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 Some Factors Affecting the Weight Composition and Hatchability of Hen Eggs written by Horace Atwood and published by . This book was released on 1914 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Factors Affecting the Weight Composition and Hatchability of Hen Eggs written by Arthur L. Dacy and published by . This book was released on 1914 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Factors Affecting the Weight of Eggs Technical Classic Reprint written by Horace Atwood and published by Forgotten Books. This book was released on 2017-11-06 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Some Factors Affecting the Weight of Eggs (Technical) Gilbert (1891) found that the eggs laid by hens in confinement were not SO large as those laid by the same hens When they had free range. Whether this result was due to. The additional exercise or to some other factor is impossible to determine as Atwood (1922) in one case found the eggs larger and m another case Slightly smaller as the result of confinement. The additional exercise resulting from running at large when taken in connection with a more perfectly balanced ration which frequently accompanies free range may be the means of increasing the egg weight. 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 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 Factors Affecting the Hatchability of Hen s Eggs with Special Reference to the Physical Factors written by Norma Augusta Frank and published by . This book was released on 1928 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Genetic and Environmental Factors Affecting the Hatchability of Hens Eggs written by John Bryant Lupton and published by . This book was released on 1926 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hen Eggs written by Takehiko Yamamoto and published by CRC Press. This book was released on 2018-05-04 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The egg is a chemical storehouse-within an incubating egg a complicated set of chemical reactions take place that convert the chemicals into a living animal. Using hen eggs as a model, this new text explores the use of eggs for food, industrial, and pharmaceutical applications. It covers the chemistry, biology, and function of lipids; carbohydrates; proteins; yolk antibody (IgY); and other materials of eggs. The novel merits of egg materials over others used in the same products are also discussed. These areas of egg technology have never been compiled before in one source.
Download or read book Genetics of the Fowl written by F. B. Hutt and published by Norton Creek Press. This book was released on 2003-05 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: This has been the indispensable companion of chicken breeders since its introduction in 1949. Chapters include the genetics of plumage, egg production, body size, disease resistance, and much more. (Animals/Pets)
Download or read book Commercial Poultry Nutrition written by S. Leeson and published by Nottingham University Press. This book was released on 2009-04-01 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering a variety of essential topics relating to commercial poultry nutrition and production—including feeding systems and poultry diets—this complete reference is ideal for professionals in the poultry-feed industries, veterinarians, nutritionists, and farm managers. Detailed and accessible, the guide analyzes commercial poultry production at a worldwide level and outlines the importance it holds for maintaining essential food supplies. With ingredient evaluations and diet formulations, the study's compressive models for feeding programs target a wide range of commercially prominent poultry, including laying hens, broiler chickens, turkeys, ducks, geese, and game birds, among others.
Download or read book Feeding Poultry written by Gustave F. Heuser and published by Norton Creek Press. This book was released on 2003-05 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feeding Poultry is required reading for anyone interested in giving their flocks a better diet. First published in 1955, this book is modern enough that no important point is overlooked, yet old enough that free range, green feed, home-grown grains, and small flocks are given due attention. Written by pioneering poultry scientist G. F. Heuser of Cornell University, the book is aimed at practical poultrymen in addition to poultry scientists, and this makes it more accessible than more recent works. This book is part of the Norton Creek Classics series; books from our past with an important role to play in our future. Feeding Poultry is volume 4 in the Norton Creek Classics series. Visit http: //www.nortoncreekpress.com for more of these practical, best-of-breed poultry books.
Download or read book The Chicken Encyclopedia written by Gail Damerow and published by Storey Publishing. This book was released on 2012-01-31 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: From addled to wind egg and crossed beak to zygote, the terminology of everything chicken is demystified in The Chicken Encyclopedia. Complete with breed descriptions, common medical concerns, and plenty of chicken trivia, this illustrated A-to-Z reference guide is both informative and entertaining. Covering tail types, breeding, molting, communication, and much more, Gail Damerow provides answers to all of your chicken questions and quandaries. Even seasoned chicken farmers are sure to discover new information about the multifaceted world of these fascinating birds.
Download or read book Egg Innovations and Strategies for Improvements written by Patricia Hester and published by Academic Press. This book was released on 2016-12-19 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Egg Innovations and Strategies for Improvements examines the production of eggs from their development to human consumption. Chapters also address consumer acceptance, quality control, regulatory aspects, cost and risk analyses, and research trends. Eggs are a rich source of macro- and micronutrients which are consumed not only by themselves, but also within the matrix of food products, such as pastas, cakes, and pastries. A wholesome, versatile food with a balanced array of essential nutrients, eggs are a stable of the human diet. Emerging strategies entail improvements to the composition of eggs via fortification or biological enrichment of hen's feed with polyunsaturated fatty acids, antioxidants, vitamins, or minerals. Conversely, eggs can be a source of food-borne disease or pollutants that can have effects on not only human health, but also egg production and commercial viability. Written by an international team of experts, the book presents a unique overview of the biology and science of egg production, nutrient profiling, disease, and modes for increasing their production and quality. Designed for poultry and food scientists, technologists, microbiologists, and workers in public health and the food and egg industries, the book is valuable as an industrial reference and as a resource in academic libraries. Focuses on the production and food science aspects of eggs Includes a broad range of microbial contaminants, their risks, and prevention, as well as non-microbial contaminant risks Presents analytical techniques for practical application
Download or read book Nutrient Requirements of Poultry written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference for poultry nutrition has been updated for the first time since 1984. The chapter on general considerations concerning individual nutrients and water has been greatly expanded and includes, for the first time, equations for predicting the energy value of individual feed ingredients from their proximate composition. This volume includes the latest information on the nutrient requirements of meat- and egg-type chickens, incorporating data on brown-egg strains, turkeys, geese, ducks, pheasants, Japanese quail, and Bobwhite quail. This publication also contains new appendix tables that document in detail the scientific information used to derive the nutrient requirements appearing in the summary tables for each species of bird.
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 Growth of Farm Animals 3rd Edition written by Tony Leonard John Lawrence and published by CABI. This book was released on 2012 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of the processes that change the shape and composition of farm animals is fundamental to all aspects of production. Updated to include new chapters on avian growth and global warming, and citing new research throughout, this comprehensive textbook provides key information on how animals grow and change in shape and composition, and the factors that affect these processes. Presented in a larger format with new photographs and focus boxes, this third edition continues to fill the important role of helping to understand how the basics of growth must be thoroughly understood if farm animals are to be used efficiently and humanely in producing food for mankind.
Download or read book Improving the Safety and Quality of Eggs and Egg Products written by F Van Immerseel and published by Elsevier. This book was released on 2011-08-19 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eggs are economical and of high nutritional value, yet can also be a source of foodborne disease. Understanding of the factors influencing egg quality has increased in recent years and new technologies to assure egg safety have been developed. Improving the safety and quality of eggs and egg products reviews recent research in these areasVolume 2 focuses on egg safety and nutritional quality. Part one provides an overview of egg contaminants, covering both microbial pathogens and chemical residues. Salmonella control in laying hens is the focus of part two. Chapters cover essential topics such as monitoring and control procedures in laying flocks and egg decontamination methods. Finally, part three looks at the role of eggs in nutrition and other health applications. Chapters cover dietary cholesterol, egg allergy, egg enrichment and bioactive fractions of eggs, among other topics.With its distinguished editors and international team of contributors, Volume 2 of Improving the safety and quality of eggs and egg products is an essential reference for managers in the egg industry, professionals in the food industry using eggs as ingredients and all those with a research interest in the subject. Focuses on egg safety and nutritional quality with reference to egg contaminants such as Salmonella Enteritidis Chapters discuss essential topics such as monitoring and control procedures in laying flocks and egg decontamination methods Presents a comprehensive overview of the role of eggs in nutrition and other health applications including dietary cholesterol, egg allergy, egg enrichment and bioactive fractions of eggs
