Quality of colostrum from jersey cows and transfer of passive immunity to born
Keywords:
Calves, gamma Glutamyltransferase, Immunoglobulins, Proteins, Brix, refratômetro de BrixAbstract
The transfer of immunoglobulins from the serum to the mammary gland begins weeks before delivery, reaching its peak between the first and third day of the newborn birth. Colostrum is the first milk secreted by the sows. The fluid is rich in proteins and immunoglobulins, which makes it vital for the survival of neonates, as the pups are born with agammaglobulinemic. Thus, this study aimed to evaluate the quality of colostrum from primiparous and multiparous Jersey cows and the transfer of passive immunity to newborns born in Munhoz de Mello, Paraná. Three primiparous cows and thirteen multiparous cows were used. The calves were fed with the mother's own colostrum, 2 liters, and the concentration was previously evaluated using a Brix refractometer. Serum from calves was collected 24 hours after birth and the levels of total protein (PT) and gamma glutamyltransferase (GGT) were measured to assess the passive transfer of immunity. Analysis of variance was used to compare primiparous and multiparous cows. The results demonstrated that there is no difference between the colostrum of primiparous and multiparous cows and that there was no failure in the transfer of passive immunity (FTIP). Thus, it was possible to conclude that there was a good transfer of passive immunity in calves; however, a study with a larger number of primiparous is recommended.
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