50 



BULLETIN 642, U. S. DEPARTMENT OF AGRICULTURE. 



Table 22. — Groivth of bacteria in milk produced under conditions 2 when held 

 at 44°, 10°, and 15.5° C. (40°, 50°, and 60° F.)— Continued. 



Sample No. 



Temper- F h 

 ature. 



24 hours. 



48 hours. 



72 hours. 



96 hours. 



15.5° C. 

 (60° F.) 



Average. 



10.600 



8,100 



13,900 



165,000 



240,000 



85,000 



65.000 



121,000 



16. .500 



19,600 



69,000 



66,000 



53,000 



8,900 



16, 100 



4,100 



65,000 



4,300 



5,600 



10,800 



26,900 



29,800 



14,600 



19,700 



78,000 



3,200 



7,500 



7,200 



17,700 



31,000 



6,100 



10,200 



8,400 



23,000 



1,100,000 

 2,100,000 



7,200,000 

 4,400,000 

 3,080,000 

 720,000 

 8,900,000 

 14,800,000 



" "1,876,666* 



6,400.000 

 2,4O0;0O0 

 4,500,000 

 1,200,000 

 1,700,000 



" 3," 6o6," 666" 

 "6,166,666" 



17,700,000 

 5,200,000 

 140.000 

 5,300,000 

 2,150,000 

 2,100,000 



1,190,000 

 3,300,000 

 3,300,000 

 5,100,000, 



35,300,000 



9,600,000 



126,000,000 

 112,000,000 

 366,000,000 

 339,000,000 

 53,200,000 

 33,400,000 

 203,000,000 



190,000,000 

 22,800,000 

 226,000,000 

 152,000,000 



"ii*6o6,'666" 



"*8" 200," 666" 



"12" 606,666" 

 22,000.000 



61,000,000 

 34,600,000 

 9,700,000 

 19,300.000 

 158,000,000 



84.000.000 

 19,500,000 

 164,000,000 

 177,000,000 



92,000,000 



390,000,000 

 1,630,000,000 

 3,470,000,000 

 2,280,000,000 



108,000,000 

 670,000,000 



270,000,000 



210,000,000 



1,200,000,000 



560,000,000 



630,000,000 



"42," 666," 666' 



180.000,000 

 190,000,000 

 340,000,000 

 524,000,000 



45,000,000 

 520,000,000 



180,000,000 

 320,000,000 

 140,000,000 

 490, 000; 000 



660,000,000 



39,082 



4,461,111 



99,120,000 



142,000,000 



990,000,000 

 2,610,000,000 

 1,820,000,000 

 2,320,000,000 



1,370,000,000 



980,000,000 



"2,"676,"666,"666 



830,000,000 



5,500,000,000 



135,000,000 



1,280,000,000 



1,340,000,000 



970,000,000 



376,000,000 



690, 000, 000 



1,210,000,000 

 600,000,000 

 780,000,000 



340,000,000 

 1,590,000,000 



633,375,000 1,355,650,000 



Table 23. — Ratio of bacterial groirtli in milk produced under condition 2 iclien 

 held at 44°, 10°, and 15.5° C. (40°, 50°, and 60° F.I. 



Sample Xo. 



Temper- 

 ature. 



Fresh. 



24 hours. 



48 hours. 



72 hours. 



96 hours. 



1 



4.4° C. 1 

 ' (40' F.) 



f 1 



1.8 





47.9 



2 





1.7 



1.8 





3 



1.1 



2.5 



4 



1.1 



1.5 

 2.2 



18.7 

 6.3 



4 





1.5 



2 



6 ":: 



3.5 

 3.6 

 7.3 

 1.8 

 2 

 10 

 1.1 



36.7 





4.6 



8 



1.2 



1.8 



6.5 





8 - 





9 



2.2 



1.2 



1.6 



16 .: 





ii 



221.7 



12 



1.5 

 8.8 

 2.7 

 1.7 



2.4 



13 



3.7 

 1.9 

 2.1 

 2 



1.3 



11.7 



14 



15 



1.3 

 



1 Q 



3.2 



16 







if::::::::::::::::::::::::::::::::::::: 1 



18 



1 1.3 



1 1.1 

 1 n 



3.3 



27.6 

 8.8 



2.1 





20 











2.9 



21 



1.1 



1.7 

 2.6 



24.3 

 5.4 



' 2.5 





2.5 

 25.4 

 7.1 

 2.2 

 



2.9 

 3.6 





23 



7.6 



7.8 



24 



1 4 

 1 1.3 

 1 

 1 1.9 





25 





26 





 1.9 







27 





28 



1 



3.2 



2.5 



30.5 



29 



3.3 



1.2 

 2.8 

 1.9 





30 



2.2 

 2.9 

 1.8 

 1.3 



1.1 



31 



3.3 







1.2 



2.5 



2.2 



32 





33 



34 







2.1 



2.5 





2.4 



3.8 



4.4 



22.1 



