摘要
为研究新吉富罗非鱼(Oreochromis niloticus)对环境盐度变化的适应性,将生长于淡水中的新吉富罗非鱼暂养在盐度为18的水体中,31 d后测定鱼体血液部分生理生化指标。结果表明,新吉富罗非鱼鱼体血红蛋白(HGB)和红细胞数(RBC)分别从淡水中的(63.80±0.38)mg/m L、(188.33±14.87)×1010个/L下降至(55.00±0.53)mg/m L、(161.67±6.64)×1010个/L,而白细胞数(WBC)出现增加,血浆比重、血沉方面变化不明显;生化指标中肌酐(Crea)、葡萄糖(GLU)、血浆总蛋白(TP)、钙(Ca)、磷(P)和氯(Cl)含量均较淡水中偏高,而尿素氮(BUN)呈现下降,表明广盐性的新吉富罗非鱼在血液生理生化指标方面对水体盐度的改变具有一定的适应性。
In this study, some blood physiological and biochemical indexes of new gift nile tilapia （Oreochromis niloticus） were measured during the fish cultured at different salinities （0,18） for 31 d,respectively. The results showed that at salinity 18, the hemoglobin （HGB） and the red blood cells （RBC） respectively from （63.80±0.38）mg/mL,（188.33±14.87）×10^10 Cell/L of control group dropped to（55.00±0.53）mg/mL,（161.67±6.64）×10^10 Cell/L, the white blood cell （WBC） was higher than the control group,both the plasma and the blood sedimentation were basically the same.In the biochemical indexes, creatinine （Crea）, glucose （GLU）,total protein （TP）,content of calcium （Ca）,phosphorus （P） and chlorine （C1） were higher than the control group,and urea nitrogen （BUN） was lower than the control group. Through the analysis, the tilapia possessed better osmoregulation abilities. It further confirmed that the osmotic adjustment will affect its nutrient content.
出处
《湖北农业科学》
2015年第10期2448-2450,共3页
Hubei Agricultural Sciences
基金
国家现代农业产业技术体系建设项目(CARS-49)
