1. Atashi, H. and J. Izadifar. 2012. Estimation of Individual Heterosis for Lamb Growth in Ghezal and Mehraban Sheep. Iranian Journal of Applied Animal Science, 2(2): 127-130.
2. Cloete, J.J.E., S.W.P. Cloete, J.J. Olivier and L.C. Hoffman. 2007. Terminal crossbreeding of Dorper ewes to Ile de France, Merino Landsheep and SA Mutton Merino sires: Ewe production and lamb performance. Small Ruminant Research, 69: 28-35. [
DOI:10.1016/j.smallrumres.2005.12.005]
3. El Fadili, M., C. Michaux, J. Detilleux and P.L. Leroy. 2001. Evaluation of fattening performances and carcass characteristics of purebred, first and second cross lambs between Moroccan Timahdite, D'man and improved meat rams. Animal Science, 72: 251-257. [
DOI:10.1017/S1357729800055740]
4. Esmailizadeh, A.K., S.R. Miraei-Ashtiani, M.S. Mokhtari and M. Asadi Fozi. 2011. Growth Performance of Crossbred Lambs and Productivity of Kurdi Ewes as Affected by the Sire Breed under Extensive Production System. Journal of Agricultural Science and Technology, 13: 701-708.
5. Godfrey, R.W. and A.J. Weis. 2005. Post-weaning growth and carcass traits of St. Croix White and Dorper × St. Croix White lambs fed a concentrate diet in the US Virgin Ilands. Sheep and Goat Research, 20: 32-36.
6. Gokdal, O., H. Ulker, F. Karakus, F. Cengiz, C. Temur and H. Handil. 2004. Growth, feedlot performance and carcass characteristics of Karakas and crossbred lambs (F1) (Ile de France x Akkaraman (G1) x Karakas) under rural farm conditions in Turkey. SouthAfrican Journal ofAnimal Science, 34 (4): 223-232.
7. Gutierrez, J., M.S. Rubio and R.D. Me ́ndez. 2005. Effects of crossbreeding Mexican Pelibuey sheep with Rambouillet and Suffolk on carcass traits. Meat Science, 70: 1-5. [
DOI:10.1016/j.meatsci.2004.10.017]
8. Kashan, N.E.J., G.H. Manafi Azar, A. Afzalzadeh and A. Salehi. 2005. Growth performance and carcass quality of fattening lambs from fat-tailed and tailed sheep breeds. Small Ruminant Research, 60: 267-271. [
DOI:10.1016/j.smallrumres.2005.01.001]
9. Kiyanzad, M.R. 2002. Cross breeding of three Iranian sheep with respect to reproductive, growth and carcass characteristics. Ph.D. Thesis. University of Putra Malaysia.
10. Khaldari, M. and H. Ghiasi. 2018. Effect of crossbreeding on growth, feed efficiency, carcass characteristics and sensory traits of lambs from Lori-Bakhtiari and Romanov breeds. Livestock Science, 214: 18-24. [
DOI:10.1016/j.livsci.2018.05.004]
11. Momani Shaker, M., A.Y. Abdullah, R.T. Kridli, I. Sada and R. Sovjak. 2002. Effect of crossing indigenous Awassi sheep breed with mutton and proliÞc sire breeds on growth performance of lambs in subtropical region. Czech Journal of Animal Science, 47(6): 247-252.
12. National Research Council. 2007. Nutrient Requirements of Small Ruminants: Sheep, Goats, Cervids, and New World Camelids. The National Academeis Press.
13. Phillips, W.A., M.A. Brown, H.G. Dolezal and G.Q. Fitch. 2005. Feedlot performance and carcass characteristics of lambs sired by Texel, Romanov, St. Croix or Dorset rams from Polypay and St. Croix ewes. University of Nebraska - Lincoln. Sheep & Goat Research Journal, 20: 11-16.
14. Saatchi, M. 2004. Comparison of performance of growth and breeding traits of purebred and crossbreed lambs. Proceedings of the First Congress of Animal and Aquatic Sciences of the country. (In Persian).
15. SAS Institute Inc. 2009. SAS/STAT User's Guide, Version 9.2. SAS Institute Inc., Cary, NC.
16. Seyedsharifi, R. and A. Hamzehzadeh Azar. 2016. Evaluation of slaughtered lambs results from Varamini ewes crossing with Shal, Afshar, Moghani and Varamini rams. Iranian Journal of Animal Science Research, 8(1): 174-184. (In Persian).
17. Statistical Center of Iran. 2019. Statistical results of measuring the number and production of livestock.
18. Talebi, M.A. and Gholamhosan, K. 2017. Growth and Feedlot Performance of Lori-Bakhtiari, Romanov × Lori-Bakhtiari and Pakistani × Lori-Bakhtiari Crossbred Lambs. Research on Animal Production, 8(17): 201-208 (In Persian). [
DOI:10.29252/rap.8.17.201]
19. Tekel, N., I. Baritci, H.D. Sireli, M. Tutkun, E. Eyduran and M.M. Tariq. 2020. Determination of Fattening Performance and Carcass Characteristics of Awassi × (Romanov × Awassi) G1 Hybrid Male Lambs. Pakistan Journal of Zoology, 52(2): 753-758. [
DOI:10.17582/journal.pjz/20181017161047]
20. Turkyilmaz, D. and N. Esenbuga. 2019. Increasing the productivity of Morkaraman sheep through crossbreeding with prolific Romanov sheep under semi-intensive production systems. South African Journal of Animal Science, 49(1): 185-191. [
DOI:10.4314/sajas.v49i1.21]
21. Vatankhah, M. and S. Zakizadeh. 2020. Review on crossbreeding in Iranian sheep. Journal of animal science, 127: 165-176. (In Persian).