Histological comparison of the dorsal ordinary muscles of wild and full‐cycle cultured Pacific bluefin tuna (Thunnus orientalis)
Histological comparison of the dorsal ordinary muscles of wild and full‐cycle cultured Pacific bluefin tuna (Thunnus orientalis)
复制标题
野生和全周期养殖太平洋蓝鳍金枪鱼（Thunnus orientalis）背部普通肌肉的组织学比较
DOI：
10.1002/jsfa.2542
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发表时间：
2006
影响因子：
4.1
通讯作者：
Y. Tsukamasa
中科院分区：
文献类型：
--
作者：
Y. Nakamura;M. Ando;M. Seoka;K. Kawasaki;Y. Tsukamasa
研究了野生（体重33.3 ± 0.9kg，n = 3）和全周期养殖（体重分别为13.1 ± 2.6（FC 1）、20.2 ± 1.0（FC 2）和28.5 ± 3.6（FC 3）kg，n = 3）太平洋蓝鳍金枪鱼背部普通肌头侧部分的组织学特性。与野生鱼相比，FC 1-3金枪鱼的CD-OMs水分含量低（P < 0.05），脂肪含量高（P < 0.05）。FC 1-3金枪鱼CD-OM肌纤维间的间隙中存在大量脂肪组织。FC 3金枪鱼的肌纤维直径显著低于野生鱼（P < 0.05）。野生金枪鱼CD-OM中肌原纤维被发达的肌浆网和线粒体所包围，而全周期养殖鱼CD-OM中肌原纤维间有许多糖原颗粒，并含有大量脂肪。特别是FC 3金枪鱼的CD-OM的糖原含量显著高于野生鱼（约50倍）。这些结果表明，饲养和运动条件影响金枪鱼肌肉的组织结构和代谢。版权所有© 2006化学工业协会
The histological properties of the cephalad parts of the dorsal ordinary muscles (CD-OMs) of wild (body weight 33.3 ± 0.9 kg, n = 3) and full-cycle cultured (body weights 13.1 ± 2.6 (FC 1), 20.2 ± 1.0 (FC 2) and 28.5 ± 3.6 (FC 3) kg, n = 3 respectively) Pacific bluefin tuna were investigated. The CD-OMs of FC 1–3 tuna showed low moisture content (P < 0.05) and high fat content (about six times more, P < 0.05) in comparison with wild fish. A large quantity of adipose tissue was observed in the wide spaces between muscle fibres in the CD-OMs of FC 1-3 tuna. The muscle fibre diameter of the CD-OM of FC 3 tuna was significantly lower than that of wild fish (P < 0.05). Myofibrils in the CD-OM of wild tuna were surrounded by a developed sarcoplasmic reticulum and mitochondria; however, there were many glycogen granules among the myofibrils and a large quantity of fat in the CD-OM of full-cycle cultured fish. In particular, the glycogen content of the CD-OM of FC 3 tuna was significantly higher (about 50 times) than that of wild fish. These results indicate that feeding and exercise conditions affect the histological structure and metabolism of the bluefin tuna muscle. Copyright © 2006 Society of Chemical Industry