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“Take Care” To: Process and Protect Them Properly

“Take Care” To: Process and Protect Them Properly. Philip W. Widel DVM Technical Services Veterinarian Boehringer Ingelheim Vetmedica, Inc. Process and Protect.

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“Take Care” To: Process and Protect Them Properly

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  1. “Take Care”To: Process and Protect Them Properly Philip W. Widel DVM Technical Services Veterinarian Boehringer Ingelheim Vetmedica, Inc.

  2. Process and Protect • Our goals should be to process in a manner to minimize tissue (carcass) damage while providing maximum protection from the products we use

  3. To Understand Protection Is to Understand Immunity to Disease • Immunity • Ability to protect against specific diseases by producing antibodies and cellular immunity against those disease organisms

  4. Protective Level • A relative term. • The level of immunity to protect will depend upon the severity of the challenge.

  5. How Immunization Occurs • By natural exposure - disease occurrence • By vaccination with biological product • By transfer of passive immunity in colostrum or antiserum (temporary)

  6. Objectives of Vaccination • Individual protection, herd immunity and bio-security • Reduce reproductive losses • Improve performance • Program participation - requirements to increase value and marketability

  7. KEY DEFINITIONS • Vaccination • application of a vaccine • Immunization • the process of making immune

  8. The Healthy Herd (Animal) Resistance Levels Challenge Time

  9. Effect of Increased Challenge Resistance Disease Symptoms Levels Challenge Time

  10. Effect of Declining Immunity Resistance Challenge Levels Disease Symptoms Time

  11. Goal of Vaccination Program Resistance Increased Resistance Through Proper Vaccination and Booster Levels Challenge Time

  12. Importance of Proper Timing Resistance Levels Challenge Time

  13. Ability of Animal to Properly Respond to Vaccination: Age and Maternal Interference Response Levels Stress Nutrition Parasitism Vaccine considerations: Modified Live Killed Proper Booster Vaccinations Storage, Preparation and Administration Further Considerations

  14. Additive Stress Immunity Wean Transport Process Challenge Diet Change Weather

  15. Vaccine Considerations • Modified Live Viral Products • Killed Viral Products • Proper Boostering of Vaccinations

  16. Types of Vaccines Used • Killed or inactivated • Includes killed or inactivated viruses, bacterins, and toxoids

  17. Killed Virus Vaccine Advantages • Safe in pregnant animals • Labeled for use in calves nursing pregnant cows • Handling considerations • No mixing • Stable

  18. Killed Virus Vaccine Disadvantages • Require an adjuvant • Injection site reactions • Less cell mediated immunity (cytototoxic T cells) • Slower immune system response • Require multiple doses • 1st dose = primes/sensitizes • 2nd dose = immunizes • Hypersensitivity risk

  19. Immune Response Following Vaccination (KV) Protective Level Initial Vaccination Time

  20. Stimulation of Immunity with a Killed Product Protective Level Initial Vaccination Booster Time

  21. Immune Response Following Vaccination Protective Level Dose Administered Months Later Initial Vaccination Time

  22. The Need for Boosters • Most bacterins and clostridials also need to be properly boostered. • Adjuvants can make a difference in the need to booster.

  23. MLV Vaccine Advantages • Rapid, longer-lasting protection • Stimulate antibody and cell mediated immunity • Stimulate interferon production • Stimulate immune response more similar to natural infection • Less expensive • Less irritation - no adjuvant - smaller dose

  24. MLV vaccines • One dose starts initial immune system stimulation. Organism continues to grow (replicate) so that stimulation of the immune system is continued until a level of immunity is created that can overwhelm and destroy the organism.

  25. MLV Vaccine Disadvantages • Immunosuppression (stress) -- BVD primarily • Handling considerations • UV light, temperature, mixing, storage • May revert to virulent state (rare!!!!) • Label precautions with pregnancy

  26. Storage, Preparation and Administration • Follow label instructions. • Avoid heat, freezing temperatures and sunlight. • Avoid disinfectants with MLV products. • Administer SQ or IM as labeled and in accordance with BQA principles.

  27. Successful Immunization Requires • Health susceptible animal • Proper administration • Safe, viable and potent vaccine

  28. When Should We Vaccinate?

  29. Not • Whenever we can catch the cows • After we finish harvest • The next rainy day • When the kids and the neighbors are available to help

  30. CONSIDER AN ADULT COW CYCLE 60 DAY BREEDING SEASON Preg Check

  31. Where Do We Vaccinate?

  32. NCBA recommends that all injections whether subcutaneous or intramuscular be made in front of the shoulder.

  33. Calf was slaughtered over a year after being vaccinated intramuscularly at branding time. Study run by Colorado State University.

  34. Injection - SiteSubcutaneous“Knots”

  35. Subcutaneous Vaccine Reaction –”knot”

  36. Subcutaneous Injection “Knots” Should Not Be A Pricing Issue • Are not a defect to the hide, carcass, or other salable product • Are of no concern to the health and quality of the animal • Indicates that the animal has been vaccinated, (a practice to be encouraged) and that the vaccination response has not been impeded • And, SHOULD NOT be a point for pricing discount of the cattle

  37. Subcutaneous Injection “Knots” Should Not Be A Pricing Issue The NCBA Beef Quality Assurance Task Force encourages all individuals buying feeder and/or finished cattle to make every effort to see that any such surface vaccine blemishes (knots) are NOT noted as a value discounting issue.

  38. Subcutaneous Vaccine Reaction “Not an Abscess”

  39. Same bull, 10 months later/ Swelling is gone

  40. Feedlot steer with vaccine “knot”

  41. Subcutanous vaccine “knots” come off when the hide is pulled

  42. The “Not My Problem” Syndrome Will Not Fix the Injection-Site Lesion Problem Every Cattleman, Veterinarian and Drug/ Vaccine Manufacturer Has a Responsibility

  43. Questions???? ABCD

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