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Show GOOD COW OUTDOES WORK OF A HORSE A horse would have to work con tlnuously slightly more than ISty hours every day to do the same amount of useful work as the dalrj cow. Prof. W. W. 1'app, prominent dairy cattle Judge and a member of the dairy department of the college of agriculture. University of Illinois, makes this comparison to show that It Is necessary for the dairy cow to have a strong constitution In order to do her work day in and day out, month In and month out and year In and year out Such a constitution Is Indicated by a full, broad chest and a strong, vigorous, rugged appearance, he says. In addition to constitution and gen eral health, there are three other char acteristics of a dairy cow that should be taken Into consideration In picking out a cow, according to ProfessoJ Yapp. These are dairy tendency, feed lng capacity and development of the milking organs. These three characteristics, charac-teristics, together with constitution and general health, are associated with the ability of the animals to produce pro-duce milk and butterfat. The degree to which the cow excells in all of them Is taken as the indication of her probable prob-able productive ability. Dairy tendency in reality characterizes character-izes the dairy cow and Is understood to mean her ability to utilize feed for milk and butterfat production. Dairy tendency In highly developed dairy cows Is so pronounced, so well developed, devel-oped, that the animal will. If not given enough feed, deplete her own body tissues, tis-sues, even to removing the calcium from her bones in order to supply the necessary constituents for the milk which she produces. The extreme development de-velopment of this character Is highly prized by dairymen and is among the first characteristics to be considered In choosing an animal. The constituents of which milk and butterfat are composed must come from the feed and water consumed by the dairy cow. Furthermore, all of the body processes Including digestion and assimilation require energy which must come from feed. Therefore, It Is necessary for the cow to have ample capacity to enable her to eat enough feed for all of these processes. A Holstein cow weighing 1,500 pounds and giving 40 pounds of 3.5 per cent milk requires for all purposes, 45 pounds ot silage. 15 pounds of alfalfa hay, 7 pounds of ground corn. 4 pounds of wheat Dran and 1 pound of oil meal or a total of 72 pounds of feed. A cow making exceptional productions produc-tions sometimes eats 150 to 200 pounds of feed, exclusive of water, containing as much as 50 to 60 pounds dry matter. mat-ter. Furthermore, the digestive system sys-tem of the cow Js designed by nature to most efficiently utilize bulky feeds. Such feeds further tax the digestive system of the Individual. A large well-developed udder characterizes char-acterizes the dairy cow In heavy flow of milk. Tne entire mammary system. sys-tem. Including udder, milk veins and milk wells Is correlated to production. It Is seldom, Indeed, that cows with small and poorly formed udders produce pro-duce large yields of milk and fat. All of these characteristics are Important Im-portant in the selection of a dairy cow. It Is seldom advisable to choose an animal which Is especially strong In some but not In all of these characteristics. char-acteristics. Even with strict observance observ-ance of the form of a dairy cow. such observations are at best but an approximation approx-imation of the productive capacity ot the animal and are best used to detect de-tect wide, rather than small, differences differ-ences In production. |