Askari- Hemmat H and Shadparvar A, 2012. Simulation study of effect on genetic gain and genetic lag of nucleus size in an open nucleus breeding scheme. Pp. 1193-1197. The 5th Iranian Congress on Animal Science. Isfahan, Iran.
Bulmer MG, 1971. The effect of selection on genetic variability. American Society of Naturalists 195: 201-211.
Dekkers JCM, Gibson JP, Bijma P and Arendonk AM, 2004. Design and optimization of animal breeding programmes. Pp. 38-60. Iowa State University.
Ebrahemian N, Shadparvar A, Ghavi- Hosseinzade N and Askari-Hemmat H, 2012. Effect of ram transfer rate from nucleus to base population on genetic gain in nucleus breeding system. Pp. 517-521. The 5th Iranian Congress Animal Science. Isfahan, Iran.
Hayes BJ, Bownam PJ, Chamberlain AJ and Goddard ME, 2010. Genomic selection in dairy cattle: Progress and challenges. Dairy Science 92: 433-443.
Hopkins IRand James JW, 1978. Theory of nucleus breeding schemes with overlapping generation. Theoretical and Applied Genetics 53: 17-24.
Jackson N and Turner HN, 1972. Optimal structure for a cooperative nucleus breeding system. Animal Production 9: 55-64.
James JW, 1977. Open nucleus breeding systems. Animal Production 24: 287-305.
Kosgey IS, Baker RL, Udo HMJ, and Van Arendonk JAM, 2006. Successes and failures of small ruminant breeding programmes in the tropics a review. Small Ruminant Research 61: 13-28.
Kosgey IS, and Okeyo AM, 2007. Genetic improvement of small ruminant in low-input, smallholder production systems: technical and infrastructural issues. Small Ruminant Research 70: 76-88.
Mueller JP and James JW, 1983. Effects of reduced variance due to selection in open nucleus breeding system. Agricultural Research 34: 53-62.
Vatankhah M, Moradi- Sharebabak M, Nejati- Javaremi A, Miraei- Ashtiani SR and Vaez-Torshizi R, 2004. A review of sheep breeding in Iran. Pp. 590-596. Proceedings of1thcongress on Animal Science and Country's Aquatic, College of Agriculture & Natural Resources University of Tehran, Iran.
Vatankhah M, 2005. Appropriate Model for Lori Bakhtiari sheep breeding in rural. PhD Thesis, The University of Tehran.
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