Follow-up Q&A Session with the Panelists - Part 1

00:00 - Introduction 3:12 - Is there any research into vaccination being used several times before weaning? – Amelia 7:50 - Which respiratory vaccines do you think are most effective when administered shortly after arrival: intranasal or parenteral? Related subsequent question: are MLV IN vaccines less stressful than MLV parenteral vaccines? – John Richeson. 13:50 - Are we relying too heavily on antibody titers as a measure of vaccine success in a disease that may depend more on early innate and mucosal immune response? – John Ellis 20:37 - Could our vaccine methods be causing cattle to become sick from things we don’t vaccinate against? – Amelia 22:47 - Where does the increased performance asked of these cattle come into play? Metabolically and physiologically we are asking more than we were 50 years ago. – John Richeson 26:29 - Not all vaccines are the same what does a good vaccine do? – John Ellis 37:58 - Is “Prime Boost” real? – John Ellis 34:22 - Follow up to Over vaccinating: Straight weaned ranch calves with 3 round[s] of MLV, 60 days weaned and still get sick at the feedyard. [why would this happen?] – John Richeson 44:14 - Would a genomics study on incoming feedlot cattle to identify resilience markers for acute respiratory disease be useful? Related subsequent question: Is genetic selection for 'resilience' part of the answer? What would you select on to improve resistance to infection, to disease? – Amelia