| 英文摘要 |
There were three experiments in this study to investigate the requirement of lipid quality for broodstock and fry of potato groupers, Epinephelus tukula, and protein requirement or potato grouper fry. In the first experiment, three artificial diets with 40% crude protein and one trash fish as control group were fed to five kilogram of potato groupers cultured in the four outside concrete tanks (8 x 2.5 x 3 m).The experiment period was three months. In the second experiment, seven semipurified diets containing 40% crude protein contained 5% fish oil, linseed oil, sesame oil, corn oil, soybean oil, olive oil, and beef tallow. Each treatment group had three replicates and experiment duration was six weeks. In the third experiment, six semipurified diets with protein level ranging from 30 to 55% in 5% increments were evaluated to determine the protein requirement. Each treatment group had three replicates and experiment duration was four weeks. Five kilogram potato groupers fed diets containing fish oil or corn oil had significant higher weight gain than those fed trash fish or diet included with soybean oil. Potato grouper fry fed diet containing fish oil had significant higher weight gain than those fed with other treatments. Potato grouper fry fed the diet containing 40% crude protein had the significant higher weight gain than those fed other treatments. |