Environmental Physiology of Livestock (ePub)

Contributors ix Foreword xi 1 From Heat Tolerance to Heat Stress Relief: An Evolution of Notions in Animal Farming 1 Amiel Berman 2 Physiological Basics of Temperature Regulation in Domestic Animals 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 and Regulatory 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 Reproductive Responses under Heat Stress 181 David Wolfenson and William W. Thatcher 11 Prospects for Improving Fertility during Heat Stress by Increasing Embryonic Resistance to Elevated Temperature 199 Peter J. Hansen 12 Environmental Heat Stress Impairs Placental Function, Fetal Growth and Development, and Postnatal Performance in Livestock 209 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 in Dairy Cattle Facilities 267 John R. Smith and J. P. Harner, III 16 Genotype by Environment Interactions in Commercial Populations 289 Ignacy Misztal and Peter Lovendahl 17 Responses of Poultry to Environmental Challenges 309 J. Brake and S. Yahav Index 337

Robert J. Collier is Professor and Head of the Department of Animal Science at the University of Arizona. His primary area of research is studying environmental effects on gene expression in domestic animals, utilizing both practical management models as well as controlled environmental facilities to modify environments around animals.

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