Heat For Dairy Calf Housing PDF Download

Author: Michigan State University. Cooperative Extension Service
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309031818
Category : Science
Languages : en
Pages : 169

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Author:
Publisher: Hoard's Dairyman Books
ISBN: 9780932147233
Category : Technology & Engineering
Languages : en
Pages : 52

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Author: D'Anna J. B. Jensen
Publisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 64

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Author: Kimberly J. Reuscher
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Dairy cattle of all ages are at risk of thermal stress and understanding their behavior when exposed to environmental extremes is crucial to improving animal welfare. To evaluate these aspects, four experiments were conducted with lactating cows (2) and dairy calves (2). Each experiment was conducted with the objectives to evaluate the following: Chapter 2) Impact of high-speed air targeted at cow resting areas on resting behaviors and thermoregulatory responses in lactating cows; Chapter 3) the microclimate and resulting resting behavior in lactating cows in naturally vs. cross-ventilated barns; Chapter 4) the thermal comfort and preferences of dairy calves raised in paired outdoor hutches during summer time; Chapter 5) comparison of pair- vs. individually housed dairy calves in outdoor hutches during winter time. Chapter 2 showed the importance of providing at least 1 m/s of air over the cow resting area to reduce heat stress responses such as body temperature and respiration rate and improve lying times and milk yield. Chapter 3 documented the crucial aspect of providing consistent airspeeds among all stalls rather than only relying on the facility averages. As the variability in the airspeeds went up, so did the cows' lying times, which were driven by greater variability in the bout number and duration of the lying bouts. Chapter 4 illustrated how pair-housed calves strongly prefer to be together most of the time and develop a preference for ventilation (vs. no ventilation) as they age. This is an important consideration as two calves did increase the hutch THI more than a singular calf, especially during week 9 of life. Chapter 5 reported limited support for the benefits of pair housing over individual housing to help calves cope with cold stress. Two calves in the hutch increased the hutch temperature more than a singular calf which could be impactful in periods of cold stress. These findings contribute to our knowledge about dairy cattle behavior under thermal stress conditions, which can inform farm management and ventilation systems to enhance animal welfare and production for the long-term viability of the industry.

Author: National Research Council (U.S.). Committee on Physiological Effects of Environmental Factors on Animals
Publisher: National Academies
ISBN:
Category : Science
Languages : en
Pages : 390

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Bioclimatic factors and their measurement. Physiologic functions and measurement techniques. Animal characteristics in relation to environmental response. Environment and physiopathology. Design and execution of experiments using domestic animals. Development of research facilities. Research under field conditions.

Author: Lowell Stewart Hardin
Publisher:
ISBN:
Category : Cattle
Languages : en
Pages : 42

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Author: Anjali Aggarwal
Publisher: Springer Science & Business Media
ISBN: 813220879X
Category : Science
Languages : en
Pages : 200

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Dr. Anjali Aggarwal is working as a Senior Scientist at National Dairy Research Institute, Karnal (India). She holds a PhD degree in Animal Physiology and is involved in research and teaching at post-graduate level. Her area of research work is stress and environmental physiology. She has more than 50 publications, two technical bulletins, four manuals and many book chapters to her credit. She has successfully guided many post-graduate and PhD students. Her major research accomplishments are on microclimatic modification for alleviation of heat and cold stress, mist and fan cooling systems for cows and buffaloes, and use of wallowing tank in buffaloes. Her work involves the use of technology of supplementing micronutrients during dry period and early lactation to crossbred and indigenous cows for alleviating metabolic and oxidative stress and improved health and productivity. Studies are also done in her lab on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes as a result of exercise or exposure to heat stress. Dr. R.C. Upadhyay is working as Head, Dairy Cattle Physiology Division at National Dairy Research Institute, Karnal (India). He graduated in Veterinary Sciences and obtained his PhD degree in Animal Physiology. His area of recent research is climate change, stress, and environmental physiology. His major research accomplishment is on climate change impact assessment of milk production and growth in livestock. His work also involves studying methane conversion and emission factors for Indian livestock and use of IPCC methodology of methane inventory of Indian livestock. Heat shock protein-70 expression studies in cattle and buffaloes are also done in his lab. Draught animal power evaluation, fatigue assessment, work-rest cycle and work limiting factors form the highlights of his work. Studies on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes and electrocardiographic studies in cattle, buffalo, sheep and goat are also undertaken in his lab. He has more than 75 research papers, four books and several book chapters to his credit. Technologies developed and research done by him include methodology of methane measurement: open and closed circuit for cattle and buffaloes; inventory of methane emission from livestock using IPCC methodology; livestock stress index: thermal stress measurement based on physiological functions; and draught power evaluation system and large animal treadmill system. He received training in Radio-nuclides in medicine at Australian School of Nuclear Technology, Lucas heights, NSW, Australia in 1985 and Use of radioisotopes in cardiovascular investigations at CSIRO, Prospect, NSW, Australia, during 1985-86. He has guided several post-graduate and PhD students. He is recipient of Hari Om Ashram Award-1990 (ICAR) for outstanding research in animal sciences.

Author: Edward V. Hallahan
Publisher:
ISBN:
Category : Barns
Languages : en
Pages : 208

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Author: Nigel B. Cook
Publisher: Elsevier Health Sciences
ISBN: 0323678041
Category : Medical
Languages : en
Pages : 241

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Book Description
This issue of Veterinary Clinics: Food Animal Practice, Guest Edited by Dr. Nigel B. Cook, in collaboration with Consulting Editor Dr. Robert Smith, focuses on Housing to Optimize Comfort, Health and Productivity of Dairy Cattle. Article topics include: The housing dilemma: natural living vs. animal protection; Calf barn design and management; Lying time and its importance to the dairy cow: impact of stocking density and time budget stresses; Feeding behavior, feed space and bunk design, and management for adult dairy cattle; Maximizing comfort in tiestall housing; Free stall design and bedding management; Maternal behavior and design of the maternity pen; Housing the cow in transition to optimize early lactation performance; Ventilation systems for adult dairy cattle; Cooling systems for dairy cows; Designing dairy herds with automated milking systems; and Low stress handling areas for dairy cow barns.