Download or read book The Effect of Frequency of Mating on the Fertility and Hatchability of the Hen s Egg written by J. Homer Bardsley and published by . This book was released on 1918 with total page 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 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 Effect of the Age of a Hen on Fertility and Hatchability of Eggs and on Livability and Growth of Chicks written by Aubrey Lee Crossland and published by . This book was released on 1935 with total page 62 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 2017-10-17 with total page 66 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 chiefly or entirely in the male bird which is with the flock. For some reason which is difficult to understand very little influence 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 influence in determining fertility of eggs. It seems somewhat remarkable that this notion of the predominant influence 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 influence 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 flock 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 flock 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 influence 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 Poultry Science written by and published by . This book was released on 1996 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 5 includes a separately paged special issue, dated June 1926.
Download or read book Duck Production and Management Strategies written by A. Jalaludeen and published by Springer Nature. This book was released on 2022-01-20 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive insights into the field of duck production and management. It presents a complete overview of different aspects of duck production with particular emphasis on rearing systems. The book reviews current knowledge on the anatomy, physiology, genetics, breeding, nutrition, incubation, and hatching practices of ducks. It further discusses the common diseases of duck, their treatment regime, and prevention strategies. The book additionally examines all aspects of the global duck industry, the constraints, and the recommendations. It also explores nutrient requirements and feed evaluation for duck and evaluates nutrition's influence on the gut microbiome. Towards the end, the book presents the latest genomic applications, including high throughput sequencing and various bioinformatics tools in duck production. This book serves as an essential resource for duck industry practitioners, researchers, and students.
Download or read book The Journal of the American Association of Instructors and Investigators in Poultry Husbandry written by and published by . This book was released on 1918 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the American Association of Instructors and Investigators in Poultry Husbandry written by Poultry Science Association and published by . This book was released on 1918 with total page 192 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 The Poultry Item written by and published by . This book was released on 1917 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Reproduction Phase of Breeder Hens Poult Hatch Time and Fatty Acid Supplementation of the Breeder Hen Diet on Livability Growth Characteristics and Yolk and Liver Fatty Acid Composition in Posthatch Poults written by Keith Alan Turner and published by . This book was released on 1995 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal written by Poultry Science Association and published by . This book was released on 1917 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproductive Phenomena in Ageing Hens written by Wyatt Marion Insko and published by . This book was released on 1947 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Broiler Breeder Production written by S. Leeson and published by Nottingham University Press. This book was released on 2010-04-01 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of all aspects of commercial production systems, this book provides an up-to-date look at all aspects of broiler breeder production and management, starting with specialized genetic programs as developed by the primary breeders and ending with two chapters on very practical, hands-on aspects of breeder management, including extensive coverage of health management, feeding systems, environmental control, lighting programs and all aspects of male and female reproduction. Recognizing the diversity of management systems worldwide, the authors have included breeders in both temperate and warm climates and also for controlled environment vs.curtain-sided housing systems. This unique publication is an essential reference for all professionals involved in broiler breeder production.
Download or read book Poultry Behaviour and Welfare written by Michael C. Appleby and published by CABI. This book was released on 2004 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative textbook provides an introduction and guide to poultry behavior and welfare. It describes the origin and biology of the various species of bird that are of agricultural importance, as well as giving a succinct overview of their key behavior patterns. There is careful discussion of the many factors that influence their welfare, and detailed consideration of the ways in which legislation and commercial interests interact in an attempt to satisfy the many needs involved. The final chapters discuss possible future developments within the subject. The book is in part an update of a previous work, Poultry Production Systems: Behaviour, Management and Welfare (CABI, 1992), completely rewritten and with much new material added.
Download or read book Agricultural Index written by and published by . This book was released on 1951 with total page 2204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
