| 不同育性三倍体长牡蛎性腺发育过程中的营养成分比较 |
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| 引用本文： | 王朔,薛茗元,杨琼,于红,李琪.不同育性三倍体长牡蛎性腺发育过程中的营养成分比较[J].水产学报,2021,45(1):88-97. |
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| 作者姓名： | 王朔 薛茗元 杨琼 于红 李琪 |
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| 作者单位： | 中国海洋大学海水养殖教育部重点实验室,中国海洋大学海水养殖教育部重点实验室,中国海洋大学海水养殖教育部重点实验室,中国海洋大学海水养殖教育部重点实验室,中国海洋大学海水养殖教育部重点实验室 |
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| 摘 要： | 为阐明不同育性三倍体长牡蛎性腺发育与营养成分变化的关系,实验对不育型和可育型三倍体长牡蛎性腺发育过程中的主要营养成分(糖原、总蛋白质和总脂肪含量)进行分析,并与二倍体长牡蛎进行比较。结果显示,三倍体长牡蛎性腺—内脏团、闭壳肌和外套膜3种组织中的糖原含量均显著高于同时期的二倍体长牡蛎,性腺—内脏团和闭壳肌中的总蛋白质含量则显著低于同时期的二倍体。随着性腺发育,可育型三倍体长牡蛎性腺—内脏团的糖原含量下降了31.88%,二倍体长牡蛎下降82.41%,而不可育型三倍体长牡蛎糖原含量下降了0.55%,这与糖原为配子发生供能密切相关。此外,不育型三倍体长牡蛎性腺—内脏团的糖原、总蛋白质和总脂肪含量在繁殖季节中均没有发现明显的波动,而可育型三倍体长牡蛎由于性腺一定程度的发育,其营养成分含量的变化趋势与二倍体类似。研究表明不育型和可育型三倍体长牡蛎在繁殖季节营养成分存在明显的差异,不育型三倍体的糖原品质性状优于可育型,这为长牡蛎育性控制育种提供了重要参考依据。
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| 关 键 词： | 长牡蛎 三倍体 不同育性 营养成分 |
| 收稿时间： | 2020/4/24 0:00:00 |
| 修稿时间： | 2020/9/22 0:00:00 |
Comparison of nutritional components of different fertility triploid Pacific oyster (Crassostrea gigas) during gonadal development |
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| WANG Shuo,XUE Mingyuan,YANG Qiong,YU Hong,LI Qi.Comparison of nutritional components of different fertility triploid Pacific oyster (Crassostrea gigas) during gonadal development[J].Journal of Fisheries of China,2021,45(1):88-97. |
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| Authors: | WANG Shuo XUE Mingyuan YANG Qiong YU Hong LI Qi |
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| Institution: | Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,Key Laboratory of Mariculture,Ministry of Education,Ocean University of China,Key Laboratory of Mariculture,Ministry of Education,Ocean University of China |
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| Abstract: | There are two types of triploid in the Pacific oyster (Crassostrea gigas), fertile and sterile types. In order to clarify the relationship between gonadal development and the changes of nutritional components in different fertility triploid Pacific oysters, this study analyzed the main nutritional components (glycogen, total protein and total fat content) in the gonadal development of sterile and fertile triploid Pacific oysters, and compared them with diploid Pacific oysters. The results showed that the content of glycogen in gonad-visceral mass, adductor muscle and mantle of triploid Pacific oysters was significantly higher than that of diploid Pacific oysters in the same period (P < 0.05), and the content of total protein in gonad-visceral mass and adductor muscle of triploid Pacific oysters was significantly lower than that of diploid Pacific oysters in the same period (P < 0.05). During gonadal development, the glycogen content in gonad-visceral mass of fertile triploid Pacific oysters decreased by 31.88%, that of diploids decreased by 82.41%, and that of sterile triploid Pacific oysters decreased by 0.55%, which was closely related to the energy supply of glycogen for gametogenesis. In addition, the content of glycogen, total protein and total fat in gonad-visceral mass of sterile triploid Pacific oysters did not fluctuate significantly in the breeding season, while the trend of nutrient content of fertile triploid Pacific oysters was similar to that of diploid because of the development of gonad to a certain extent. The results showed that there were significant differences in nutritional components between sterile and fertile triploid Pacific oysters during the breeding season, and the glycogen quality of sterile triploid was better than that of fertile triploid, which provided an important reference for the breeding of fertility control of Pacific oysters. |
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| Keywords: | Crassostrea gigas triploid different fertility nutritional components |
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