. Types and market classes of live stock. kboneshall stand up prominently along the back, loin, and rump,and terminate in a long tail. The argument is that a well-developed backbone encloses a large spinal cord, and as alarge nerve branches off at the last dorsal vertebra and goesto the udder to control operations there, a large spinal columnis accepted as evidence of proper development of the nervoussystem, which, in turn, is supposed to signify increased ef-ficiency on the part of the cow as a milk machine. Whetherthe size of the brain, spinal cord, and branching nerves, rather Types and Mar
. Types and market classes of live stock. kboneshall stand up prominently along the back, loin, and rump,and terminate in a long tail. The argument is that a well-developed backbone encloses a large spinal cord, and as alarge nerve branches off at the last dorsal vertebra and goesto the udder to control operations there, a large spinal columnis accepted as evidence of proper development of the nervoussystem, which, in turn, is supposed to signify increased ef-ficiency on the part of the cow as a milk machine. Whetherthe size of the brain, spinal cord, and branching nerves, rather Types and Market Classes of Live Stock 119 than their quality and texture, determines the efficiency ofthe nervous system may be questioned, and as for the courseof reasoning showing the relation between the size of back-bone and quantity of milk yield, the reader may take it forwhat he deems it worth and form his own conclusions. Inany event, there are many other ways of estimating a cowsvalue, the reliability of which are better substantiated. How-. -froCHSMPiOM ri)!> SHOW19I3 - \9I* Fig. 31. Excellent Type in the Dairy Cow. Ayrshire cow, Kilnford Bell 3d., Champion at the National DairyShow in 1913 and 1914. Note the beautiful head of this cow, and herlarge shapely udder. Her conformation indicates strength and vigorwithout coarseness. Owned by Mr. Adam Seitz of Waukesha, Wis. ever, a prominent backbone is valuable as an evidence oftrue dairy temperament, or freedom from beefiness. The loin should be rather long, should carry up level andstrong, and show a fair degree of width. The barrel ought to be very deep and wide, and this issecured when the ribs are very long and reasonably well 120 Types and Market Classes of Live Stock arched. There will be no such degree of rotundity as isfound in beef cattle; there should be a well-developed paunchwith a capacity for lots of feed. A flat-sided conformationmeans a restricted capacity for food. The ribs do not lieclose together along t
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