Sept. 15, 1919 



Variation in Milk of Ayrshire Cows 



295 



TablB II. — Frequency distributions for variation in percentage of fat in the milk of Ayr- 

 shire cows — Continued 



Fat 

 percentage. 



2-95- 

 3-oS. 

 3-I5. 

 3-25- 

 3-35- 

 3-45- 

 3-55 ■ 

 3-65. 

 3.7S- 

 3-85. 

 3-95 ■ 

 4-05. 

 4.15. 

 4.25- 

 4-35 • 

 4-45 . 

 4-S5- 

 4.6s- 

 4-75- 

 4-95- 

 5-I5- 

 6.25. 



Total. 



4-year-old cows. 



Fre- 

 quen- 

 cy. 



526 



Per- 

 cent- 

 age. 



•38 

 1. 14 

 2.85 

 4-56 

 8. 75 

 9-13 

 II. 22 



10. 6s 



11. 22 

 11.41 



7.41 



6.6s 



4. 18 



3- 80 



1. 14 



•95 



I. 90 



•76 



•38 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



.63 



I. iS 



1-35 



5-41 



5-74 



8-9S 



10.98 



12.84 



13-34 



10.47 



9.46 



4-73 



5-41 



4- OS 



1.86 



I-S2 



I- 01 



•17 



•17 



Combined 

 years. 



Fre- 

 quen- 

 cy. 



S6 

 So 



lOI 



124 

 132 



138 

 122 

 9S 

 63 

 54 

 44 



Per- 

 cent- 

 age. 



•53 



I. 16 



2.06 



5.01 



7-16 



9- 03 



II. 09 



II. 81 



12.34 



10. 91 



8. SO 



5^64 



4-83 



3^94 



1-52 



1-25 



1^43 

 •45 



S-year-old cows. 



1908. 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



3- 09 

 4.99 

 4.28 

 7-36 

 9- 03 

 12-35 

 9. 26 



9^74 



5^46 

 5^46 



Fre- 

 quen- 

 cy. 



per- 

 cent- 

 age. 



1-43 



2. 2S 

 3-69 

 4.92 

 9^63 

 9.02 



13-93 

 12. 70 

 lo. 66 

 9^43 

 8.40 

 4.92 

 2.87 

 1^43 

 1^43 



Combined 

 years. 



Fre- 

 quen- 

 cy. 



82 

 120 

 lol 

 102 

 87 

 74 

 47 

 37 

 23 



Per- 

 cent- 

 age. 



0.44 



•55 



•99 



2. 64 



4. 29 



4. 62 



8.s8 



9. 02 



13- 21 



II- II 



II- 22 



9- 57 



8-14 



5-17 



4.07 



2-53 



I- 21 



.66 



.88 



•77 



•ii 



Fat 

 percentage. 



6-year-old cows. 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



Combined 

 years. 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



7-year-old cows. 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



Fre- 

 quen- 



Per- 

 cent- 

 age. 



Combined 

 years. 



Fre- 

 quen- 

 cy. 



Per- 

 cent- 

 age. 



0.31 



.61 



.61 



.92 



4.89 



5.20 



7^65 



11-31 



13-46 



12-84 



9.48 



9.48 



II. 62 



4.28 



3^37 



1^83 



.61 



.92 



0-63 



.42 



.84 



2.09 



3^98 



7^34 



9-43 



13-00 



II-9S 



11-74 



10-48 



9-43 



7-34 



3^77 



2-94 



1. 26 



1.47 



1.68 



. 21 



Total. 



99 



lOI 



804 



0- so 

 •50 

 -75 



1- 62 

 4-35 

 6-47 

 8- 70 



12-31 

 12-56 

 12.18 

 10-07 

 9-45 

 9.08 

 3^98 

 3-" 



0-3 2 

 2-53 

 4- 1 1 

 6. 33 

 10- 76 

 10- 76 

 12-34 

 11-39 

 12-03 

 9-49 

 6.6<; 

 5^70 

 2-8? 



316 



396 



36 



o- 70 



1-97 



S-OS 



S6a 



9-SS 



10- 3» 



12. SO 



11-94 



11.80 



10- S3 



6-74 



S-90 



2-8x 



2- 25 

 • 84 



•99 

 .14 



