Immunoglobulin g levels in fetal and newborn tammar wallabies (Macropus eugenii)

E. M. Deane*, D. W. Cooper, M. B. Renfreec

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Immunoglobulin G (IgG) was measured in fetal, neonatal and colostral samples from the tammar wallaby (Macropus eugenii) in order to study the possibility of passively acquired immunity. Samples were obtained from young at a known stage of gestation and at known times (to the minute) after birth. IgG was present (in increasing levels of concentration) in fetal serum, neonatal serum and colostrum. Since the fetus and neonate are probably unable to make immunoglobulin (Ig), it is hypothesized that transplacental and trans-gut transmission takes place from mother to offspring. The vascular yolk sac placenta has a high concentration of IgG, and is the most likely route of transmission from mother to young. Some observations were made of IgA which was found only in colostrum. No Ig of either kind was found in yolk sac fluid.

Original languageEnglish
Pages (from-to)369-375
Number of pages7
JournalReproduction, Fertility and Development
Volume2
Issue number4
DOIs
Publication statusPublished - 1990

Keywords

  • colostrum
  • marsupial
  • passive immunity
  • transplacental

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