上海海洋大学学报2026，Vol.35Issue(1)：13-23,11.DOI:10.12024/jsou.20240604577
长期高温驯化对尼罗罗非鱼血液学的影响
Effects of long-term high-temperature domestication on the hematology of Nile tilapia(Oreochromis niloticus)
摘要
Abstract
In order to understand the effects of long-term high-temperature on blood-related indexes and tissue structure of Nile tilapia(Oreochromis niloticus),tail vein blood analysis and microscopic observation techniques were used to compare the hematological parameters and microstructural changes of the spleen and liver of Nile tilapia at normal-temperature(28 ℃)with those at long-term high-temperature domestication(34 ℃).The results showed that the number of erythrocytes and hemoglobin content of tilapia in the high-temperature group were significantly higher than those in the normal-temperature group;although the morphology of hemocytes did not show any difference between the two groups of temperature conditions,the sizes of erythrocytes,monocytes,and neutrophils tended to decrease significantly in the high-temperature group.In addition,observations of tissue sections showed that long-term high-temperature domestication led to an increase in the number of erythrocytes,an expansion of the red pulp area,a relative decrease in the white pulp area,and an increase in the number of melano-macrophage in tilapia spleen tissues,as well as an intensification of hepatocyte vacuolization and an increase in the number of melano-macrophage in liver tissues.These results indicated that the long-term high-temperature environment had significant effects on blood indices and hematopoietic tissues of Nile tilapia,and it was hypothesized that they adapted to the high-temperature environment by regulating their hematopoietic function and immune response.This study provides an important reference for understanding the physiological adaptation mechanism of Nile tilapia under long-term high-temperature,and also provides a scientific basis for tilapia aquaculture practice in the context of global warming.关键词
尼罗罗非鱼/高温驯化/血液指标/脾脏/肝脏Key words
Nile tilapia/high-temperature domestication/blood indices/spleen/liver分类
农业科技引用本文复制引用
廖萍得,林一川,张文娜,江守文,许强华..长期高温驯化对尼罗罗非鱼血液学的影响[J].上海海洋大学学报,2026,35(1):13-23,11.基金项目
国家重点研发计划(2022YFD2400800) （2022YFD2400800）
国家自然科学基金面上项目(32470557) （32470557）
