The March 1984 DHI summary of Kansas Holstein herds shows some
interesting correlations of various feeding, breeding, and management factors to
production (Table 1). The Rolling Herd Average (RBA) is an excellent evaluation of
the efficiency of dairy herds since RHA and income-over-feed-cost are closely
related. Although income-over-feed-cost is not profit, it provides the income for
paying the other costs of producing milk. The goal of every dairy producer should
be to increase the RHA in order to improve profitability.
