Building a healthier Irish dairy herd through improved calf health

Main results:  In general the colostrum quality (112 g/l I dairy herds of mixed breed is high (50 g colostrum). Older parity cows, cows that smaller quantity of colostrum and cows tha with higher IgG concentration. Reducing colostrum is the most practical means by w  Calves fed 8.5% of birth bodyweight in concentration of IgG in serum in the first 3 Feeding calves transition milk subsequent and nasal score.  Over-supplementation of iodine in the pr immunity to calves, however, this is not Supplementation of the prepartum dairy c minimum requirements established by the N in calves at birth.  Feeding calves 15% instead of 10% of thei beginning and end of the preweaning sta weaning weight, and had no unfavourable volume of milk once a day or in two equal calf performance or health.  Colostrum with high levels of bacteria had dairy calf. Colostrum should be stored ≤4° passive transfer of immunoglobulins.