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Table 1 Normal and abnormal embryonated eggs from immunized and control hens

From: Detection in chick embryo of fetoproteins not recognized by the dam's immune system and of soluble alloantigens. Presumptive teratogenic and abortogenic capacity of their specific IgY

Source Total N (%) Normal Abnormal N (%) Ratio
   N (%) ?a Living Dead Total T/Anb An/Nc
Immunized hens 81 (100) 21 (25.9) 27 (33.3) 11 (13.2) 22 (27.1) 60 (74.1) 1.35 2.85
Control hens 66 (100) 46 (69.7) 5 (7.5) 2 (3.0) 13 (19.7) 20 (30.3) 3.3 0.43
  1. a ?, abnormal but uncertain as to whether the embryo was dead or alive. b Total/Abnormal c Abnormal/Normal