Show PUREBRED SIRES HELP HERDS dairyman cannot expect to obtain improved results from new bull in the first year yar prepared by the united states slate department t of agriculture the production or of the dairy herds of the fill future ure through the use of proper sires hires of high quality Is a subject that is interesting dairy specialists ot of the clr united states department of 0 agriculture ture there Is ample evidence that buch bulls improve the production of their daughters but it la Is a difficult dilli cult nutter matter even to estimate what hat the limit la a improvement in ia future generations will be figures coni compiled piled by the field man of the dairy division of the department who la Is encouraging bull associations in maryland show the improvement in production made by daughters of purebred sires belon belonging ing to the naw windsor bull association as compared with their dams the sll six daughters of reposes masher gave an average of pounds of milk la in a year and 38 32 pounds of butterfat the average of the dams of these young cows was pounds ot of milk arid ard pounds of fut the average increase therefore was 1415 coundi of wilk milk and CO 60 pounds of fat an additional production of over 1400 pounds of milk and CA pounds of fat is no slight matter the dairy specialists say the ages at which the daughters of R reposes ala her made their records record zt were three four and five years the a storage being about four when farmers put in purebred bulls to replace scrub i or grades they sometimes have the feeling that the presence of the new bull Is a charm which will increase the production of the tha herd right away say the dairy specialists cia lists listi this Is not to be expected the cows which are bred to the bull i 7 4 influence of purebred bull Is I 1 shown only on his hi offspring are not themselves affected in their nature or their milk producing ability the influence of the bull Is shown only on his offspring it takes about tour four years before the first heifers from a new bull finish their first years test and as they are am then only li hei elfers fers their mature mothers may still outdo them in production the thing to be considered is what character of young cows are to replace the old ones when the latter are gone this Is 13 the principle involved in bringing in meritorious bulls to make the file future cows better than the present A dairyman should wt not expect to see the good results from a purebred bull in tho the first year but wait ault three to five years and then see how much better his herd Is the dairyman should look to the future and plan now by using a good purebred bull to have a better herd in from three to five years the question 1 when these wars years have passed will he be where lie he was three to five years earlier or will he be better oft off tho the wise dairyman who takes the right course now will at that future time lind find himself reaping the benefit |