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Pedigree Analysis as a Basis of Selecting Bull Calves

Register of Merit Department, American Jersey Cattle Club, New York City

ABSTRACT

1. In studying the ancestry of a bull calf the records of the sire's daughters are considerably more valuable than is the record of the dam alone.
   
2. On the evidence submitted, the records of the daughters of the maternal grandsire are more closely related to the production of the grandsons' daughters than are the records of the daughters of the paternal grandsire.
   
3. It would appear that if a cow has a production record herself and if she has two or more tested daughters and if in turn her sire has a number of tested daughters, the sum of this information gives a good index of her germinal composition. This combined information is necessary to accurately evaluate a cow's transmitting ability.
   
4. The selection of a calf with a pedigree as follows should reduce to a minimum the element of chance involved. A large majority of young bulls with such pedigrees should sire high producing daughters, particularly if bred to cows possessing an average inheritance of production.