Collier Environmental Physiology of Livestock

1. Auflage 2011
ISBN: 978-1-119-94907-7
Verlag: John Wiley & Sons
Format: EPUB
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 360 Seiten, E-Book

Environmental stress is one of the most significant factorsaffecting livestock performance and health, and it is only expectedto increase with effects of global warming. EnvironmentalPhysiology of Livestock brings together the latest research onenvironmental physiology, summarizing progress in the field andproviding directions for future research. Recent developments inestimating heat stress loads are discussed, as well as key studiesin metabolism, reproduction, and genetic expressions.
Environmental Physiology of Livestock begins with asurvey of current heat indexing tools, highlighting recentdiscoveries in animal physiology, changes in productivity levels,and new technologies available to better estimate stress response.Using this synopsis as a point of orientation, later chapters honein on major effects of heat stress, including changing metabolicpathways and nutrient requirements, endocrine regulation ofacclimation to environmental stress, and reduced reproductiveperformance. The text concludes with a thorough discussion ofenvironmental effects on gene expressions, providing importantinsight for future breeding practices.
Environmental Physiology of Livestock is a globallycontributed volume and a key resource for animal scienceresearchers, geneticists, and breeders.

Autoren/Hrsg.

Collier, R. J.

Collier, J. L.

Inhaltsverzeichnis

Contributors ix
Foreword xi
1 From Heat Tolerance to Heat Stress Relief: An Evolution ofNotions in Animal Farming 1
Amiel Berman
2 Physiological Basics of Temperature Regulation in DomesticAnimals 17
Donald E. Spiers
3 Heat Stress and Evaporative Cooling 35
Kifle G. Gebremedhin
4 Regulation of Acclimation to Environmental Stress 49
Kajal Sankar Roy and Robert J. Collier
5 Environment and Animal Well-Being 65
S. D. Eicher
6 Effects of Environment on Metabolism 81
Lance Baumgard and Robert P. Rhoads
7 Impact of Hot Environment on Nutrient Requirements 101
Umberto Bernabucci
8 Effects of Environment on Animal Health: Mechanisms andRegulatory Inputs 129
Ted H. Elsasser, Cong-Jun Li, Jessica Shaffer, and Robert J.Collier
9 Effect of Environment on Immune Functions 165
Nicola Lacetera
10 Strategies for Improvement of Thermal and ReproductiveResponses under Heat Stress 181
David Wolfenson and William W. Thatcher
11 Prospects for Improving Fertility during Heat Stress byIncreasing Embryonic Resistance to Elevated Temperature 199
Peter J. Hansen
12 Environmental Heat Stress Impairs Placental Function, FetalGrowth and Development, and Postnatal Performance in Livestock209
Dustin T. Yates, Xiaochuan Chen, and Sean W. Limesand
13 Effects of Photoperiod on Domestic Animals 229
Geoffrey E. Dahl and Izabella M. Thompson
14 Rethinking Heat Index Tools for Livestock 243
J. B. Gaughan, T. L. Mader, and K. G. Gebremedhin
15 Strategies to Reduce the Impact of Heat and Cold Stress inDairy Cattle Facilities 267
John R. Smith and J. P. Harner, III
16 Genotype by Environment Interactions in CommercialPopulations 289
Ignacy Misztal and Peter Lovendahl
17 Responses of Poultry to Environmental Challenges 309
J. Brake and S. Yahav
Index 337