. The dairyman's manual. A practical treatise on the dairy .. . th or fifth day after parturition themilk becomes normal in character and is fitted for gen-eral use. It however always contains more or less al-bumen, and this is a common source of trouble in the dairy, especially in win-ter, when heat is used toefEect the necessary acid-ity or ripening of thecream. The albumen isthus solidified and causesthe troublesome whiteFig- S3. specks in the butter. When the milk glands first assume their tumefied orswollen condition, just previous to parturition, the lob-ules of the glands
. The dairyman's manual. A practical treatise on the dairy .. . th or fifth day after parturition themilk becomes normal in character and is fitted for gen-eral use. It however always contains more or less al-bumen, and this is a common source of trouble in the dairy, especially in win-ter, when heat is used toefEect the necessary acid-ity or ripening of thecream. The albumen isthus solidified and causesthe troublesome whiteFig- S3. specks in the butter. When the milk glands first assume their tumefied orswollen condition, just previous to parturition, the lob-ules of the glands with a largely increcsednumber of cells (figure 33, b), and these greatly increasethe size of the udder. Previous to this condition thelobules are shrunken (figure 23, a) and the formationand constant destruction of cells, as they are formed,are occurring continuously, and it is only when theudder is charged and filled with milk that it is when the active development of cells is in progress,the lobules of the glands are enlarged and do not break. MILK. 197 down immediately, but retaining their increased sizethey cause the udder to become hard and much extendedin size. This hardness of the udder is often supposedto be caused by some disorder, and much unnecessarytrouble is often borrowed on this account. When, how-ever, the process of lactation is under way, and theglandular follicles begin to break down copiously andthe secretion of milk increases, and especially when thecolustrum period has passed, the udder becomes lesshard and tense, excepting when full of milk, and looseand soft as soon as the milk is drawn. The udder of the cow consists of four distinct andseparate glands commonly called quarters, each one con-sisting of a mass of lobules, among which are a largenumber of ducts small at the extremities, but graduallyconnecting and forming large ducts, which in their turnform sinuses or reservoirs in which the milk gathers as itis secreted. The largest of thes
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdairyin, bookyear1894