Effects of Temperature upon “Naturally Occurring” Blood Group Agglutinins in Fresh Water Catfish

[摘要] “Naturally occurring” isohemagglutinins and heterophilic agglutinins in 10 fresh water catfish ( Ictalurus nebulosus , Le Sueur, and Ictalurus catus , Linneaus), disappeared from circulating blood following a decrease in storage temperature from 25C° to 5°C. They reappeared subsequent to an increase in storage temperature from 5°C to 25°C.The changes in agglutinating activity were accompanied by corresponding alterations in total body weight, total serum proteins and in certain electrophoretic components. It is suggested that the change in immunologic status is but one reflection of general metabolic shifts associated with fluctuations in ambient temperature.

[学科分类] 生物科学（综合）