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Selective Secretion of Circulating Antibodies in the Milk of the Rat

Naturevolume 192pages883884 (1961) | Download Citation



PASSIVE immunity is transmitted from mother to young in the rat, as in the mouse1, partly before birth, but chiefly after birth by way of the milk and the gut of the suckling. Postnatal transmission continues until the twentieth day of age2, when the capacity of the gut of the young rat to absorb antibody terminates although antibody continues to be secreted in the milk. The lactating female rat was chosen for investigating the transmission of antibody from the circulation to the milk.

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  1. Department of Zoology, University College of North Wales, Bangor, Caernarvonshire



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