Crossbreeding in Swine

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Excerpt from Crossbreeding in Swine: Does It Offer an Effective Method for the Improvement of Market Hogs?It is doubtless possible to develop and maintain strains of swine at relatively high levels of inbreeding, say as high as 40, 50, or 60 percent. A cross between certain of these inbred individuals would very likely produce excellent crossbred pigs. But this occurrence, would in itself give no assurance whatever that other individuals in future generations of these lines, even tho maintained at the same level of inbreeding, would also produce desirable crossbreds. Maintaining a given level of inbreeding, a relatively easy thing to do, will not guarantee uniform breeding results. Uniform results require the maintenance of the same genetic constitution from generation to generation, an achievement that is impracticable, if not impossible, owing to the biparental method of reproduction in swine.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.