| Show w A java raa ls DAIRY HERDS SHOW VALUE OF SYSTEM excellent results traced to operation cooperation co on january 1 1931 according to information received front roni 28 states there were 3 9 active operative cooperative co dairy bull associations in the united states this Is 63 more associations than were reported on january 1 1930 the associations have a total of members who operatively cooperatively co own 1600 purebred pure bred dairy bulls which are bred annually to more than cows one of the important features of these bull associations Is the systematic exchange of bulls bulla every two years making it possible to keep two bulls in service without the necessity of inbreeding until the records of their daughters prove the bulls value at the time the bureau of dairy industry has the records of 84 bull association bulls that have been proved each of these bulls had bad five or more daughters whose yearly milk and butterfat records were compared with the yearly milk and butterfat records of their dams all told tho the records of daughters and dams have been compared the dams to which these sires were mated produced on an average pounds milk containing pounds fat fal the daughters produced on an average pounds milk containing pounds fat the daughters therefore excelled the dams by pounds faunds or 42 per cent in milk production and by 29 pounds or 75 per cent in butterfat production this splendid increase in production of the daughters over inch high producing dams shows that operative cooperative co bull associations are ac the purpose for which they were organized namely the building of better dairy herds hoards heards dairyman |
