Date of this Version
Lawritson, M. N., Hendrickson, J. W., & Nevens, W. B. (1919). Purebred sires effect herd improvement (University of Nebraska Agricultural Experiment Station Circular No. 8)
The real worth of a sire for the dairy herd can be established only when production records of the progeny are available for comparison with those of the preceding generation. A study of the following three sires which have been in service in the University of Nebraska dairy herd should be of interest to the Nebraska dairyman wishing to improve his own herd. This experiment indicates that the apparently high cost of a good herd sire is more than outweighed by the increase in the value of the progeny.