Growth, Survival and Physiological Condition of Cultured Marron, Cherax tenuimanus （Smith, 1912） Fed Different Levels of Organic Selenium  

作　　者：Rudy Agung Nugroho Ravi Fotedar 

机构地区：[1]Sustainable Aquatic Resources and Biotechnology, Faculty of Science and Engineering, Curtin University, Bentley WA 6102,Australia

出　　处：《Journal of Agricultural Science and Technology(B)》2013年第2期125-135,共11页农业科学与技术（B）

摘　　要：A 90-day feeding experiment was conducted to evaluate the effects of three levels of dietary supplementation of organic selenium （OS） on physiological and immunological responses of marron （Cherax tenuimanus）. Three levels viz. 0.1, 0.2 and 0.3 g kg^-1 of basal diet of Sel-Plex as a source of OS. were prepared and tested against the basal diet, which was used as a control. Each diet was fed to four replicated groups of marron, （initial mean weight of 39.43 ± 0.55 g）, at a rate of 3% body weight every second day. At the end of the feeding experiment, dietary inclusion of all Sel-Plex levels significantly improved specific growth rate （SGR） and survival of marron. Inclusion of Sel-Plex above 0.1 g kg^-1 resulted in significantly higher hepatopancreatic moisture level （HM） and wet hepatosomatic index （Hiw）, of marron than matron fed without Sel-Plex. Total Se level in the hepatopancreas was the highest （5.41 ± 0.28 μg g^-1） in the matron fed 0.2 g kg^-1 of Sel-Plex, whereas muscle accumulated significantly higher level of Se when man-on were fed 0.3 g kgl of dietary Sel-Plex. It is therefore suggested that the beneficial dietary supplementation levels of Sel-Plex in marron should range from 0.2 to 0.3 g kg^-1.

关 键 词：Organic selenium physiological responses marron 

分 类 号：S965.215[农业科学—水产养殖] S816.53[农业科学—水产科学]