摘要：Besides immunochemical approaches, biomolecular studies can be carried out in order to discover a greater number of biological indicators to be exploited for the identification of bovines treated with recombinant somatotropin (rbST). With this aim, we analysed the expression of a number of genes related to the somatotropic axis in leucocytes from rbST treated cows and non-treated animals. Significant differences were observed in the genes IGF-1,IGFBP-1, IGFBP-4 and the I- 5’UTR variant of the GHR gene.
