摘要
在实验室条件下测定了凡纳滨对虾Litopenaeus vannam ei在不同温度和体质量条件为空腹状态和饱食状态下的耗氧率和氮、磷排泄率,探讨了不同条件下因摄食引起的特殊动力作用(SDA)和外源性氮、磷排泄率。结果表明,温度和体质量对凡纳滨对虾的基础代谢和摄食代谢都有显著的影响。凡纳滨对虾摄食后的耗氧率平均提高44.5%,SDA平均为0.120 mg.(g.h)-1,摄食后氮排泄率平均提高42.9%,磷排泄率平均提高37.0%;氮、磷排泄率的比值(N/P)也显著提高,其内源氮排泄率/内源磷排泄率为11.11,外源氮排泄率/外源磷排泄率为27.71。
The effects of starvation and satiation on oxygen consumption, nitrogen excretion and phosphorous excretion of white shrimp （Litopenaeus vannarnei ） were examined in the laboratory to investigate metabolism of this species influenced by feeding under different temperatures and individual weights. The experimental results indicated that the metabolic rate of the shrimp was affected by ambient temperature and fresh weight. The oxygen consumption rate, the nitrogen excretion rate and the phosphorous excretion rate of full-fed shrimp increased by 44.5%, 42.9% and 37.0% respectively compared with those of starved shrimp, and specific dynamic action （SDA） of the shrimp was 0. 120 mg · （g·h）^-1. Moreover, the ratio of excreted nitrogen to excreted phosphorous in satiated shrimp also increased significantly compared with starved shrimp. The endogenous N/P ratio and the exogenous N/P ratio were 11.11 and 27.71, respectively.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2006年第2期44-48,共5页
Journal of Tropical Oceanography
基金
广东省自然科学基金项目(04010453)
广东省教育厅"千百十工程"优秀人才培养基金项目(Q02061)
