...
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Serum triglycerides and ss-hydroxybutyrate predict feeding status in green turtles (Chelonia mydas): Evaluating a single blood sample method for assessing feeding/fasting in reptiles
【24h】

Serum triglycerides and ss-hydroxybutyrate predict feeding status in green turtles (Chelonia mydas): Evaluating a single blood sample method for assessing feeding/fasting in reptiles

机译:血清甘油三酸酯和ss-羟基丁酸酯可预测绿海龟(Chelonia mydas)的摄食状况:评估单血样方法评估爬行动物的摄食/禁食

获取原文
获取原文并翻译 | 示例
           

摘要

The foraging success or feeding rate of an animal is important information for ecologists and wildlife managers but can be difficult to assess, particularly in marine vertebrates that are hard to follow at sea. Here we evaluate a method for determining recent feeding history using a single blood sample by measuring the concentration of relevant serum metabolites. Five captive green turtles were either fed a maintenance diet or subjected to fasting periods ranging from 5-15 days. Serial serum samples were collected during both fed and fasted periods, and we determined triglyceride, K-hydroxybutyrate, and glycerol concentrations using spectrophotometric assays. Serum triglyceride and glycerol concentrations decreased during fasting periods, while serum K-hydroxybutyrate concentration increased during fasts. For triglyceride and glycerol, this decrease apparently occurred in the first 5 days of fasting and was unaltered by further fasting. 15-hydroxybutyrate concentration continued to increase during longer fasting periods. The decrease in serum glycerol was unexpected and may be due to metabolic down-regulation in fasted turtles. Serum triglyceride and 15-hydroxybutyrate appear to be good indicators of feeding state and can be applied to wild turtles.
机译:动物的觅食成功率或觅食率对生态学家和野生动植物管理者而言是重要的信息,但可能难以评估,尤其是在海上难以追踪的海洋脊椎动物中。在这里,我们评估了一种通过测量相关血清代谢物的浓度,使用单一血样确定近期喂养史的方法。给五只圈养的绿海龟喂食维持性饮食或禁食5-15天。在进食和禁食期间收集了连续的血清样品,我们使用分光光度法测定了甘油三酸酯,K-羟基丁酸酯和甘油的浓度。禁食期间血清甘油三酸酯和甘油浓度降低,而禁食期间血清K-羟基丁酸酯浓度升高。对于甘油三酸酯和甘油,这种减少显然发生在禁食的前5天,并且通过进一步的禁食并没有改变。在较长的禁食期间,15-羟基丁酸酯浓度继续增加。血清甘油的降低是出乎意料的,这可能是由于禁食龟体内代谢的下调所致。血清甘油三酸酯和15-羟基丁酸酯似乎是喂食状态的良好指标,可应用于野龟。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号