What Is Calf Colostrum?
- Nutrient and immunoglobulin rich fluid is essential in ensuring the survival of any newborn calf.
- The only source of antibodies from the dam to provide passive immunity
- IgG is the class of antibody responsible for the defence of the body against invading bacteria and viruses
The 3 Q’s of Calf Colostrum Management:
- High quality calf colostrum contains 50g/l IgG mg
- IgG concentration depends on disease history, volume of colostrum produced, breed and late pregnancy nutrition
- Type of antibodies in colostrum depends on the antigens to which the cow/ewe has been exposed to, including vaccination and disease
- Calves need 10% of their birth weight in colostrum within the first 6 hours,
- The lining of the intestine can absorb IgG’s at birth
- Rapid growth of the intestine after birth results in the replacement of this lining within 24-36 hours
- Absorption ceases and is termed closure