title: Study on the variation of precipitin reactions in normal sera of chickens.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002645:Chickens / Q000276:immunology*; D004530:Egg Yolk; D005260:Female; D008297:Male; D011233:Precipitin Tests; D011234:Precipitins; D013045:Species Specificity
chemical_list: D011234:Precipitins