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|Additional Physical Format:||Online version:
Ayers, S. Henry (Samuel Henry).
Four essential factors in the production of milk of low bacterial content.
Washington, D.C. : U.S. Dept. of Agriculture, 1918
|Material Type:||Government publication, National government publication|
|All Authors / Contributors:||
S Henry Ayers; Lee Briggs Cook; Paul W Clemmer; United States. Department of Agriculture.
"April 30, 1918."
|Description:||63 pages, 6 pages of plates : illustrations ; 24 cm.|
|Contents:||Factors influencing the sanitary quality of milk. pp. 1. Objects of the investigation --
Description of barn and methods used in the production of milk. pp. 3. Methods of sampling and making the bacterial count --
The experimental work. pp. 5. Contamination of milk by unsterilized utensils. pp. 25. Contamination of milk by manure and dirt. pp. 32. The three most essential factors in the production of milk at low bacterial content. pp. 38. A practical demonstration of six farms. pp. 39. Bacterial counts of of fresh milk on the average farm. pp. 43. The effect of temperature on the growth of bacteria in milk. pp. 45. Summary. pp. 58. Conclusions. pp. 59. Literature cited. pp. 61.
|Series Title:||Bulletin of the U.S. Department of Agriculture, no. 642.|
|Responsibility:||by S. Henry Ayers, Lee B. Cook, and Paul W. Clemmer.|