The horse and other live stock . time it istrue that cases now and then arefound where the very best markedand developed mirrors are found onvery poor milkers. These apparentexceptions, however, are to be ex-plained, in the large majority of cases,by causes outside of those whichaffect the appearance of the milk-mirror. It is, of course, impossible toestimate with mathematical accuracyeither the quantity, quality, or du-ration of the milk, since it is affected by so many chancecircumstances, which cannot always be known or estimatedby even the most skillful judges; such,for example, as the foo
The horse and other live stock . time it istrue that cases now and then arefound where the very best markedand developed mirrors are found onvery poor milkers. These apparentexceptions, however, are to be ex-plained, in the large majority of cases,by causes outside of those whichaffect the appearance of the milk-mirror. It is, of course, impossible toestimate with mathematical accuracyeither the quantity, quality, or du-ration of the milk, since it is affected by so many chancecircumstances, which cannot always be known or estimatedby even the most skillful judges; such,for example, as the food, the treat-ment, the temperament, accidentaldiseases, inflammation of the udder,premature calving, the climate andseason, the manner in which she hasbeen milked, and a thousand otherthings which interrupt or influencethe flow of milk, without materiallychanging the size or shape of themilk-mirror. It has, indeed, beenMILK-MIRROR [C] very justly observed that we often see cows equally well formed, with precisely the same milk-. 64 CATTLE AND THEIR DISEASES. mirror, and kept in the same circumstances, yet giving neitherequal quantities nor similar qualities of milk. Nor could itbe otherwise; since the action of the organs depends, notmerely on their size and form, but, to a great extent, on thegeneral condition of each individual. The different forms of milk-mirrors are represented bythe shaded parts of cuts, lettered A, B, C, D; but it is neces-sary to premise that upon the cows themselves they arealways partly concealed by the thighs, the udder, and thefolds of the skin, which are not shown, and therefore they arenot always so uniform in nature as they appear in the cuts. Their size varies as the skin is more or less folded orstretched; while the cuts represent the skin as uniform orfree from folds, but not stretched out. It is usually veryeasy to distinguish the milk-mirrors by the upward directionof the hair which forms them. They are sometimes markedby a line of bristly ha
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectveterin, bookyear1866
