. Milk and its products : a treatise upon the nature and qualities of dairy milk, and the manufacture of butter and cheese . Dairying. 8 Milk and Its Products. part of the albumin is in some way changed dur- ing its passage from the capillaries, and appears in the cavity of the follicle as the casein of the Fig. 1. Section through alveoli of the mammary gland of the dog in first and second stages of secretion. From Meade Smith, after Heidenhain. When milk is being secreted, the lining cells of the follicle are in a state of constant activity. New cells are constantly being formed by bud
. Milk and its products : a treatise upon the nature and qualities of dairy milk, and the manufacture of butter and cheese . Dairying. 8 Milk and Its Products. part of the albumin is in some way changed dur- ing its passage from the capillaries, and appears in the cavity of the follicle as the casein of the Fig. 1. Section through alveoli of the mammary gland of the dog in first and second stages of secretion. From Meade Smith, after Heidenhain. When milk is being secreted, the lining cells of the follicle are in a state of constant activity. New cells are constantly being formed by budding or fission (the cell elongates, a partition forms across it, and the two halves so divided enlarge to the size of the mother cell, and there are two cells where but one existed before), and older cells are as constantly breaking down. While this is going on, the cell contents, consisting mainly of protoplasm, become changed into a globule of fat, and the globules so formed are either extruded through the cell wall into the cavity of the follicle, or set free by the breaking down and reabsorption of the cell wall. In all probability both processes take place. Small portions of the fat may also be earned over directly from the blood and appear in the milk without change. D%Mej%j^jcPMm is probably formed. 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 Wing, Henry H. (Henry Hiram), 1859-1936. New York : Macmillan
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Keywords: ., bookauthorw, bookcentury1800, bookdecade1890, booksubjectdairying
