  • Mahdi Khodaei Motlagh Department of Animal Science, Faculty of Agriculture and Natural Resources, Arak University, Arak, - 38156-8- 8349, Iran


cervical rings, Farahani sheep and lambs


The sheep cervix has numerous and divers rings that reduce lambing rates after artificial insemination in sheep. There is high diversity between sheep breeds in cervix structure. In this study we considered the anatomy and the biometrical properties of the sheep cervix in Farahani breed. For this purpose two series of reproductive tracts include to 24 lambs and 26 adult ewes were collected from Arak abattoir and were moved to the lab. A morphometric measurement of cervix (length, weight and diameter) for adult ewes was 54.8, 7.2 gr and 9.76(mm) and for lambs was 37.4, 3.31 gr and 7.72 (mm). There are significant different between adult ewes and lambs in these traits. In the lambs length, weight and diameter of cervix was affected by the morphology of the cervical external os whereas in adult ewes, length and diameter of cervix was not affected by the morphology of the cervical external os.


Abbasi, M., Mohhamadzadeh s. and Gharezi A. (2011) Study of cervix morphometry in Lori sheep breed. Iran.

Veter. J., 7 (2), 36-43.

Abusineina, M.E., 1969. Effect of pregnancy on the dimensions and weight of the cervix uteri of sheep. Br. Vet. J.

, 21–4.

Bunch, T.D., Ellsworth, H.S., 1981. Gross anatomy of the ovine cervix. Int. Goat. Sheep. Res., 1, 282–285.

Dun, R., 1955., The cervix of the ewe. Its importance in artificial insemination of sheep. Aust. Vet. J., 101–3.

Eppleston, J., Maxwell, W.M.C., 1993. Recent attempts to improve fertility of frozen ram semen inseminated into

the cervix. Wool Technol. Sheep Breed., 41, 291–302.

Fukui, Y, Roberts, E., 1978. Further studies on non-surgical intrauterine technique for artificial insemination in the

ewe. Theriogenol., 10, 381–93.

Halbert, G.W., Dobson, H., Walton, J.S., Buckrell, B.C., 1990. The structure of the cervical canal of ewe.

Theriogenol., 33, 977–992.

Kaabi, M., Alvarez, M., Anel, E., Chamorro, C.A., Boixo, J.C., de Paz, P., Anel, L., 2006. Influence of breed and age on

morphometry and depth of inseminating catheter penetration in the ewe cervix: a postmortem study.

Theriogenol., 66(8), 1876-1883.

Kershaw, C.M., Scaramuzzi, R.J., McGowan, M.R., Wheeler-Jones, C.P., Khalid, M., 2007. The expression of

prostaglandin endoperoxidesynthase 2 messenger RNA and the proportion of smooth muscle and collagen in

the sheep cervix during the estrous cycle. Biolol. Reproduct., 76(1), 124-129.

Moeini, M.M., Daraei, S., Moghadam, A., 2012. Anatomical characteristics of fat-tailed sheep cervical and

influence of artificial insemination catheter. Nation. Confer. Breed. Preservat. Genet. Resource. Zel Dalagh

sheep. Gonbacavous univ., 11-16

More, J., 1984. Anatomy and histology of the cervix uteri of the ewe: new insights. Acta Anat., 120, 156–159.

Naqvi, S.M.K., Pandey, G.K., Gautam, K.K., Joshi, A., Geethalakshmi, V., Mittal, J.P., 2005. Evaluation of gross

anatomical features of cervix tropical sheep using cervical silicone moulds. Anim. Reproduct. Sci., 85, 337–

Salamon, S., Maxwell, W.M.C., 2000. Storage of ram semen. Anim. Reprod. Sci. 62, 77–111.

Souza MIL. 1993. A via cervical na inseminação artificial ovina com semen congelado. Santa Maria, RS:

Universidade Federal de Santa Maria. Master´s Dissertat., 47 pp.



How to Cite

Khodaei Motlagh, M. . (2014). Anatomy of the cervix in Farahani breed ewes and lambs. Scientific Journal of Animal Science, 3(7), 198-202. Retrieved from



Original Article

Most read articles by the same author(s)