Choline Essentiality and Its Requirement in Diets for Juvenile Parrot Fish (Oplegnathus fasciatus).
Choline Essentiality and Its Requirement in Diets for Juvenile Parrot Fish (Oplegnathus fasciatus).
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DOI：
10.5713/ajas.14.0532
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发表时间：
2015-05
期刊：
影响因子：
--
通讯作者：
Lee KJ
中科院分区：
文献类型：
--
作者：
Khosravi S;Jang JW;Rahimnejad S;Song JW;Lee KJ
为评价在鹦鹉鱼饲料中添加胆碱的必要性，进行了12wk的饲养试验。在5个等氮等热量日粮中分别添加0(对照组)、500 mg/kg、1000 mg/kg和2000 mg/kg胆碱，不添加胆碱的阳性对照日粮添加0.3%的2-氨基-2-甲基-1-丙醇作为胆碱生物合成抑制剂(分别记为Con、C500、C1000、C2000和Con+)。三组鱼(体重8.8±0.01g)以4%体重的比例饲喂其中一种饲料，每天两次。投喂CON+饲料的鱼体生长性能和饲料利用率显著低于其他鱼组。在基础饲料中添加胆碱对鱼的生长没有显著影响。投喂CON+饲料的鱼肝脏脂肪含量最高，且与肝脏胆碱浓度呈负相关，但差异不显着。此外，在喂食CON+饲料的鱼中，发现肝脏亚油酸、二十碳五烯酸和二十二碳六烯酸的含量显著增加。天然免疫参数包括呼吸爆发和髓过氧化物酶活性不受饲料胆碱水平的显著影响。本研究的结果表明，−-1饲料中胆碱浓度约为230mgkg时，能满足鹦鹉鱼的需要。
A 12-wk feeding trial was conducted to evaluate the essentiality of choline supplementation in diets for parrot fish. Five isonitrogenous and isocaloric diets were supplemented with 0 (as control), 500, 1,000, and 2,000 mg choline per kg diet, and a positive control diet without choline contained 0.3% of 2-amino-2-methyl-1-propanol as choline biosynthesis inhibitor (designated as Con, C500, C1000, C2000 and Con+, respectively). Triplicate groups of fish (body weight, 8.8±0.01 g) were fed one of the experimental diets at a rate of 4% body weight twice daily. The fish fed Con+ diet revealed significantly lower growth performance and feed utilization efficiency than other fish groups. Supplementation of choline to the basal diet did not significantly influence fish growth. The highest liver lipid content was observed in fish fed the Con+ diet and inversely correlated with liver choline concentration although the differences were not significant. Also, significantly higher liver linoleic, eicosapentaenoic and docosahexaenoic acid contents were found in fish fed the Con+ diet. Innate immune parameters including respiratory burst and myeloperoxidase activities were not significantly affected by dietary choline levels. The findings in this study conclude that choline concentration of approximately 230 mg kg−1 diet meets the requirement of parrot fish.
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影响因子：
4.5
作者：
Lim, Se-Jin;Lee, Kyeong-Jun
通讯作者：
Lee, Kyeong-Jun
DOI：
10.5713/ajas.2010.90494
发表时间：
2010-07-01
期刊：
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
影响因子：
--
作者：
Galaz, German Bueno;Kim, Sung-Sam;Lee, Kyeong-Jun
通讯作者：
Lee, Kyeong-Jun
影响因子：
4.2
作者：
GLENDE, EA;CORNATZER, WE
通讯作者：
CORNATZER, WE
DOI：
10.5713/ajas.2009.80648
发表时间：
2009-06-01
期刊：
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES
影响因子：
--
作者：
Kim, Sung-Sam;Bueno Galaz, German;Lee, Kyeong-Jun
通讯作者：
Lee, Kyeong-Jun
影响因子：
4.5
作者：
Mai, Kangsen;Xiao, Lindong;Ren, Mingchun
通讯作者：
Ren, Mingchun