globalchange  > 气候变化与战略
DOI: 10.1007/s10695-019-00709-3
论文题名:
Cadmium exposure affects growth performance, energy metabolism, and neuropeptide expression in Carassius auratus gibelio
作者: Cai Y.; Yin Y.; Li Y.; Guan L.; Zhang P.; Qin Y.; Wang Y.; Li Y.
刊名: Fish Physiology and Biochemistry
ISSN: 9201742
出版年: 2020
卷: 46, 期:1
语种: 英语
英文关键词: Cadmium ; Food intake ; Neuropeptide ; Thyroid hormone
英文摘要: Cadmium (Cd) is the most abundant heavy metal in aquatic environments and is easily detected on a global scale. Carassius auratus gibelio is a common aquaculture species. The aim of this study was to explore the toxic effects of 1, 2, and 4 mg/L Cd on the energy metabolism, growth performance, and neurological responses of C. gibelio. After 30 days of exposure, Cd concentrations in the liver and brain were significantly increased in Cd-exposed groups. Low-level Cd exposure (1 mg/L) increased weight and length gains, as well as food intake, in the fish. Acetylcholinesterase activity decreased significantly in the Cd-exposed groups. Energy metabolism levels (as reflected by oxygen consumption, ammonia excretion rate, and swimming activity), as well as serum T3 and T4 levels, increased significantly in the fish exposed to 1 mg/L Cd. However, energy metabolism and serum T3/T4 levels decreased significantly in the 4-mg/L Cd group. Neuropeptide gene expression levels in brain were consistent with the observed changes in food intake. In the Cd-exposed groups, the expression levels of neuropeptide Y (NPY), apelin, and metallothionein (MT) increased significantly, while those of pro-opinmelanocortin (POMC), ghrelin, and corticotrophin-releasing factor (CRF) decreased significantly. Our data suggested that in fish, low doses of Cd might increase food intake, as well as weight and length gains, but high doses of Cd might have the opposite effect. These effects might be a result of neurohumoral regulation. Long-term exposure to low doses of Cd might cause weight gain and affect food intake. © 2019, Springer Nature B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159955
Appears in Collections:气候变化与战略

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作者单位: College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China; Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, Changchun, 130118, China; Laboratory of Ginseng and Antler Products Quality and Safety Risk Assessment, Ministry of Agriculture, Changchun, 130118, China; College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China; Health Monitoring and Inspection Center of Jilin Province, Changchun, 130062, China

Recommended Citation:
Cai Y.,Yin Y.,Li Y.,et al. Cadmium exposure affects growth performance, energy metabolism, and neuropeptide expression in Carassius auratus gibelio[J]. Fish Physiology and Biochemistry,2020-01-01,46(1)
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