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THE NATURE OF THE OPSONINS IN ADULT HEN SERUM AND DEVELOPING CHICK EMBRYOS TO CERTAIN GRAM‐NEGATIVE BACTERIA
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References
1964
Year
BiologyEmbryologyDevelopmental BiologyAnimal SciencePoultry DiseasePathogenesisVeterinary SciencePathologyEducationYolk Sac MembraneChick EmbryosVeterinary MicrobiologyMicrobiologyReproductive BiologyPoultry FarmingMedicinePoultry ScienceMacroglobulin Antibody
Summary A study has been made of the opsonins present in the serum of developing chick embryos against certain strains of gram‐negative bacteria. Comparison has been made with opsonins in serum from adult normal hens and from specifically immunised birds against the same bacterial strains. It has been shown that only 7S globulins are transferred across the yolk sac membrane, the macroglobulin antibody being passed to the chick on hatching across the intestinal epithelium.