1. Ansari-lari, M., M. Mohebbi-fani and A. Rowshan-ghasrodashti. 2012. Causes of culling in dairy cows and its relation to age at culling and interval from calving in Shiraz, Southern Iran. Journal of Veterinary Research Forum, 3(4): 233-237.
2. Bakhshoodeh, M., S.A. Seyed Salehi and M. Mohebbi Fani. 2012. Optimal replacement strategy for dairy cows with diverse production capacities in Fars province Journal of Development and Agricultural Economics, 26(3): 176-182 (In Persian).
3. Bertsekas, D.P. 2001. Dynamic Programming and Optimal Control. Vol. 2: Dynamic Programming. 2nd ed. Athena Scientific, Belmont, MA.
4. Boichard, D.I. 1990. Estimation of the economic value of conception rate in dairy cattle. Journal of Livestock Production Science, 24: 187-204. [
DOI:10.1016/0301-6226(90)90001-M]
5. Cardoso, V.L., J.R. Nogueria and J. VanArendonk. 1999. Optimal replacement and insemination policies for Holstein cattle in the southeastern region of Brazil. The effect of selling animals for production. Journal of Dairy Science, 82(7): 1449-1458. [
DOI:10.3168/jds.S0022-0302(99)75372-5]
6. Dekkers, J. 1991. Estimation of economic values for dairy cattle breeding goals: bias due to sub-optimal management policies. Journal of Livestock Production Science, 29: 131-149. [
DOI:10.1016/0301-6226(91)90062-U]
7. De Vries, A. 2006. The Dairy VIP Program to Evaluate the Consequences of Changes in Herd Management and Prices on Dairy Farms. Available at http://edis.ifas.ufl.edu Animal science Department, UF/FAS Extension. page, 1-7.
8. De Vries, A. 2006. Ranking dairy cows for future profitability and culling decisions. Proceeding 3th Florida & Georgia Dairy Road Show.
9. Fetrow, J., K. Nordlund and H. Norman. 2006. Invited review: Culling: nomenclature, definitions, and recommendations. Journal of Dairy Science, 89(6): 1896-905. [
DOI:10.3168/jds.S0022-0302(06)72257-3]
10. Heikkila, A.M. 2008. Optimal replacement policy and economic value of dairy cows with diverse health status and production capacity. Journal of Dairy Science, 91(6): 2342-2352. [
DOI:10.3168/jds.2007-0736]
11. Ljungqvist, L. and T.J .Sargent. 2000. Recursive macroeconomic theory. MIT Press, Cambridge, MA.
12. McCullough, D.A. and M.A. Delorenzo. 1996. Effect of price and management level on optimal replacement and insemination decision. Journal of Dairy Science, 79(2): 242-253. [
DOI:10.3168/jds.S0022-0302(96)76357-9]
13. Miranda, M.J. and P.L. Fackler. 2002. Applied computational economics and finance. MIT Press, Cambridge, MA.
14. Mohdnor, N., W. Stenerld and H. Hogeveen. 2014. The average culling rate of Dutch dairy herds over the years 2007 to 2010 and its association with herd reproduction, performance and health. Journal of Dairy Research, 81(1): 1-8. [
DOI:10.1017/S0022029913000460]
15. Nasr Esfahani, A. 2017. Estimate of sensitivity of economic efficiency for variety in production, reproduction performances and culling rate in dairy herds in Isfahan. Journal of Animal Production, 19(3): 533-543 (In Persian).
16. Russell, C., J.R. Philibrik and P.K. Kitanidis. 2001. Improved dynamic programming methods for optimal control of lumped-parameter stochastic system. Journal of Operation Research, 49(3): 398-412. [
DOI:10.1287/opre.49.3.398.11219]
17. Seyed Sharifi, R., A.A. Shadparvar and N. Ghavi Hossein-Zadeh. 2013. Parameters affecting optimal herd life of Holestein cows in North West of Iran using stochastic dynamic programming. Journal of Animal Production Research, 2(2): 19-27 (In Persian).
18. Van Arendonk, J.A.M. 1984. Studies on the replacement policies in dairy cattle. I. Evaluation of techniques to determine the optimum time for replacement and to rank cows on future profitability. Zeitschrift für Tierziichtung und Züchtungsbiologi, 101: 330-340. [
DOI:10.1111/j.1439-0388.1984.tb00054.x]
19. Varkoohi, S., M. Shilanan, S. Forutani Far and A.R. Eghbal. 2015. Investigation of culling reasons on Holstein Cows in Iran. Journal of Applied Animal Science Research Journal, 14: 93-100 (In Persian).