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Updated: June 9, 2025
Meanwhile the clever stock breeders have combined inbreeding with selection and have won the show prizes and sold the people "new blood" at fancy prices. Unintelligent inbreeding as practiced on many a farm, results in run down stock, not so much from inbreeding as from lack of selection. Out-crossing or mixing in of new blood is better than hit-or-miss inbreeding.
Broadly speaking, two methods have been adopted: The method of introducing an outcross to impart new blood, new strength, new character; and the method of inbreeding to retain an approved type. An outcross is introduced when the breed operated upon is declining in stamina or is in danger of extinction, or when some new physical or mental quality is desired.
The German text books that came in Gard's way proved the national craze for what was Deutsch, echt Deutsch, to the exclusion of what was not. It was almost a ferocity of inbreeding instruction. It created the furor Teutonicus. The Hohenzollerns used education as a prod to madden the Germans.
"The trouble with us," mused Malcourt, lazily switching the fragrant beach-grapes with his riding-crop, "is inbreeding. Yes, that's it. And we know what it brings to kings and kine alike. Tressilvain is half-mad, I think. And we are used up and out of date.... The lusty, jewelled bacchantes who now haunt the inner temple kindle the social flames with newer names than ours.
We are now beginning to see the end of the North American fauna; and if we do not move promptly, it will become a matter of history and of museums. The bison is on the danger line; if it survives the fatal effects of its natural sluggishness when abundantly fed, it still runs the more insidious but equally great danger of inbreeding, like the wild ox of Europe.
It does not necessarily destroy the vitality, but if close inbreeding is practiced long enough, sooner or later some little existing weakness or peculiarity would become intensified and may prove fatal to the strain. For illustration, suppose we began inbreeding brother and sister with a view of keeping it up indefinitely.
This is probably due to killing off the big bulls, thus leaving the breeding to be done by the smaller and weaker bulls; and, also, to inbreeding. In Maine the moose originally abounded, but by the middle of the last century they were so reduced in numbers as to be almost rare.
In ordinary breeding there are two other principles that are sometimes called into play. One is prepotency, the other is inbreeding. By prepotent we mean having unusual power to transmit characters to offspring. Suppose a breeder has five yards headed by five cock birds.
Inbreeding means the reduction of the number of branches in the ancestral tree, and this means the reduction of the number of chances to get variation, be they good or bad. Inbreeding simply intensifies whatever is there.
All these terriers had intense quality and style, due for the most part to inbreeding. Very little new blood was introduced, with an inevitable result; and by degrees the kennel died out. No history of the Fox-terrier could be complete without mention of Mr.
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