Stress In Poultry
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Stress In Poultry
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Author : Karen J. Clingerman
language : en
Publisher:
Release Date : 1990
Stress In Poultry written by Karen J. Clingerman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Poultry categories.
Stress In Poultry
DOWNLOAD
Author : Karen J Clingerman
language : en
Publisher:
Release Date : 1990
Stress In Poultry written by Karen J Clingerman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Poultry categories.
Poultry Production In Hot Climates
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Author : Nuhad Joseph Daghir
language : en
Publisher: CABI
Release Date : 2008
Poultry Production In Hot Climates written by Nuhad Joseph Daghir and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Business & Economics categories.
The poultry industry continues to expand in the warm regions of the world at a much faster rate than in temperate zones. Not only can it be quickly and easily developed in these hot climates but poultry meat and eggs can serve as important sources of animal protein in those areas of the world that have protein insufficiency. Fully revised and updated, this new edition describes how the detrimental effects of heat stress can be reduced through the manipulation of housing, breeding, nutrition and management, and includes new contributions on controlled-environment housing, waterfowl, and breeding fast-growing broilers.
Advances In Poultry Nutrition Research
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Author : Amlan Kumar Patra
language : en
Publisher: BoD – Books on Demand
Release Date : 2021-07-07
Advances In Poultry Nutrition Research written by Amlan Kumar Patra and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-07 with Cooking categories.
Due to the wide acceptance of poultry meat and eggs, poultry farming is the fastest growing global livestock industry. Nutrition plays a vital role in economic production and the maintenance of proper poultry health. Therefore, there is a great need to update balanced nutrient requirements for new breeds, utilize alternative feed resources, evaluate newer feed additives to optimize production while excluding antimicrobial feed additives and maintain overall health. The first section of this book contains six chapters that discuss the utilization of unconventional feeds, nanominerals to reduce mineral proportions in diets, and water intake affected by environmental temperature. The second section contains six chapters that describe proper nutritional management to improve gut health and immunity, the prevention of common diseases, and the amelioration of heat stress in poultry.
A Non Invasive Test Of Stress In Laying Hens
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Author : J. A. Downing
language : en
Publisher:
Release Date : 2001
A Non Invasive Test Of Stress In Laying Hens written by J. A. Downing and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Poultry categories.
Chicken Diseases
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Author : F. Otieno
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2016-05-11
Chicken Diseases written by F. Otieno and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-11 with categories.
A chicken is regarded to be in a state of good health when all of its body organs and systems are normal and perfectly functioning. Any alteration in the state of its body, or of any of its organs, which interferes with the proper performance of its function(s) is what is regarded as a disease. Naturally, chickens are flock animals, therefore, have the potential to spread very fast any contaminated disease amongst them. While on the contrary, it is a dream of every chicken keeper to want to raise healthy and disease free flock. The benefits of doing so can never be over emphasized. Some of the invaluable topics covered herein include: Signs exhibited by sick chickens. Stress in chickens (Causes and Control). Vices in Chickens (Causes and Control). Predisposing factors to chicken diseases. The most common chicken diseases (symptoms, causes, preventions and treatments). How to effectively deal with pests and diseases affecting chickens.
Aspects Of Adaptation Of Slow Growing Broilers And Broiler Parents To Heat Stress
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Author : Rudi Afnan
language : en
Publisher: Cuvillier Verlag
Release Date : 2006
Aspects Of Adaptation Of Slow Growing Broilers And Broiler Parents To Heat Stress written by Rudi Afnan and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Domestication And Early Experiences In Chickens
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Author : Pia Katrine Løtvedt
language : en
Publisher: Linköping University Electronic Press
Release Date : 2017-11-17
Domestication And Early Experiences In Chickens written by Pia Katrine Løtvedt and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-17 with categories.
A number of animal species have undergone domestication, the process of becoming adapted to living in captivity and in proximity to humans. Common for these species is that they have all developed certain traits, including changes to coat color, body size and level of fearfulness. This has been termed the domestic phenotype. Among these traits is also an attenuation of the response to stress, both behaviorally and physiologically. Thus, release of glucocorticoids such as cortisol or corticosterone is lower in domesticated species. However, the underlying mechanism for this is not yet well understood. In this thesis, we have investigated genetic mechanisms for the attenuation of the physiological stress response in ancestral chickens, the Red Junglefowl, and domesticated chickens, the White Leghorn. We found a number of genes that differed in expression between the two breeds in several tissues involved in the stress response. Among the most interesting findings were lower expression of genes involved in production and secretion of ACTH in the pituitary, and in the production of glucocorticoids in the adrenal glands, in the domesticated White Leghorns. We also found higher expression of the glucocorticoid receptor in White Leghorns, indicating that they may have a more efficient negative feedback of the physiological stress response. We then investigated the transcriptome of the chicken pituitary more closely, and we discovered that a number of genes highly involved in several important physiological axes showed differential expression between the ancestral and the domesticated breed. Among these were genes involved in the stress response, the reproductive system, and in metabolism and growth. As these traits are modified in domesticated species, our results suggest that changes to gene expression in the pituitary may be an important underlying factor of the domestic phenotype. A separate aim of this thesis was to investigate effects of hatching time in chickens on their subsequent phenotype. Time of hatching constitutes an early experience that may differ between individuals, and we therefore hypothesized that differences in hatching time would affect chickens later in life. While a number of studies have been performed on hatching time and post-hatch growth, very little work has been done on effects on behavior. We found that the time of hatching had sex-specific effects. Hatching times in females were negatively correlated with body weight, whereas in males, behaviors such as reaction to novelty and spatial learning were affected. As time of hatching is governed by various hormones, including thyroid hormone and corticosterone, we suggest that changes to the levels of these hormones could affect both hatching time and post-hatch phenotypes. Understanding these mechanisms better would be beneficial in terms of production, where batch homogeneity is important, in research on early experiences and the potential for maternal programming, and in evolutionary questions on trade-off between different life strategies.
Stress In Poultry
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Author : Karen J. Clingerman
language : en
Publisher:
Release Date : 1990
Stress In Poultry written by Karen J. Clingerman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Poultry categories.
Poultry Science
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Author : Colin G. Scanes
language : en
Publisher: Waveland Press
Release Date : 2019-11-06
Poultry Science written by Colin G. Scanes and has been published by Waveland Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-06 with Technology & Engineering categories.
Poultry production continues to make tremendous advances. This thoroughly revised fifth edition of Scanes’ seminal, comprehensive text presents students and professionals alike with valuable, research-based material relevant to all stages of a poultry career. Areas covered include global and commercial poultry production; poultry business organization; and production of meat chickens (broilers), turkeys, eggs, ducks, geese, game birds, and other poultry. Other chapters cover the fundamental science behind production: poultry biology, genetics, behavior, diseases/health, housing, ventilation, and processing. New or greatly expanded sections cover biosecurity; poultry stress/welfare; feed additives; food safety; incubation; controlling pests; poultry waste and environmental issues; brooding; and organic, free-range, and niche poultry production. “Points for Discussion” and “Deeper Dive” sections highlight key examples and provide further context and empirical data for critical areas in poultry production, giving students a first-hand look at issues in both small and large operations. The book concludes with an in-depth, invaluable chapter on applying for internships and positions for the start of a successful career.