172 



UNIVERSITY OF COLORADO STUDIES 



several of these samples were taken in comparatively warm weather, 

 when perhaps the same care in cooling would not be observed as is 

 the case in the smnmer. Of these twenty-six samples eleven are 

 below the requirements in butter fat (3 . 5 per cent). 



CHART II 

 Samples Showing an Initial Count of 100,000 or Less 



Sample No. 



Pro- 

 ducer 

 No. 



Date 



Hours 



after 



Milking 



Summer* 



Winter 



Acid 



Butter Fat 

 Percentage 



23- 

 24. 

 27. 

 29. 

 30. 

 32. 

 33- 

 34- 

 36. 

 37- 

 38. 

 39- 

 40. 

 41. 

 42. 

 43- 

 44- 

 45- 

 46. 



47- 

 48. 



49- 

 SO. 

 SI- 

 52. 

 53- 



14 



14 



24 



8 



15 



24 



8 



6 



II 



10 



24 

 8 

 16 

 17 

 14 



20 



19 

 6 

 20 

 21 

 6 

 22 

 23 

 19 



8/21/10 



8/21/10 



10/ 8/10 



10/22/10 



10/22/10 



11/19/10 



10/20/10 



1/19/1 



1/21/1 



1/23/1 



1/27/1 



1/28/1 



2/ 4/1 



2/ 4/1 



2/ 7/1 



2/11/1 



2/11/1 



2/13/1 

 2/24/1 

 2/25/1 

 3/ 3/1 

 3/ 3/1 

 3/4/1 

 3/ 7/1 

 3/10/1 

 3/10/1 



6 



5 

 6 



5 

 5 

 6 



4 

 5 

 5 

 5 

 6 



5 

 5 

 4 

 9 

 5 

 5 

 5 

 12 



5 



14 

 4 

 5 

 3 

 6 



28,625 

 44,000 



8,750 

 55,020 

 36,750 



4,850 



17,525 



14,200 

 4,930 

 6,835 

 1,080 

 7,960 



26,670 

 2,650 



12,920 

 9,300 

 7,300 



15,100 

 6,100 



10,366 



39,075 

 870 

 16,833 

 16,850 

 12,250 

 3,733 



13 

 12 

 10 

 10 

 II 

 12 



10 

 II 



13 



10 

 10 



13 

 13 

 14 



13 

 14 

 12 



* All samples in this set taken before October i are classed as summer samples; all those after October 

 I as winter samples. 



The data obtained in the examination of the five samples having 

 an initial count of over 100,000 are shown in Chart III. It is of 

 interest that only Sample No. 35 meets the legal requirements in 

 butter fat. Samples Nos. 25 and 28 are from the same dairy (from this 

 dairy was also obtained Sample No. 14, First PreHminary Report, 

 which showed a bacterial content of 2,790,000). Compare this with 

 Chart II. 



