Genetics of colostrum, milk, and serum antibodies in dairy cattle : Implications for health and production
- Cordero Solórzano, Juan
DOIAbstract
Colostrum with sufficient IgG content is essential for the newborn calf, as it requires this passive immunity to survive during its rearing. Failure of passive transfer (FPT) occurs when a calf does not absorb enough antibodies (<10 g/L of IgG in serum) from the colostrum, which besides timely access to colostrum, can be due to low IgG production of the mother or poor IgG absorption of the calf. The aim of this thesis was to explore the genetics of antibody content in colostrum and newborn calf serum and how they correlate with production and health traits. The first three studies were conducted on Swedish Red and Swedish Holstein animals from three experimental farms in Sweden. Colostrum samples from 1313 cows calving from January 2015 to ...
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