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Author: Thomas Shaw
Publisher: Forgotten Books
ISBN: 9780484201933
Category :
Languages : en
Pages : 420
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Book Description
Excerpt from Animal Breeding Breeding a Science and an Art - Animal breed ing is at once a science and an art. It is a science in so far as it discovers and systematically arranges the truths and principles which relate to the improve ment of live stock. The value of in-and - in breeding, for instance, as a quick means of improvement illus trates such discovery. (see Chapter X.) It does not appear to have been known to the ancients. If it were thus known the knowledge was subsequently lost. The systematic arrangement of the truths and principles which relate to the science is yet far from complete, and it may be added, that many of these truths and principles are not yet understood. It is an art in so far as it successfully uses those principles in effecting improvement. The importance, there fore, of understanding the principles which make improvement possible will be at once apparent, since, until so understood, they cannot be turned to profit able account. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: Thomas Shaw
Publisher: Forgotten Books
ISBN: 9780484201933
Category :
Languages : en
Pages : 420
Get Book Here
Book Description
Excerpt from Animal Breeding Breeding a Science and an Art - Animal breed ing is at once a science and an art. It is a science in so far as it discovers and systematically arranges the truths and principles which relate to the improve ment of live stock. The value of in-and - in breeding, for instance, as a quick means of improvement illus trates such discovery. (see Chapter X.) It does not appear to have been known to the ancients. If it were thus known the knowledge was subsequently lost. The systematic arrangement of the truths and principles which relate to the science is yet far from complete, and it may be added, that many of these truths and principles are not yet understood. It is an art in so far as it successfully uses those principles in effecting improvement. The importance, there fore, of understanding the principles which make improvement possible will be at once apparent, since, until so understood, they cannot be turned to profit able account. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: George McCullough Rummel
Publisher: Forgotten Books
ISBN: 9780484281218
Category : Pets
Languages : en
Pages : 42
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Book Description
Excerpt from Essentials of Animal Breeding Females usually accept service only during the period of heat. It seems to make little difference when service is made, whether early or late in heat. As a rule, not more than one service is necessary dur ing one period of heat to insure conception. After conception takes place, the female does not generally come in heat again during preg nancy. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: Frederick Rupert Marshall
Publisher: Forgotten Books
ISBN: 9781391696881
Category : Science
Languages : en
Pages : 292
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Book Description
Excerpt from Breeding Farm Animals Secrets in Breeding - Indefinite Expressions of Breeders Results of Experience - Bakewell's Principles Breeders' Desideratum - Heredity - Heredity has a Physical Basis 32 - 39. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: F. B. Mumford
Publisher: Forgotten Books
ISBN: 9781528148856
Category : Science
Languages : en
Pages : 398
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Book Description
Excerpt from The Breeding of Animals The problems of the animal-breeder may all be grouped under the three subjects, reproduction, inherit ance, development. The mere multiplication Of the Species is now, and always has been, the major work Of the breeder of domestic animals. But the real breeder is not only concerned with the production Of mere numbers of animals Of a given species but is primarily interested in securing animals possessing the largest number Of desirable qualities and the least number Of qualities undesirable to man. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: Merritt Wesley Harper
Publisher: Forgotten Books
ISBN: 9780331714876
Category : Pets
Languages : en
Pages : 356
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Book Description
Excerpt from Breeding of Farm Animals While man makes economic use of many species of animals, this discussion is limited to that of breeding farm animals, including horses, cattle, sheep, swine and poultry, although other species occasionally may be used as illustrations and examples. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: W. M. Hays
Publisher:
ISBN: 9781332342068
Category : Business & Economics
Languages : en
Pages : 206
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Book Description
Excerpt from Breeding Plants and Animals The Farm Students' Review in publishing in book form these papers by Prof. Willet M. Hays, now Assistant Secretary of the United States Department of Agriculture, believes it is doing a public service, as well as undertaking a profitable enterprise for itself. These articles published in discontinuous parts covering two years in a weekly periodical, have not had a fair presentation even to the readers of the Breeders Gazette. While they were not designed to be brought together in a book, but rather became a part of a rapidly developing subject currently discussed in the periodical mentioned, they give in an emphatic way many of the theories of the author. The body of knowledge he gathered - after commencing investigations in animal breeding, but using many plants for theoretical experiments, for demonstrating that the science of breeding can be developed, and for the addition to wealth of the State and Nation - is here better ex-than in any of his earlier publications. It is believed by the Farm Students Review that breeders of animals, breeders of plants, scientists who are studying related problems, and students in agricultural schools will appreciate these papers in book form. The price has been placed low for a book of this size and character. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: William E. Castle
Publisher: Forgotten Books
ISBN: 9781528550963
Category : Science
Languages : en
Pages : 234
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Book Description
Excerpt from Heredity in Relation to Evolution and Animal Breeding The existence of civilized man rests ultimately on his ability to produce from the earth in suf ficient abundance cultivated plants and domes ticated animals. City populations are apt to forget this fundamental fact and to regard with indifierence bordering at times on scorn agri cultural districts and their workers. But let the steady stream of supplies coming from the land to any large city be interrupted for only a few days by war, floods, a railroad strike, or any similar occurrence, and this sentiment vanishes instantly. Man to live must have food, and food comes chiefly from the land. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: Charles Sumner Plumb
Publisher: Forgotten Books
ISBN: 9780265887325
Category :
Languages : en
Pages : 838
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Book Description
Excerpt from Types and Breeds of Farm Animals One of the most hopeful signs on the horizon of American live-stock husbandry is the present interest in community and cooperative breeding and the establishment of thousands of boys' and girls' live-stock clubs. For this reason the future prospects of improved live-stock husbandry are most encouraging. Both types and breeds are receiving greatly increased attention, and many more are seriously interested in constructive breeding than ever before. It is the profound desire of the author that this work shall contribute to this end. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: Sewall Wright
Publisher: Forgotten Books
ISBN: 9780265821282
Category : Science
Languages : en
Pages : 74
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Book Description
Excerpt from Principles of Livestock Breeding It has been found that the number Of these chromosomes in the cells Of each kind Of animal or plant is constant, with certain quali fications, one Of which will be taken up later. There are, for in stance, 40 in swine, 48 in man, 8 in the fruit fly, 20 in corn, and 16 in wheat. A great deal of attention has been devoted to the chromo somes in recent years, as it has been demonstrated that they play an all-important part in? Heredity and the determination Of sex.' We shall have occasion to refer to them later. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
Author: Frank Getz Ashbrook
Publisher: Forgotten Books
ISBN: 9781528109871
Category : Business & Economics
Languages : en
Pages : 24
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Book Description
Excerpt from The Breeding of Fur Animals The usefulness Of breeding data 111 this situation may be illustrated by the case of the marten (fig. At its experiment station near Saratoga Springs, N. Y., established in 1923, the Bureau has been studying the breeding and the gestation period of the marten. As a result it has found that a period Of 9% months elapses between the time of copulation and birth. With so long a period Of gestation, many pregnant females are bound to be destroyed under the prevailing system of open and close seasons. It is obvious that unless the trapping season for a fur animal corresponds accurately with its gestation-free period, the close season will not accomplish what it is intended to: the prospective generation will be destroyed along with the one trapped. Even this precaution, however, would be ineffective in the case of the marten or the fisher, for their gestation periods are too long. A 5 or 10-year closed period is necessary to prevent local or even general extermination Of these two fur animals. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.
