Comparison of Growth Performance, Nutritional Composition, and Muscle Transcriptome between Two Cultured Varieties of the Chinese Mitten Crab (<i>Eriocheir sinensis</i>)
Ziyu Wang,
Peiying Huang,
Xiaoyong Li,
Jianmin Pei,
Wenzhen Liu,
Jiahao Hou,
Linjie Li,
Hongxiang Fan,
Liugen Zeng,
Daxian Zhao
Affiliations
Ziyu Wang
Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang 330031, China
Peiying Huang
Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang 330031, China
Xiaoyong Li
Department of Animal Husbandry and Aquatic Technology Extension and Application, Jiangxi Agricultural Technology Extension Center, Nanchang 330046, China
Jianmin Pei
Department of Animal Husbandry and Aquatic Technology Extension and Application, Jiangxi Agricultural Technology Extension Center, Nanchang 330046, China
Wenzhen Liu
Department of Animal Husbandry and Aquatic Technology Extension and Application, Jiangxi Agricultural Technology Extension Center, Nanchang 330046, China
Jiahao Hou
Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang 330031, China
Linjie Li
Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang 330031, China
Hongxiang Fan
Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang 330031, China
Liugen Zeng
Nanchang Academy of Agricultural Sciences, Nanchang 330038, China
Daxian Zhao
Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Nanchang 330031, China
This study evaluated the disparities in growth performance and nutritional composition between two common Chinese mitten crab varieties, “Jianghai 21” and “Changjiang 2”, cultured in Jiangxi Province. Over the breeding period, parameters such as body weight, height, carapace length and width, and lengths of the second and third legs exhibited increases. Growth indices of “Jianghai 21” surpassed those of “Changjiang 2” during the intermediate and late breeding phases. While “Changjiang 2” demonstrated significantly higher crude lipid content than “Jianghai 21”, the latter exhibited markedly higher levels of total amino acids (TAAs), essential amino acids (EAAs), and delectable amino acids. Although overall nutrient composition did not significantly differ, TAA and EAA contents in the hepatopancreas were notably greater in “Jianghai 21” than in “Changjiang 2”. Moreover, a total of 901 differentially expressed genes (DEGs) were identified between the two varieties, with 560 upregulated and 341 downregulated. These DEGs were primarily associated with pathways related to fatty acid degradation, metabolism, and growth regulation. The observed variances in growth performance and nutrient composition between “Jianghai 21” and “Changjiang 2” suggest potential regulation by relevant genes. In summary, the results showed that the growth performance of “Jianghai 21” is greater than that of “Changjiang 2”, offering valuable insights for the selection of aquaculture varieties in the region.
