. Bulletin of the Department of Agriculture. Agriculture; Agriculture -- United States. 40 BULLETIN 642, U. S. DEPARTMENT OF AGRICULTURE. sterilizer was demonstrated to the farmers, who were then left to operate it without further assistance. As the work was carried on during the summer and the cows were in pasture most of the time, their udders were always practically free from visible dirt; therefore that factor received no further considera- tion. At each milking the milk was stirred by means of a long, sterile pipette, after w^hich samples were taken from each can and a composite -Int
. Bulletin of the Department of Agriculture. Agriculture; Agriculture -- United States. 40 BULLETIN 642, U. S. DEPARTMENT OF AGRICULTURE. sterilizer was demonstrated to the farmers, who were then left to operate it without further assistance. As the work was carried on during the summer and the cows were in pasture most of the time, their udders were always practically free from visible dirt; therefore that factor received no further considera- tion. At each milking the milk was stirred by means of a long, sterile pipette, after w^hich samples were taken from each can and a composite -Interiur of baiii at laiiu No. 27. sample made, which was immediately placed in ice water and plated wdthin an hour and a half. For a period of three weeks samples were taken at each farm under the usual conditions (open pails, not sterilized) and for the three weeks following, when small-top pails, sterilized, were in operation. Table 18 shows the bacterial count of each sample obtained from the night's milk, fresh, on each farm during the entire six weeks, also. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , Govt. Print. Off.
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