Opportunities For Exercise During Pullet Rearing
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Opportunities For Exercise During Pullet Rearing
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Author : Teresa Casey-Trott
language : en
Publisher:
Release Date : 2016
Opportunities For Exercise During Pullet Rearing written by Teresa Casey-Trott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
This thesis is an investigation of the effect of providing opportunities for exercise on long term bone health of laying hens, with an emphasis on keel bone damage. Osteoporosis in laying hens is a welfare concern as it increases the risk of bone fractures. The keel bone is especially susceptible to fracture during the laying period. Providing opportunities for exercise during pullet rearing, a period of substantial musculoskeletal growth, offers a proactive approach to reducing osteoporosis by stimulating osteogenesis. The main objective was to determine whether rearing environments that offer different opportunities for exercise have long term effects on bone health and keel bone damage of laying hens. A secondary objective was to determine whether adult housing systems that offer different opportunities for exercise have an effect on bone health and keel bone damage of laying hens. Additionally, behavioural differences between hens with or without keel bone fractures were assessed, and an accelerometer to measure inactivity in laying hens was validated. Aviary-reared pullets had greater values for bone cross-sectional area, bone mineral density, bone mineral content, and bone breaking strength in wing and leg bones compared to bones of conventionally-reared pullets. Rearing effects on several bone composition measures were maintained through the end-of-lay, with aviary-reared hens having greater values for bone cross-sectional area and bone mineral content compared to conventionally-reared hens; however, bone mineral density was greater in conventionally-reared hens. Hens in large furnished cages had greater values for bone mineral density and content compared to adult hens housed in conventional cages. Aviary-reared hens had a lower prevalence of keel bone fractures throughout the laying period compared to conventionally-reared hens, with no effect of adult housing. Hens with keel fractures perched more and stood less than hens without keel fractures. Further investigation into whether these behavioural differences cause keel damage, or are a coping strategy resulting from keel damage is warranted. Future studies using the accelerometer validated within this thesis to quantify inactivity levels in laying hens may be useful in measuring changes in activity as a result of keel damage or other pain related conditions in laying hens.
Advances In Poultry Welfare
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Author :
language : en
Publisher: Woodhead Publishing
Release Date : 2017-11-30
Advances In Poultry Welfare written by and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-30 with Technology & Engineering categories.
Advances in Poultry Welfare provides a targeted overview of contemporary developments in poultry welfare. The reviews in the volume address topical issues related to poultry welfare research and assessment, with a focus on identifying practical strategies for improvement as well as information gaps that remain to be filled. Part One provides an introduction to poultry production systems and gives a broad overview of current poultry welfare issues. Part Two moves on to review several aspects of poultry management, focusing on hatchery practices, early rearing, and slaughter. Part Three deals with welfare assessment on the farm, while Part Four explores continuing challenges, such as feather pecking and skeletal problems. This is followed in Part Five by a discussion of emerging issues, with chapters covering alternative parasite control methods, backyard poultry production, mass depopulation, and genetic approaches to reducing the impact of environmental stressors on welfare. This book is an essential part of the wider ranging series Advances in Farm Animal Welfare, with coverage of cattle, sheep, pigs, and poultry. With its expert editor and international team of contributors, Advances in Poultry Welfare is a key reference tool for welfare research scientists and students, veterinarians involved in welfare assessment, and indeed anyone with a professional interest in the welfare of poultry. Provides in-depth reviews of emerging topics, research and applications in poultry welfare Integral part of a wider series, Advances in Agricultural Animal Welfare, which will provide comprehensive coverage of animal welfare of the world’s major farmed animals Covers a range of topical issues within the field, from beak-trimming and skeletal problems, to early rearing and the design and management of poultry production systems Edited by a distinguished leader in the field
Perspectives In Avian Skeletal Systems And Skeletal Abnormalities
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Author : Chongxiao (Sean) Chen
language : en
Publisher: Frontiers Media SA
Release Date : 2023-10-16
Perspectives In Avian Skeletal Systems And Skeletal Abnormalities written by Chongxiao (Sean) Chen and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-16 with Science categories.
The avian skeletal system is drawing increasing attention from researchers because it serves as a unique research model to study bone metabolism and pathologies, as well as the importance of bone health and its relationship with animal productivity and welfare. The avian skeleton is a delicate system providing structural support to the bird and minerals for eggshell formation, meanwhile, functioning as an immune organ. There is a lack of complete understanding of the physiological difference between mammalian and avian bones, the impact of genetic improvements, the interaction between immunity and bone health, the avian bone 3D structural development and turnover, the biological function of avian bone, and its relationship with animal well-being. Additionally, skeletal abnormalities can have a serious effect on poultry farming whereby conditions such as osteomyelitis, rickets and chondrodystrophy, among others, can cause changes in gait patterns, reduced walking ability and other pathophysiologies with subsequent detrimental effects on feed conversion and growth, as well as economic losses.
Behavior And Welfare Of The Individual Within Large Commercially Relevant Groups
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Author : Michael Toscano
language : en
Publisher: Frontiers Media SA
Release Date : 2021-05-18
Behavior And Welfare Of The Individual Within Large Commercially Relevant Groups written by Michael Toscano and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-18 with Medical categories.
Mineral Nutrition Of Livestock 5th Edition
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Author : Neville F. Suttle
language : en
Publisher: CABI
Release Date : 2022-05-30
Mineral Nutrition Of Livestock 5th Edition written by Neville F. Suttle and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-30 with Technology & Engineering categories.
The fifth edition of this important book reviews recent advances in livestock mineral nutrition, updated throughout with new references that reflect the growing complexity of mineral metabolism. Major related themes covered include the assessment of the 'mineral value' of feeds, the false hopes placed on organic mineral supplements and limiting the 'mineral footprint' of livestock production to lower environmental pollution. Following a clear and easy to reference structure, the book also considers potential pitfalls, such as misleading estimates of mineral requirements for growth, and misinterpretation of genomic markers for mineral requirements and bioavailability of supplements. An essential resource for researchers and students in animal nutrition, agriculture and veterinary medicine, this book also forms a useful reference for veterinary practitioners and those concerned with human nutrition and environmental protection.
Environmentally Sustainable Livestock Production
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Author : Ilkka Leinonen
language : en
Publisher: MDPI
Release Date : 2019-01-25
Environmentally Sustainable Livestock Production written by Ilkka Leinonen and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-25 with Environmental sciences categories.
This book is a printed edition of the Special Issue "Environmentally Sustainable Livestock Production" that was published in Sustainability
Egg Innovations And Strategies For Improvements
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Author : Patricia Hester
language : en
Publisher: Academic Press
Release Date : 2016-12-19
Egg Innovations And Strategies For Improvements written by Patricia Hester and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-19 with Technology & Engineering categories.
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
How To Raise Poultry
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Author : Christine Heinrichs
language : en
Publisher: Voyageur Press (MN)
Release Date : 2009-04-15
How To Raise Poultry written by Christine Heinrichs and has been published by Voyageur Press (MN) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-15 with Technology & Engineering categories.
Everything you need to know about raising poultry—waterfowl, game birds, turkeys, pigeons, or ratites (ostriches, emus, and rheas)—with instructions for feeding, housing, caring for, showing, and marketing each species.
Bioprocesses In Food Industry
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Author : Ray Underwood
language : en
Publisher: Scientific e-Resources
Release Date : 2018-10-08
Bioprocesses In Food Industry written by Ray Underwood and has been published by Scientific e-Resources this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-08 with categories.
Bioprocessing has been used for a long time in the production of food. In fact, as early as 3,500 B.C., Sumerian brewers were using bioprocessing to create a popular beverage many drinkers still enjoy today. Bioprocessing, as the name suggests, uses living organisms and their components in the creation of new products. Bioprocessing is often used to manufacture pharmaceuticals, sustainable materials, alternative fuels, and even many of the foods we enjoy. Biotechnology as applied to food processing in most developing countries makes use of microbial inoculants to enhance properties such as the taste, aroma, shelf-life, texture and nutritional value of foods. The process whereby micro-organisms and their enzymes bring about these desirable changes in food materials is known as fermentation. Fermentation processing is also widely applied in the production of microbial cultures, enzymes, flavours, fragrances, food additives and a range of other high value-added products. These high value products are increasingly produced in more technologically advanced developing countries for use in their food and non-food processing applications. Many of these high value products are also imported by developing countries for use in their food-processing applications. Food, food-biocatalists and bioprocessing industries face great challenges in order to develop and establish systems to develop high quality, safety foods, as well as feeds and other industrial goods, environmentally acceptable and in a sustainable way. The text is supported by numerous clear informative diagrams. The book would be highly useful to the postgraduate students and researchers of applied biology, biotechnology, microbiology and biochemical engineering.
The Poultry Keeper S Guide Practical Methods Of Breeding Rearing And Feeding All Kinds Of Poultry Etc The Sixth Edition Enlarged And Improved
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Author : John M. MOFFATT (of London.)
language : en
Publisher:
Release Date : 1853
The Poultry Keeper S Guide Practical Methods Of Breeding Rearing And Feeding All Kinds Of Poultry Etc The Sixth Edition Enlarged And Improved written by John M. MOFFATT (of London.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1853 with categories.