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硝酸铵影响红耳龟和中华条颈龟孵化及血液生理指标的研究
Effects of Ammonium Nitrate Fertilizer on Incubation and Blood Physiological Indices of Trachemys scripta elegans and Mauremys sinensis
傅丽容,贺斌,王雪,史海涛*
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作者单位:(海南师范大学生命科学学院,海口 571158)
中文关键字: 硝酸铵;红耳龟;中华条颈龟;血细胞
英文关键字: ammonium nitrate; Trachemys scripta elegans; Mauremys sinensis; blood corpuscle
中文摘要:研究孵化基质中硝酸铵胁迫对红耳龟Trachemys scripta elegans和中华条颈龟Mauremys sinensis孵化及稚龟血液生理指标的影响,采用不同浓度硝酸铵(0 mg/L0.01 mg/L0.1 mg/L)处理基质,在(30±0.5)℃下对两种龟卵进行孵化。结果表明:红耳龟的孵化率显著高于中华条颈龟(P<0.05),血细胞数量和形态变化明显,0.1 mg/L NH4NO3处理组红细胞数和白细胞数分别为(9.68±2.91)×1011/L(1.11±0.18)×1010/L,显著高于对照组(P<0.05),红细胞长短径比(1.71±0.14)与对照组和0.01 mg/L NH4NO3处理组差异显著(P<0.05);中华条颈龟血细胞数量和形态在各个处理组间未见显著差异。对比研究各项指标可知,红耳龟可以通过增加血细胞数量和改变红细胞形态提高免疫力对抗硝酸铵胁迫,提示对环境的适应性强于中华条颈龟。
英文摘要:In order to compare the stress response of baby Trachemys scripta elegans and Mauremys sinensis, we treated the substrate in which their eggs hatched with three different concentrations (0 mg/L, 0.01 mg/L, and 0.1 mg/L) of ammonium nitrate (NH4NO3). After hatching, the data of hatchability and various physiological parameters of blood were collected from these offspring. All eggs were incubated at 30℃±0.5℃. The results indicate that the hatching rate of T. scripta elegans was significant higher than that of M. sinensis (P<0.05). Accordingly, the blood parameters show different performance of the two species to the stressed environment. In T. scripta elegans, animals in group treated with 0.1 mg/LNH4NO3 were tested to possess more red and white blood cells ((9.68±2.91)×1011cells/L and (1.11±0.18)×1010cells/L respectively) than the control group (P<0.05). More over, the ratio of long and short diameter of red cell (1.71±0.14) is significantly higher than the other two groups (P<0.05). However, there is no significant difference between treatments in all of these parameter of M. sinensis. Hence, we could suggest that T. scripta elegans probably can improve its immunity by increasing the number of haemocyte and changing the morphology of red blood cell in respond to the stress of NH4NO3. In addition, our results could explain why T. scripta elegans is more adaptive than M. sinensis to some degree.
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国内统一连续出版物号:51-1193/Q |国际标准出版物号:1000-7083
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