Lymph vessels route lymph fluid through nodes throughout the body. Lymph nodes are small structures that work as filters for harmful substances. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid.
Discontinuing the use of rbST will entitle the farm to an additional over-order premium. Michigan cooperatives were given a commitment for a 75 cent/hundredweight (cwt) premium to provide rbST-free milk for the Class I market for a 1-year period. This money will be part of the over-order premium.
One hormone, recombinant bovine somatotropin, or rBST, is given to about 20% of dairy cattle in the United States, having unknown effects on individuals who consume their milk. rBST milk is chemically and nutritionally different than natural milk. 2  Milk from cows injected with rBST is contaminated with the hormone, traces of which are absorbed through the gut into the blood of people who consume this milk or products made from it.