Effects of dietary L-ascorbyl-2-polyphosphate on growth performance, haematological parameters, biochemical characteristics, and skeletal features of juvenile hybrid grouper (♀Epinephelus fuscoguttatus x ♂E. lanceolatus)

被引:5
作者
Ebi, Isabella [1 ]
Yong, Annita Seok Kian [1 ]
Lim, Leong-Seng [1 ]
Lin, Yu-Hung [2 ]
Mustafa, Saleem [1 ]
Shapawi, Rossita [1 ]
机构
[1] Univ Malaysia Sabah, Borneo Marine Res Inst, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
[2] Natl Pingtung Univ Sci & Technol, Dept Aquaculture, Pingtung, Taiwan
关键词
biochemical characteristic; growth; haematological parameter; hybrid grouper; skeletal deformities; vitamin C; VITAMIN-C REQUIREMENT; NONSPECIFIC IMMUNE-RESPONSES; ASCORBIC-ACID REQUIREMENT; SEABREAM SPARUS-AURATA; BROWN-MARBLED GROUPER; FEED-UTILIZATION; GIANT GROUPER; TIGER GROUPER; LIPID-LEVELS; PROTEIN;
D O I
10.1111/anu.13254
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
A 14-week feeding trial was conducted to determine the effects of dietary L-ascorbyl-2-polyphosphate on the growth performance, haematological parameters, biochemical characteristics, and skeletal features of juvenile hybrid grouper (female Epinephelus fuscoguttatus x male E. lanceolatus). Eight experimental diets containing graded vitamin C (VC) levels (0, 18, 45, 78, 144, 245, 386, and 762 mg/kg) were prepared and fed to triplicate groups of fish (initial body weight: 10.41 +/- 0.06 g). The final body weight, weight gain rate, specific growth rates, and fish survival increased when fed with diets supplemented with VC regardless of the supplementation level. Total feed intake reduction was observed in fish fed non-VC diet. Whereas no significant differences were detected in the feed conversion ratios and protein efficiency ratios among fish treatments. The hepatic VC concentration was positively correlated with dietary VC supplementation and reached a plateau when supplemented with more than 386 mg/kg diet. Higher total protein and alkaline phosphatase levels in blood serum and incidence of skeletal deformities were recorded in the fish fed with a control diet compared to other treatments. The results indicate that adding 18 mg/kg of VC is optimum and further increase does not provide any significant benefit to fish growth and health.
引用
收藏
页码:1135 / 1143
页数:9
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