10 



BULLETIN 413, XJ. S. DEPARTMElirT OP AGEICULTTJRE. 



Table V. — Influence of age on values of dairy cows, shown in per cent of maximum value. 

 (Averages of 1,844 estimates by owners, hosed on arbitrary valu£s assumed for a certain 

 fixed age.) 



Age. 



Grade cows worth S80 at 3 years of age. 



Grade cows worth SlOO at 3 years of age. 



Holstein. 



Guernsey 



Jersey. 



Ayrshire. 



Holstein. 



Guernsey. 



Jersey, 



Ayrshire. 



Birth 



Per cent. 

 10 

 24 

 38 

 60 

 78 

 89 

 98 

 100 

 97 

 91 

 82 

 74 

 66 

 59 

 51 

 43 



Per cent. 

 11 

 24 

 40 

 62 

 81 

 92 

 100 

 100 

 97 

 91 

 83 

 74 

 65 

 56 

 48 

 42 



Per cent. 

 11 



24 

 38 

 62 

 87 

 94 

 98 

 100 

 98 

 94 

 82 

 77 

 66 

 56 

 47 

 39 



Per cent. 

 9 

 20 

 36 

 57 

 81 

 88 

 96 

 100 

 99 

 95 

 90 

 79 

 71 

 62 

 52 

 45 



Per cent. 

 9 

 21 

 36 

 59 

 82 

 92 

 98 

 100 

 95 

 88 

 78 

 68 

 59 

 51 

 47 

 39 



Per cent. 

 10 

 21 

 35 

 57 

 79 

 92 

 99 

 100 

 95 

 87 

 76 

 67 

 56 

 48 

 39 

 32 



Per cent. 

 10 

 21 

 36 

 60 

 83 

 92 

 98 

 100 

 98 

 93 

 84 

 74 

 64 

 53 

 43 

 34 



Per cent. 

 10 



6 months 



21 





35 





59 





81 





90 





97 





100 



7 years 



8 years 



98 

 94 





86 





77 





67 





69 





50 





41 







Number of esti- 

 mates 



107 



101 



144 



137 



159 



103 



134 



141 



Age. 



Purebred cows worth S200 at 3 years 

 of age. 



Holstein. 



Guernsey. 



Jersey. 



Ayrshire. 



Purebred cows worth S300 at 3 years 

 of age. 



Holstein. 



Guernsey. 



Jersey. 



Ayrshire. 



Birth 



6 months 



1 year 



2 years 



3 years 



4 years 



5 years 



6 years 



7 years 



8 years 



9 years 



10 years 



11 years 



12 years 



13 years 



14 years 



Number of esti- 

 mates. ....... 



Per cent. 

 24 

 34 

 46 

 62 

 78 

 91 

 98 

 100 

 96 

 89 

 80 

 69 

 59 

 50 

 41 

 32 



Per cent. 

 22 

 33 

 45 

 63 

 78 

 90 

 98 

 100 

 96 

 89 

 79 

 70 

 69 

 49 

 39 

 30 



Per cent. 

 18 

 27 

 41 

 61 

 80 

 91 

 98 

 100 



Per cent. 

 17 

 27 

 39 

 57 

 76 

 88 

 97 

 100 

 98 

 93 

 85 

 75 

 63 

 51 

 39 

 30 



Per cent. 

 26 

 36 

 48 

 66 

 86 

 94 

 99 

 100 

 95 

 87 

 76 

 64 

 56 

 45 

 35 

 27 



Per cent. 

 23 



34 



95 

 100 



Per cent. 

 17 

 25 

 38 

 59 

 85 

 94 

 99 

 100 

 94 

 87 

 76 

 63 

 61 

 40 

 30 

 21 



Per cent. 

 18 

 27 

 38 

 58 

 82 

 91 

 97 

 100 

 97 

 91 

 81 

 68 

 67 

 46 

 35 

 24 



137 



Table V is a percentage table based on the data given in the pre- 

 ceding tables. It is believed that within reasonable limits the per 

 cent columns will be found useful in estimating the values of other 

 classes of dairy cows. For example, the per cent column foi* the 

 cow worth S80 at 3 years of age should be approximately accurate 

 for the cow worth $70 at 3 years of age, and the per cent column for 

 the cow worth $100 at 3 years of age should be approximately accu- 

 rate for the cow worth $110 at 3 years of age. On the other hand, 

 the per cent column for the purebred cow worth $300 at 3 years of 

 age, could not very well be applied to cows valued at twice the 

 amount at that age. 



