The effect of the age of sire and dam on the quality of offspring in dairy effectofageofsir00alle Year: 1922 Allen: Effecf of Parents' Age on Quality of Dairy Cows 175 ^ilf* â â '~^: .*^~--: f A SIRE OF RECORD-MAKING DAUGHTERS Figure 16. King Hengeveld Aaggie Fayne (56635) has shown remarkable ability to tr<insmit production. He was slaughtered when only three years of age and as a result has only 31 A. R. O. daughters. Eleven of these daughters have records in of 30 pounds of butter (80 fat) in 7 days. Four of his daughters have yearly records. Three of these records ma
The effect of the age of sire and dam on the quality of offspring in dairy effectofageofsir00alle Year: 1922 Allen: Effecf of Parents' Age on Quality of Dairy Cows 175 ^ilf* â â '~^: .*^~--: f A SIRE OF RECORD-MAKING DAUGHTERS Figure 16. King Hengeveld Aaggie Fayne (56635) has shown remarkable ability to tr<insmit production. He was slaughtered when only three years of age and as a result has only 31 A. R. O. daughters. Eleven of these daughters have records in of 30 pounds of butter (80 fat) in 7 days. Four of his daughters have yearly records. Three of these records made by two and three year old heifers average 21, pounds of milk and 978,93 pounds of butterfat. The other yearly record was made by a mature daughter and is 15, pounds of milk and pounds of butterfat. King Hengeveld Aaggie Fayne was born when his parents were quite young. His sire was 22 months of age and his dam 28 months of age when he was born. Photo by the Holstein-Fresian World. purposes. An unusually large percent- age of the Superior Class were born before their dams were two and one- half years of age and must have been first calves. The sires of a large per- centage of the Superior Class were also under two and one-half years when the dams were bred. On the other hand, just as large a percentage of the Superior Class as of the Inferior Class is from very old parents. AGE WHEN THE BEST RECORDS ARE MADE Table IV was arranged for the Supe- rior Class only. The best record was used in every case. If any of the cows herein considered have made a better record since the collection of this data this fact introduces an error. It is recognized that only a very few cows have ever made more than one Table IV. The Average Age of All the Superior Cows at the Time Their Records Were Made Group I Group II Group III Superior Class Number of Cows Average Age in 86 121 404 611
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