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Show HOW TO SELECT DAIRY COWS The Utah Agricultural Experiment Station is distributing a news circular cir-cular on the selection of dairy cows in which the importance of performance perform-ance is strongly emphasized. George j Q. Bateman, superintendent of the I dairy experimental farm, is the au-j au-j thor of this publication. Three aged grade dairy cows are chosen as types upon which accurate accu-rate records were kept as to the amount of feed consumed, the returns re-turns in milk and butterfat. the feed I cost per hundredweight of milk and per pound of fat. and the amount returned for each dollar expended for feed. These records were kept during a total lactation period from freshening date to freshening date. One cow, cow E-10, returned Sl-45 for each dollar expended hi her feed; another, cow E-ll, returned $1.92 for each dollar expended in he'r feed; cow E-13 returned $1.63 for each dollar dol-lar expended in her feed. The record rec-ord of cow E-ll shows that she pro- duced each pound of butterfat for .084 cent less than cow E-10 and for .046 cent less than cow E-13. Cow E-ll, therefore, is 32.4 per cent more economical or efficient than cow E-10 and 17 per cent more economical than cow E-13. It would take 2.6 cows like cow E-10 to make as much profit as cow E-ll made alone and they would eat 2.6 times as much feed as she did. With seven cows like cow E-ll, approximately approxi-mately all the feed consumed could be produced on 20 acres of land, with a profit of $1099 above feed cost. To realize this profit with cows like E-18 would require 18.2 cows, and 52 acres of land would be needed to produce the required feed. Copies of this 8-page circular (No. 75) are now available for distribution distribu-tion and will be sent without charge to those requesting a copy. Address Division of Publications, Utah Experiment Experi-ment Station, Logan, Utah. |