Nutrition and Immune Function

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Nutrition and Immune Function
Dr. John Johns Introduction to Animal and Food
Sciences Agent In-Service
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New Born Passive Transfer of ImmunityImmunity
received from ingestion of colostrum.Influenced
by late term nutrition of the dam.
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Colostrum Composition vs. Whole Milk
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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.
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Late Gestation Cow Nutrition and Calf Survival
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Ig Levels in Blood and Dairy Calf Mortality
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Serum IgG Levels at 24 Hrs. and Calf Health and
Gain to Weaning
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Calf Plasma Protein Status at 24 Hrs. and Later
Feedlot Health and Gain
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Precalving nutrition affects colostrum yield,
calf nursing and calf serum Ig concentration.
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Prepartum Nutrition of Cow and Colostrum Yield
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Cow BCS and Time to Calf First Standing
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Time of Colostrum Intake and Total Ig Absorption
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Cow BCS and Calf Serum IgG (mg/dl) at 24 Hours
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Cow Pre-Calving Protein Intake and Calf Serum
IgG1, mg/ml
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If you know there is a problem, can you use
commercial colostrum substitutes and keep the
calf healthy?
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Commercial vs. Natural Colostrum and Calf Serum
IgG at 24 Hours and 30 Day Health
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Nutrient Effects and Immunity at Other Times in
the Animals 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

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What impact does nutrition have on this ?
immunity or ? disease susceptibility?
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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.
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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.
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Receiving Ration Potassium Level and Feeder Calf
Health
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Chromium and Response of Stressed Calves 5 Year
Summary
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Source and Level of Zn, Mn, Cu, Co and Feedlot
Health