DAIRY FARMING DAIRYING. 



485 



(see p. 472) were compared with common hay ("English hay"). A con- 

 stant basal ration of wheat bran, Chicago gluten meal, and corn silage 

 was fed, and in addition to this 10 to 12 lbs. of salt or English hay was 

 fed. About 1 lb. more of salt hay was fed than of common hay, as 

 the former contained from 6 to 8 per cent more water. The periods 

 lasted from 14 to 17 days, with preliminary periods of 5 or 7 days inter- 

 vening. The results are tabulated in detail, and analyses are given of 

 the feeding stuffs used and of the milk of individual cows. 



A summary of the results, with the averages for the salt hays and 

 for English hay, is shown in the following table: 



Summary of results of feeding salt-marsh hays to cows. 



Basal ration and- 



Aver- 



age 



amount 



fed per 



cow. 



Lbs. 



/Black-grass hay 12. 77 



\English hay 11.83 



/ Fox-grass hav 12. 50 



I English hav." 11. 60 



/Branch grass 10. 33 



i English hav 9.33 



fRedtop variety 11.00 



lEnglish hay 10. UU 



(Cove mixture 11. 17 



\ English hay I 10. 17 



(Salt hav mixture , 10. 7.5 



\Englisli hay 0.75 



Average for salt hays 6 11. 50 



Average for English hay i 10.54 



Dry 

 matter 



Lbs. 



22. 23 

 21.90 



23. 40 



23. 10 



21. 2G 

 21.36 

 21.95 

 21.27 



24. 60 

 21.42 



22. 09 

 21.75 

 22.12 

 21.91 



Diges- 

 tible 

 protein 



Lbs. 

 2.22 

 2.14 

 2.39 

 2.26 

 2.05 

 2.05 

 2.05 

 2.16 

 2.13 

 2.09 

 2.01 

 2. 16 

 2.16 

 2.14 



Average yield 

 of— 



Milk. 



But- 

 ter, a 



Us. 



19. 50 

 2H.40 



24. ,-0 



25. 20 

 24. 70 



26. 00 

 15.90 

 17.46 

 IS. 71 

 19.35 

 23. 00 



•23. 40 

 cl 1,361 



Lbs. 

 1.11 

 1.18 

 1.16 

 1.21 

 1.16 

 1.13 

 1.00 

 1.07 

 1.08 

 1.07 

 1.17 

 1.21 

 c499. 6 



A verage cost 

 of— 



Milk 



per 



quart. 



ell, 778 c521.8 



Cents. 

 1.84 

 2.22 

 1.54 



1.87 

 1.45 

 1.04 

 2.23 

 2.46 

 1.91 

 2.23 

 1.58 

 1. 86 

 1.66 

 1.96 



Butter 



per 

 pound. 



Cents. 

 15.00 

 18.00 

 15.26 

 18.08 

 14.50 

 10. 12 

 16.50 

 18.60 

 15.40 

 18.60 

 14.45 

 16.86 

 15.00 

 17.53 



a Calculated from yield of fat in milk. 



6 ; ' Excluding redtop variety, which is not. strictly speaking 



c Total, instead of average. 



a salt hay. 



The cost of milk and butter production is based on the following 

 prices of feeding stuffs: English hay $18, salt-marsh hay $10, corn 

 silage $3.50, wheat bran $15, and Chicago gluten meal $20 per ton. 



"The salt-hay rations produced from 2 to 5 per cent less milk and hutter than did 

 an equal amount of English hay similarly combined. The variety of redtop was the 

 only exception to this: it yielded 9 per cent less milk and butter. . . . 



"The salt-hay rations produced milk with a trifle less percentage of fat than did the 

 English hay rations. The difference is so slight as to be of no practical importance. 



"Because of the lower market price for salt hays, as compared with English hay, 

 daily rations containing 10 to 12 lbs. of salt hay produced milk and butter from 10 

 to 20 per cent cheaper than rations containing an equal amount of English hay." 



Samples of butter made on English hay, black-grass hay, and fox- 

 grass hay, respectively, were submitted to experts for scoring; and 

 samples of the milk produced on these hays were submitted to different 

 parties. 



"These experiments make clear that the salt hays, when constituting from 30 to 

 40 per cent of the daily ration, did not impart any objectionable odor or llavor to 

 the milk or butter. Flat sage is known to have a somewhat stronger flavor, and 

 had that been fed, it is possible that the results might have been somewhat different.'' 



