Predicting 305-Day Yields from Short-Time Records

One of the great difficulties confronting dairymen when purchasing cows is the lack of information about their producing ability. Without production records dependence is placed only on the visible characters of the animals. The relationship of these characters to production and the ability of men to estimate production from type have been examined (2). The discrepancies between the actual yields of milk and fat and the estimates generally have been large.