2Hoschele I and Meinert T R. Association of genetics defects with yield and type traits: the weaver locus effect on yield [J]. J Dairy Sci, 1990, 73:2503-2513.
3Taylor J F. Report of the workshop on the genetic map of bovine chromosomel [J]. Animal Genetics, 1998, 29:228-235.
4Sembrook J. Molecular Clongiong ( Second edition )[ M ] . New York:Cold Sping Habor Laboratory, 1989: 463-473.
5EPARD P J,HUDSON S,COLE W J,et al. Response of dairy cows to high doses of a sustained- release bovine somatotropin administered during two lactations[J].J Dairy Sci,1991,74:3 807- 3 821.
6DALE E B. Bovine Somatotropin: Review of an emerging animal technology[J].J Dairy Sci,1992,75:3 432- 3 451.
7Food and Drug Administration.FDA Statement[S].Fed Reg,1994,62:33 362- 33 385.
8GULAY M S,HAYEN M J,TELXELRA L C,et al. Responses of holstein cows to a low dose of somatotropin prepartum and postpartum[J]. J Dairy Sci,2003,86:3 195- 3 205.
9BURRIN D G,DAVIS T A,FIOROTTO M L,et al. Role of milk- borne vs.endogenous insulin- like growth factor I in neonatal growth[J].J Anim Sci,1997,75:2 739- 2 743.
10PROSSER C G.Increased secretion of insulin- like growth factor I into milk of cows treated with recombinantly derived bovine growth hormone[J].J Dairy Res,1989,56:17- 26.
