2Falaki M,Gengler N,Sneyers M,et al. Relationships of Polymorphisms of growth hormone and growth hormone receptor genes with milk Production traits of ItalianHolstcin-Fricsian bulls [J].Dairy Sci, 1996,79:1446-1453.
8Rincond.C. Lopez-Herrera,A. EcheverriJd. Effect of two single nucleofide polymorphisms on milk yield and composition [J]. Genetics and Molecular Research, 2013,12(2):995-1004.
9Lucy M C. Variants of somatotropin in cattle :gene frequen- cies in major dairy breeds and associated milk production(JJ.Do- mestics Animal Endocrinology, 1993,10(40) :325-333.
10Dario, C. Camicella, D. Ciotola, F. Peretti, V. Bufano, G. Polymorphism of growth hormone GH1-AIu I in Jersey cows and its effect on milk yield and composition {J3. Asian-Australasian Journal of Animal Sciences, 2008,21 (1): 1 -5.
9ARGETSINGER L S, CARTER-SU C. Mechanism of signaling by growth hormone receptor[J]. Physiol Rev, 1996,76(4):1089-1107.
10GEORGES M, NIELSEN D, MACKINNON M, et al. Mapping quantitative trait loci controlling milk pro duetion in dairy cattle by exploiting progeny testing [J]. Genetics, 1995,139(2) : 907-920.