Baker, R.J. (1974). Selection indexes without economic weights for animal breeding. Canadian Journal of Animal Science. 54(1):1-8.
Bourdon, R.M. (1997). Understanding animal breeding publishes in prentice hall 124-132.
Ehsani Nia, j.,
Moradi Shahrbabak, M.,
Hafezian, S, H.,
Sayad Nejad, M, B. (2011). Crossbreeding effects on milk and fat yields performance of iran population local cattle.
Animal Sciences Journal (Pajouhesh & Sazandegi) Summer (2011), Volume 24, Number 2 (91); Page(S) 27 To 33.
Hailu, A. (2013). Cross breeding effect on milk productivity of Ethiopian indigenous cattle: Challenges and opportunities. Scholarly Journal of Agricultural Science. 3(11): 515-520.
Hassani, S. and Govindaiaih, M.G. (2007). Additive and heterotic effects on production and reproduction in Friesian&Sahiwal crossbreds and optimum Friesian contribution. EAAP.58th Annual Meeting, Dublin, Ireland.
Hazel, L. N. (1943). The genetic analysis for constructing selection indexes. Genetics, 28: 476-490.
Heins, B.J. Hansen, L.B. and Seykora, A.J. (2006). Production of pur Holsteins versus crossbred of Holstein Normandy, montbeliarde, and Scandinavian Red. Journal Dairy science. 89(7): 27804-2799.
Kargo, M. Madsen, P. and Norberg, E. (2012). Short communication: Is crossbreeding only beneficial in herds with low management level. Journal of Dairy Science. 95(2):925-928.
Karin, M. (2007).Wombat- a tool for mixed model analyses in quantitative genetics by restricted maximum likelihood (REML). Journal of Zhejiang University Science. 8(11):815-821.
Kellogg, D.W. Brown, A.H. Johnson, Z.B. Rosenkarns, C.F. and Anschutz, K.S. (2009). A comparison of milk production and milk composition traits for three breeds types of dairy cattle. Journal Animal Sciences. 17: 20-29.
Larry, F. Tranel, N.E. and Lowa, S.E. (2006). Dairy crossbreeding – Deal or no deal. Journal Animal Science. 67:624-632.
Lopez-Villalobos, N. Garrick, D. J. Holmes, C.W. Blair, H.T. and Spelman, R.J. (2000). Effects of selection and crossbreeding strategies on industry profit in the New Zealand dairy industry. Journal Dairy Science. 83:164-172.
Mir Mahdavi Chabok,S.A., A Shad Parvar,A.A.A., Ghorbani, A., Eskandarinasab,M.P. (2007). Estimation of economic weights of milk production, fat percentage, protein percentage and herd life for maximum profit interest using profit equation.
Journal of agricultural science (University Of Tabriz) (
2007), Volume 17, Number 2; Page(s) 145 To 156.
Narain, P. (1990). Statistical genetics. Wiley Eastern limited, new Dehli. 599-604.
Qureshi, M.S. Khan, J.M. Khan, L.H. Chudary, R.A. Ashrf, K.A. and Khan, B.D. (2002). Improvement in economic traits of local through crossbreeding with Holstein Friesian semen. Pakistan Veterinary Journal. 22(1):21-26.
Rohan, P. (2004). Crossbreeding in dairy herds. Queensland the Smart State. Information series-132. 1-4.
Hassani, S., Ardalan Far, M., Zerehdaran, S. and Sayadnejad, M. B. (2012). Determination of optimum Holstein inheritance in crossbred dairy cattle based on combined productive and reproductive traits. Animal Production Research, Vol. 1, No. 1, (2012) (1-7).
Sargolzaei, M. (2000). Pedigree version 1.02, User’s manual. Department of Animal Breeding and Genetics. Animal Science Research Institute, Karaj, Iran.
Schaffer, L.R. Burnside, E.B. Glover, P. and Fatehi, J. (2011). Crossbreeding results in Canadian dairy cattle for production reproduction and conformation. The open Agriculture Journal. 5:68-72.
Sorensen, M.k., Norberg, E., Pedersen, J. and Cheristesen, L.G. (2008). Invited review: Crossbreeding in Dairy Cattle: A Danish perspective. Journal of Dairy Science. 91(11): 4116-4128.
Sudhakar, K., Panneerselvam, S., Thiruvenkadan, A.K., Abraham, J. and Vinodlkumar, G. (2012). Factors effecting milk composition of crossberd dairy cattle in Southern India. International Journal of Food, Agriculture and Veterinary Sciences. 3(1):229-233.
Wang, N. and Vandepitte, W. (1992). Crossbreeding of Holstein Friesian, Brown Swiss and sanga breeds in Zaire. Dairy Science Journal. 56(11): 6426-6427.
)