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- Title
Current Diagnostic Methods for Assessing Transfer of Passive Immunity in Calves and Possible Improvements: A Literature Review.
- Authors
de Souza, Rayanne Soalheiro; dos Santos, Lucas Braga Costa; Melo, Isabela Oliveira; Cerqueira, Daiane Maria; Dumas, Juliana Vieira; Leme, Fabiola de Oliveira Paes; Moreira, Tiago Facury; Meneses, Rodrigo Melo; de Carvalho, Antônio Ultimo; Facury-Filho, Elias Jorge
- Abstract
Simple Summary: The transfer of passive immunity (TPI) from cows to calves needs to be routinely assessed on farms and in field research. The gold standard method for assessing TPI is radial immunodiffusion (RID) because it directly assesses the immunoglobulin G (IgG) concentration in calf serum samples. In addition to RID, there are several other methods available for the assessment of TPI which determine the concentration of IgG or other serum components. It is known that several components present in the colostrum are absorbed by the calves and aid passive immunity. We conducted a literature review of the methods scientifically reported by experts in the field. Several direct or indirect methods can be used to assess immunoglobulin G (IgG) concentrations in calves, which evaluates the transfer of passive immunity (TPI). Radial immunodiffusion (RID) is the gold standard method to measure serum IgG in bovines. Previous studies have shown that colostrum provides several molecules in addition to immunoglobulins, which play an important role in the passive immunity of the calf. However, no studies have yet determined the level of interference of these components in the immunity, health and survival of calves. In this sense, the objective of this study is to review the methods of evaluation available for the laboratory and field diagnosis of TPI in calves and discuss the main aspects of each technique. Several methods available for TPI evaluation in calves may provide insights into the various components of colostrum involved in passive immunity.
- Subjects
CALVES; IMMUNITY; LITERATURE reviews; IMMUNOGLOBULINS; CLINICAL pathology; SENSES
- Publication
Animals (2076-2615), 2021, Vol 11, Issue 10, p2963
- ISSN
2076-2615
- Publication type
Article
- DOI
10.3390/ani11102963