Abdel-Azim, G., and S. Schnell. (2007). Genetic impacts of using female-sorted semen in commercial and nucleus herds. Journal of Dairy Science. 90:1554–1563.
Alamin, M., Nahar, A., Bhuiyan, AKFH and Feruque M.O. (2007). On farm characterization and present studies of North Bengal Gerry (NBG) cattle in Bangladesh. Agricultures. 40: 55-64.
Andersson, M., Taponen, J., Kommeri, M. and Dahlbom, M. (2006). Pregnancy rates in lactating Holstein–Friesian cows after artificial insemination with sexed sperm. Reproduction in Domestic Animals. 41: 95-97.
Badinga, I., Collier, R.J., Tatcher, W.W. and Wilcox, C. (1985). Effect of climatic and management factors on conception rate of dairy cattle is subtropical environment. Journal of Dairy Science. 68: 78-85.
Chebel, R.C., Guagnini, F.S. Santos, J.E.P., Fetrow, J.P. and Lima J.R. (2010). Sex-sorted semen for dairy heifers: Effects on reproductive and lactational performances. Journal of Dairy Science. 93: 2496-2507.
DeJarnette, J.M., Nebel, R.L. and Marshall, C.E. (2009). Evaluating the success of sex-sorted semen in US dairy herds from on farm records. Theriogenology. 71: 49-58.
DeJarnette, J.M., Nebel, R.L. Marshall, C.E., Moreno, J.F., McCleary, C.R. and Lenz R.W. (2008). Effect of sex-sorted sperm dosage on conception rates in Holstein heifers and lactating cows. Journal of Dairy Science. 91: 1778-1785.
El-Wishy, A.B. (2013). Fertility of Holstein cattle in a subtropical climate of Egypt. Iranian Journal of Applied Animal Science. 3: 45-51.
Ferreira, R.M., Ayres, H., Chiaratti, M.R., Ferraz, M.L. Araujo, A.B. Rodrigues, C.A. Watanabe, Y.E. Vireque, A.A. Joaquim, D.C. Smith, L.C. Meirelles, F.V. and Baruselli, P.S. (2011). The low fertility of repeat breeder cows during summer heat stress is related to a low oocyte competence to develop into blastocysts. Journal of Dairy Science. 94: 2838-2392.
Frijters, A.C.J., Mullaart, E., Roelofs, R.M.G., van Hoorne, R.P., Moreno, J.F., Moreno, O. and Merton, J.S. (2009). What affects fertility of sexed bull semen more, low sperm dosage or the sorting process? Theriogenology. 71: 64–67.
Garner, D.L. (2006). Flow cytometric sexing of mammalian sperm. Theriogenology. 65: 943–957.
Gonzales Reccio, O. and Alenda, R. (2005). Genetic parameters for female fertility traits and fertility index in Spanish dairy cattle. Journal of Dairy Science. 88: 3282-3289.
Gordon, I. (2017). Reproductive Technologies in Farm Animals. CABI Publishing Co. UK.
Healy, A.A., House, J.K. and Thomson, P.C. (2013). Artificial insemination field data on the use of sexed and conventional semen in nulliparous Holstein heifers. Journal of Dairy Science. 96:1905-1914.
Karakaya, E., Yilmazbas-Mecitoglu, G., Keskin, A., Alkan, A., Tasdemir, U., Santos, J.E.P. and Gumen, A. (2014). Fertility in dairy cows after artificial insemination using sex-sorted sperm or conventional semen. Reproduction in domestic animals. 49:333-337.
Khalajzadeh, S., Nejati Javarmi, A. and Mehrabani Yeghaneh, h. (2009). The effect of sex-determined sperm on the genetic progression of Holstein dairy cows in a progeny test program. Journal of Animal Science and Research. 5: 11-24.
Kharrati Koopaei H, Mohammadabadi MR, Ansari Mehyari S, Esmailizadeh AK, Tarang A, Nikbakhti M. (2011). Genetic variation of DGAT1 gene and its association with milk production in Iranian Holstein cattle breed population. Iranian Journal of Animal Science Research 3. 185-192.
Kuhn, M.T., Hutchison, J.L. and Wiggans, G.R. (2006). Characterization of Holstein heifer fertility in the united stat. Journal of Dairy Science. 89: 4907-4920.
Mufti, M.M.R., Alam, M.K., Sarker, M.S., Bostami, A.B.M.R. and Dosm, N.G. (2010). Study on factors affecting the conception rate in Red Chittagony cows. Bangladesh Journal of Animal Science. 39: 52-57.
Nazari, M., Mirza Mohammadi, E., Rashidi, A. (2013). The effect of inbreeding on the production traits of Holstein cows in Qazvin province. Fifth Iranian Congress of Animal Sciences. Isfahan.
Nishida, S., Aziz, M.A. and Suzuki, K. (2006). Modeling number of services per conception of Japanese black cattle by random regression. Journal of Animal Breeding and Genetics. 123: 56-63.
Norman, H.D., Hutchison, J.L. and Miller, R.H. (2010). Use of sexed semen and its effect on conception rate, calf sex, dystocia, and stillbirth of Holsteins in the United States. Journal of Dairy Science. 93: 3880-3890.
Sadeghi-Sefidmazgi, A., Moradi-Shahrebabak, M., Nejati-Javaremi, A., Miraei-Ashtianim, S.R. and Amert, P.R. (2012). Breeding objectives for Holstein dairy cattle in Iran. Journal of Dairy Science. 95: 3406-3418.
Salehi, S., & Zare Shahneh, A., & Sayyadnejad, M., & Abdullahpour, R. (2011). Determination Of Some Effective Factors On Reproductive Performance Of Holstein Cows In West And East Azerbaijan Provinces. Animal Science Researches (Faculty Of Agriculture, University Of Tabriz), 21(1), 117-126.
Santos, J.E.P., Cerri, R.L.A., Ballou, M.A., Higginbotham, G.E. and Kirk, J.H. (2004). Effect of timing of first clinical mastitis occurrence on locational and reproductive performance of Holstein dairy cows. Animal Reproductive Science. 80: 31-45.
SAS Institute. (2004). SAS OnlineDoc 9.1.2. SAS Inst. Inc., Cary, NC.
Schrick, F.N., Hockett, M.E., Saxton, A.M., Lewis, M.J., Dowlen, H.H. and Oliver, S.P. (2001). Influence of subclinical mastitis during early lactation on reproductive performance. Journal of Dairy Science. 84: 1407-1412.
Seidel Jr, G.E. (2003). Economics of selecting for sex: the most important genetic trait. Theriogenology. 59: 585-598.
Seidel Jr, G.E., Schenk, J.L., Herickhoff, L.A., Doyle, S.P., Brink, Z., Green, R.D. and Cran, D.G. (1999). Insemination of heifers with sexed sperm. Theriogenology. 52: 1407–1420.
Smangupta, D. and Nandi, R. (2013). Effect of estradiol, Vitamin A, E and selenium treatment with sexual rest period on recovery rate in cross-bred cow with chronic endometritis. Original Research. 10:106-115.
Van Doormaal, B.J., Kisternaker, G.J. and Miglior, F. (2007). Implementation of reproductive performance genetic evaluations in Canada. Interbull. 37: 129-133.
Van Vleck, L.D. (1981). Potential genetic impact of artificial insemination, sex selection, embryo transfer, cloning, and selfing in dairy cattle. Pages 222–242 in: New Technologies in Animal Breeding. B. G. Brackett and G. E. Seidel Jr., ed. Academic Press, New York, NY.
Zamiri, M.J. (2006). Reproductive physiology. Shiraz University Press, Shiraz, Iran.