Dr. Lance Baumgard, Iowa State University; Dr. Rosemarie Zimbelman Dairy Nutrition Services; Dr. Bob Collier, University of Idaho
Summer heat is at full strength and that means heat stress for your animals. Tonight, we have brought together a powerhouse roundtable of experts in the field of heat stress management to talk through the physiology and mechanisms for effectively managing the heat.
Dr. Bob Collier discussed how we have changed our cows in the past 50 years to produce milk production which increases maintenance requirements, making them more sensitive to heat stress and more resistant to cold. 2:50
Dr. Rosemarie Zimbelman discussed some of the advancing technology seen over the past 40 years such as evaporative cooling methods and nutritional strategies improving cattle comfort. 6:10
Dr. Bob Collier discussed the possibility of higher sweat rates in cows but also the negative effect which would be lower milk yields. 16:38
Dr. Rosemarie Zimbelman discussed altering diets in the summer months to reduce heat stress. 20:00
Dr. Lance Baumgard discussed the consequences of heat stress emanating from the gut (leaky gut). This causes an immune response, leading to heat stress and infections like mastitis. 22:06
Dr. Bob Collier discussed the advantage and importance of high-quality water and cost-effective milk production. 31:56
Dr. Lance Baumgard discussed the negative consequences of in utero heat stress and the calf becoming less feed efficient and less productive. 49:52
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