4Spencer G S G,Hallett K G and Fadlalla A M.A novel approach to growth promotion using auto immunization against somatostatin.Ⅲeffects in a commercial breed of sheep[J].Livest Prod Sci,1985,13:43-52.
5Galbraith H,Wigzell S,Scaife J R and Henderson G D.Growth and metabolic response of rapidly growing male castrate lambs to immunization against somatostatin[J].Anim Prod,1985,40:523.
6Mears G J.Immunization of lambs against somatostatin to improve growth rate[J].Can J Anim Sci,1990,70(4):1091-1097.