斑节对虾的饥饿试验和补偿生长  

The compensatory growth of Penaeus monodon after starvation

作　　者：杨其彬[1] 姜松[1,2] 黄建华[1] 李晓兰[1] 邱丽华[1] 周发林[1] 江世贵[1] 李沐[1,2] 

机构地区：[1]中国水产科学研究院南海水产研究所,农业部南海渔业资源开发利用重点实验室,广东广州510300 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《南方水产科学》2013年第5期25-31,共7页South China Fisheries Science

基　　金：现代农业产业技术体系建设专项资金(CARS-47);广东省海洋渔业科技推广专项资金(A201101B03,A201201C01);中国水产科学研究院基本科研业务费专项资金(2013A0502)

摘　　要：研究了(25.0±1.5)℃下斑节对虾(Penaeus monodon)[初始体质量(1.60±0.01)g]饥饿0 d、2 d、4 d、6 d和8 d后再饱食投喂18 d、16 d、14 d和12 d的补偿生长和体组成变化。结果显示,饥饿2 d的斑节对虾体质量上升,脂肪质量分数下降,而水分、灰分质量分数增加,但蛋白质质量分数没有明显改变。随着饥饿时间的延长,斑节对虾的体质量及蛋白质、脂肪等质量分数持续下降,水分和灰分质量分数持续上升。试验结束时饥饿2d和饥饿4 d试验组斑节对虾的体质量略小于对照组,虾体的营养组成也均接近或达到对照组水平,而饥饿6 d和饥饿8 d试验组的斑节对虾的体质量则远低于对照组,且虾的身体营养组成与对照组具有显著性差异(P<0.05)。在恢复生长过程中所有饥饿处理组的食物转化率(FCE)均高于对照组,各饥饿处理组的饲料系数(FCR)均低于对照组。研究结果表明,饥饿2 d和4 d的斑节对虾在恢复正常投喂之后具有部分补偿生长效应,这主要是由于恢复摄食后食物转化率提高的结果。We conducted compensatory growth experiment on black tiger shrimp, Penaeus monodon [ with initial wet weight of （ 1.60± 0. 01 ） g ] , after suffering from starvation for days at （25.0 ± 1.5 ） ℃. The different groups, including control （ C ） , S2 （ starva- tion for 2 days） , S4, S6 and S8, were deprived of food for 0 d, 2 d, 4 d, 6 d and 8 d, respectively. Then each group was fed a- gain ad libitum for some time. Starved for 2 d, the weight of giant tiger shrimp increased slightly, the lipid decreased, the contents of water and ash increased significantly （ P 〈 0. 05 ）, while the contents of protein did not obviously change. With prolonged starvation, body weight, protein contents and fat continued to decline, while the contents of moisture and ash continued to rise. At the end of the experiment, the body weight of group S2 and S4 was slightly lower than that of control group, but the composition of shrimp body was closed to or on the same level with the control group. The body weight of group S6 and Sg was far lower than the control group, and the composition of shrimp body was significantly different from the control group. During the recovery growth, the food conversion efficiency of each experimental group was higher than that of the control group, while the food conversion rate of each experimental group was lower than that of the control group. The results indicate that there is incomplete compensato^y effect during starvation of P. numodon, and the compensatory growth is due to the increase of food conversion efficiency during re-feed.

关 键 词：斑节对虾 饥饿 补偿生长 身体营养成分 

分 类 号：S917.4[农业科学—水产科学]