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Nutrition and Immune Function

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Nutrition and Immune Function

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    1. Nutrition and Immune Function

    2. New Born: Passive Transfer of Immunity Immunity received from ingestion of colostrum. Influenced by late term nutrition of the dam.

    3. Colostrum Composition vs. Whole Milk

    4. Colostrum is primarily made during the last 4 – 6 weeks of gestation. Calves need from 150 to 200 grams of IG for good passive transfer.

    5. Late Gestation Cow Nutrition and Calf Survival

    6. Ig Levels in Blood and Dairy Calf Mortality

    7. Serum IgG Levels at 24 Hrs. and Calf Health and Gain to Weaning

    8. Calf Plasma Protein Status at 24 Hrs. and Later Feedlot Health and Gain

    9. Precalving nutrition affects colostrum yield, calf nursing and calf serum Ig concentration.

    10. Prepartum Nutrition of Cow and Colostrum Yield

    11. Cow BCS and Time to Calf First Standing

    12. Time of Colostrum Intake and Total Ig Absorption

    13. Cow BCS and Calf Serum IgG (mg/dl) at 24 Hours

    14. Cow Pre-Calving Protein Intake and Calf Serum IgG1, mg/ml

    15. If you know there is a problem, can you use commercial colostrum substitutes and keep the calf healthy?

    16. Commercial vs. Natural Colostrum and Calf Serum IgG at 24 Hours and 30 Day Health

    17. Nutrient Effects and Immunity at Other Times in the Animal’s Life. When Stress Occurs. 14.4 % of all cattle placed on feed are treated for respiratory disease. 4 mil head .83 % of all cattle placed on feed die due to respiratory disease. 241,000 head $16.26 treatment costs per head for respiratory disease NAHMS Feedlot 99 and NASS reports

    18. What impact does nutrition have on this ? immunity or ? disease susceptibility?

    19. Calves arriving at feedyards have been shown to be deficient in K, Cu, Zn and some other minerals. Reasons are ? feed intake and ? urinary excretion.

    20. Selenium and Copper deficient calves have ? humoral and cell mediated immunity. Similar effects for selenium and vitamin E deficiencies have been noted for horse, swine and sheep.

    21. Receiving Ration Potassium Level and Feeder Calf Health

    22. Chromium and Response of Stressed Calves – 5 Year Summary

    23. Source and Level of Zn, Mn, Cu, Co and Feedlot Health

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