Precipitin Production in Chickens

[摘要] 1. 1. Aging of chicken antisera at 4°C or at -20°C resulted in: (a) an increase in interfacial titers with tests performed in 1.8% NaCl. (b) a decrease in nitrogen precipitation when the quantitative tests were performed in 8% NaCl. (c) an increase in nitrogen precipitation with most antisera when the quantitative tests were performed in 1% NaCl.2. 2. Inactivation of chicken complement by versene is to be preferred to heat (56°C, ½ hour) since the latter may contribute to the co-precipitation of nonspecific nitrogen when the quantitative test is performed in 8% NaCl.3. 3. Treatment with versene decreased the nitrogen precipitation in the antigen excess region of the precipitin curve. This was quite evident in 1% NaCl.4. 4. Some explanations for the points noted above were given.

[学科分类] 生物科学（综合）