بهبود بازده تولید مثلی در گوسفندان ایرانی نژاد زل با استفاده از تزریق هورمون‌های استرادیول و اکسی توسین در فصل تولید مثلی

Akinbami, M.A., Meredith, S., Warren, J.E., Jr., Anthony, R.V., Day, B.N., 1990. Cervical dilation, conception rate, and concentrations of progesterone and estradiol-17B in postpartum ewes treated with porcine relaxin. Theriogenology 34, 927-940.

Anel, L., Alvarez, M., Martinez-Pastor, F., Garcia-Macias, V., Anel, E., de Paz, P., 2006. Improvement strategies in ovine artificial insemination. Reprod Domest Anim 41 Suppl 2, 30-42.

Anel, L., Kaabi, M., Abroug, B., Alvarez, M., Anel, E., Boixo, J.C., et al., 2005. Factors influencing the success of vaginal and laparoscopic artificial insemination in churra ewes: a field assay. Theriogenology 63, 1235-1247.

Ayad, V.J., Leung, S.T., Parkinson, T.J., Wathes, D.C., 2004. Coincident increases in oxytocin receptor expression and EMG responsiveness to oxytocin in the ovine cervix at oestrus. Anim Reprod Sci 80, 237-250.

Buckrell, B.C., Buschbeck, C., Gartley, C.J., Kroetsch, T., McCutcheon, W., Martin, J., et al., 1994. Further development of a transcervical technique for artificial insemination in sheep using previously frozen semen. Theriogenology 42, 601-611.

Cabrol, D., Dallot, E., Cedard, L., Sureau, C., 1987. Pregnancy-related changes in the distribution of glycosaminoglycans in the cervix and corpus of the human uterus. European Journal of Obstetrics and Gynecology and Reproductive Biology 20, 289-295.

Croy, B.A., Prudencio, J., Minhas, K., Ashkar, A.A., Galligan, C., Foster, R.A., et al., 1999. A preliminary study on the usefulness of huil-8 in cervical relaxation of the ewe for artificial insemination and for embryo transfer. Theriogenology 52, 271-287.

El Maradny, E., Kanayama, N., Kobayashi, H., Hossain, B., Khatun, S., Liping, S., et al., 1997. The role of hyaluronic acid as a mediator and regulator of cervical ripening. Human Reproduction 12, 1080-1088.

Eppleston, J., Salamon, S., Moore, N.W., Evans, G., 1994. The depth of cervical insemination and site of intrauterine insemination and their relationship to the fertility of frozen-thawed ram semen. Animal Reproduction Science 36, 211-225.

Flohr, S.F., Wulster-Radcliffe, M.C., Lewis, G.S., 1999. Technical note: development of a transcervical oocyte recovery procedure for sheep. J Anim Sci 77, 2583-2586.

Halbert, G.W., Dobson, H., Walton, J.S., Buckrell, B.C., 1990. A technique for transcervical intrauterine insemination of ewes. Theriogenology 33, 993-1010.

Hawk, H.W., 1983. Sperm Survival and Transport in the Female Reproductive Tract. Journal of Dairy Science 66, 2645-2660.

Kershaw-Young, C.M., Khalid, M., McGowan, M.R., Pitsillides, A.A., Scaramuzzi, R.J., 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.

Kumaresan, A., Chand, S., Suresh, S., Mohanty, T.K., Prasad, S., Layek, S.S., et al., 2013. Effect of estradiol and cloprostenol combination therapy on expulsion of mummified fetus and subsequent fertility in four crossbred cows. Vet Res Forum 4, 85-89.

Ledger, W.L., Ellwood, D.A., Taylor, M.J., 1983. Cervical softening in late pregnant sheep by infusion of prostaglandin E-2 into a cervical artery. J Reprod Fertil 69, 511-515.

Leethongdee, S., Khalid, M., Bhatti, A., Ponglowhapan, S., Kershaw, C.M., Scaramuzzi, R.J., 2007. The effects of the prostaglandin E analogue Misoprostol and follicle-stimulating hormone on cervical penetrability in ewes during the peri-ovulatory period. Theriogenology 67, 767-777.

Lightfoot, R.J., Salamon, S., 1970. Fertility of ram spermatozoa frozen by the pellet method. I. Transport and viability of spermatozoa within the genital tract of the ewe. J Reprod Fertil 22, 385-398.

Masoudi, R., Kohram, H., Shahne, A.Z., Davoud, S.D.M.A., 2012a. Effect of estradiol and oxytocin on ovine cervical relaxation. African J Biotechnol 11, 2803-2806

Masoudi, R., Kohram, H., Shahne, A.Z., Davoud, S.D.M.A., Sharif, A.A., 2012b. Effects of exogenous oxytocin on cervical penetration of Iranian ewes. African J Biotechnol 11, 2398-2401.

Mitchell, S.E., Robinson, J.J., King, M.E., McKelvey, W.A., Williams, L.M., 2002. Interleukin 8 in the cervix of non-pregnant ewes. Reproduction 124, 409-416.

Mylne, M.J., McKelvey, W.A., Fernie, K., Matthews, K., 1992. Use of a transcervical technique for embryo recovery in sheep. Vet Rec 130, 450-451.

Perry, K., Haresign, W., Wathes, D.C., Khalid, M., 2010. Intracervical application of hyaluronan improves cervical relaxation in the ewe. Theriogenology 74, 1685-1690.

Sayre, B.L., Lewis, G.S., 1997. Fertility and ovum fertilization rate after laparoscopic or transcervical intrauterine artificial insemination of oxytocin-treated ewes. Theriogenology 48, 267-275.

Shemesh, M., Dombrovski, L., Gurevich, M., Shore, L.S., Fuchs, A.-R., Fields, M.J., 1997. Regulation of bovine cervical secretion of prostaglandins and synthesis of cyclooxygenase by oxytocin. Reproduction, Fertility and Development 9, 525-530.

Stellflug, J.N., Wulster-Radcliffe, M.C., Hensley, E.L., Cowardin, E.A., Seals, R.C., Lewis, G.S., 2001. Oxytocin-induced cervical dilation and cervical manipulation in sheep: effects on laparoscopic artificial insemination. J Anim Sci 79, 568-573.

Stys, S.J., Dresser, B.L., Otte, T.E., Clark, K.E., 1981. Effect of prostaglandin on cervical compliance in pregnant ewes. American Journal of Obstetrics & Gynecology 140, 415-419.

Torres, S., Sevellec, C., 1987. Repeated superovulation and surgical recovery of embryos in the ewe. Reprod. Nutr. Dévelop. 27, 859-863.

Viudes-de-Castro, M.P., Salvador, I., Marco-Jimenez, F., Gomez, E.A., Silvestre, M.A., 2009. Effect of oxytocin treatment on artificial insemination with frozen-thawed semen in Murciano-Granadina goats. Reprod Domest Anim 44, 576-579.

Wulster-Radcliffe, M.C., Lewis, G.S., 2002. Development of a new transcervical artificial insemination method for sheep: effects of a new transcervical artificial insemination catheter and traversing the cervix on semen quality and fertility. Theriogenology 58, 1361-1371.

Wulster-Radcliffe, M.C., Wang, S., Lewis, G.S., 2004. Transcervical artificial insemination in sheep: effects of a new transcervical artificial insemination instrument and traversing the cervix on pregnancy and lambing rates. Theriogenology 62, 990-1002.