Download or read book Some Factors Influencing the Fertility and Hatching Power of Eggs of the Domestic Fowl written by Raymond Harvey Wilkins and published by . This book was released on 1915 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Influencing Hatchability in the Domestic Fowl written by E. M. Funk and published by . This book was released on 1934 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data on Certain Factors Influencing the Fertility and Hatching of Eggs Classic Reprint written by Raymond Pearl and published by Forgotten Books. This book was released on 2016-12-07 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Data on Certain Factors Influencing the Fertility and Hatching of Eggs There is a rather common belief that when hatching eggs run low in fertility the fault is chie y or entirely in the male bird which is with the ock. For some reason which is difficult to understand very little in uence is attributed in the popular mind to the females in causing poor results of this kind, the belief rather being that the male bird has an almost exclusive in uence in determining fertility of eggs. It seems somewhat remarkable that this notion of the predominant in uence of the male bird in determining the fertility of eggs among poultry Should be so widespread, in view of the fact that the popular belief with reference to other domestic animals is exactly the opposite. For example, in cattle and horse breeding the fail ure of the female to become pregnant (the equivalent in part of the fertilization of the egg in poultry) is commonly attrib uted to some defect in the female rather than in the male. The standpoint which the known facts of biology lead one to take is that in all bisexual animals the in uence of the two sexes is in general equal in determining whether any given egg shall or shall not be fertilized. That is to say, there is on general grounds every reason to suppose that the infertility of eggs is as likely to be due to a defect of the female as to a defect of the male and vice versa. It seems desirable to determine with some precision whether this general statement is true for poultry or not. When the average fertility for a ock of hens runs low what proportion of this low fertility is to be attributed to the poor breeding performance of the hens and what proportion to the male birds? The practical importance of the question is obvious. If the man who is selling eggs for hatching can learn that one particular hen, for example, in his ock never pro duces a fertile egg, it will be greatly to the advantage of his trade to eliminate that bird from those which are producing his hatching eggs. In order to bring out with completeness and precision the comparative in uence of male and female birds on the fertility of eggs Tables VII and VIII have been prepared. These tables Show for each breeding pen the following facts: (i) The band number of the cockerel which was placed in that pen. 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."

Download or read book Biology of Breeding Poultry written by Paul M. Hocking and published by CABI. This book was released on 2009 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the biological science and background to breeding meat poultry, specifically broiler, turkey and duck. These commercial birds have been changed by genetic selection to such an extent that they are substantially different from traditional breeds and laying hens. Covering science, management and husbandry systems, this book is an essential reference for researchers and students in animal science, as well as technical staff of breeding companies and poultry meat producers. Part of the Poultry Science Symposium Series.

Download or read book Journal of Agricultural Research written by and published by . This book was released on 1941 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Influencing the Size Shape and Physical Constitution of the Egg of the Domestic Fowl written by Maynie Rose Curtis and published by . This book was released on 1914 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data on Certain Factors Influencing the Fertility and Hatching of Eggs written by Raymond Pearl and published by . This book was released on 1910 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fertility and Hatchability of Chicken and Turkey Eggs written by Lewis Walter Taylor and published by . This book was released on 1949 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of Some Factors on the Hatchability of the Hen s Egg written by Don Cameron Warren and published by . This book was released on 1934 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cornell University Register and Catalogue written by Cornell University and published by . This book was released on 1915 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Factors Affecting Egg Size in the Domestic Fowl written by Noel Lindsay Bennion and published by . This book was released on 1932 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Influencing Fertility Preincubation Embryo Development and Embryo Viability in Domestic Fowl written by Gaylene Marie Fasenko and published by . This book was released on 1992 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Fertility and Hatchability of the Hen s Egg written by Thomas Christopher Carter and published by . This book was released on 1969 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by Poultry Science Association and published by . This book was released on 1912 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cornell University Announcements written by Cornell University and published by . This book was released on 1913 with total page 1942 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Poultry Production written by William Adams Lippincott and published by . This book was released on 1927 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Poultry Theses written by and published by . This book was released on 1952 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: