How to reduce dependence on animal plasma?

Animal plasma is a unique ingredient in that it invariably increases animal performance, the more under less healthy conditions. Previous research has clearly demonstrated it is the heavy molecular weight fraction of animal plasma, which contains the immunoglobulins, that is largely responsible for improved gastrointestinal health that manifests into enhanced growth, evidenced by higher feed intakes post-weaning. Animal plasma is a unique ingredient in that it invariably increases animal