The Precision of Some Sampling Methods of Estimating the Milk, Butterf at, Solids Not Fat, and Crude Protein Yield of Dairy Cows

Abstract

Accurate production records are an important factor for the improvement of dairy cows, If it were possible to have for each day of lactation, figures for the yield of milk and the percentage of its constituents, the estimation of actual lactation yields would be precise; but in practice this is not possible, since for a widespread use of tests the costs of testing must be held low. So