Fattyacidomics and minerals: profiling the effects of recombinant bovine somatotropin on milk composition

Abstract

The aim of this study was profiling the measurable effects or recombinant bovine somatotropin (rbST) on the nutritional properties of milk. A group of cows was treated with this peptide hormone and milk samples were collected for their analysis. The implementation of univariate and multivariate statistics showed a tendency towards a less saturated fatty-acidome in the milk collected from animals treated with rbST, with higher concentrations of omega-6 and monounsaturated fatty acids. In addition, less calcium and protein content and more potassium was observed in milk from treated animals, in comparison to control population. Thanks to this multi-component profiling of milk, a clear impact of somatotropin treatment on milk qualities was observed