碩士 / 國立臺灣海洋大學 / 食品科學系 / 93 / Two experiments were conducted to quantify the optimum dietary p-aminobenzoic acid (PABA) requirements of juvenile grass shrimp (Penaeus monodon) and juvenile grouper (Epinephelus malabaricus).
Experiment I. Semi-purified basal diet supplemented with p-aminobenzoic acid at 0, 100, 300, 600, 1000, 1500, 3000 and 5000 PABA mg/kg diet providing the actual dietary value of 0, 108, 309, 603, 1027, 1501, 3060, 5233 mg PABA/kg diet, respectively. Each diet was fed to triplicate groups of P. monodon (initial weight 0.23 ± 0.01 g) in a non-recirculated rearing system for 8 weeks. Hepatic PABA concentration was higher (p<0.05) in shrimp fed diets supplemented with ≥ 1501 mg PABA/kg than shrimp fed diets with ≤ 603 mg PABA/kg. Muscle PABA concentration was higher in shrimp fed diets with ≥ 1027 mg PABA/kg than all the other dietary groups. Shrimp fed diets with ≤ 603 mg PABA/kg had higher hepatic lipid peroxidation than shrimp fed diets with ≥1027 mg PABA/kg. Analysis by polynomial regression of the hepatic PABA concerntration and by broken-line regression of the whole body peroxidation concentration of the shrimp against the analyzed dietary PABA concentration indicated that the optimal PABA requirements of the juvenile shrimp is approximately 1600-1968 mg PABA/kg diet.
Experiment II.Semi-purified basal diet supplemented with p-aminobenzoic acid at 0, 50, 100, 200, 400, 600, 800 and 1200 PABA mg/kg diet providing the actual dietary values of 0, 50, 104, 209, 408, 608, 812 and 1210 mg PABA/kg diet, respectively. Each diet was fed to triplicate groups of E. malabaricus (initial body weight 5.95 ± 0.02 g) in a recirculated rearing system for 8 weeks. Fish fed diets supplemented with ≥ 408 mg PABA/kg had significantly higher (p<0.05) weight gain than fish fed diets with ≤ 209 mg PABA/kg. Hepatic PABA concentration in fish fed diet with 608 mg PABA/kg was higher than all the other dietary groups; muscle PABA concentration in fish fed diet with 608 mg PABA/kg was higher than fish fed diets with ≤ 209 mg PABA/kg. Higher hepatic lipid peroxidation was in fish fed diets with ≤ 50 mg PABA/kg than fish fed diets with ≥ 608 mg PABA/kg. Analysis the weight gain, hepatic peroxidation concentration and hepatic PABA concentration of the fish against the analyzed dietary PABA concentration indicated that the optimal dietary PABA requirement of juvenile grouper is approximately 460-526 mg PABA/kg diet.
| Identifer | oai:union.ndltd.org:TW/093NTOU5253020 |
| Date | January 2005 |
| Creators | Yu-Chun Cheng, 鄭宇君 |
| Contributors | Shi-Yen Shiau, 蕭錫延 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 88 |
Page generated in 0.0129 seconds