. Bulletin. Agriculture -- Massachusetts Periodicals; Fertilizers -- Analysis Periodicals. Milk varies widely in composition, depending Chemical upon the breed and individuality of the cow, Composition of stage of lactation and weather conditions. Milk. Food, as a rule, has little elTect in permanently changing the proportions of the several in- gredients. One hundred pounds of milk of good average quality should contain about the following amounts of the different con- stituents :' Pounds in loo or Per Cent. Water, ....... Fat, . Albuminoids Milk sugar, Ash, . ^ Casein, i Albumin,
. Bulletin. Agriculture -- Massachusetts Periodicals; Fertilizers -- Analysis Periodicals. Milk varies widely in composition, depending Chemical upon the breed and individuality of the cow, Composition of stage of lactation and weather conditions. Milk. Food, as a rule, has little elTect in permanently changing the proportions of the several in- gredients. One hundred pounds of milk of good average quality should contain about the following amounts of the different con- stituents :' Pounds in loo or Per Cent. Water, ....... Fat, . Albuminoids Milk sugar, Ash, . ^ Casein, i Albumin, •50 .70 The total solids include all of the ingredients excepting the water. The proportions may be expressed by the following squares':. Water Sugar Fat Casein Ash and Albumin For ordinary purposes, the chemist determines only the total solids and the fat, and obtains the solids not fat by difference. The fol- lowing figures, according to Hucho^ and Koenig^ give the approxi- mate average composition of the milk of different breeds : •The average composition of 793 samples of milk from pure bred and grade cows accord- ing to Koenig is ^ solids and of fat; of 2oo,oao samples of mixed milk analyzed by the Aylesbury Dairy Co., London, (See Richmond) is ':; solids and :* fat Wiley says recent analyses of average milk show '! solids and 454 fat. The average of 4103 samples made at this Station (Jersey blood predominating) is ^ solids and ^ fat. 2 See Farmers' Bulletin No. 42, U. S. Dept. of Agriculture. 3 WoU's Handbook, p. 213 and 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 Hatch Experiment Station. [S. l. : s. n. ]
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