Download or read book Factors Affecting Fertility and Hatchability of Eggs from Broiler Breeder Hens written by Melissa Leigh Eslick and published by . This book was released on 1989 with total page 92 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 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 Breeding and Genetics written by R. D. Crawford and published by Elsevier Science Health Science Division. This book was released on 1990 with total page 1123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poultry biology; Qualitative genetics; New directions in poultry genetics; Quantitative genetics and selection; Applied breeding and selection.
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 Poultry Meat and Egg Production written by Carmen Parkhurst and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poultry Meat and Egg Production has been prepared primarily for use as a text for students taking their first courses in poultry manage ment. The general overall science and production practices currently in use in the industry have been characterized and described so that the student can gain insight into the industry. Reading portions of chapters before the lecture discussions and laboratory sessions will be helpful in giving students an understanding of the material. Also, this gives the instructor an opportunity to emphasize in the lectures areas of current concern in the industry, and to present topics of his or her choice in greater detail. We wish to acknowledge and thank the following scientists who reviewed and critically evaluated the several chapters and made many helpful suggestions: Dr. Bobby Barnett, Clemson University; Mr. D. O. Bell, University of California; Dr. Donald Bray (retired), University of Illinois; Dr. W. H. Burke, University of Georgia; Dr. Frank Cherms, Nicholas Turkey Breeding Farms, Inc., Sonoma, California; Dr. Wen dell Carlson (retired), South Dakota State University; Dr. J. V. Craig, Kansas State University; Dr. K. Goodwin (retired), Pennsylvania State University; Dr. T. L. Goodwin, University of Arkansas; Dr. G. C.
Download or read book Commercial Chicken Meat and Egg Production written by Donald D. Bell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commercial Chicken Meat and Egg Production is the 5th edition of a highly successful book first authored by Dr. Mack O. North in 1972, updated in 1978 and 1984. The 4th edition was co-authored with Donald D. Bell in 1990. The book has achieved international success as a reference for students and commercial poultry and egg producers in every major poultry producing country in the world. The 5th edition is essential reading for students preparing to enter the poultry industry, for owners and managers of existing poultry companies and for scientists who need a major source of scientifically based material on poultry management. In earlier editions, the authors emphasized the chicken and its management. The 5th edition, with the emphasis shifted to the commercial business of managing poultry, contains over 75% new material. The contributions of 14 new authors make this new edition the most comprehensive such book available. Since extensive references are made to the international aspects of poultry management, all data are presented in both the Imperial and Metric form. Over 300 tables and 250 photos and figures support 62 chapters of text. New areas include processing of poultry and eggs with thorough discussions of food safety and further processing. The business of maintaining poultry is discussed in chapters on economics, model production firms, the use of computers, and record keeping. Updated topics include: breeders and hatchery operations; broiler and layer flock management; replacement programs and management of replacements; nutrition; and flock health. New chapters address flock behavior, ventilation, waste management, egg quality and egg breakage. Other new features include a list of more than 400 references and a Master List of the tables, figures, manufacturers of equipment and supplies, research institutions, books and periodicals, breeders, and trade associations. Commercial growers will find the tables of data of particular interest; scientists will be able to utilize the extensive references and to relate their areas of interest to the commercial industry's applications; and students will find that the division of the book into 11 distinct sections, with multiple chapters in each, will make the text especially useful.
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 Optimizing Chick Production in Broiler Breeders written by Frank Edwin Robinson and published by Spotted Cow Press. This book was released on 2003 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Poultry Genetics Breeding and Biotechnology written by W. M. Muir and published by CABI. This book was released on 2003-06-18 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive research book represents the first complete integration of current knowledge in this area. It addresses issues associated with poultry breeding particularly by examining quantitative and molecular genetics and the uses of transgenic technology. A special section covers the important area of disease resistance and transmission.
Download or read book Factors Influencing the Feasibility of Producing Broiler Breeder Hatching Eggs in Multiple Bird Cages written by Egladson Joao Campos and published by . This book was released on 1973 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hatching egg production from commercial broiler breeders housed in single and multiple male cages maintained in a naturally and in artificially ventilated houses was investigated. Twelve cages measuring 90x90x60 cm. and housing either 8 or 10 females and a male were compared with four cages measuring 90x180x60 cm. and housing 20 females and 2 males. A phase-feeding energy program utilizing three isonitrogenous diets with different levels of energy; specifically, 2398 Kcal. M.E. (low), 2670 Kcal. M.E. (medium) and 3027 Kcal. M.E. (high) per kg. of feed was studied. Control groups in cages and on floor were fed the medium energy diet. The total number of airborne bacteria per cubic foot of air, including coliforms, also was studied in both types of ventilated cage houses and in litter-floored pens. Egg shell contamination in cage and floor environments was also determined. ...
Download or read book Avian Poultry Production written by Carin Fisker and published by . This book was released on 2016-04-01 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poultry has a crucial place worldwide as the eggs and chicken meat are important and rich sources of protein, vitamins and minerals. Poultry provides rich organic manure and is an important source of income and employment to millions of farmers and other persons engaged in allied activities in the poultry industry. Chickens and turkeys that are commercially raised today are the result of many years of selection and breeding of two or more breeds to continually improve productivity. Poultry farming is the raising of domesticated birds such as chickens, ducks, turkeys and geese for the purpose of farming meat or eggs for food. Poultry are farmed in great numbers with chickens being the most numerous. More than 50 billion chickens are raised annually as a source of food, for both their meat and their eggs. The chicken industry is made up of meatproducing chickens and egg-producing chickens. The modern meat-type chicken is derived from the deep-breasted Cornish breed and has been selected with an emphasis on producing meat rather than eggs. Further processing of meat chickens has led to many new products geared to the convenienceminded consumer, such as boneless, skinless breasts. The turkey industry has developed strains of birds with an emphasis on meat production and breast size, as the white meat has a higher market value in the United States. Many pure breeds of poultry are raised for exhibition, hobby and/or breed preservation purposes. There is lots to discover with the comprehensive poultry production. We all know that in order to get the best out of birds, poultry keepers need to be up to date with the latest ideas and techniques. The book Avian (Poultry) Production discusses about the anatomy and physiology of birds, building them the best housing, breeding, egg production and also about preventing parasites and diseases.
Download or read book New Developments in Reproduction and Incubation of Broiler Chickens written by Frank Edwin Robinson and published by Spotted Cow Press. This book was released on 2003 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Isolation of the Factors Involved in Broiler Breeder Heat Stress Infertility written by Christopher David McDaniel and published by . This book was released on 1995 with total page 198 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 Some Factors Affecting the Weight Composition and Hatchability of Hen Eggs Classic Reprint written by Horace Atwood and published by Forgotten Books. This book was released on 2018-02-22 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Some Factors Affecting the Weight, Composition and Hatchability of Hen Eggs The tests indicate that when fowls are fed too scantily the fertility of the eggs will be low, but those which are fertile seem to hatch practically as well as the fertile eggs laid by the fowls fed heavily. Hatch 5 indicates that after fowls have been laying heavily for a considerable length of time their eggs are less fertile and do not hatch so well as eggs laid by fowls which are just reaching or have reached their maximum egg production for the season. There seems to be no great difference in the vigor of the chicks from the two lots of fowls, although what difference there is seems to be in favor of the chicks from the fowls fed scantily, ex cept in the case of the last hatch. 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 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:
