机构地区: 暨南大学生命科学技术学院水生生物研究所
出 处: 《生态学杂志》 1999年第3期15-18,9,共5页
摘 要: 罗氏沼虾[Macrobrachiumrosenbergi(DeMan)]具有较高的经济价值,为当今世界上淡水虾类养殖的主要品种之一。由于我国没有天然的亲虾资源,人工育苗所需的亲虾靠养殖和人工越冬所得。因此研究亲虾的生理生态,可为提高人工繁殖技术的理论... In order to test the effect of temperature on its metabolism,the parent female of Macrobrachium rosenbergii (De Man) were reared under a series of temperature, 20, 24, 28 and 32 ℃. Both respiration rate (RO) and excretion rate of ammonia-N (RN) increased with increasing temperature (T). Relationship between those parameters can be expressed as: RO = 0.1690 e0.1138T and RN = 0.7×10 - 4 e0.1981T , respectively. The energy consumption and the ratio of metabolic substrate were significant differences in different temperature. Energy consumption increased with increasing temperature, reaching 4 times higher at 32℃ than at 20℃. The ratio of metabolic substrate showed that protein was the first, followed by carbohydrate and lipid at 24 and 28℃, and ratio of protein further increased at 32℃. However, if temperature went down to 20℃, lipid became the dominant substrate instead of protein.